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PORTABLE SANDERS AND POLISHERS : PURPOSE AND TYPES

Portable sanders and polishers are used for surface finishing of materials such as metal, wood, ceramics, and plastics. Both tools are Lightweight and fairly easy cooperate.

They can be powered electrically or pneumatically and can be light-duty or heavy duty.

Fig.1 - Portable sanders - Lijadoras portátiles

Portable sanders are used to remove paint, rust, corrosion, and imperfections from the surface of workplaces to produce a smooth surface for finishing. Field and machine shop maintenance personnel use the disk-type portable sander (Figure 1). The disk-type portable sander has a high-speed motor that rotates an abrasive disk, wire wheel, or a grinding wheel to prepare a surface for finishing. For sanding, a disk of abrasive paper is mounted with a flexible backing pad on the motor spindle (Figure 2). The basic motor unit is similar to the motor unit used for angle grinding, but with sanding there is no need for a wheel guard. On some models the motor spindle can be locked by depressing a lock button to install or remove the sanding disks. A side handle on the motor housing is used to support the sander during operation. This handle can be removed and screwed into the opposite side of the motor housing for left-handed operation. Pneumatic sanders have an advantage over electric sanders because they are lighter in weight and easier to handle which usually produces a better finished product.

Fig.2 - Portable sanders configurations - Configuraciones de lijadoras portátiles

NOTE: Portable sanders are not intended for use as portable abrasive cutoff saws. The torque for cut off sawing will ruin the soft gearing in the sander motor unit.

Various abrasive disks are used in the operation of the portable electric sander. These disks consist of different abrasive grains that have been bonded or glued onto a cloth or paper disk.

The backing material that supports the abrasive disk is made of a tough vulcanized rubber or fiber that can withstand hard use and constant flexing. Normally, the abrasive grain used on the disk is aluminum oxide, and the bonding agent is glue or special resin. Abrasive disks come in open-coat or closed-coat types, depending on the work to be performed.

The closed-coat disk has the abrasive grains bonded close together, while the open-coat disk has the abrasive grains spaced further apart. Open-coat abrasive disks are used for sanding soft materials that could possibly load up a closed coat disk, for example, wood sanding, removing paint and rust, and plastic. Closed-coat abrasive disks are used for sanding metal, finishing ceramics, and for smoothing rougher sanded areas.

Most portable sanders come with an instruction manual and those accessories that the manufacturer recommends for its use. These accessories can include a sanding setup which includes a flexible rubber backing plate, several types of sanding disks, and the hardware to secure the disk to the motor assembly. Other accessories may include flexible grinding disks with wheel guards, wire wheels, and odd shaped grinding cups with the appropriate wheel guard. Only use accessories approved by the manufacturer to avoid injury or damage to equipment.

The portable polisher (Figure 3) is used to produce a super finish or shine to the workpiece surface. Polishing or buffing a surface is desirable at times to increase smoothness and make the surface easier to clean. By polishing a surface, a workpiece can also be made more wear resistant. Portable polishers are generally more powerful than portable sanders since they encounter a greater frictional resistance when operation, portable polishers operate at slower speeds than in portable sanders so as not to mar the finished surface.

Pneumatic portable polishers are lighter in weight than electric models and may make fewer buffing marks on the finish. In order to improve the surface quality of a workpiece through polishing, it is necessary to use a soft bonnet or cover over the sander backing pad. Lamb's wool polishing bonnets are recommended with a soft rubber cushion pad separating the bonnet and the backing pad. Polishing compound, which is a mild abrasive, is used to help polish the surface. A left- or right-handed side handle is attached to the motor housing to help control the polisher during operations.

OPERATIONS WITH THE PORTABLE SANDER AND POLISHER

Operating the portable sander is difficult due to the rotating force of the disk, so the quality of the work depends mostly on the experience of the machine operator. Hold the portable sander so that the abrasive disk forms an angle of approximately 15° to the workpiece surface (Figure 4). Apply just enough pressure against the sander to bend the sanding pad and abrasive disk so that about 2 inches of the disk contact the surface. Move the sander from side to side, overlapping each path with the next. If the sander cuts irregularly or is hard to control, the sander is most likely at an angle less than the required 15° to the workpiece. If the sander gouges or leaves rough edges, the angle formed by the sander is most likely too great. When the sander is operating, keep it moving back and forth across the workpiece or lift it free to avoid damaging the surface.

Fig. 4 - Correct and incorrect methods of using the electric sander - Métodos correctos e incorrectos de usar la lijadora portátil

The portable polisher looks like the portable sander but it is built with a slower speed and high torque needed for polishing. Polishing is performed by placing the spinning lamb's wool polishing bonnet lightly against the workpiece and moving the polisher lightly back and forth while maintaining a light pressure on the workpiece. Avoid pressing down too hard, or the surface could get damaged. Use separate polishing bonnets for different polishing abrasives, glazes, or waxes. Reapply polishing compound as needed to keep a smooth finish.

 

 

LIJADORAS Y PULIDORAS PORTÁTILES : PROPÓSITO Y TIPOS

Las lijadoras y las pulidoras portátiles se utilizan para el acabado superficial de materiales tales como metal, madera, cerámica, y plásticos. Ambas herramientas son livianas y bastante maniobrables.

Pueden ser accionadas eléctricamente o neumáticamente y pueden ser de poca potencia o para gran demanda.

Las lijadoras portátiles se utilizan para quitar pintura, óxido, corrosión, e imperfecciones de la superficie de lugares de trabajo para producir una superficie lisa como terminación. El personal de mantenimiento de máquinas de taller o campo utiliza la lijadora portátil tipo disco (figura 1). La lijadora portátil tipo disco tiene un motor de alta velocidad que hace girar un disco abrasivo, un disco de alambre, o una rueda de abrasión para preparar una superficie para su terminación. Para lijado, un disco de esmeril se coloca con un soporte flexible de forro en el eje del motor (figura 2). La unidad de motor básica es similar a la unidad de motor usada para amoladora angular, pero con la lija no hay necesidad de un protector del disco. En algunos modelos el eje del motor puede ser trabado presionando un botón de bloqueo para instalar o para quitar los discos de lija. Una empuñadura lateral en el compartimento del motor es utilizada para soportar la lijadora durante la operación. Esta empuñadura se puede quitar y atornillar en el lado opuesto del compartimento del motor para operación a lado izquierdo. Las lijadoras neumáticas tienen una ventaja sobre las lijadoras eléctricas porque son más livianas en peso y más fáciles de maniobrar lo que produce generalmente un mejor producto final.

NOTA: Las lijadoras portátiles no están destinadas para su uso como sierras abrasivas portátiles de corte. El esfuerzo de torsión para el corte arruinará el delicado engranaje en la unidad de motor de la lijadora.

Varios discos abrasivos se utilizan en la operación de una lijadora eléctrica portátil. Estos discos consisten en diversos granos abrasivos que se han adherido o pegado sobre un disco de paño o de papel.

El material de apoyo que soporta el disco abrasivo se hace de un caucho o de una fibra vulcanizada resistente que puedan soportar un uso exigente y una flexión constante. Normalmente, el grano abrasivo usado en el disco es óxido de aluminio, y el agente adhesivo es pegamento o resina especial. Los discos abrasivos vienen en tipos de estructura abierta o cerrada, dependiendo del trabajo que se realizará.

Fig. 3 - Portable polishers - Pulidoras portátiles

El disco de estructura cerrada tiene los granos abrasivos adheridos en forma cercana entre sí, mientras que el disco de estructura abierta tiene los granos abrasivos con espaciado mayor entre sí. Los discos abrasivos de estructura abierta se utilizan para desbastar materiales suaves que podrían saturar posiblemente un disco de estructura cerrada, por ejemplo, lijado de madera, remoción de pintura y óxido, y plástico. Los discos abrasivos de estructura cerrada se utilizan para lijar metal, cerámica de acabado, y para alisar áreas granuladas más ásperas.

La mayoría de las lijadoras portátiles vienen con un manual de instrucciones y esos accesorios que el fabricante recomiende para su uso. Estos accesorios pueden incluir un equipo de lijado que incluya una placa de apoyo de goma flexible, varios tipos de discos abrasivos, y el conjunto de dispositivos para asegurar el disco al montaje de motor. Otros accesorios pueden incluir discos de pulido flexibles con carcasa protectora de rueda, cepillos de alambre, y vasos de amolar con la carcasa protectora apropiada. Utilice solamente los accesorios aprobados por el fabricante para evitar lesión o daño al equipo.

La pulidora portátil (figura 3) se utiliza para producir un final o un brillo destacado a la superficie del objeto. El pulido o lustre de una superficie es deseable ocasionalmente para aumentar la suavidad y hacer la superficie más fácil de limpiar. Al pulir una superficie, un objeto se puede también hacer más resistente al desgaste. Las pulidoras portátiles son generalmente más poderosas que las lijadoras portátiles puesto que encuentran una mayor resistencia friccional durante la operación, las pulidoras portátiles funcionan a velocidades más reducidas que las lijadoras portátiles para no estropear la superficie acabada.

Las pulidoras portátiles neumáticas son más ligeras en peso que los modelos eléctricos y pueden hacer menos marcas de pulido en el acabado. Para mejorar la calidad superficial de un objeto con el pulido, es necesario utilizar una caperuza suave o una cubierta sobre el plato de lijar o pulir. Los platos de pulido en piel con lana de cordero se recomiendan con una almohadilla de goma suave que separe el plato y el cojín del forro. El compuesto de pulido, que es un abrasivo suave, se utiliza para ayudar al pulimento la superficie. Una empuñadura lateral de izquierda o derecha se fija al compartimento del motor para ayudar a controlar la pulidora durante las operaciones.

OPERACIONES CON LA LIJADORA Y LA PULIDORA PORTÁTILES

El funcionamiento de la lijadora portátil es difícil debido a la fuerza giratoria del disco, así que la calidad del trabajo depende sobre todo de la experiencia del maquinista. Sostenga la lijadora portátil de modo que el disco abrasivo forme un ángulo de aproximadamente 15° a la superficie del objeto de trabajo (figura 4). Aplique sólo la presión necesaria contra la lijadora para doblar la almohadilla para lijar y el disco abrasivo de modo que aproximadamente 2 pulgadas del disco entren en contacto con la superficie. Mueva la lijadora de lado a lado, sobrepasando cada trayectoria con la siguiente. Si la lijadora corta irregularmente o es difícil de controlar, lo más probable es que esté en un ángulo menor que 15° con respecto al objeto. Si la lijadora hace desgastes sin precisión o deja bordes ásperos, el ángulo formado por la lijadora es probablemente demasiado grande. Cuando la lijadora está funcionando, hágala moverse hacia adelante y hacia atrás a través del objeto de trabajo o levántela libremente para evitar dañar la superficie.

La pulidora portátil es parecida a la lijadora portátil pero se construye con una velocidad más reducida y un alto esfuerzo de torsión necesarios para pulir. El pulido es llevado a cabo colocando el plato de pulido con piel de lana de cordero, moviéndolo hacia adelante y hacia atrás mientras que se mantiene una presión ligera en el objeto de trabajo. Evite presionar demasiado, o la superficie podría terminar dañada. Use caperuzas de pulido separadas para diferentes abrasivos, esmaltes, o ceras de pulido. Vuelva a aplicar el compuesto de pulido según lo necesitado guardar un final parejo.

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Chicago Pneumatic CP7202-D Kit Mini Disc Sander Kit

Chicago Pneumatic CP7202-D Kit Mini Disc Sander Kit

$140.60

Features and Benefits: Compact and lightweight for easy access in tight areas Rubber molded palm grip for added comfort Adjustable power regulator Two finger throttle for easier control and less fatigue Silenced handle exhaust directs air away from work areaKit includes: mini disc sander plus (1) 3" backing pad, (10) 3" 80, 100 and 120 grit sanding discs, (1) 3" fine, medium and coarse surface prep discs and spindle wrench packed in a heavy duty carrying case. Free speed: 15,000 rpm.; average air consumption: 21 cfm; air inlet thread: 1/4" NPTF; minimum hose size: 3/8" ; sound dBA: 85. Sander weighs only 1.5 lbs. [Read more]

Brand: Chicago Pneumatic

Hutchins 4500 Random Orbit Action Air Sander

Hutchins 4500 Random Orbit Action Air Sander

$265.16

Features and Benefits: Researched and developed for ultra-fine finishing. Custom handle option (handle not furnished with sander) guarantees proficient control at any angle. Flex-cover gives comfortable grip, prevents stiff fingers. Low profile, vibration-free motor insures full contact sanding. Unique air efficiency system. Positive-action drive supported by 4-special bearings generates more power on less air. Over-size drive head eliminates pad-wobble for full contact sanding. [Read more]

Brand: Hutchins

Prox-tech Inc - Proxxon 28583 5 Count 80 Grit Sander Belts

Prox-tech Inc - Proxxon 28583 5 Count 80 Grit Sander Belts

$21.16

Sander belts 80 grit 5 count Carded [Read more]

Brand: Proxxon

Prox-tech Inc - Proxxon 28594 12 Volt Pen Sander

Prox-tech Inc - Proxxon 28594 12 Volt Pen Sander

$51.84

Pen sander High speed For precise and detailed engraving Ideal for engraving in glass, metal, wood, and plastic Includes one 5/64" spherical shaped diamond head bit 12 volts [Read more]

Brand: Proxxon

3M 9211DC-NA Coarse Adhesive Backed Palm Sander Sheets

3M 9211DC-NA Coarse Adhesive Backed Palm Sander Sheets

$19.07

Palm sander sheets Adhesive-backed sheets held firmly in place over entire surface Simple to use Press-on, peel-off Coarse 4-1/2" x 4-1/2" Carded [Read more]

Brand: 3M

Dynabrade Products 21055 3/32-inch Dynorbital-Spirit Random Orbital Sander

Dynabrade Products 21055 3/32-inch Dynorbital-Spirit Random Orbital Sander

$213.13

Features and Benefits:0.25 Hp, 12,000 RPM, new ergo grip, rear exhaustApplications: sanding, color sanding, featheredging, scuffing, finishing & blendingMaterials: metals, aluminum, stainless steel, plastics, fiber clear coats & body fillersLess weight - only 1.4 lbs; lower profile - 3-1/2" highMade in USAReplaceable drop-in motorNew I.D. markings. Painter's tool; for ultra-fine sanding. Palm-style grip; color coded composite lever (identifies orbit size)Low sound levels; one-piece speed control dialCustom engineered composite cylinder; double row balancer bearing keeps out contaminantsCan be converted easily to self-generated or central vac model for hook-up to dust collection systemIncludes: low profile, premium urethane, weight-mated, non-vac pad (PN56107) [Read more]

Brand: Dynabrade Products

3M 9209DC-NA Fine Grit Adhesive Backed Palm Sander Sheet

3M 9209DC-NA Fine Grit Adhesive Backed Palm Sander Sheet

$6.52

Palm sander sheets Adhesive-backed sheets held firmly in place over entire surface Simple to use Press-on, peel-off Fine 4-1/2" x 4-1/2" Carded [Read more]

Brand: 3M

3M 9662ES 180-Grit SandBlaster Palm Sander Clip-On Sandpaper - 4-Pack

3M 9662ES 180-Grit SandBlaster Palm Sander Clip-On Sandpaper - 4-Pack

$18.83

Features: Designed specially for clip-on high speed 1/4 sheet power tool sanding Ideal for use on many surfaces including wood, metal, and fiberglass Specially developed for coarse sanding or stripping Heavy duty backing is coated with extremely durable Cubitron mineral, which outperforms conventional sandpaper because it stays sharp, resulting in a more consistent sanded surface and a longer sandpaper life Tear resistant, and the grit stays on the paper through many uses Will not discolor your sanding surface 4-1/2 inch x 5-1/2 inch sheets What's In The Box:3M 9662ES 180-Grit SandBlaster Palm Sander Clip-On Sandpaper - 4-Pack [Read more]

Brand: 3M

3M 9223NA Assorted Palm Sander Sandpaper Sheets Clip-On

3M 9223NA Assorted Palm Sander Sandpaper Sheets Clip-On

$18.30

Use for paint, wood, metal and plastic Three grades of paper are available for heavy to light sanding Fits 1/4 sheet palm sanders Three grades to cut quickly, smooth or complete sanding Long lasting Assortment includes two 60 grit, two 100 grit, and two 150 grit 4-1/2" x 5-1/2" 6 per card [Read more]

Brand: 3M

Hutchins 3500 6-inch Super III Lightweight Random Orbit Sander

Hutchins 3500 6-inch Super III Lightweight Random Orbit Sander

$250.71

Features and Benefits: The ultimate in multi-action sanders Lightweight eliminates fatigueLow profile guarantees operator control Air Consumption at 90 PSI: 11.0Speed: 10,000+RPMNoise emissions maximum at 90 lb. PSI: 80 DBA at 90 lb. PSI randum-orbit action: Low profile, lightweight, random-orbit sanderThe ultimate in multi-action sandersLightweight eliminates fatigueLow profile guarantees operator controlPrecision speed-control ensures versatile choices, from preliminary surface preparation to immaculate finishesPressure lock, change pads with thumb pressure, no tools neededHutchins meticulous construction standards ensures long-life productivity and lowest overall maintenance costs6" pad standard5" Pad available [Read more]

Brand: Hutchins

Ingersoll Rand 3128K Mini Random Orbital Sander Kit

Ingersoll Rand 3128K Mini Random Orbital Sander Kit

$212.02

Features and Benefits: Double bearing construction ensures smooth power delivery Durable composite housing resists chemicals and extreme temperatures Double-sided, adjustable speed regulator Pistol grip maximizes control and maneuverability Free speed: 15,000 RPM This random orbital sander provides power in tight spaces that most sanders can't reach. The 3128 features a contoured, variable speed trigger for maximum control on any sanding surface. Kit contains: (1) 3128 Mini Air Random Orbit Sander, (1) 3" Hook and Loop Backer Pad, (25) 3" Hook and Loop Discs (180 Grit), (25) 3" Hook and Loop Discs (220 Grit), (10) 3" Hook and Loop Discs (320 Grit), (10) 3" Hook and Loop Discs (800 Grit), and (1) toolbox tray. [Read more]

Brand: Ingersoll Rand

3M 9221NA Medium Palm Sander Sandpaper Sheets Clip-On

3M 9221NA Medium Palm Sander Sandpaper Sheets Clip-On

$18.30

Use for paint, wood, metal and plastic Three grades of paper are available for heavy to light sanding Fits 1/4 sheet palm sanders Three grades to cut quickly, smooth or complete sanding Long lasting Medium 100 grit 4-1/2" x 5-1/2" 6 per card [Read more]

Brand: 3M

3M 9220NA Fine Palm Sander Sandpaper Sheets Clip-On - 6-Pack

3M 9220NA Fine Palm Sander Sandpaper Sheets Clip-On - 6-Pack

$18.30

Use for paint, wood, metal and plastic Three grades of paper are available for heavy to light sanding Fits 1/4 sheet palm sanders Three grades to cut quickly, smooth or complete sanding Long lasting 150 grit Fine 4-1/2" x 5-1/2" 6 per card [Read more]

Brand: 3M

Hutchins 3800 Model 800 Orbital Sander

Hutchins 3800 Model 800 Orbital Sander

$291.54

Features and Benefits: Most versatile orbital sander ever madeAdapts to every surface preparation need with fatigue-free easy, heavy duty to feather finishing [Read more]

Brand: Hutchins

Ingersoll Rand 317A Heavy Duty Air High-Speed Sander with 5" Pad

Ingersoll Rand 317A Heavy Duty Air High-Speed Sander with 5" Pad

$86.75

Heavy Duty Air High-Speed Sander with 5" Pad [Read more]

Brand: Ingersoll Rand

3m 9650 3 inch X 9 inch 60 Grit SandBlaster Finishing Sander Clip-On Sandpaper

3m 9650 3 inch X 9 inch 60 Grit SandBlaster Finishing Sander Clip-On Sandpaper

$19.28

Designed especially for clip-on high speed 1/3 sheet power tool sanding Ideal for use on many surfaces including wood, metal, and fiberglass Especially developed for coarse sanding or stripping Heavy duty backing is coated with extremely durable Cubitron mineral, which outperforms conventional sandpaper because it stays sharp, resulting in a more consistent sanded surface and a longer sandpaper life Tear resistant, and the grit stays on the paper through many uses Will not discolor your sanding surface Coarse 60 grit 3-2/3 inch x 9 inch sheets 4 per card [Read more]

Brand: 3M

Speedway 9414 High Speed Sander

Speedway 9414 High Speed Sander

$36.52

Free Speed: 18,000RPM Free Speed: 18,000RPM Air hose: 3/8 inch 3 inch, 4-1/2 inch, 5 inch sander pads [Read more]

Brand: Speedway

3M 9222NA Clip-On Coarse Palm Sander Sandpaper Sheets, 4.5-in x 5.5-in - 6-Pack

3M 9222NA Clip-On Coarse Palm Sander Sandpaper Sheets, 4.5-in x 5.5-in - 6-Pack

$18.30

Features: Use for paint, wood, metal, and plastic Fits 1/4 sheet palm sanders Long lasting Coarse 60 grit 4-1/2-in. x 5-1/2-in.6 per card What's In The Box:3M 9222NA Clip-On Coarse Palm Sander Sandpaper Sheets, 4.5-in x 5.5-in - 6-Pack [Read more]

Brand: 3M

Dynabrade 21039 6 Dynorbital Spirit Random Orbital Sander 3/16 Orbit Cent. Vac M

Dynabrade 21039 6 Dynorbital Spirit Random Orbital Sander 3/16 Orbit Cent. Vac M

$200.09

Excellent sander hooks up to centeral vaccum system of shop vac. [Read more]

Brand: Dynabrade

3M 20327 Orbital Sander 6 In Self-Gen-V

3M 20327 Orbital Sander 6 In Self-Gen-V

$371.41

3M 20327 Orbital Sander 6 In Self-Gen-V [Read more]

Brand: 3M

3M 9113DC-NA Medium Finishing Sander Sheets Adhesive Back - 5-Pack

3M 9113DC-NA Medium Finishing Sander Sheets Adhesive Back - 5-Pack

$19.12

Sheets have a pressure sensitive backing which bonds each abrasive sheet securely to conventional vibration sanders This feature eliminates clipping the sheets into place and reduces tearing caused from loose vibration Medium 3-2/3" x 7-1/2" 5 per card [Read more]

Brand: 3M

Chicago Pneumatic CP7255 Random Orbital Sander 3/16in Orbit

Chicago Pneumatic CP7255 Random Orbital Sander 3/16in Orbit

$178.11

Features and Benefits Powerful .21 horsepower motor for tough jobs without stalling Unique tear drop handle for comfort and support Lightweight; weighing only 1.59 lbs. - the lightest in the industry 12,000 RPM - the fastest in the industry Less than 2.5 m/s2 of vibration - lowest vibration in the industryThis premium lightweight orbital sander is best for medium sanding. Features comfort contoured handle with great speed control. CP noise control muffler minimizes sound levels. Chemical and impact resistant composite housing and easy access speed control. Premium CP low vibration pad are available in PSA or Hook and Loop 6 hole; vacuum or non-hole vacuum. Pad size: 6" ; air consumption: 16 cfm; air inlet NPTF: 1/4" . [Read more]

Brand: Chicago Pneumatic

Ingersoll Rand 315 Heavy Duty Twin Piston Straight Line Air Sander

Ingersoll Rand 315 Heavy Duty Twin Piston Straight Line Air Sander

$131.02

Heavy Duty Twin Piston Straight Line Air Sander [Read more]

Brand: Ingersoll Rand

Hutchins 2001 High Torque Low-Speed Rotary Air Sander

Hutchins 2001 High Torque Low-Speed Rotary Air Sander

$347.31

Features and Benefits: Powered by geared 18,500 RPM Air-Efficient Motor with 18.1 gear reduction Low-speed torque uses "shaving action" to replace the tearing and gouging of high speed sanding Surface heat and panel warpage eliminated along with mid-sanding cycles necessary to remove damage inflicted in high speed abuse High-torque, low speed makes eliminator a superb polisher with use of polishing kit option for immediate conversion [Read more]

Brand: Hutchins

Ingersoll Rand 8202MAX 8200MAX Series Random Orbital Sander 3/16in orbit Diamete

Ingersoll Rand 8202MAX 8200MAX Series Random Orbital Sander 3/16in orbit Diamete

$201.54

Expanding the Ingersoll Rand MAX legacy, our vacuum-ready 8200MAX Series Random Orbital Sanders provides premium, high quality finishes due to its dust extraction capability for a contamination free work space environment. Delivering MAX Performance for a MAX Finish for all of your high-end body, prep, and finishing work. MAX Comfort: Low vibration and lightweight ergonomic design reduce operator fatigue MAX Power: Powerful 0.27 hp motor and variable-speed regulator deliver the performance required for ALL of your finishing jobs MAX Productivity: Reduced vibration and improved stability increase abrasive pad life and help create a smoother finish [Read more]

Brand: Ingersoll Rand

Sunex SX7235 HD 5in Reversible High Speed Sander

Sunex SX7235 HD 5in Reversible High Speed Sander

$120.48

Features and Benefits: High power 0.6hp motor Reversible direction control keeps sparks away from operator and helps to control the sanding in tight areas 16,000 rpm of speed to get the job done quickly 3", 4", and 5" backing pads to use with multiple applications Composite housing for lightweight durability The new Sunex HD ® 5" Reversible High-Speed Sander has all of the durability, features, and power that our customers have come to expect from the HD product line. This product sets itself apart by being the only composite High-Speed Sander available that gives you light weight comfort and durability, as well as the added feature of a reversible direction control. If you are in a tight spot or need to control sparks or debris, this tool is exactly what you need. For paint removal, weld smoothing, shaping filler patches, to rust removal, there is no equal in the market. All of this comes with our unmatched 2 year limited warranty. [Read more]

Brand: Sunex

C and I Collectables 1215BSANDST NFL Barry Sanders Detroit Lions Career Stat Pla

C and I Collectables 1215BSANDST NFL Barry Sanders Detroit Lions Career Stat Pla

$36.34

Drew Brees is celebrated on a 12" X 15" cherry wood plaque featuring a licensed 8X10 photo, one genuine licensed trading card of the player along with an engraved nameplate. Superior, high-clarity acrylic lens covers firmly affixed to the plaque with brass-type screws protect both the photo and trading card. The polished look?makes for a well-crafted, long-lasting piece?perfect for displaying in an office, recreation room, or any spot for a fan to enjoy. It is proudly produced and assembled in the USA. Licensed 8?x10? Barry Sanders Photo Engraved Nameplate with Career Achievements 12" X 15" cherry wood plaque Full lens covers to protect cards, pictures [Read more]

Brand: C & I Collectables

Ingersoll Rand 3128XP Mini Random Orbital Sander

Ingersoll Rand 3128XP Mini Random Orbital Sander

$132.85

Features and Benefits: High performance and convenience in the palm of your hand Engineered for the most aggressive sanding applications Delivers swirl-free finishes when feather edging, removing rust, preparing metal surfaces, or smoothing welds Durable ball-bearing construction ensures smooth power delivery Includes 3" hook and loop style backing pads [Read more]

Brand: Ingersoll Rand

C and I Collectables 1215BSANDERS NFL Barry Sanders Detroit Lions Player Plaque

C and I Collectables 1215BSANDERS NFL Barry Sanders Detroit Lions Player Plaque

$36.34

Brandon Marshall is celebrated on a 12" X 15" cherry wood plaque featuring a licensed 8X10 photo, one genuine licensed trading card of the player along with an engraved nameplate. Superior, high-clarity acrylic lens covers firmly affixed to the plaque with brass-type screws protect both the photo and trading card. The polished look?makes for a well-crafted, long-lasting piece?perfect for displaying in an office, recreation room, or any spot for a fan to enjoy. It is proudly produced and assembled in the USA. Licensed 8?x10? Barry Sanders Photo Officially Licensed Trading Card 12" X 15" cherry wood plaque Full lens covers to protect cards, pictures [Read more]

Brand: C & I Collectables

Ingersoll Rand 328B 8" Air Orbital Sander

Ingersoll Rand 328B 8" Air Orbital Sander

$150.25

8" Air Orbital Sander [Read more]

Brand: Ingersoll Rand

Sunex SX7131k Mini Random Orbital Sander

Sunex SX7131k Mini Random Orbital Sander

$126.94

Features and Benefits: 3" hook and loop sanding pad Two speed switch allows for speed control with hi and low speed and can be move to the other side of the tool for left hand operation Variable speed trigger for feather touch speed control throughout the range Composite housing for durability with light weight Comes in plastic molded tray Kit includes: (1) Random orbital sander, (1) 3" Hook and Loop Sanding pad, (10) 3" 180 grit disc, (10) 3" 220 grit disc, (10) 3" 320 grit disc, (10) 3" 800 grit disc Disc size 3" Rated Power 0.3 HP Free speed 15,000 RPM Overall length 5.70" Weight 1.34 lbs. Sound (dBA) 80 Vibration (m/s2) 5.4 [Read more]

Brand: Sunex

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Application examples in automotive buffing & polishing

Buffing and polishing using wheels and 'compounds' is somewhat like using wet and dry sanding paper, only much faster. Instead of using 'elbow grease' you will be using the power and speed of an electric motor.

The edge, or face of the wheel is the 'sanding block', which carries a thin layer of 'compound' which is the sandpaper. Varying types of wheel are available, and the different grades of compound are scaled similar to sandpaper. The compounds are made from a wax substance which has the different abrasive powders added to it. When this hard block is applied to the edge of a spinning buffing wheel, the heat from the friction melts the wax, and both wax and abrasive are applied in a thin slick to the face of the wheel.

The objective of buffing and polishing is to make a rough surface into a smooth one and, of course, each work piece will be in a different condition, so will need different procedures. Imagine the surface magnified thousands of times, it will look like jagged mountains and valleys. By repeated abrasion, you are going to wear down those mountains until they are old, soft, rolling hills! Then they will not dissipate the light, but reflect it. It is the reflection that makes the buffed part appear shiny.

Ejemplos de aplicación en pulido y lustrado del automotor.

El pulido y lustrado usando discos y “compuestos” es similar a usar papel de lija húmedo y seco, sólo que mas rápido. En lugar de usar engrasadora usted estará usando la potencia y velocidad de un motor eléctrico.

El borde, o la cara del disco es el “bloque de pulido”, que contiene una fina capa de “compuesto” que es el papel de lija. Varios tipos de discos están disponibles, y los diferentes grados de compuestos son clasificados en forma similar al papel de lija. Los compuestos son hechos de una substancia parafinosa que tiene los diferentes polvos abrasivos agregados a la misma. Cuando este duro bloque es aplicado al borde del disco giratorio de pulido, el calor de la fricción funde la cera, y así cera y abrasivo son aplicados en un forma de película lustrosa a la cara del disco.

El objetivo del pulido y el lustrado es convertir a una superficie áspera en una superficie lisa y,  por supuesto,  cada pieza de trabajo estará en una condición diferente, por lo tanto necesitará diferentes procedimientos. Imagínese la superficie ampliada miles de veces, la misma se verá como montañas irregulares y valles. Por la abrasión repetida, usted desgastará estas montañas ¡ hasta que se vuelvan praderas viejas, suaves y de fácil desplazamiento!. Entonces las mismas no disiparan la luz, sino que por el contrario la reflejaran. Es la reflexión lo que hace que una superficie pulida se vea brillante.

The Brightex wheel

Brightex wheels are constructed from a type of material, impregnated with a fine abrasive powder. The resulting combination being very flexible, yet very aggressive.

Brightex wheels remove rust, paint, scratches, minor blemishes and old paint.

A 'featherlite' touch is required with these wheels, unlike an ordinary buffing wheel. Heavy pressure will result in premature wear of the wheel.

The blisters found in chrome plate, particularly on pot metal, can be flattened with this wheel. Substrates take on a satin or flat finish, which should then be buffed with Emery and a Sisal wheel, followed by White or Tripoli on a cotton wheel.

El disco Brightex

Los discos Brightex son construidos de un tipo de material impregnado con un fino polvo abrasivo. La combinación resultante es muy flexible y agresiva.

Los discos Brightex quitan óxido, puntura, rayaduras, pequeñas manchas y pintura vieja.

Un toque liviano es requerido con estos discos, a diferencia de los discos ordinarios de pulido. Una presión excesiva resultará en un desgaste prematuro del disco.

Las burbujas encontradas en placas de cromo, particularmente sobre metal conformado, pueden ser aplanadas con estos discos. Los sustratos toman una terminación satinada o plana, que luego debe ser pulido con discos de esmeril o sisal, seguidas por Blanco o Tripoli sobre un disco de algodón. ( Información de productos Caswell).

The sisal buffing wheel

Sisal is a slender, hard, cellular strand of fiber that has demonstrated its great strength and tough resiliency in the form of binder twine, cord & rope for many years. These qualities, along with its natural abrading and grease absorbing characteristics, provide an ideal buffing wheel fabric.

Sisal buffing wheels will provide both polishing and cutting action. They will remove stretcher strains, orange peel, polishing wheel grit lines, light die marks, etc.

El disco de pulido de sisal

El sisal es un entramado de fibra esbelto, duro y celular que ha demostrado su fuerza y gran resistencia en la forma de hilo de engavillar , cuerda y soga por muchos años. Estas cualidades, así como su característica capacidad de desgaste y de absorción de grasas, proporcionan un tejido para disco de pulido ideal.

Los discos de pulido de sisal proporcionan una acción de lustre y corte. Los mismos removerán líneas de deformación por elongación local, capas de óxido, líneas de grava de disco de pulido, marcas ligeras de molde, etc.

The spiral sewn wheel

Spiral sewn wheels are the workhorse of most buffing and polishing jobs. Because the ply's of cotton cloth are sewn together spirally, the wheel becomes much harder and more pressure can be exerted on it. This is especially useful when 'cutting' the metal. The faces of these wheels are pre-raked to accept compound immediately.

These wheels are dependable and long wearing.

Discos cosidos en espiral

Los discos o ruedas cosidos en espiral son el caballo de batalla para la mayoría de las aplicaciones de pulido y lustrado. Debido a que los pliegues de tela de algodón están cosidos entre sí, el disco se vuelve mucho mas duro y mayor presión puede ser ejercida sobre el mismo. Esto es especialmente útil cuando se “corta” el metal. Las caras de estos discos son peinadas previamente para aceptar el compuesto inmediatamente.

Estos discos con confiables y de largo desgaste.

The loose cotton wheel

The main purpose of a loose cotton wheel is to polish and cut in a similar manner to the Spiral sewn wheel, except that this wheel, not being tightly stitched together, will 'mush' or collapse, allowing the cotton to get into awkward places more easily. If you have an object with fine details and awkward crevices, then this is the wheel to use.

El disco de algodón suelto

El propósito principal del disco de algodón suelto es lustrar y cortar de manera similar al disco de cosido en espiral, excepto que este disco, al no estar hilvanadas las capas entre sí en forma compacta, tomaran forma cónica al separarse, permitiendo al algodón alcanzar lugares poco accesibles mas fácilmente. Si usted tiene un objeto de finos detalles y hendeduras profundas, entonces este es el disco a ser usado.

The Canton flannel wheel.

Canton flannel is very soft, and this wheel is loosely stitched, so the layers of cloth flare out to give a wide angle ultra smooth polishing surface.

El disco de franela de algodón

El disco de franela de algodón es muy suave, y este disco es hilvanado en forma floja, de manera que las capas de tela sobresalgan hacia afuera para dar una superficie de lustrado de ángulo amplio y ultra lisa.

Abrasive nylon wheels

Strands of nylon impregnated with a tough aluminum oxide abrasive. Removes old paint, rust, weld scale and burns. Cleans and polishes. Is ideal for wood because it cleans without gouging. It never loses its abrasive power, or its shape. Safe on skin! Max 2500 rpm

Discos de nylon abrasivo

Consiste en hebras de nylon impregnadas con un fuerte abrasivo de óxido de aluminio. Remueve pintura vieja, óxido, virutas de soldadura y quemaduras. Limpia y lustra. Es ideal para la madera debido a que el mismo limpia sin ranurar. El disco nunca pierde su poder abrasivo, o su forma. Es seguro para la piel. Velocidad máxima 2500 rpm.

Flap wheels

These tightly packed and bonded sheets of resin bonded aluminum oxide are great for sanding , shaping and polishing all types of materials.

Especially good for removing paint and rust. Best used on an electric drill or the Flexible shaft.

Ruedas de aletas.

Estas hojas fuertemente empaquetadas y pegadas de oxido de aluminio adherido son buenas para desbaste, conformado y lustrado de todo tipo de materiales.

Especialmente buenas para remover pintura y óxido. Son mejor usadas en un taladro eléctrico y de vástago flexible.

Sanding drums

Sanding drums are self expanding rubber spindles with hardened metal arbors and nuts. Precision manufactured to close tolerance, providing smooth and even performance.

Use for: sanding, shaping, grinding, finishing, polishing Use on: wood, metal, plastic, fiberglass, rubber, glass or stone. Use with: portable drill or grinder, drill press, lather, flexible shaft, bench grinder. Especially useful for surfaces that are curved or irregularly shaped.

Tambores de lijado

Los tambores de lijar son husillos de goma con ejes de metal y tuercas. Fabricados con precisión para gran tolerancia, proporcionan un desempeño plano y parejo.

Usados para: lijado, conformado, desbaste, terminación y lustrado. Usados en: madera, metal, plástico, fibra de vidrio, goma, vidrio o piedra. Usados con: taladros portátiles o rectificadores, prensa de taladrar, torno, eje flexible, rectificador de banco. Especialmente útil para superficies que son curvas o de forma irregular.

Buffing machines examples : Ejemplos de máquinas de pulido:

This machine has the shaft extended out much further than one would normally find on a bench grinder. This extension allows large items to be buffed without knocking the motor housing.

The motor can be bench mounted or mounted to the optional stand, which MUST be bolted securely to the floor prior to operation.

Esta máquina tiene el eje extendido hacia afuera mas de lo que normalmente se encontraría en una amoladora de banco. Esta extensión permite que objetos mas largos sean pulidos sin golpear al gabinete del motor.

El motor puede ser montado sobre un banco o montado sobre un soporte opcional, que DEBE ser atornillado en forma segura al piso antes de la operación.

This sized 1/3rd HP  motor runs 4” and 6” wheels and is ideal for buffing and polishing smaller parts.

It can be bench or stand mounted.

Este equipo con motor de 1/3 de HP hace funcionar a discos de 4” y 6” y es ideal para pulir y lustrar partes mas pequeñas.

El mismo puede ser colocado sobre un banco o montado sobre soporte.

Keywords: lijadora, pulidora, tronzado, tronzar, discos de corte, mesa de tronzar, desbastado, discos de desbaste, vasos de amolar, lijado, discos de láminas fijas, cepillado, cepillos de copa, cepillos de disco, pulido, boina pulidora, disco de corte, abrasivos

 

 

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