Portable grinders. Purpose and types.
The portable grinder is a lightweight, hand-operated machine tool. It can be powered electrically or pneumatically, depending on the model selected. The portable grinder is used in the field or maintenance shop to grind excess metal from welds, remove rust, and for special finishing operations around the work area. Since this tool is hand operated, the quality of the work depends upon the ability and experience of the operator.
A small portable chuck type grinder may be known as a die grinder and is available with a number of accessories. These accessories include rotary files, small circular saws, wire brushes, assorted grinding wheels, and small sanding and polishing disks. These accessories are mounted to straight shank arbors which fit into the collect chuck of the grinder.
Special reduction collets are provided so that smaller diameter arbors or shanks can be mounted in the chuck. Operations performed with this portable grinder include shaping and smoothing intricate dies and castings, removing burrs from edges and surfaces, cleaning and repairing threaded parts, repairing keyways and splines, grinding bevels, countersinking holes and repairing scored and mutilated surfaces.
The portable grinder (wheel type) (Figure 2) can be electric or pneumatic and is designed for heavy-duty portable grinding operations. It is capable of mounting and rotating 6- inch-diameter grinding abrasive wheels and 6-inch-diameter wire brushes and polishing wheels. This grinder is used as a hand grinder for removing rust, corrosion, and sharp burrs from large workpieces (Figure 3).
Most portable grinders come with a grinder stand (Figure 4). Mounted on this stand, the grinder can be used to sharpen twist drills and cutter bits in the machine shop. Most grinders also come equipped with a wheel guard that should remain in place at all times to protect the operator from flying sparks and waste material. The portable grinder is designed so that the face of the grinding wheel is used; never use the side of the wheel or serious injury or damage could occur (Figure 5).
The angle grinder (disk type) (Figure 6) can be electric or pneumatic, and is designed for heavy duty grinding operations. The angle grinder consists of a depressed center abrasive grinding disk with wheel guard attached to the basic portable motor assembly (Figure 7). Care must be taken to check the wheel for cracks and to ensure that the wheel guard stays in place while operating.
Fig. 1- Portable electric grinder ( chuck type ) - Amoladora eléctrica portátil ( tipo mandril )
Fig. 2 - Portable grinders ( wheel type ) - Amoladoras portátiles ( tipo disco )
Fig. 3- Operation of portable pneumatic grinder - Operación de una amoladora neumática portátil
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Amoladoras portátiles. Propósitos y tipos .
La amoladora portátil es una máquina herramienta ligera y manual. Puede ser accionada eléctricamente o neumáticamente, dependiendo del modelo seleccionado. La amoladora portátil se utiliza en campo o en el taller de mantenimiento para amolar exceso de metal de soldaduras, quitar óxido, y para las operaciones de acabado especiales alrededor del área de trabajo. Puesto que esta herramienta es manual, la calidad del trabajo depende de la capacidad y de la experiencia del operador.
Un tipo portátil de amoladora pequeña de mandril puede ser conocida como rectificadora de matrices (también amoladora recta, amoladora de troqueles, amoladora de dados, etc ). y está disponible con un número de accesorios. Estos accesorios incluyen limas rotativas, pequeñas sierras circulares, cepillos de alambre, muelas abrasivas variadas, y pequeños discos de lijar y de pulir. Estos accesorios se montan en ejes de espigas rectas que caben en el mandril de la amoladora.
Se proporcionan pinzas portapiezas de reducción especiales para poder insertar ejes de espigas o vástagos de un diámetro más pequeños en el mandril. Las operaciones realizadas con esta amoladora portátil incluyen formar y alisar moldes y bastidores intrincados, remoción de rebabas de bordes y de superficies, la limpieza y reparación de piezas roscadas, reparación de chaveteras y acanaladuras, biseles amolados, avellanando de agujeros y reparación de superficies marcadas y mutiladas.
La amoladora portátil (tipo disco) (figura 2) puede ser eléctrica o neumática y se diseña para operaciones de pulido portátiles de gran potencia. Es capaz de insertar y de rotar discos abrasivos de 6 pulgadas de diámetro y discos de cepillado de alambre y discos de pulido de 6 pulgadas. Esta amoladora se utiliza en forma manual para quitar óxido, corrosión, y rebabas agudas de piezas de trabajo (figura 3).
La mayoría de las amoladoras portátiles vienen con un soporte de amoladora (figura 4). Montada en este soporte, la amoladora se puede utilizar para afilar brocas helicoidales y sacabocados en el taller de máquinas. La mayoría de las amoladoras también vienen equipadas con un protector de disco que debe permanecer en el lugar siempre para proteger al operador contra chispas voladoras y material de desecho. La amoladora portátil se diseña de manera de utilizar la cara del disco abrasivo; nunca utilice el filo del disco o podrían ocurrir serias lesiones o daños (cuadro 5).
La amoladora de ángulo (tipo disco) (figura 6 ) puede ser eléctrica o neumática, y se diseña para operaciones de pulido de gran potencia. La amoladora de ángulo consiste en un disco de pulido abrasivo de centro deprimido con el protector de disco fijado al montaje de motor portátil básico (figura 7). Se debe tener cuidado de comprobar el estado del disco para saber si hay grietas y para asegurarse de que el protector de disco permanece en el lugar mientras funciona.
Fig. 4 - Portable electric grinder ( wheel type ) with grinder stand - Amoladora eléctrica portátil ( tipo disco ) con soporte de amoladora.
Fig. 5- Correct and incorrect methods of using the portable grinder ( wheel type ) - Métodos correcto e incorrecto de uso de una amoladora portátil ( tipo disco )
Fig. 6- Angle grinders (disk type ) - Amoladoras angulares ( tipo disco ) |
Fig. 7- Configuration of an angle grinder (disk type ) - Configuración de una amoladora angular ( tipo disco )
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Wilton Square Wheel Belt Grinder, Model# 4103
$2,999.99
The Wilton multipurpose Square Wheel Belt Grinder provides fast, efficient grinding and finishing all in one machine: Flat and angular stock, shaping, roughing and contouring. U.S.A. Product image is representational only; stand shown is sold separately (Item# 144548) Application: Provides fast, efficient grinding and finishing all in one machine, Compatible With Item Number (s): 144549, Belt Size (in. x in.): 72 x 2, Belt Speed (ft./min.): 4, 600 SFPM, Motor Phase(s): 115/230V single-phase motor, Wheel Size (in.): 8, Wheel Included: Yes, Includes: 1 Grinder Flat & Angular Stock: Platen setting is the perfect angle for high speed, precision flat and level grinding Shaping: For grinding and refinishing cylindrical shapes The yoke surface conforms to the shape of the surface to produce an even, smooth finish Roughing: Serrated contact wheel for removing heavy stock, cleaning a weld or snagging casting Contouring: Grind difficult-to-reach areas with the 3in. x 2in. or 1 1/2in. x 2in. dia. contact wheels Puts a satin finish on steel, iron or aluminum and performs intricate contouring or internal finishing on uniquely shaped parts Contact wheel durometer: 70 Stand (Item# 144548) sold separately [Read more]
Store: Northern Tool and Equipment
Brand: Wilton
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- Wel-Bilt Angle Grinder - 4in.
$19.99
500 Watt motor 11, 000 RPM no-load Side handle Easy-adjust guard Includes grinding disc Wheel Diameter (in.): 4, Speed (RPM): 11, 000, Spindle Lock: Yes, Side Handle: Yes, Variable Speed: No, Wheel Included: Yes, Case Included: No 500 Watt motor 11, 000 RPM no-load Side handle Easy-adjust guard Includes grinding disc Not related to WELBILT products of Enodis companies [Read more]
Store: Northern Tool and Equipment
Brand: Northern Industrial Tools
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Ingersoll Rand Revolution Straight Die Grinder - 1/4In. Inlet, 15 CFM, 25, 000 RPM @ 90 PSI, Model# 325SC4
$229.99
The Revolution series offers the torque and muscle required for a wide range of applications. Its precision gearing and components contribute to a long and reliable life. Youll appreciate the comfort, performance and reliability. Air Consumption (CFM): 15, Speed (RPM): 25, 000, Air Inlet Size (in. NPT): 1/4, Min. Hose Size (in.): 5/16, Collet Size (in.): 1/4, Side Handle: No Straight 1/3 HP air motor Precision gearing and components Compact, contoured shape fits naturally in users hand Composite grip over polished aluminum housing reduces vibration and noise Integral trigger safety lock Wrap-around exhaust ports direct air away from work and operator [Read more]
Store: Northern Tool and Equipment
Brand: Ingersoll Rand
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Ingersoll Rand Revolution Straight Die Grinder - 1/4In. Inlet, 15 CFM, 35, 000 RPM @ 90 PSI, Model# 335SC4
$229.99
The Revolution series offers the torque and muscle required for a wide range of applications. Its precision gearing and components contribute to a long and reliable life. Youll appreciate the comfort, performance and reliability. Air Consumption (CFM): 15, Speed (RPM): 35, 000, Air Inlet Size (in. NPT): 1/4, Min. Hose Size (in.): 5/16, Collet Size (in.): 1/4, Side Handle: No Straight 1/3 HP air motor Precision gearing and components Compact, contoured shape fits naturally in users hand Composite grip over polished aluminum housing reduces vibration and noise Integral trigger safety lock Wrap-around exhaust ports direct air away from work and operator [Read more]
Store: Northern Tool and Equipment
Brand: Ingersoll Rand
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Ingersoll Rand Revolution Straight with 3in. Extension Die Grinder - 1/4In. Inlet, 15 CFM, 25, 000 RPM @ 90 PSI, Model# 330XC4
$329.99
The Revolution series offers the torque and muscle required for a wide range of applications. Its precision gearing and components contribute to a long and reliable life. You can depend on the performance and reliability. CFM at Load: 15, Speed (RPM): 25, 000, Air Inlet Size (in. NPT): 1/4, Min. Hose Size (in.): 5/16, Collet Size (in.): 1/4, Side Handle: No Straight with 3in. extension .3 HP air motor Precision gearing and components Compact, contoured shape fits naturally in users hand Composite grip over polished aluminum housing reduces vibration and noise Integral trigger safety lock Wrap-around exhaust ports direct air away from work and operator [Read more]
Store: Northern Tool and Equipment
Brand: Ingersoll Rand
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Northern Industrial Right Angle Air Grinder Kit - 1/4in. Inlet, 20, 000 RPM, 90 PSI
$79.99
Both cut-off tool and right angle die grinder have 20, 000 RPM free speed Includes 2 discs, 5 grinding stones, 5 buffers and 3 collet wrenches Cut-off tool requires 90 PSI @ 4 CFM; grinder 90 PSI @ 3 CFM 1/4in. NPT air inlet; storage case Disc Diameter (in.): 3, Air Consumption (CFM): 4, Speed (RPM): 20, 000, Air Inlet Size (in. NPT): 1/4, Min. Hose Size (in.): 3/8, Side Handle: No Includes 2 discs, 5 grinding stones, 5 buffers, 3 collet wrenches and storage case [Read more]
Store: Northern Tool and Equipment
Brand: Northern Industrial Tools
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Northern Industrial Air Die Grinder - 1/4in. Inlet, 3 CFM, 22, 000 RPM, 90 PSI
$39.99
Ideal for many automotive and industrial high-speed grinding applications. It can be used to clean dies, rotors, backing plates and brake pad mounts, or to grind valve seats, dress welds and enlarge holes. Features a spindle concentricity of less than .05mm, a power/speed regulator for easy RPM adjustment and a twin-bearing spindle to reduce vibration. Durable, lightweight composite housing design also helps reduce vibration. Can be used with 1/4in. grinding accessories. Disc Diameter (in.): 1/2, Air Consumption (CFM): 3, CFM at Load: 3, Speed (RPM): 22, 000, Air Inlet Size (in. NPT): 1/4, Min. Hose Size (in.): 3/8, Collet Size (in.): 1/4, Side Handle: No, Tool Length (in.): 7 Ergonomic cushion grip Adjustable rear exhaust Includes spanner wrenches [Read more]
Store: Northern Tool and Equipment
Brand: Northern Industrial Tools
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Northern Industrial Air Mini Die Grinder - 1/4in. Inlet, 4 CFM, 25, 000 RPM
$29.99
This 6in. air die grinder is ideal for light weld, grinder, porting and polishing applications. Features a spindle concentricity of less than .05mm, a power/speed regulator for easy RPM adjustment and a twin-bearing spindle to reduce vibration. Durable, lightweight composite housing design also helps reduce vibration. Disc Diameter (in.): 6, Air Consumption (CFM): 4, Speed (RPM): 25, 000, Air Inlet Size (in. NPT): 1/4, Min. Hose Size (in.): 3/8, Collet Size (in.): 1/4, Variable Speed: Yes, Side Handle: No Ergonomic cushion grip Adjustable rear exhaust Includes spanner wrenches [Read more]
Store: Northern Tool and Equipment
Brand: Northern Industrial Tools
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Northern Industrial Air Mini Angle Die Grinder - 1/4in. Inlet, 4 CFM, 20, 000 RPM
$49.99
This grinder allows easy handling in confined areas. Can use carbide burrs and other attachments for polishing, porting and removing light metal. Features a power/speed regulator for easy RPM adjustment and a twin-bearing spindle to reduce vibration. Durable, lightweight composite housing design also helps reduce vibration. Disc Diameter (in.): 2, Air Consumption (CFM): 4, Speed (RPM): 20, 000, Air Inlet Size (in. NPT): 1/4, Min. Hose Size (in.): 3/8, Collet Size (in.): 1/4, Variable Speed: Yes, Side Handle: No, Tool Length (in.): 6 Ergonomic cushion grip Adjustable rear exhaust Includes spanner wrenches [Read more]
Store: Northern Tool and Equipment
Brand: Northern Industrial Tools
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Northern Industrial Air Mini Angle Die Grinder Kit
$59.99
Mini angle die grinder (Item# 157792) One 2in. pad Five 2in. discs Two spanners Five each 1/4in and 1/8in. shank stones 1/8in. collet 1/4in. male coupler plug Blow-molded carry case [Read more]
Store: Northern Tool and Equipment
Brand: Northern Industrial Tools
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Ingersoll Rand Super-Duty Composite Die Grinder, 25, 000 RPM, 18 CFM, Model# 3108
$99.99
This Ingersoll Rand die grinder features a lightweight, durable composite body with superior ergonomics and comfort. This set is ideal for porting, weld braking, deburring and grinding applications. Air Consumption (CFM): 3, CFM at Load: 18, Speed (RPM): 25, 000, Air Inlet Size (in. NPT): 1/4, Min. Hose Size (in.): 3/8, Collet Size (in.): 1/4, Side Handle: No Powerful 1/3 HP motor Ball bearing construction Safety release throttle Includes wrenches [Read more]
Store: Northern Tool and Equipment
Brand: Ingersoll Rand
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Ingersoll Rand Air Mini Die Grinder - 1/4in. Inlet, 3 CFM, 27, 000 RPM, Model# 307A
$59.99
This Ingersoll Rand air mini die grinder is lightweight, compact and versatile. Air Consumption (CFM): 3, CFM at Load: 14, Speed (RPM): 27, 000, Air Inlet Size (in. NPT): 1/4, Min. Hose Size (in.): 3/8, Collet Size (in.): 1/4, Side Handle: No Economical standard-duty grinder Use for porting, weld breaking, deburring, polishing, grinding Superior maneuverability 1/4 HP Front exhaust keeps work surface clean Safety lever prevents accidental starts [Read more]
Store: Northern Tool and Equipment
Brand: Ingersoll Rand
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Ingersoll Rand 2in. Die Grinder Surface Prep Kit, Model# 02A-VAR-KIT
$19.99
Removes paint, rust and corrosion from metal, plastic, wood and other surfaces when used with a die grinder or drill. 1 each: disc holder shank, disc holder, red stripping disc, brown buffing disc and blue polishing disc Sanding discs include 1 each: #80 grit, #120 grit and #180 grit [Read more]
Store: Northern Tool and Equipment
Brand: Ingersoll Rand
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Ingersoll Rand Die Grinder Stones
$5.99
Assortment includes 5 frequently used grinding stones for die grinders. 1/4in. shank. [Read more]
Store: Northern Tool and Equipment
Brand: Ingersoll Rand
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Ingersoll Rand Air Die Grinder - 1/4in. Inlet, 3 CFM, Model# 308A
$89.99
This Ingersoll Rand air die grinder features a durable design that makes it a great choice for porting, light weld grinding and breaking sharp edges. Air Consumption (CFM): 3, CFM at Load: 20, Speed (RPM): 25, 000, Air Inlet Size (in. NPT): 1/4, Min. Hose Size (in.): 3/8, Collet Size (in.): 1/4, Side Handle: No 1/2 HP Ball bearing construction for longer life Self-locking throttle [Read more]
Store: Northern Tool and Equipment
Brand: Ingersoll Rand
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Ingersoll Rand Air Right Angle Die Grinder - 1/4in Inlet, 3 CFM, 20, 000 RPM At 90 PSI, Model# 301
$69.99
This Ingersoll Rand air right angle die grinder provides an excellent solution in tight spaces. It is an ideal choice for grinding, edge-breaking, deburring, porting and polishing applications. Air Consumption (CFM): 3, CFM at Load: 14, Speed (RPM): 20, 000, Air Inlet Size (in. NPT): 1/4, Min. Hose Size (in.): 3/8, Collet Size (in.): 1/4, Side Handle: No 1/4 HP Standard duty Self locking throttle prevents accidental starts Ball bearing construction [Read more]
Store: Northern Tool and Equipment
Brand: Ingersoll Rand
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Ingersoll-Rand Air Angle Die Grinder - 1/4in Inlet, 20, 000 RPM, 90 PSI, Model# 301-3MK
$119.99
Disc Diameter (in.): 3, Speed (RPM): 20, 000, Air Inlet Size (in. NPT): 1/4, Min. Hose Size (in.): 1/4, Collet Size (in.): 1/4, Side Handle: No, Tool Length (in.): 5 Safety trigger [Read more]
Store: Northern Tool and Equipment
Brand: Ingersoll Rand
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- Makita Angle Grinder - 4.5in. 10, 000 RPM, 6.4 Amp, Model# 9557PB
$99.99
Wheel Diameter (in.): 4 1/2, Amps: 6.4, Speed (RPM): 10, 000, Switch Type: Paddle switch, Spindle Thread Size: 5/8in. x 11, Side Handle: Yes, Variable Speed: No, Wheel Included: Yes, Wrench Included: Yes, Case Included: No Wire cup brush 3 1/2in. Sanding disc 4 1/2in. Extra-large paddle switch for easy operation right or left handed 115 Volts Small-circumference barrel grip Labyrinth construction seals motor and bearings from contamination [Read more]
Store: Northern Tool and Equipment
Brand: Makita
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- Makita Angle Grinder - 7in. Dia, 6000 RPM, 15 Amp, Model# GA7001L
$219.99
Wheel Diameter (in.): 7, Amps: 15, Speed (RPM): 6, 000, Spindle Thread Size: 5/8, Spindle Lock: Yes, Side Handle: Yes, Variable Speed: No, Wheel Included: Yes, Case Included: No AC/DC switch for use with alternative power source All ball-and-needle bearings for long life [Read more]
Store: Northern Tool and Equipment
Brand: Makita
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- Makita Angle Grinder - 5in. 11, 000 RPM, 10.5 Amp, Model# GA5020
$157.99
This grinder sports the Super Joint System to prevent kickback and gear damage from accidental wheel binding. Grinder head rotates 90 left or right for your convenience. Wheel Diameter (in.): 5, Amps: 10.5, Speed (RPM): 11, 000, Switch Type: Trigger with lock-on switch, Spindle Lock: Yes, Side Handle: Yes, Variable Speed: No, Wheel Included: Yes, Wrench Included: Yes, Case Included: No Electric brake Can run on both AC and DC power Dustproof ball bearing construction Externally accessible brushes Spiral gears for efficiency Max Wheel Size: Grinding Wheel 5in. Wire Cup Brush 3-1/2in. Sanding Disc 5in. [Read more]
Store: Northern Tool and Equipment
Brand: Makita
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- Makita Angle Grinder - 7in. 6600 RPM, 15 Amp, Model# 9067L
$189.99
This 15 Amp grinder delivers high power and performance. Spins at 6600 RPM for fast stock removal. The large trigger with lock-on reduces operator fatigue during long grinding jobs. Switch handle can rotate 90 left or right for even more comfort. Wheel Diameter (in.): 7, Amps: 15, Speed (RPM): 6, 600, Switch Type: Trigger with lock-on switch, Spindle Thread Size: 5/8in. x 11, Spindle Lock: Yes, Side Handle: Yes, Variable Speed: No, Wheel Included: Yes, Wrench Included: Yes, Case Included: No Ball bearing and labyrinth construction for long tool life Automatic brush cut-out system Double insulated Max Wheel/Disc Size: Wire cup brush 6in. Sanding disc 7in. Model 9015A [Read more]
Store: Northern Tool and Equipment
Brand: Makita
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- Makita Angle Grinder - 9in. 6600 RPM, 15 Amp, Model# 9069
$182.99
This beefy grinder boasts a 15 Amp motor for impressive power and performance. Spins at 6600 RPM for fast stock removal. Switch handle can be rotated 90 left or right for operator comfort. Wheel Diameter (in.): 9, Amps: 15, Speed (RPM): 6, 600, Switch Type: Trigger with lock-on switch, Spindle Thread Size: 5/8in. x 11, Side Handle: Yes, Variable Speed: No, Wheel Included: Yes, Wrench Included: Yes, Case Included: No Ball bearing and labyrinth construction for long tool life Automatic brush cut-out system Double insulated Max Wheel/Disc Size: Wire cup brush 6in. Sanding disc 7in. Model 9069 [Read more]
Store: Northern Tool and Equipment
Brand: Makita
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- Makita Angle Grinder - 5in. 10000 RPM, 6.4 Amp, Model# 9528PB
$114.99
This angle grinder features labyrinth construction to seal the motor and bearings from debris contamination. Lightweight and easy to handle with an extra-large paddle switch for operating right or left handed. Wheel Diameter (in.): 5, Amps: 6.4, Speed (RPM): 10, 000, Switch Type: Paddle switch with lock-on button, Spindle Thread Size: 5/8in. x 11, Spindle Lock: Yes, Side Handle: Yes, Variable Speed: No, Wheel Included: Yes, (1) 5in. cut-off wheel, Wrench Included: Yes, Case Included: No Double insulated High power-to-weight ratio Spiral gears for efficient power transmission Max Wheel/Disc Size: Wire cup brush 3 1/2in. Sanding disc 5in. Model 9528PB [Read more]
Store: Northern Tool and Equipment
Brand: Makita
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Wilton Stand for Square Wheel Grinder, Item# 144549, Model# 4808
$499.99
Application: Stand for Square Wheel Grinder, Compatible With Item Number (s): 144549, Includes: 1 Grinder Stand [Read more]
Store: Northern Tool and Equipment
Brand: Wilton
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- Makita Angle Grinder - 6in. 9000 RPM, 12 Amp, Model# 9566CV
$189.99
Makitas exclusive Super Joint System feature prevents tool kickback and gear damage caused by accidental wheel binding. An improved 12 Amp motor design increases output power in a more compact tool. Electronic limiter stops the motor and prevents accidental motor overload and burnout, while larger and improved carbon brush material extends tool life. Labyrinth construction seals the motor and bearings, protecting them from debris by creating a complex set of channels. Protective zig-zag varnish seals armature and field from contaminants and reduces heat. Wheel Diameter (in.): 6, Amps: 12, Speed (RPM): 4, 000 - 9, 000, Switch Type: Paddle switch, Spindle Thread Size: 5/8in. x 11, Side Handle: Yes, Variable Speed: Yes Tool-less wheel guard adjustment for easy clamping 5-stage variable speed control dial for matching the RPM to the application Larger and improved carbon brush material for longer tool life Max Wheel/Disc Size: Cut-Off Wheel 6in. Wire Cup Brush 3in. Sanding Disc 6in. Model 9566CV [Read more]
Store: Northern Tool and Equipment
Brand: Makita
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- Makita Die Grinder - 28, 000 RPM, 6.6 Amp, Model# GD0800C
$249.99
This 1/4in. variable-speed die grinder with 6.6 Amp motor features electronic speed control for constant speeds under load. Super Joint system protects gears by absorbing shock from accidental wheel lock. Amps: 6.6, Speed (RPM): 28, 000, Switch Type: Paddle switch, Spindle Thread Size: 1/8in. - 1/4in. collet, Side Handle: Yes, Variable Speed: Yes, Wheel Included: No, Wrench Included: Yes, Case Included: No Slender double-neck die cast aluminum gear housing Labyrinth construction protects bearings and motor from dust Super Joint System absorbs shocks from accidental wheel lock, protecting gear, collet and coupling Double insulated Model GD0800C [Read more]
Store: Northern Tool and Equipment
Brand: Makita
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Operations with portable grinders.
Before operating any portable grinder, check the grinding wheel for cracks and check that the arbor hole is the proper size for the grinder to be used. When operating these grinders, keep a light pressure on the work to avoid damaging the wheel or overheating the workpiece.
Both the small and the larger portable grinders operate at a high speed, so avoid letting the wheel rest on one spot for too long. This could cause the work to burn or the wheel to crack and explode. Always check the manufacturer’s instruction manual before operation to ensure the grinding wheel’s maximum rated speed is rated higher than the maximum speed of the grinder.
When grinding, buffing, or polishing with any portable grinder, always keep a firm grip on the tool to avoid injury or damage to equipment.
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Operaciones con amoladoras portátiles.
Antes de hacer funcionar cualquier amoladora portátil, compruebe el estado del disco abrasivo para saber si hay grietas y compruebe que el agujero de las pinzas portapiezas o agujero del eje es del tamaño apropiado para que la amoladora sea utilizada. Al hacer funcionar estas amoladoras, mantenga una presión ligera sobre el objeto de trabajo para evitar dañar el disco o recalentar dicho objeto.
Tanto las amoladoras portátiles pequeñas y como las más grandes funcionan a alta velocidad, así que evite dejar la rueda apoyarse sobre un punto durante demasiado tiempo. Esto podría hacer que el objeto de trabajo se queme o que el disco se agriete y estalle. Compruebe siempre el manual de instrucciones del fabricante antes de que la operación, para asegurarse que la velocidad máxima permitida del disco abrasivo se encuentre por encima que la velocidad máxima de la amoladora.
Cuando realice el amolado, lustre, o pulido con cualquier amoladora portátil, mantenga siempre una presión firme en la herramienta para evitar cualquier lesión o daño al equipo. |
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