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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- Clarke Angle Grinder - 15 Amp, 7in./9in. Disc, Model# MT1209B
$79.99
Choose this Clarke Angle Grinder for its high-powered 15 Amp motor. Wheel Diameter (in.): 7 or 9, Amps: 15, Speed (RPM): 6, 500, Switch Type: Spindle, Spindle Lock: Yes 3 HP, 2200 Watt motor 6500 RPM 7/8in. arbor complete with 7in. and 9in. grinding discs Spindle lock for easy disc changing Side handle fits left and right or top Safety on/off switch [Read more]
Store: Northern Tool and Equipment
Brand: Clarke
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Northern Industrial Tools Air Die Grinder Cutoff Tool Kit - 22-Pc.
$19.99
This air die grinder/cutoff tool kit includes everything you need to do the job well. 1/4in. air die grinder Two 3in. cutting wheels Five 1/8in. mounted grinding stones Five 1/4in. mounted grinding stones Safe guard Cutting wheel shank 2 collet hand wrench 5mm hand wrench Nipple 1/8in. & 1/4in. collets Mounted stone holder Blow-mold case [Read more]
Store: Northern Tool and Equipment
Brand: Northern Industrial Tools
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- Chicago Pneumatic Air Angle Grinder/Cutoff Kit - 2in., 20, 000 RPM, Model# CP7500DK
$154.99
The Chicago Pneumatic 2in. mini angle grinder with cutoff tool adapter is compact and lightweight for easy access in tight areas. Great for working in confined areas on jobs that require fast metal removal. Ideal for body shop, automobile and truck repair. Kit includes grinding wheels, cutoff wheels, goggles, wrenches and carry case. Wheel Diameter (in.): 2, Speed (RPM): 20, 000, Wheel Included: Yes, Wrench Included: Yes, Case Included: Yes Rubber handle grip for extra comfort Self-locking throttle prevents accidental start-ups Full 180 protective guard Side exhaust directs air away from work area Kit includes 3 each of 60, 80 and 120 grit 2in. grinding wheels, five 2in. cutoff wheels, safety goggles, spanner wrench, pin wrench and carrying case [Read more]
Store: Northern Tool and Equipment
Brand: Chicago Pneumatic
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- Milwaukee 7in. or 9in. Grinder - 15 Amp, Model# 6088-30
$129.00
Milwaukees 7in./9in. 15.0 Amp large angle grinder w/lock-on delivers performance and durability for the most difficult grinding jobs. Wheel Diameter (in.): 7 or 9, Amps: 15, Speed (RPM): 6, 000, HP: 4.2, Switch Type: Trigger (with Lock-On), Spindle Thread Size: 5/8 in. - 11, Spindle Lock: Yes, Side Handle: Yes, Cord Length (ft.): 8, Wrench Included: Yes Angled grips for superior ergonomics Debris baffles protect internal components [Read more]
Store: Northern Tool and Equipment
Brand: Milwaukee
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- JET Industrial Bench Grinder - 6in., Model# JBG-6A
$129.99
If you have things that need cleaning, sharpening, buffing, removing rust, or removing burs from metal, then you need this JET 6in. Industrial Bench Grinder. Features heavy-duty construction with powerful, long-life motor for use all day, every day. It comes standard with fine and coarse vitrified grinding wheels, cast iron wheel guards and dust vents, and more. Item is on backorder until September 13th. Wheel Diameter (in.): 6, Speed (RPM): 3, 450, HP: 1/2, Wheel Included: Yes, 2, Dimensions L x W x H (in.): 18 x 8 1/2 x 10 1/2 1/2 HP, 115V motor 6in. x 3/4in., 36/60-grit wheels Totally enclosed, pre-lubricated ball bearings 1/2in. shaft diameter 1-pc. quick adjusting spark guards Adjustable tool rests Cast iron wheel guards and dust vents Large eye shields with quick adjustment Rubber mounts prevent movement UL listed [Read more]
Store: Northern Tool and Equipment
Brand: Jet
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Northern Industrial Replacement Wheel for Grinder Item# 143378 - Rubber Wheel
$2.49
4 1/2in. diameter rubber wheel with 7/8in. arbor for use with Northern Industrial grinder #143378. Wheel Diameter (in.): 4 1/2 [Read more]
Store: Northern Tool and Equipment
Brand: Northern Industrial Tools
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Northern Industrial Replacement Wheel for Grinder Item# 143378 - Wire Wheel
$2.99
4 1/2in. diameter wire wheel with 5/8in. arbor for use with Northern Industrial grinder #143378. Wheel Diameter (in.): 4 1/2 [Read more]
Store: Northern Tool and Equipment
Brand: Northern Industrial Tools
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Northern Industrial Replacement Wheels and Discs for Grinder Item# 143378
$2.99
4 1/2in. diameter wheels with 7/8in. arbor for use with Northern Industrial grinder #143378. Wheel Diameter (in.): 4 1/2 2 wheels: one for cutting (4 1/2in. x 7/8in. x 15/64in) and one for grinding (4 1/2in. x 7/8in. x 1/8in) 5 sanding discs: 40 grit, 60 grit, 80 grit, (2) 100 grit [Read more]
Store: Northern Tool and Equipment
Brand: Northern Industrial Tools
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- Makita Angle Grinder - 4in., Model# GA4030K
$59.99
Makitas GA4030K Angle Grinder features a powerful 6.0 Amp motor that delivers 11, 000 RPM for the most demanding applications. A small circumference barrel grip (only 2 1/4in.) and refined overall design and tool weight (3.1 lbs.) increases both comfort and control. Machined bevel gears provide at least 2X longer service life than competitive models. Ideal for welders, fabricators, masons, maintenance/repair and more. Wheel Diameter (in.): 4, Amps: 6, Speed (RPM): 11, 000, Switch Type: Slide, Spindle Thread Size: M10 x 1.25, Spindle Lock: Yes, Side Handle: Yes, Variable Speed: No, Wheel Included: Yes, Wrench Included: Yes, Case Included: Yes Labyrinth construction seals and protects the motor and bearings from dust and debris Rotatable gear housing can be positioned every 90 for cutting applications Externally accessible brushes Protective zig-zag varnish seals the motor from contaminants and reduces heat All ball bearing design and metal gear housing for added durability [Read more]
Store: Northern Tool and Equipment
Brand: Makita
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- JET Industrial Bench Grinder - 10in., Model# JBG-10A
$369.99
If you have things that need cleaning, sharpening, buffing, removing rust, or removing burs from metal, then you need this JET 10in. Industrial Bench Grinder. Features heavy-duty construction with powerful, long-life motor for use all day, every day. It comes standard with fine and coarse vitrified grinding wheels, cast iron wheel guards and dust vents, and more. Item is on backorder until September 2nd. Wheel Diameter (in.): 10, Speed (RPM): 1, 725, HP: 1 1/2, Switch Type: Toggle, Wheel Included: Yes, Dimensions L x W x H (in.): 25 x 13 x 13 1 1/2 HP, 115V motor Totally enclosed, pre-lubricated ball bearings 1in. shaft diameter Heavy-duty guarded toggle switch 1-pc. quick adjusting spark guards Adjustable tool rests Cast iron wheel guards and dust vents Large eye shields with quick adjustment Rubber mounts prevent movement UL listed [Read more]
Store: Northern Tool and Equipment
Brand: Jet
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JET Grinder Pedestal Stand - 31in.H, Model# JPS-2A
$79.99
Heavy-duty cast iron construction provides strength and durability while supporting your grinder on the 11in. x 10in. mounting surface. Height (in.): 31, Wrench Included: No, Case Included: No Variable hole pattern accommodates different-sized grinders Coolant reservoir and tool tray adjust up or down on column for easy access Wide-stance base gives you a stable grinder workstation [Read more]
Store: Northern Tool and Equipment
Brand: Jet
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Sunex Tools Angle Grinder with Ergo Grip - 2in. Disc, Model# SXC606
$49.00
Comfort and performance coexist in Sunex Tools line of super-duty air tools, delivering the quality you want with the comfort grip that helps you work as long and hard as your air tool. Disc Diameter (in.): 2, Air Consumption (CFM): 3, CFM at Load: 3, Speed (RPM): 15, 000, Air Inlet Size (in. NPT): 1/4, Min. Hose Size (in.): 3/8, Variable Speed: Yes, Side Handle: No, Tool Weight (lbs.): 1.6, Tool Length (in.): 7.4 Durable comfort grip reduces vibration 90 angle head reaches restricted areas Built-in speed regulator adds versatility and control Locking throttle lever for safety 360 adjustable rear exhaust directs air away from work [Read more]
Store: Northern Tool and Equipment
Brand: Sunex Tools
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JET Square Wheel Belt Grinder - 2in. x 72in., Model# J-4103
$2,499.99
The JET J-4103 Square Wheel Belt grinder offers fast, efficient grinding and finishing all in one machine. Serrated contact wheel removes heavy stock, cleans up a weld or snags a casting. The J-4103 grinds and refinishes cylindrical shapes and puts a satin finish on steel, iron or aluminum, and grind difficult to reach areas with the 3in. x 2in. or 1 1/2in. x 2in. diameter contact wheels. Application: Metal grinding, Material Type: Metal, Belt Size (in. x in.): 2 x 72, Belt Speed (ft./min.): 4, 600, Motor Phase(s): 1, Wheel Size (in.): 8, Wheel Included: Yes, Dimensions L x W x H (in.): 20 x 18 x 20, Includes: Belt 1 HP, 115/230V motor Performs intricate contouring or internal finishing on uniquely shaped parts Platen setting is the perfect angle for high speed, precision flat and level grinding [Read more]
Store: Northern Tool and Equipment
Brand: Jet
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Klutch Air Micro Grinder
$69.99
The Klutch Air Micro Grinders pencil-shaped design is ideal for precision detailing, fine grinding, accurate carving and more. Air Consumption (CFM): 1.12, CFM at Load: 1.15, Speed (RPM): 55, 000, Air Inlet Size (in. NPT): 1/4, Min. Hose Size (in.): 1/4, Collet Size (in.): 1/8, Variable Speed: No, Tool Weight (lbs.): 1/2, Tool Length (in.): 7.7 [Read more]
Store: Northern Tool and Equipment
Brand: Klutch
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Universal Cutter/Grinder
$599.99
The Universal Cutter/Grinder is a dual-purpose power unit for sharpening or grinding high speed steel and carbide cutting tools. Sharpens single- or multiple-lip cutters of various shapes. Index head adjusts to 24 different positions to obtain almost any angle or shape. Wheel Diameter (in.): 4, Amps: 1.6, Speed (RPM): 5, 200 (Wheel); 2, 800 (Motor), HP: 1/3, Switch Type: Band switch, Cord Length (ft.): 6, Wheel Included: Yes, Wrench Included: Yes, Dimensions L x W x H (in.): 22 x 18 x 17 [Read more]
Store: Northern Tool and Equipment
Brand: Northern Tool and Equipment
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- DEWALT Grinder - 4 1/2in./5in., 13 Amp, Model# D28114N
$149.99
This DEWALT 4 1/2in./5in. high-performance grinder boasts a 2.3 HP motor that spins at 11, 000 RPM for fast removal of material. No-Lock-On paddle switch prevents the user from locking the grinder on. Dual Clutch Protection and E-Clutch protect gears and motor during wheel pinch/stall. Wheel Diameter (in.): 4 1/2 or 5, Amps: 13, Speed (RPM): 11, 000, HP: 2.3, Switch Type: Paddle (w/o Lock-On), Spindle Thread Size: 5/8 in - 11, Spindle Lock: Yes, Side Handle: Yes, Variable Speed: No, Wheel Included: Yes, Wrench Included: Yes, Case Included: No 13.0 Amp / 2.3HP, 11, 000 RPM AC motor No-Lock On paddle switch prevents the user from locking the grinder on Dual Clutch Protection prevents the gears from stripping and motor from burning up in a wheel pinch/stall Dust Ejection System provides increased durability by ejecting damaging dust and debris particles that enter the tool through the air intake vents Quick-change wheel release provides tool free wheel removal Dual Abrasion Protection provides increased motor protection from damaging dust and debris ingestion E-Clutch shuts the grinder off when a wheel pinch or wheel stall occurs, extending the life of the gears and motor Power-Off Overload Protection shuts the tool off before it reaches overload Vibration reducing 2-position side handle provides user comfort and reduces vibration Jam-pot, low profile gear case provides precise gear alignment for a smoother, quieter transmission while allowing access to tight spaces Auto-off brushes shut the tool down when the brushes need replacing to avoid tool damage Keyless adjustable guard provides tool free guard adjustments Includes grinding wheel, guard and wrench [Read more]
Store: Northern Tool and Equipment
Brand: Dewalt
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- DEWALT High-Performance Cutoff/Grinder with Slide Switch - 4 1/2in.-5in., 11, 000 No-Load RPM, Model# D28114
$139.99
Wheel Diameter (in.): 4 1/2 - 5, Amps: 13, Speed (RPM): 11, 000, HP: 2.3, Switch Type: Paddle with lock on, Spindle Lock: Included, Side Handle: Included, Wheel Included: Yes, Wrench Included: Yes, Case Included: No Dust Ejection System provides increased durability by ejecting damaging dust and debris particles that enter the tool through the air intake vents Quick-change wheel release provides tool free wheel removal Complete Electronic Control provides multiple advanced technology features such as E-Clutch , Power-Off and Power Loss Reset Dual abrasion protection provides increased motor protection from damaging dust and debris ingestion One piece brush arm prevents brush hang-up due to dust ingestion E-Clutch shuts the grinder off when a wheel pinch or wheel stall occurs, extending the life of the gears and motor Power-Off overload protection shuts the tool off before it reaches overload or burn-up Power-Loss Reset prevents accidental re-starts following a power disruption when the tool is left in the on position Vibration reducing two position side handle provides user comfort and reduces user felt vibration Jam-pot, low profile gear case provides precise gear alignment for a smoother, quieter transmission while allowing access to tight spaces Auto-off brushes shut the tool down when the brushes need replacing to avoid tool damage Keyless adjustable guard provides tool free guard adjustments increasing productivity Spindle lock [Read more]
Store: Northern Tool and Equipment
Brand: Dewalt
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- DEWALT High-Performance Cutoff/Grinder with Slide Switch - 6in., 9000 No-Load RPM, Model# D28140
$169.99
Wheel Diameter (in.): 6, Amps: 13, Speed (RPM): 9, 000, HP: 2.3, Switch Type: Slide, Spindle Lock: Yes, Side Handle: Yes, Wheel Included: Yes, Wrench Included: Yes 6in. cutoff/grinder with slide switch 9000 no-load RPM 13.0 Amp/2.3 HP DEWALT built G55 (AC) motor designed for faster material removal and higher overload protection Dual Clutch Protection prevents the gears from stripping and motor from burning up in a wheel pinch/stall increasing durability Dust Ejection System provides increased durability by ejecting damaging dust and debris particles that enter the tool through the air intake vents Quick-change wheel release provides tool free wheel removal Dual Abrasion Protection provides increased motor protection from damaging dust and debris ingestion One piece brush arm prevents brush hang-up due to dust ingestion Complete Electronic Control provides multiple advanced technology features such as E-Clutch , Power-Off and Power-Loss Reset E-Clutch shuts the grinder off when a wheel pinch or wheel stall occurs, extending the life of the gears and motor Power-Off Overload Protection shuts the tool off before it reaches overload or burn-up Power-Loss Reset prevents accidental re-starts following a power disruption when the tool is left in the on position Vibration reducing 2-position side handle provides user comfort and reduces user felt vibration am-pot, low profile gear case provides precise gear alignment for a smoother, quieter transmission while allowing access to tight spaces Auto-off brushes shut the tool down when the brushes need replacing to avoid tool damage Keyless adjustable guard provides tool free guard adjustments increasing productivity Lock-on slide switch provides increased user comfort in extended use applications Spindle lock Includes Type 27 depressed center wheel, Type 1 cutting wheel, wrench [Read more]
Store: Northern Tool and Equipment
Brand: Dewalt
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- DEWALT 8in. 3/4 HP Heavy Duty Bench Grinder, Model# DW758
$129.99
Item is currently on backorder with the manufacturer. Wheel Diameter (in.): 8, Amps: 4.2, Speed (RPM): 3, 600, HP: 3/4, Spindle Thread Size: 5/8, Variable Speed: No, Wheel Included: Yes, 36 & 60 Grit, Case Included: No Tool rest is precision-machined aluminum Rugged cast iron base and loader housing [Read more]
Store: Northern Tool and Equipment
Brand: Dewalt
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- DEWALT Cutoff/Grinder - 6in., 13 Amp, Model# D28144N
$179.99
This DEWALT 6in. high-performance cutoff/grinder boasts a 2.3 HP motor that spins at 9000 RPM for fast removal of material. No-Lock-On paddle switch prevents the user from locking the grinder on. Dual Clutch Protection and E-Clutch protect gears and motor during wheel pinch/stall. Wheel Diameter (in.): 6, Amps: 13, Speed (RPM): 9, 000, HP: 2.3, Switch Type: No-Lock-On paddle, Spindle Thread Size: 5/8 - 11, Spindle Lock: Yes, Side Handle: Yes, Variable Speed: No, Wheel Included: Yes, (2), Wrench Included: Yes, Case Included: No 13.0 Amp / 2.3HP, 9000 RPM AC motor No-Lock On paddle switch prevents the user from locking the grinder on Dual Clutch Protection prevents the gears from stripping and motor from burning up in a wheel pinch/stall Dust Ejection System provides increased durability by ejecting damaging dust and debris particles that enter the tool through the air intake vents Quick-change wheel release provides tool free wheel removal Dual Abrasion Protection provides increased motor protection from damaging dust and debris ingestion E-Clutch shuts the grinder off when a wheel pinch or wheel stall occurs, extending the life of the gears and motor Power-Off Overload Protection shuts the tool off before it reaches overload Vibration reducing 2-position side handle provides user comfort and reduces vibration Jam-pot, low profile gear case provides precise gear alignment for a smoother, quieter transmission while allowing access to tight spaces Auto-off brushes shut the tool down when the brushes need replacing to avoid tool damage Keyless adjustable guard provides tool free guard adjustments Includes grinding wheel, cutting wheel, 2 guards and wrench [Read more]
Store: Northern Tool and Equipment
Brand: Dewalt
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- DEWALT Small Angle Grinder - 4 1/2in., 7 Amp, Model# D28110
$69.99
The DEWALT 7.0 Amp Small Angle Grinder boasts a 11, 000 RPM motor for faster material removal and higher overload protection. Easy-to-control slim, ergonomic body design is ideal for grinding or cutting projects, including cutting metal and stone (with appropriate cutting wheel). Wheel Diameter (in.): 4 1/2, Amps: 7, Speed (RPM): 11, 000, Switch Type: Paddle switch, Spindle Thread Size: 5/8in. x 11, Side Handle: Yes, Wheel Included: Yes, Wrench Included: Yes, Case Included: No Quick Change wheel release Low-profile Jam-Pot gear case 2-position removable side handle 5/8in.-11 spindle thread accepts a wide range of 4 1/2in. accessories [Read more]
Store: Northern Tool and Equipment
Brand: Dewalt
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- DEWALT 6in., 5/8 HP Heavy Duty Bench Grinder, Model# DW756
$104.99
Induction motor runs at 3450 RPM. Tool rest is precision-machined aluminum. Rugged cast iron base and loader housing. Complete with 36 and 60 grit wheels. Wheel Diameter (in.): 6, Amps: 4, Speed (RPM): 3, 450, HP: 5/8, Spindle Thread Size: 1/2, Wheel Included: Yes, Case Included: No [Read more]
Store: Northern Tool and Equipment
Brand: Dewalt
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- DEWALT 9in. Large Angle Grinder - Model# D28494N
$189.99
High power 4 HP (maximum motor HP) 6, 000 rpm motor with overload protection provides higher operating speeds under load. Epoxy coated field and armature provide long service life against abrasion from airborne debris. Keyless adjustable guard for quick and easy adjusting. Wheel Diameter (in.): 9, Amps: 15, Speed (RPM): 6, 000, HP: 4, 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: No, Wrench Included: No, Case Included: No [Read more]
Store: Northern Tool and Equipment
Brand: Dewalt
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- DEWALT Reconditioned Grinder - 13 Amp, 4 1/2in., 9000 RPM, Model# D28115R
$255.99
DEWALT -built 13 Amp, 2.3 HP, 9000 RPM motor is designed for faster material removal and higher overload protection. Dual abrasion protection provides increased motor protection from damaging dust and debris ingestion. Keyless adjustable guard provides tool-free guard adjustments increasing productivity This DEWALT factory reconditioned tool is the same high-quality unit as a new DEWALT tool. The reconditioned tools go through an even tougher quality inspection than the new tools, including two full-quality inspections by DEWALT, plus an added quality inspection by Northern. DEWALT reconditioned tools come with a 1-year parts and labor warranty. Wheel Diameter (in.): 4 1/2, Amps: 13, Speed (RPM): 9, 000, HP: 2.3, Switch Type: Trigger, Spindle Thread Size: 5/8in.-11, Spindle Lock: Yes, Side Handle: Yes, Case Included: No Dust Ejection System provides increased durability by ejecting damaging dust and debris particles that enter the tool through the air intake vents Quick-change wheel release provides tool-free wheel removal 1-pc. brush arm prevents brush hang-up due to dust ingestion Vibration reducing two-position side handle provides user comfort and reduces user-felt vibration Jam-pot, low-profile gear case provides precise gear alignment for a smoother, quieter transmission while allowing access to tight spaces Auto-off brushes shut the tool down when the brushes need replacing to avoid tool damage [Read more]
Store: Northern Tool and Equipment
Brand: Dewalt
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- DEWALT Angle Grinder - 7in., 8500 RPM, 15 Amp, Model# D28474W
$159.99
The DEWALT Angle Grinder features a high-power 4 HP (maximum motor HP), 8000 RPM motor with overload protection that provides higher operating speeds under load. Wheel Diameter (in.): 7, Amps: 15, Speed (RPM): 8, 500, HP: 4, Switch Type: Trigger with lock-on switch, Spindle Thread Size: 5/8in. x 11, Spindle Lock: Yes, Side Handle: Yes, 5-position, Variable Speed: No, Wheel Included: Yes Epoxy-coated field and armature provide long service life against abrasion from airborne debris Can run on both AC and DC power Keyless adjustable guard allows for guard adjustments to be made without tools Low-profile gearcase allows for work in tight areas Automatic turn-off brushes shut down the tool when brushes need to be changed to avoid tool damage 2-wire double insulated S jacket rubber cord provides increased durability and life in hot and cold climates Lightweight increases productivity in extended use applications Max Watts Out: 3084 Watts Use Wheels RPM Above: 8500 RPM [Read more]
Store: Northern Tool and Equipment
Brand: Dewalt
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- DEWALT Small Angle Grinder - 4 1/2in., 10 Amp, Model# D28402
$89.99
The DEWALT 10 Amp Small Angle Grinder operates at 11, 000 RPM for faster material removal and higher overload protection. Dust Ejection System provides durability by ejecting dust particles that enter the tool through the air intake vents. Removable guard allows use in tight spaces. Image shown representational only; grinder does not include wheel. Wheel Diameter (in.): 4 1/2, Amps: 10, Speed (RPM): 11, 000, Switch Type: Paddle switch with lock-off button, Spindle Thread Size: 5/8in. x 11, Spindle Lock: Yes, Side Handle: Yes, Wheel Included: No, Wrench Included: Yes, Case Included: No Dust Ejection System ejects dust particles Quick Change wheel release for easy tool-free wheel removal Keyless adjustable guard for tool-free adjustment Low-profile Jam-Pot low profile gear case 1-pc. brush arm prevents brush hang-up Vibration-reducing removable side handle Paddle-switch lockoff prevents accidental start up Auto-off brushes shut tool down when brushes need replacing [Read more]
Store: Northern Tool and Equipment
Brand: Dewalt
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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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