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Dynabrade Depressed Center Wheel Grinders For Welding & Metalworking
These tools have been identified as Dynabrade’s top performing grinders for weld preparation and removal applications. Consistent speed and power are critical factors to consider when selecting an air tool. Dynabrade manufactures powerful tools that maintain speed and will allow a welder to quickly ready the work surface or remove a poor or damaged weld.
7″ & 9″ Vertical Depressed Center Wheel Grinders
Dynabrade 7″ & 9″ Depressed Center Wheel Grinders provide fast material removal when preparing to weld or removing an existing weld. Governor controlled motors ensure our tools maintain their speed under load – allowing operators to get more work done with less effort!
• Ideal for heavy-duty applications in foundries and shipyards. Fast stock, rust and scale removal.
• Governor-controlled air motor maintains tool RPM under heavy load. Over-speed shut-off feature ensures maximum operator safety. Motor is gearless with less wearable parts, ensuring reduced maintenance and less down-time.
• Insulated tool handle minimizes cold air transmission to the hand. Handle position is adjustable for operator comfort. For peak performance, use of optional 95870 Air Hose-1/2″ (13 mm) diameter is recommended.

• 7″ and 9″ configurations available, with powerful 2hp and 3hp motors.
Right Angle Depressed Center Wheel Grinders
1.3 hp Models
Model 52630 4″ (102mm) Diameter
Model 52632 4-1/2″ (115mm) Diameter
Model 52633 5″ (127mm) Diameter
5″ & 4-1/2″ Diameter – accepts Type 27 Reinforced Depressed Center Wheels and Abrasive Flap Discs (flanging sold separately) with 7/8″ center hole and wheel widths of 1/8″–1/4″.
4″ Diameter – accepts Type 27 Reinforced Depressed Center Wheels with 5/8″ center hole and wheel widths of 1/8″–1/4″.

.7 hp Models
4″ Diameter – optional Flange (50359) for use with 4″ diameter wheels with 5/8″ center hole.
Composite Housing
Composite materials are more light-weight to increase manoeuvrability & help reduce operator fatigue. Available in both standard length and 3-3/8″ extension models.
Model 54771 Standard, 12,000 RPM
Model 54775 Standard, 13,500 RPM
Model 54773 3-3/8″ Extension, 12,000 RPM
Model 54777 3-3/8″ Extension, 13,500 RPM

Steel Housing
Steel housings increase durability in rugged applications. Available in both standard length and 3-3/8″ extension models.
Model 54787 Standard, 12,000 RPM
Model 54791 Standard, 13,500 RPM
Model 54789 3-3/8″ Extension, 12,000 RPM
Model 54793 3-3/8″ Extension, 13,500 RPM

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