TC Wilson

1-800-230-2636

BOILER TUBE EXPANDERS

PNEUMATIC

Series 921 - Small Wheel Grinders

Model 921-2800 with 1/2-Inch Carbide Bur

Model 921-1800 with 2-Inch Straight Wheel

Model 921-1500 with 1-1/4-Inch Cone Wheel & Spacer

Model 921-2100 with 3/4-Inch Mounted Point
For Burring, Die Grinding, Contouring, Flash Removal, Snagging, and Weld Smoothing

Features
  • Powerful — for high metal removal rate.
  • Designed for continuous cool operations.
  • Lever throttle control with safety lock.
  • Powerful three-blade swastika type motor.
  • True running collets (collet chuck models).
  • Rugged steel body construction.
  • Cylinder hardened, ground, and honed for longer wear.
  • Air-cooled, heavy-duty bearings front and rear.
  • Adjustable exhaust deflector.
  • Built-in speed regulator.

These small powerful grinders are designed for driving small grinding wheels, rotary files, carbide burrs, routers, and sanding or cutting discs. Metal is removed quickly and accurately with minimum effort and operator fatigue. These compact and perfectly balanced tools are available in spindle and collet chuck models with lever throttle control. The spindle and collet adapters available permit any one of the models to accommodate a wide choice of grinding wheels and mounted accessories.

Air consumption: 25 SCFM MAX.
Recommended working pressure: 90psi
For lubrication use filter-lubrication unit Part No. 8596 consisting of fog type
lubricator and air filter.
 
Series 921 Type 1
Series 921 Type 3
Type 1
3/8" x 24" Thread Spindle
Type 3
With Governor & Automatic Lubricator
3/8" x 24" Thread Spindle
   
Series 921 Type 2
Series 921 Type 4
Type 2
1/4-Inch Collet Chuck Spindle
Type 4
With Governor & Automatic Lubricator - 1/4-Inch Collet Chuck Spindle

Type Part No. Free Speed rpm Length Body Weight Air Inlet In/NPT Hole Size ID/In Grinding Wheel Capacity Spindle Thread Spindle Thread SM No.
Inches Dia. Inches Lbs. Dia x Width/Inch Inch Inch
1 921-1600 16,000 6-5/16 1-11/16 2-1/8 1/4 3/8 2-1/4 x 1/2 3/8 - 24 - 85
921-1800 18,000 2 x 1/2
921-1000 20,000 1-3/4 x 1/2
921-1500 25,000 1-1/4 x 1/2
2 921-2600 16,000 5-7/8 2 - - 1/4
921-2800 18,000
921-2000 20,000
921-2200 22,000
921-2500 25,000
3 921-7200 12,000 8-1/16 2-3/4 3 x 1/2 3/8 - 24 - 92
921-7500 15,000 2-1/2 to 1/2
921-7800 18,000 2 x 1/2
4 921-8200 12,000 7-1/2 2-5/8 - - 1/4
921-8500 15,000
921-8800 18,000

 
Optional Accessories Part No.
1/4-Inch Inner Diameter Hose - 8 ft. 50371
2 - 2-1/2-Inch Wheel Guards Types
1 & 3		 53535
2-1/2 - 3-Inch Wheel Guards 53522
1/8-Inch or 3/16-Inch Collet
Wrenches Supplied Part No.
With Types 1 & 3 5760
With Types 2 & 4 2014 & 5760
Spare Burrs and Grinding Wheels are available.
Contact the factory for pricing.