Excellent 4.9 | 18,452 reviews

DYNABRADE 6" (152 mm) Dia. Type 11 Vertical Cup Wheel Grinder - 53243

DYNABRADE 6" (152 mm) Dia. Type 11 Vertical Cup Wheel Grinder - 53243

$1,076.99
$1,076.99 $1,434.99
SAVE 24% Sold out
DYNABRADE 6" (152 mm) Dia. Type 11 Vertical Cup Wheel Grinder - 53243

DYNABRADE 6" (152 mm) Dia. Type 11 Vertical Cup Wheel Grinder - 53243

$1,076.99
$1,076.99 $1,434.99
SAVE 24% Sold out

DYNABRADE 6" (152 mm) Dia. Type 11 Vertical Cup Wheel Grinder - 53243

  •  3 hp, 6,000 RPM, Gearless, Rotational Exhaust, 5/8"-11 Male Spindle Thread.
  • 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. Includes safety-lock throttle lever. For peak performance, use of optional 95870 Air Hose-1/2" (13 mm) diameter is recommended.
  • Model accepts optional Type 11 Cup Wheels, 6" (152 mm) diameter. Wheel NOT included with tool. Covers more area in less time!
Specifications   
Air Consumption (SCFM) 89.0
Power (hp) 3.0
Max. RPM 6,000
Tool Spindle Thread 5/8-11 Male
Air Inlet Thread 1/2" NPT
Exhaust Type Side
GL_Country Of Origin US
Hose I.D. in. (mm) 1/2"
Vacuum Type Non-Vacuum
Height in. (mm) 7.5
Length in. (mm) 9.5
Weight lb. (kg) 11.1
Width in. (mm) 10.0
Pkg. Height in. (mm) 8.5
Pkg. Length in. (mm) 14
Pkg. Weight lb. (kg) 12.1
Pkg. Width in. (mm) 10
CE Certified Yes
EAN (UPC) 0616026532434
EAC Certified Yes
Tool Style Vertical
What our Experts Think  
  • The Dynabrade 53243 6" (152 mm) Type 11 Vertical Cup Wheel Grinder is a high-power industrial vertical grinder built for extreme-duty metal removal and surface prep in heavy fabrication environments.
  • Equipped with a 3 HP governor-controlled air motor, it delivers strong torque and maintains stable speed under heavy load for consistent grinding performance.
  • Runs at a maximum speed of ~6,000 RPM, optimized for controlled but aggressive use of Type 11 cup wheels for fast stock removal.
  • Designed for 6" (152 mm Type 11 abrasive cup wheels, making it ideal for large-area grinding, weld cleanup, rust and scale removal.
  • Features a gearless motor design, reducing wear parts, improving durability, and lowering long-term maintenance needs in continuous-use industrial settings.
  • Includes safety-lock throttle, insulated adjustable handle, and rotational exhaust, improving operator control and comfort during long, high-load grinding sessions.
  • Built for heavy industrial environments such as shipyards, steel mills, foundries, and fabrication shops, where maximum material removal rate is more important than finesse.
  • Best suited for professionals needing a high-torque vertical grinder for fast, large-area grinding and aggressive surface prep, rather than precision finishing or detailing work
 
Q&A    

Q: What is the Dynabrade 53243 6" Type 11 Vertical Cup Wheel Grinder used for?
A: It is a heavy-duty pneumatic vertical grinder designed for fast stock removal, weld cleanup, rust and scale removal, and surface preparation in industrial environments.

Q: What makes the Type 11 cup wheel design important?
A: It uses a 6" vertical cup wheel (Type 11 abrasive wheel) which provides a large contact area for aggressive grinding and faster material removal on flat or slightly contoured surfaces.

Q: What are its key specifications?
A: It features a 3 HP air motor, 6,000 RPM free speed, gearless design, and 5/8"-11 spindle thread, built for continuous heavy-duty use.

Q: What industries use this grinder?
A: It is commonly used in shipyards, foundries, steel mills, heavy fabrication shops, and industrial maintenance operations.

Q: Why is it called a vertical grinder?
A: Because the grinding wheel is oriented vertically, allowing operators to apply downward force for efficient surface grinding and leveling.

Q: What materials can it be used on?
A: It is used on steel, stainless steel, cast iron, welds, rusted surfaces, and structural metal components.


Maintenance Tips    
  • Lubricate air motor daily with pneumatic tool oil to maintain smooth, high-torque performance.
  • Use clean, dry compressed air at recommended PSI to prevent internal wear and corrosion.
  • Inspect 6" Type 11 cup wheels before use; replace any cracked, worn, or unbalanced wheels immediately.
  • Check spindle, flange, and wheel mounting for tightness and correct alignment before operation.
  • Keep air inlet and exhaust ports clear of grinding dust for proper cooling and airflow.
  • Ensure hoses and fittings are leak-free to maintain consistent power and grinding speed.
  • Do not exceed rated wheel speed to prevent wheel failure and safety hazards.
  • Monitor vibration during use; excessive vibration may indicate wheel imbalance or bearing wear.
  • Clean tool body after each use to remove metal dust and debris buildup.
  • Store in a dry, clean environment to protect internal air motor and components from moisture and corrosion
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