Chicago Pneumatic Angle Grinder | CP3650-120AB5V | 12000 RPM | 5" Wheel Size

Built for 5" wheel grinding, cutting, and surface preparation where vibration control matters, the Chicago Pneumatic CP3650-120AB5V angle grinder delivers 12,000 RPM free speed for productive work with properly rated abrasive wheels. Its 2.4 HP / 1800 W governed pneumatic motor helps maintain wheel speed during weld cleanup, edge grinding, cutting, and metal surface preparation. The 5" / 125 mm wheel capacity gives users more grinding coverage than a 4-1/2" grinder while staying more compact than larger 6" or 7" tools. A 5/8"-11 UNC spindle thread supports common North American wheel hardware when the selected wheel, guard, and speed rating match the application.

The CP3650-120AB5V adds an autobalancer, a built-in balancing system that helps reduce vibration while the wheel is running. This makes the model a strong fit for repeated grinding passes where control, finish consistency, and reduced hand fatigue are key selection factors. A keyless pull-and-turn swiveling guard provides 360° rotation with indexed positions, while the spindle lock button helps speed up abrasive disc changes. The steel swiveling air inlet helps reduce hose pull, and the aluminum body with composite over-sleeve gives the operator a manageable grip surface during production, repair, and MRO work.

Type: Angle Grinder | Series: CP3650 | Model: CP3650-120AB5V | SKU: 6151607900 | Free Speed: 12,000 RPM | Power: 2.4 HP / 1800 W | Max Wheel Capacity: 5" / 125 mm | Spindle Thread: 5/8"-11 UNC | Auto Balancer: Yes | Abrasive Type: Type 27, Type 41 | Wheel Inner Diameter: 22.2 mm | Max Wheel Thickness: 10 mm | Air Consumption at Free Speed: 37.3 CFM / 17.6 l/s | Air Consumption at Load: 63.1 CFM / 29.8 l/s | Air Inlet: 3/8" BSP | Working Pressure: 90 PSI / 6.3 bar | Min. Hose Diameter: 1/2" / 13 mm | Length: 9.74" / 247.5 mm | Height: 4.02" / 102 mm | Width: 5.51" / 140 mm | Side to Center: 1.34" / 34 mm | Weight: 4.96 lb / 2.25 kg | Sound Pressure: 93 dB(A) | Sound Power: 104 dB(A) | Vibration Level: 5.9 m/s² | Vibration Uncertainty K: 1.2 m/s² | Guard Rotation: 360° | Guard Positions: 15 | Guard Type: Keyless Pull and Turn | Main Material: Aluminum with Composite Over-Sleeve | Spindle Lock: Yes | Starting System: Safety Lever

Features:

• 12,000 RPM free speed supports fast grinding and cutting with compatible 5" abrasive wheels.
• 2.4 HP / 1800 W governed motor helps maintain productive wheel speed during weld cleanup, edge grinding, cutting, and surface preparation.
• Autobalancer helps reduce vibration during repeated grinding passes compared with non-balanced configurations.
• 5" / 125 mm wheel capacity provides more coverage than a 4-1/2" grinder while preserving compact handling for closer work areas.
• 5/8"-11 UNC spindle thread supports compatible wheel hardware when the correct guard and abrasive accessory are selected.
• Keyless pull-and-turn swiveling guard offers 360° rotation with 15 guard positions for faster guard adjustment.
• Spindle lock button helps reduce abrasive disc change time between cutting and grinding operations.
• Steel swiveling air inlet and vibration-damping side handle help improve handling around frames, weldments, fixtures, and workpieces.

Applications:

• Metal fabrication: grinding weld seams, cleaning cut edges, removing burrs, and preparing steel or aluminum parts before finishing.
• Industrial maintenance and MRO: surface cleanup, rust removal, wheel-based cutting, and repair work on guards, covers, fixtures, and plant hardware.
• Frame and equipment service: grinding brackets, supports, tabs, repair plates, and structural components where a 5" wheel is appropriate.
• Production grinding cells: repeated abrasive wheel work where the autobalancer helps reduce vibration during longer operating cycles.
• Workshop and field service: pneumatic grinding and cutting for users with a compressed-air system capable of supporting the tool's high air demand.

FAQs:

• Q: What wheels can be used with the CP3650-120AB5V?
  A: Use compatible 5" / 125 mm Type 27 grinding wheels or Type 41 cutting wheels that match the 5/8"-11 UNC spindle setup, guard configuration, and work application. The wheel's maximum operating speed must equal or exceed the grinder's 12,000 RPM free speed.
• Q: What does the autobalancer do?
  A: The autobalancer helps reduce vibration by improving wheel balance while the grinder is running. This can improve control during repeated grinding passes and helps distinguish this model from non-autobalancer CP3650 variants.
• Q: How is the CP3650-120AB5V different from the CP3650-120AB5?
  A: Both are 5", 12,000 RPM angle grinders with a 5/8"-11 UNC spindle, but the CP3650-120AB5V includes an autobalancer. Choose the V model when reduced vibration is an important part of the grinding setup.
• Q: What air supply does this angle grinder require?
  A: Chicago Pneumatic lists 63.1 CFM / 29.8 l/s air consumption at load and 37.3 CFM / 17.6 l/s at free speed. Use a compressed-air system that can maintain 90 PSI / 6.3 bar at the tool through a minimum 1/2" / 13 mm hose.
• Q: Is this grinder the same as the CP3650-120AH5V?
  A: No. Both are 5", 12,000 RPM CP3650 grinders with autobalancers, but the CP3650-120AB5V uses a 5/8"-11 UNC spindle thread. The CP3650-120AH5V uses a Hexa output spindle shaft, so wheel mounting hardware must match the exact model.

Looking for more information about Chicago Pneumatic Angle Grinder? Click here to view the Catalog.

For help selecting the correct Chicago Pneumatic Angle Grinders for your assembly application, call (800) 608-5210 or email info@intlairtool.com