Built for tire retread preparation and repair-area buffing, the Chicago Pneumatic CP873C-HD Heavy-Duty Low-Speed Air Tire Buffer gives tire shops a compact short-version tool for controlled rubber surface work. Its 3,500 RPM free speed is matched to low-speed tire buffing rather than high-speed grinding, helping operators prepare repair areas with better control. The 7/16" hex quick-change slip chuck accepts compatible buffing accessories and speeds up wheel changes during repetitive tire service tasks, while the 0.67 hp motor provides the power needed for retreading and repair prep applications.
At 8.74" long and 2.31 lb, the CP873C-HD is the shorter version in the CP873C-HD heavy-duty tire buffer range, making it easier to handle in close work areas around tires, stands, and service equipment. The aluminum body with composite over-sleeve helps keep the tool manageable during repeated use, and the rear exhaust directs air away from the immediate work area. A safety lever, lock-off design, and air swivel inlet support controlled handling while moving around large tire assemblies.
Type: Low-Speed Air Tire Buffer | Model: CP873C-HD | SKU: 8940177048 | Configuration: Heavy-Duty Short Version | Power: 0.67 hp / 500 W | Free Speed: 3,500 RPM | Chuck: 7/16" Hex Quick-Change Slip Chuck | Air Consumption at Free Speed: 4 CFM / 1.9 l/s | Air Inlet: 1/4" NPT | Max Dynamic Air Working Pressure: 90 PSI / 6.3 bar | Minimum Hose Diameter: 3/8" / 10 mm | Exhaust: Rear | Handle Type: Straight Handle | Starting System: Safety Lever | Trigger Type: On/Off | Speed Control: Yes | Main Material: Aluminium, Composite Over-Sleeve | Length: 8.74" / 222 mm | Width: 1.81" / 46 mm | Height: 2.95" / 75 mm | Weight: 2.31 lb / 1.05 kg | Sound Pressure: 88.5 dB(A) | Sound Power: 99.5 dB(A) | Vibration: 2.4 ft/s² / 0.73 m/s²
Features:
- Low-speed tire buffer configuration supports controlled surface preparation for tire repair and retreading work.
- Short version body helps improve handling when working close to the tire surface or around repair stands.
- 7/16" hexagonal quick-change slip chuck allows faster buffing wheel changes between prep steps.
- Composite over-sleeve and light tool weight help reduce handling effort during repeated tire service tasks.
- Reinforced streamline and lock-off safety lever help prevent unintended starts during handling.
- Air swivel inlet improves hose movement and reduces hose pull while repositioning the tool.
- Rear exhaust helps direct air away from the operator and the immediate buffing area.
Applications:
- Tire retread operations - preparing rubber surfaces before bonding, patching, and retread processing.
- Commercial tire shops - buffing repair areas on truck, trailer, bus, and fleet tires.
- Fleet maintenance bays - cleaning and roughening tire repair zones during scheduled service work.
- Automotive tire repair - controlled low-speed buffing before plug-patch installation and related repair procedures.
- Garage and specialty tire service - compact pneumatic tool control for rubber prep where a shorter buffer is preferred.
FAQs:
- Q: What is the CP873C-HD used for?
A: The CP873C-HD is used for low-speed tire buffing during retread and repair preparation. It helps roughen rubber surfaces so patches, plugs, and bonding materials can be applied to a properly prepared area. - Q: Is this the short version or extended version?
A: This model is the short version of the CP873C-HD heavy-duty tire buffer range. It is 8.74" long, making it more compact than the extended CP873C-HDES version. - Q: What accessories fit the 7/16" hex quick-change chuck?
A: Use compatible tire buffing accessories made for a 7/16" hex quick-change slip chuck. Always confirm that the accessory is rated for at least the tool's 3,500 RPM free speed. - Q: What air supply does this tire buffer require?
A: Chicago Pneumatic specifies a 1/4" NPT air inlet, 90 PSI maximum dynamic working pressure, and a minimum 3/8" hose diameter for a 16 ft hose length. - Q: Can this tool be used as a general-purpose grinder?
A: No. The CP873C-HD is a low-speed tire buffer for rubber surface preparation. It should not be used as a substitute for a die grinder, cut-off tool, or high-speed material removal grinder.
| Model | Part number | Power | Chuck max capacity | Free speed rpm |
Air consumption at load | Net weight | Length | Vibration level ISO 28927 (m/s²) |
Sound pressure ISO 15744 dB(A) |
Sound power ISO 15744 dB(A) |
Air inlet in. |
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| hp | W | in. | mm | cfm | l/s | lb | kg | in. | mm | a | k | ||||||
| ModelCP871C | Part number8940176889 | Power (hp)0.47 | Power (W)350 | Chuck max capacity (in.)3/8 | Chuck max capacity (mm)10 | Free speed (rpm)22000 | Air consumption at load (cfm)— | Air consumption at load (l/s)— | Net weight (lb)1.61 | Net weight (kg)0.73 | Length (in.)7.91 | Length (mm)201 | Vibration a, ISO 28927 (m/s²)4 | Vibration k, ISO 28927 (m/s²)0.9 | Sound pressure, ISO 15744 (dB(A))88 | Sound power, ISO 15744 (dB(A))88 | Air inlet (in.)1/4 |
| ModelCP873C | Part number8940176891 | Power (hp)0.47 | Power (W)350 | Chuck max capacity (in.)7/16 | Chuck max capacity (mm)11 | Free speed (rpm)3000 | Air consumption at load (cfm)— | Air consumption at load (l/s)— | Net weight (lb)2.25 | Net weight (kg)1.02 | Length (in.)8.66 | Length (mm)220 | Vibration a, ISO 28927 (m/s²)1.1 | Vibration k, ISO 28927 (m/s²)— | Sound pressure, ISO 15744 (dB(A))87 | Sound power, ISO 15744 (dB(A))87 | Air inlet (in.)1/4 |
| ModelCP873C-HDES | Part number8940177047 | Power (hp)0.67 | Power (W)500 | Chuck max capacity (in.)7/16 | Chuck max capacity (mm)11 | Free speed (rpm)3500 | Air consumption at load (cfm)— | Air consumption at load (l/s)— | Net weight (lb)2.56 | Net weight (kg)1.16 | Length (in.)11.85 | Length (mm)301 | Vibration a, ISO 28927 (m/s²)0.8 | Vibration k, ISO 28927 (m/s²)0.6 | Sound pressure, ISO 15744 (dB(A))88.7 | Sound power, ISO 15744 (dB(A))88.7 | Air inlet (in.)1/4 |
| ModelCP873C-HD | Part number8940177048 | Power (hp)0.67 | Power (W)500 | Chuck max capacity (in.)7/16 | Chuck max capacity (mm)11 | Free speed (rpm)3500 | Air consumption at load (cfm)— | Air consumption at load (l/s)— | Net weight (lb)2.31 | Net weight (kg)1.05 | Length (in.)8.74 | Length (mm)222 | Vibration a, ISO 28927 (m/s²)0.7 | Vibration k, ISO 28927 (m/s²)0.6 | Sound pressure, ISO 15744 (dB(A))88.5 | Sound power, ISO 15744 (dB(A))88.5 | Air inlet (in.)1/4 |
— All models: Hose int. 3/8” (10mm) - @90 PSI (@6.3 Bar)
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For help selecting the correct Chicago Pneumatic Tire Buffers for your assembly application, call (800) 608-5210 or email info@intlairtool.com
- Type
- Tire Buffer
- RPM
- 3500
- Power (hp)
- 0.67
- Chuck Capacity (in.)
- 7/16
- Starting System
- Safety Lever
- Exhaust
- Rear
- Sound Power (dBA)
- 88.5
- Sound Pressure (dBA)
- 88.5
- Air Inlet
- 1/4"
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