The CP7731C is the 3/8″ version of this ultra-lightweight impact wrench, weighing just 1 kg and measuring 110 mm long while still delivering up to 469 Nm of reverse torque. Its composite housing and curved, rubber-injected handle make it a strong choice for general maintenance in confined spaces.
Benefits
- Ultra compact tool with its 4 .3″ / 108 mm length allowing for work in tight places
- Composite housing, jumbo hammer impact mechanism, and steel motor for high durability while also being very light and powerful
- Easily adjustable one hand operation forward / reverse (side2side selector) with 2 positions in reverse (max and low torque)
- Curved handle with Thermoplastic injected rubber for better handling
- Composite ultra-lightweight housing
Technical Specifications
| Torque | |
|---|---|
| Max working torque fwd | 392 Nm |
| Max torque reverse | 469 Nm |
| Min working torque fwd | 83 Nm |
| Torque limited | No |
| Air information | |
| Air consumption at load | 7.9 l/s |
| Air inlet thread size (in) | 1/4 |
| Max dynamic air working pressure | 6.3 bar |
| Min hose diam (16 ft hose length) | 0.38 in |
| Min hose diam (5 m hose length) | 10 mm |
| Noise & vibrations | |
| Sound Power | 107 dB(A) |
| Sound Pressure | 96 dB(A) |
| Uncertainty vibration-K | 1.4 m/s² |
| Vibration (m/s²) | 10.33 |
| Speed | |
| Free Speed | 9000 rpm |
| Size & Weight | |
| Length (L) | 110 mm |
| Power weight ratio | 460 Nm/kg |
| Side to Center | 32 mm |
| Weight | 1 kg |
| Design & Functions | |
| Blow per minute | 1400 |
| Body | Composite |
| Clutch housing | Aluminum |
| Clutch lubrication type | Grease |
| Handle type | Pistol |
| Impact mecanism | Single hammer |
| Main Material type | Composite |
| Output drive size (in) | 3/8 |
| Output drive type | Sq |
| Output retainer type | Friction ring |
| Starting system | Trigger |
- We are Chicago Pneumatic Authorised Warranty & Service Providers from our workshop in Southampton.
- We offer a range of after-sale services including HAV Testing


