Specification

What is Onpin OP-914D8?
The Onpin OP-914D8 air impact wrench is a heavy-duty pneumatic tool engineered for tightening and loosening large-capacity bolts and nuts in deep or hard-to-reach working areas. Powered by compressed air, the device converts pneumatic pressure into high-impact rotational torque delivered through an extended 8-1/2" anvil drive. It serves as a reliable, high-performance fastening solution for demanding industrial maintenance and assembly operations.
Key Features of Onpin OP-914D8
- Extended 8-1/2" driver anvil length significantly expands operational reach, making it ideal for accessing deeply set fasteners and recessed machinery components.
- Outside trigger configuration ensures ergonomic throttle control and operational convenience under heavy-duty industrial working conditions.
- High torque delivery featuring a working torque of 2000 Nm and a maximum torque of 2500–2800 Nm at standard air pressure of 90 psi (6.2 bar).
- Engineered for M27 ~ M30 bolt size capacity, operating at a free speed of 2800 rpm with an air consumption rate of 452 l/min (16 cfm).
- Robust structure with an overall length of 594 mm and a net weight of 13.3 kg, ensuring stability and durability during high-load continuous operation.
Technical Specifications of Onpin OP-914D8
- Brand: Onpin
- Model: OP-914D8
- Trigger Type: Outside trigger
- Driver Anvil Length: 8-1/2"
- Standard Operating Air Pressure: 90 psi / 6.2 bar / 6.3 kg/cm²
- Bolt Size Capacity: M27 ~ M30
- Working Torque: 2000 Nm / 1475 ft-lb
- MAX. Torque: 2500 ~ 2800 Nm / 1840 ~ 2060 ft-lb
- Free Speed: 2800 rpm
- Air Consumption: 452 l/min / 16 cfm
- Overall Length: 594 mm / 23.39 inch
- Air Inlet: 3/8" P.T
- Net Weight: 13.3 kg / 29.3 lb
- Sound Level: 100 dB(A)
Industrial Applications of Onpin OP-914D8
- Heavy Fleet & Earthmoving Machinery Maintenance: Ideal for servicing dual wheels, undercarriages, and structural components of heavy trucks, buses, and construction equipment.
- Structural Steelwork & Infrastructure: Applied in securing steel frame connections, bridges, industrial plants, and heavy fabrication assemblies.
- Shipbuilding & Port Logistics Equipment: Used in engine room servicing, dry dock operations, crane maintenance, and marine infrastructure repair.
- Plant Facility & MRO Operations: Essential tool for maintenance repair teams in cement plants, mining facilities, power stations, and steel mills.