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/ Onpin OP-11AK Air Tapper - B12 Taper Spindle, Tapping M3-M12, Free Speed 150rpm, Torque Collet Protection, Air Inlet 1/4" PT
Onpin OP-11AK Air Tapper - B12 Taper Spindle, Tapping M3-M12, Free Speed 150rpm, Torque Collet Protection, Air Inlet 1/4" PT
The Onpin OP-11AK Air Tapper is a heavy-duty pneumatic threading solution designed for high-precision operations under 6.2 bar (90 psi) operating pressure across machinery, machine tools, molds, automotive parts, and aerospace engine applications. Built with a low-runout B12 taper spindle and a gear-driven structure, it delivers a tapping capacity of 3~12 mm in aluminum/copper and 3~8 mm in iron. The tool utilizes a protective torque collet ideal for blind-hole tapping, a rocker switch for one-handed forward/reverse control, and an auxiliary handle for superior operational stability. Featuring a free speed of 150 rpm, air consumption of 184 l/min (6.5 cfm), low sound level of 82 dB(A), and a compact net weight of 1.73 kg, it minimizes operator fatigue while maximizing productivity.
- OP-11AK
- 11AK
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- Onpin air tapper B12 spindle
- pneumatic air tapper M3 M12
- torque collet air tapper
- blind hole air tapping tool
- gear driven pneumatic air tapper
Design file download links:
PDF fileDescription
Specification OP-11AK
The Onpin OP-11AK is a heavy-duty pneumatic air tapping tool engineered for precision internal threading in metalworking and industrial manufacturing. Driven by a compressed air motor connected to a gear transmission system, it transforms 90 psi (6.2 bar / 6.3 kg/cm²) operating air pressure into stable rotational torque to drive tapping bits. Featuring a B12 taper spindle and torque-limiting collet system, the Onpin OP-11AK delivers efficient threading operations while protecting workpieces and preventing tap breakage.
Key Features
- Gear-driven structure: Provides robust power output and stable transmission during continuous tapping operations.
- B12 taper spindle: Engineered for low runout performance, ensuring tight concentricity and precise thread geometry.
- Torque collet protection: Specifically designed for blind hole tapping to prevent tap breakage and eliminate workpiece damage.
- Single-size collet design: Employs one collet per size, making it ideal for dedicated single-size mass production lines.
- Rocker switch: Features effortless one-hand forward/reverse control for rapid operation cycles.
- Bottom exhaust design: Redirects exhaust air downward to maintain a quiet workspace at an 82 dB(A) sound level.
- Auxiliary handle: Ergonomically designed to deliver improved stability and reduce operator fatigue.
- Hanging ring: Built-in ring allowing seamless integration with spring balancers on assembly lines.
Technical Specifications
- Brand: Onpin
- Model Code: OP-11AK
- Spindle Type: B12
- Tapping Capacity - Aluminum: 3 ~ 12 mm
- Tapping Capacity - Copper: 3 ~ 12 mm
- Tapping Capacity - Iron: 3 ~ 8 mm
- Free Speed: 150 rpm
- Air Consumption: 184 l/min (6.5 cfm)
- Overall Length: 255 mm (10.04 inch)
- Air Inlet Size: 1/4" P.T.
- Net Weight: 1.73 kg (3.81 lb)
- Sound Level: 82 dB(A)
- Operating Air Pressure: 90 psi / 6.2 bar / 6.3 kg/cm²
Industrial Applications
- Machinery manufacturing: Precision internal threading on machine frames and heavy structural parts.
- Machine tools industry: Tapping mounting plates, fixture bases, and slide tables.
- Mold industry: Threading injection mold plates, die bases, and core components.
- Automotive parts manufacturing: Tapping transmission housings, engine blocks, and chassis components.
- Aerospace engine applications: High-precision threading tasks required in aerospace component manufacturing.
