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Onpin OP-11AKSA Pneumatic Air Tapper B12 Spindle - Overload Protection, 3-8mm, 150RPM
The Onpin OP-11AKSA air tapper features a durable gear-type structure and a low-runout B12 taper spindle for high-precision threading operations. Operating at a free speed of 150 RPM with an air consumption of 184 l/min (6.5 CFM), it handles a 3~8mm tapping capacity across aluminum, copper, and iron workpieces. Its universal three-jaw chuck includes internal overload protection that slips automatically under torque overload, preventing tap breakage and protecting workpieces during blind hole tapping. Equipped with a push-button forward/reverse switch for smooth one-handed operation and a low sound level of 82 dB(A), it is ideal for machinery manufacturing, machine tools, mold processing, and automotive/motorcycle parts industries. Contact us today for project bulk pricing, commercial discounts, system compatibility consulting, and official VAT invoice support.
- Onpin OP Series
- Onpin OP-AKSA Series
- OP-11 Series
- OP-11AKSA
- OP11AKSA
- OP-B12A
- Onpin air tapper
- pneumatic tapping machine
- B12 taper spindle air tapper
- 150rpm low speed air tapper
- overload protection pneumatic tapper
Design file download links:
PDF fileDescription
Specification OP-11AKSA
The Onpin OP-11AKSA Air Tapper is an industrial handheld pneumatic tapping tool designed for internal thread cutting on metal workpieces using compressed air at a standard operating pressure of 90 psi (6.2 bar). Engineered with a durable gear-type structure and a low-runout B12 taper spindle, it operates at a controlled free speed of 150 RPM for high-precision threading. The tool incorporates an internal overload protection mechanism within the collet that automatically slips under excessive torque to protect workpieces and prevent tap breakage during blind hole tapping.
Key Features of Onpin OP-11AKSA
- Gear-Type Structure: Provides reliable power transmission, high stability, and robust load capacity under continuous operations.
- B12 Taper Spindle: Engineered with minimal runout for superior accuracy and extended cutting tool service life.
- Built-in Overload Protection: Features automatic slip under torque overload, effectively protecting workpieces and enabling precise blind hole tapping.
- Three-Jaw Clamping Design: Universal chuck system compatible with taps of all international standard sizes.
- Push-Button Switch: Allows rapid directional changes for effortless quick one-handed operation.
- Low Noise Operation: Maintains a low sound level of 82 dB(A) for a safer and quieter workshop environment.
Technical Specifications of Onpin OP-11AKSA
- Brand: Onpin
- Model: OP-11AKSA
- Tapping Chuck Model: OP-B12A
- Spindle Taper Size: B12
- Tapping Capacity Size:
- Aluminum: 3 ~ 8 mm
- Copper: 3 ~ 8 mm
- Iron: 3 ~ 8 mm
- Free Speed: 150 RPM
- Air Consumption: 184 l/min (6.5 CFM)
- Overall Length: 298 mm (11.73 inch)
- Air Inlet: 1/4 P.T (1/4")
- Net Weight: 2.03 kg / 2.08 kg (4.47 lb)
- Sound Level: 82 dB(A)
- Operating Air Pressure: 90 psi / 6.2 bar / 6.3 kg/cm²
Industrial Applications of Onpin OP-11AKSA
- Machinery Manufacturing Industry: Internal thread cutting on structural machine frames, housings, and components.
- Machine Tools Industry: Production, fabrication, and maintenance of workshop machine tools and fixtures.
- Mold Processing Industry: High-precision tapping on mold plates, mold bases, and specialized tooling inserts.
- Automotive & Motorcycle Parts Industry: Mass production tapping for vehicle hardware, structural parts, and metal brackets.
