Description
NPK SD-4A Pneumatic Air Screwdriver
Nippon Pneumatic Mfg. Co. | High-Speed Precision Fastening Tool
This genuine Nippon Pneumatic (NPK) SD-4A air screwdriver has been pulled from a clean, low-impact electronics assembly environment. The unit has been thoroughly cleaned, oiled, and bench-tested. The internal clutch mechanism engages cleanly, the rotation is smooth and responsive up to its rated 2,000 RPM, and the external torque adjustment collar functions as designed.
Genuine NPK SD-4A inline pneumatic screwdriver featuring a robust metal casing and push-to-start action.
Product Overview
The NPK SD-4A by Nippon Pneumatic is an industrial-grade, inline-style pneumatic screwdriver designed for high-efficiency production lines and precise assembly applications. Operating at a swift free speed of 2,000 RPM, it maximizes throughput while minimizing operator fatigue.
Equipped with an adjustable torque range of 1.0 to 3.4 Nm, the SD-4A ensures consistent tightening force, preventing damage to delicate components or thread stripping. Its robust, ergonomic metal housing is built to withstand continuous use in demanding manufacturing environments, making it a reliable addition to any assembly workstation.
Technical Specifications
| Parameter | Specification Details |
|---|---|
| Brand / Manufacturer | Nippon Pneumatic Mfg. Co., Ltd. (NPK) |
| Model Number | SD-4A |
| Free Speed | 2,000 RPM (Rotations Per Minute) |
| Torque Range | 1.0 – 3.4 Nm (Newton-meters) |
| Body Style | Inline / Push-to-Start or Lever Activated |
| Chuck Size / Drive | Standard hex quick-change receiver |
| Air Inlet Size | Standard 1/4″ NPT Thread |
| Construction | Heavy-duty aluminum alloy front and mid-body housing |
Key Features & User Benefits
- Adjustable Clutch Mechanism: Internal mechanical clutch allows precise pre-set torque targets, automatically disengaging when the target torque is met to prevent over-tightening.
- High-Speed 2,000 RPM Motor: Optimized for rapid fastener rundown, drastically shortening assembly cycle times on non-impact, light-to-medium industrial materials.
- Smooth Inline Operation: Minimizes torque reaction kickback transmitted to the operator’s wrist, promoting safer, longer working shifts.
- Easy Air Connection: Integrated top suspension loop makes it perfect for overhead balancer setups to keep workbenches clear and the tool readily accessible.
