Cutting tool・tooling

NAKASEIKI

🔩 NPC-4FSS-43 – Sensor-Compatible Pneumatic Chuck for Irregular Workpieces
Four-Finger Precision. Smart Integration. Built for Complex Clamping.
The NPC-4FSS-43 is a wedge-type pneumatic chuck designed for inspection, machining, and handling of irregularly shaped components. Featuring four fingers and a φ6 mm through-hole, it supports sensor insertion for seat detection, coolant flow, and chip evacuation. With a 3 mm jaw stroke and robust steel construction, it delivers reliable performance in demanding environments.

⚙️ Key Features
- 🧩 Wedge Mechanism – 4 inch / 4 fingers
→ Provides stable and balanced clamping, ideal for non-standard workpieces
- 📏 Jaw Stroke – φ3 mm
→ Offers flexibility for various component sizes
- 🎯 Repeatability Accuracy – 0.005 mm
→ Suitable for precision inspection and automated handling
- 🛠️ φ6 mm Through-Hole
→ Enables sensor integration for seat confirmation, coolant flow, and chip removal
- 🌬️ Dual Side Air Port Configuration
→ Simplifies pneumatic setup and system integration

📐 Technical Specifications
| Item | Value |
| Model | NPC-4FSS-43 |
| Repeatability Accuracy | ±0.005 mm |
| Number of Fingers | 4 |
| Jaw Stroke | φ3 mm |
| Mounting Hole Pitch | P.C.D 89 mm |
| Front Mounting Bolts | M5 × 8 positions |
| Body Mounting Fit (ID × Depth) | φ60 H7 × 2 mm |
| Operating Medium | Compressed Air |
| Operating Pressure | 0.15 – 0.6 MPa |
| Body Material | Steel (Fe) |
| Weight | 3220 g |
| Max Allowable RPM | – |
| External Gripping Force (Calc.) | 1161 N @ 0.1 MPa |
🧰 Integration Benefits
- ✅ Ideal for inspection jigs and irregular workpiece clamping
- ✅ Sensor-compatible for smart automation and monitoring
- ✅ High gripping force with balanced four-finger design
- ✅ CAD and PDF documentation available for download

✨ NPC-4FSS-43 – A robust, sensor-ready pneumatic chuck designed for precision and versatility in complex industrial applications.