Cutting tool・tooling

NAKASEIKI

🔩 NPC-4RSS-310 – Long-Stroke Pneumatic Chuck with Through-Hole
Extended Stroke. Sensor-Ready. Built for Smart Machining.
The NPC-4RSS-310 is a wedge-type pneumatic chuck designed for versatile clamping and intelligent integration. Featuring a φ10 mm jaw stroke and a φ10 mm through-hole, it supports seat detection, coolant flow, and chip evacuation—making it ideal for automated machining and inspection systems.

⚙️ Key Features
- 🧩 Wedge Mechanism – 4 inch / 3 fingers
→ Provides synchronized and stable gripping for precision applications
- 📏 Long Jaw Stroke – φ10 mm
→ Accommodates a wide range of workpiece diameters for flexible use
- 🛠️ φ10 mm Through-Hole
→ Enables sensor insertion, seat confirmation, coolant delivery, and chip removal
- 🎯 Repeatability Accuracy – 0.005 mm

- → Ensures consistent performance in demanding environments
- 🌬️ Dual Side Air Port Configuration
→ Simplifies pneumatic setup and integration

📐 Technical Specifications
| Item | Value |
| Model | NPC-4RSS-310 |
| Repeatability Accuracy | ±0.005 mm |
| Number of Fingers | 3 |
| Jaw Stroke | φ10 mm |
| Mounting Hole Pitch | P.C.D 89 mm |
| Front Mounting Bolts | M5 × 6 positions |
| Body Mounting Fit (ID × Depth) | φ75 H7 × 2.5 mm |
| Operating Medium | Compressed Air |
| Operating Pressure | 0.15 – 0.6 MPa |
| Body Material | Steel (Fe) |
| Weight | 5140 g |
| Max Allowable RPM | – |
| External Gripping Force (Calc.) | 417 N @ 0.1 MPa |

🧰 Integration Benefits
- ✅ Ideal for machining, inspection, and automated handling
- ✅ Through-hole supports smart features like sensor feedback and fluid evacuation
- ✅ Long stroke enhances versatility across workpiece sizes
- ✅ CAD and PDF documentation available for download

✨ NPC-4RSS-310 – A smart, long-stroke pneumatic chuck designed for precision, flexibility, and intelligent automation.