Cutting tool・tooling

NAKASEIKI

🔩 NPC-4RS-310 – Long-Stroke Pneumatic Chuck for Variable-Diameter Workpieces
Extended Stroke. High Versatility. Reliable Performance.
The NPC-4RS-310 is a wedge-type pneumatic chuck designed for flexible clamping across a wide range of workpiece diameters. With a φ10 mm jaw stroke, it offers excellent adaptability for machining, inspection, and handling tasks. Its robust steel construction and precise repeatability make it ideal for general-purpose industrial use.

⚙️ Key Features
- 🧩 Wedge Mechanism – 4 inch / 3 fingers
→ Provides synchronized gripping with stable force
- 📏 Long Jaw Stroke – φ10 mm
→ Accommodates workpieces with varying diameters, enhancing versatility
- 🎯 Repeatability Accuracy – 0.005 mm
→ Ensures consistent clamping performance across applications
- 🌬️ Dual Side Air Port Configuration
→ Simplifies pneumatic integration and setup

📐 Technical Specifications
| Item | Value |
| Model | NPC-4RS-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 | 4990 g |
| Max Allowable RPM | – |
| External Gripping Force (Calc.) | 417 N @ 0.1 MPa |

🧰 Integration Benefits
- ✅ Ideal for general-purpose clamping of variable-diameter components
- ✅ Long stroke enhances flexibility in machining and inspection setups
- ✅ Durable steel body for industrial reliability
- ✅ CAD and PDF documentation available for download

✨ NPC-4RS-310 – A versatile pneumatic chuck with extended stroke, built for adaptable and precise clamping in dynamic production environments.