Cutting tool・tooling

NAKASEIKI

🟨 NPC-2RSS-35 – Versatile Wedge Chuck with Center Hole
Lightweight, Precise, and Sensor-Ready for High-Speed Automation
The NPC-2RSS-35 is a compact wedge-style 3-finger pneumatic chuck designed for gripping small components with flexibility and precision. Featuring a central through-hole for sensor or coolant integration, it’s ideal for robotic arms and automated systems in machining and inspection environments.

✨ Key Features
- ✅ Wedge-Type 3-Finger Design
→ Flexible gripping for various small part geometries
- ✅ Center Through-Hole – φ3.4 mm
→ Supports sensor mounting, coolant flow, or chip evacuation
- ✅ Jaw Stroke – φ5 mm per finger
→ Accommodates a wider range of small diameters
- ✅ Ultra-Lightweight – Only 290 g
→ Perfect for high-speed robotic arms and compact setups
- ✅ Repeatability – ±0.01 mm
→ Ensures consistent precision in automated operations
- ✅ Dual Side Air Ports
→ Simplifies pneumatic routing and installation

⚙️ Technical Specifications
| Item | Value |
| Model | NPC-2RSS-35 |
| Number of Fingers | 3 |
| Chuck Size | 2 inch |
| Jaw Stroke per Finger | φ5 mm |
| Clamping Force | 129 N @ 0.1 MPa |
| Operating Pressure | 0.15 – 0.6 MPa |
| Repeatability Accuracy | ±0.01 mm |
| Weight | 290 g |
| Material | Aluminum (Al) |
| Top Mounting Holes | P.C.D 42, M4 × 3 |
| Bottom Mounting Holes | M5 × 3 |
| Centering Pin Fit | φ30H7 × 2.5 mm |
| Center Through-Hole | φ3.4 mm (for sensor/coolant) |

🔧 Applications
- ✔ Integration with sensors for measurement and part detection
- ✔ Coolant flow or chip suction in machining environments
- ✔ Precision gripping of small components with robotic arms
- ✔ Ideal for lightweight, high-speed automation systems

🟨 NPC-2RSS-35 – A precision wedge chuck built for flexible gripping and sensor integration in compact, high-performance automation.