Cutting tool・tooling

NAKASEIKI

🔩 NPC-4FS-33 – Precision Pneumatic Chuck for Machining & Inspection
Enhanced Stroke. Superior Accuracy. Built for Demanding Applications.
The NPC-4FS-33 is a wedge-type pneumatic chuck engineered for machining, part handling, and precision measurement. With a 3 mm jaw stroke and 2 μm repeatability, it offers greater flexibility while maintaining ultra-high accuracy. Ideal for setups requiring both precision and slightly extended gripping range.

⚙️ Key Features
- 🧩 Wedge Mechanism – 4 inch / 3 fingers
→ Delivers synchronized and stable clamping
- 📏 Jaw Stroke – φ3 mm
→ Accommodates slightly larger or more variable components
- 🎯 Repeatability Accuracy – 0.002 mm (2 μm)
→ Perfect for precision inspection and fine machining
- 🌬️ Dual Side Air Port Configuration
→ Simplifies pneumatic setup and integration

📐 Technical Specifications
| Item | Value |
| Model | NPC-4FS-33 |
| Repeatability Accuracy | ±0.002 mm |
| Number of Fingers | 3 |
| Jaw Stroke | φ3 mm |
| Mounting Hole Pitch | P.C.D 89 mm |
| Front Mounting Bolts | M5 × 6 positions |
| Body Mounting Fit (ID × Depth) | φ75 H7 × 2 mm |
| Operating Medium | Compressed Air |
| Operating Pressure | 0.15 – 0.6 MPa |
| Body Material | Steel (Fe) |
| Weight | 2880 g |
| Max Allowable RPM | – |
| External Gripping Force (Calc.) | 1267 N @ 0.1 MPa |

🧰 Integration Benefits
- ✅ Ideal for machining, transport, and precision measurement
- ✅ Extended jaw stroke for added versatility
- ✅ High repeatability ensures consistent performance
- ✅ Durable steel body for industrial reliability
- ✅ CAD and PDF documentation available for download

✨ NPC-4FS-33 – Precision meets flexibility in this robust pneumatic chuck designed for high-performance industrial environments.