Product Overview
The EP75 Magnetic Chuck is built for machine shops, OEMs, and manufacturing centers needing a reliable and efficient workholding solution for ferromagnetic materials. Using electro‑permanent technology, the chuck securely clamps workpieces using a short electric pulse - then maintains magnetic gripping even after power is off. This ensures safe, stable clamping without continuous power draw, making it ideal for milling, grinding, and CNC machining of large or heavy steel parts.
Technical Specifications
| Parameter | Specification (75 Series) |
|---|---|
| Pole Size | 75 × 75 mm |
| Holding Force per Pole | ≈ 750 kg per pole |
| Plate Thickness | 53 mm (standard) - custom thickness available |
| Magnetic Flux Depth | 18 mm |
| Operating Voltage | 220V or 380V, 50/60 Hz |
| Electrical Input | ≤ 60 A |
| Activation Time | < 1 second (pulse ON/OFF) |

Features & Industrial Applications
- Strong & Uniform Clamping: With 75 mm poles and deep 18 mm flux, EP75 provides robust, evenly distributed magnetic force - ideal for heavy steel plates, thick castings, or large workpieces.
- Efficient Multi‑Face Machining: Once clamped, workpieces can be machined on five sides without repositioning - significantly cutting setup time compared with mechanical clamps.
- Reduced Vibration & Improved Surface Finish: Uniform magnetic hold minimizes chatter and vibration during milling or grinding, extending tool life and improving final part accuracy.
- Fail‑Safe Holding: Magnetic grip remains stable even if power is interrupted, enhancing safety during long machining cycles or unattended operations.
- Flexibility for Various Workpieces: Suitable for flat plates, large castings, irregular shapes or heavy slabs - widely used in mold manufacturing, automotive part machining, heavy-duty metal fabrication, and general CNC operations.

Why Choose Our EP75 Chuck
- Bulk Order & Customization Ready: We support bulk orders, custom chuck sizes, pole patterns and control voltages - perfect for factories deploying multiple machining centers.
- Consistent Quality: Each chuck is tested for magnetic force, flux depth, and mechanical integrity before shipping - ensuring batch-to-batch consistency.
- Easy Integration: Designed to retro-fit most CNC milling or grinding tables; minimal modification required, saving engineering time and cost.
- Long Service Life & Low Maintenance: No moving mechanical parts, reduced wear and tear, minimal maintenance compared to traditional clamps - lowers total cost of ownership.

EP50 Magnetic Chuck

EP75 Magnetic Chuck
Packaging & Delivery
EP75 chucks are disassembled into manageable modules for safe transport. Magnetic modules are protected separately to prevent demagnetization; full packaging includes protective steel or magnet‑safe crates, padding, and serial‑number labeling for inventory management. For bulk orders, we can provide palletized packaging, documentation, and logistics support.
FAQ
Q1: Can EP75 be customized to fit non‑standard machine table sizes?
A1: Yes - via our custom magnetic chuck service, we can adjust chuck dimensions, pole layout, and controller voltage to match your machine specifications.
Q2: What's the lead time for a bulk order?
A2: Standard EP75 models typically ship within 4–6 weeks. For custom configurations, lead time depends on specifications and order volume.
Q3: Is continuous power required to maintain clamping?
A3: No - EP75 uses electro-permanent technology, so after activation the magnetic grip remains even if power is off.
Q4: Can it handle thin or irregular workpieces?
A4: Yes - for thinner workpieces we recommend using fewer adjacent poles to optimize clamping force and stability. For irregular shapes, supplemental ferrous soft jaws or filler blocks can help improve grip.


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