Electro-permanent circular magnetic chuck Circu EP
Electro-permanent circular magnetic chuck Circu EP
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Product description
Detailed description:
The Circu EP is an electro-permanent magnetic chuck designed for installation on rotary tables of vertical grinders for clamping of tool and hardened steels and for heavy duty turning operations. The radial layout of the individual poles is suitable for work with circular or cylindrical shapes such as bearing rings, circular rings, bushings, etc. Using the control unit, the holding force can be controlled in several steps and fast and efficient demagnetization of workpieces can be performed. Thanks to the electro-permanent technology used there is no need for permanent connection to the mains. This results in high efficiency in operation and this also ensures the highest possible clamping accuracy.
Important parameters:
- Technology: Electro-permanent
- Poles: Radial
- Regrinding limit: 8 mm
- Guarantee: 2 years
Additional information:
High holding force for clamping during the ultimate heavy duty machining, drilling, and turning operations. Available with pole plate equipped with T-slots for mounting pole extensions. The control unit can be programmed for different types of material to achieve maximum strength and effective demagnetization after machining. At the same time, it is possible to adapt the force to clamp even thinner parts without any deformation. The chuck can be connected via the slip ring in the machine tool spindle, or through the connector located directly on the magnetic chuck.
Use:
- circular grinding, roughing, turning
| Catalog number | D (mm) | H (mm) | Weight (kg) | Voltage (V) |
|---|---|---|---|---|
| Circu EP 400 | 400 | 90 | 76 | 170/340 |
| Circu EP 500 | 500 | 90 | 120 | 170/340 |
| Circu EP 600 | 600 | 100 | 195 | 170/340 |
| Circu EP 700 | 700 | 100 | 265 | 170/340 |
| Circu EP 800 | 800 | 100 | 365 | 170/340 |
| Circu EP 1000 | 1000 | 100 | 550 | 170/340 |
| Circu EP 1250 | 1250 | 123 | 990 | 170/340 |
| Circu EP 1500 | 1500 | 120 | 1550 | 170/340 |
Documents for Download
Electro-permanent circular chuck Circu EP for safe and economical rotary table machining
Concentric pole chucking without heating for maximum dimensional accuracy
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Why Walmag?
We've been manufacturingmagnets in Czechia since 1991
We manufactured90,000+ magnets
We service magnetsdirectly in Kroměříž
Our magnets are in morethan 61 countries worldwide
Frequently Asked Questions (FAQ)
Are your products made in the Czech Republic?
Yes, the entire process – from in-house development through design, production, to final assembly and testing – takes place directly in our plant in Kroměříž. This gives us full control over quality and allows us to flexibly tailor products to specific customer requirements.
What is the difference between permanent, electromagnetic, and electro-permanent systems?
Permanent Magnets: Operate without electricity, activated mechanically by a lever. They are safe, mobile, and maintenance-free.
Electromagnets: Generate a magnetic field using coils powered by mains electricity. They possess immense strength, can clamp uneven surfaces, and allow force regulation, but require a constant power supply and backup sources.
Electro-permanent Magnets: Combine the advantages of both systems. They only require electric current for a fraction of a second for activation (magnetization) and deactivation. During operation itself, they do not need current, making them extremely safe even in the event of a power outage and preventing overheating.
Can your lifting magnets also be used for handling materials at high temperatures?
Conventional permanent magnets lose their strength at temperatures above 80 °C. However, for operations with higher temperatures, we offer special series (e.g. HOT lifting magnets) that can safely handle materials with temperatures up to 180 °C.
Why is it necessary to use a demagnetizer after machining?
Ferromagnetic materials retain residual magnetism after being exposed to a magnetic field (e.g., when clamped onto a magnetic chuck). This causes metal chips and dust to stick to the workpiece, which can damage tools or complicate further processing (e.g., painting, welding). Demagnetizers reliably remove this residual magnetism.
Do you provide service and revisions for your products?
Yes, for all our technologies, including older BUX, Walker, and Pilana brand products, we provide complete warranty and post-warranty service, repairs, overhauls, and original spare parts. We also perform mandatory periodic certifications, inspections, and load capacity testing of lifting magnets.
Do you also offer staff training?
Yes. As part of the delivery of our magnetic applications and large systems, we provide professional operator training to ensure that working with magnets is as efficient and safe as possible.
How can I contact you if I am interested in a tailored solution?
You can contact us by e-mail at info@walmag.cz, by phone at +420 573 341 641, or directly contact our regional sales managers for the Czech Republic and abroad, whose contact details can be found in the Contact section of our website.
How is heavy goods (e.g. clamping plates) delivered?
Due to the higher weight of our products, we cooperate with specialized pallet and parcel carriers who ensure safe handling.
How is the safety of lifting magnets purchased from the e-shop guaranteed?
All lifting magnets comply with the strict ČSN EN 13155 standard and operate with a safety factor of 3+. This means that in a pull-off test (the so-called Air Gap test, which simulates a real air gap/dirt in operation), the magnet can lift more than three times its declared maximum load capacity.
Where can I find user manuals and technical documentation?
Technical sheets, catalogues, and operating instructions for individual products are available either on the product's page or upon request.