Tunnel demagnetizer (demagnetization coils, loop demagnetizers) are designed to demagnetize tools, bearings, blades, metal products, machinery parts and equipment. Tunnels are used when you want to demagnetize large quantity details (in a stream of demagnetization), heavy items, strongly magnetized part, as well as in the lines of magnetic powder-control. For the convenience of the tunnel is set on the conveyor table. Transporters are available separately and can be made at the customer's sizes.                   

To select a demagnetizing tunnel is important to know the maximum value of the field that you want to demagnetize and size details.

Model	Foto	Description
TDM (Walmag, Czech Republic)		• Due to its dimensions and demagnetizing performance it is suitable mainly for the demagnetization of large components and workpieces, e. g. moulds, bearings, spindle etc. • It is also suitable for inclusion in the conveyor-belt in automated processes. • Power: 220 V / 50 - 60 Hz • Other dimensions and power supply available on request. • Available coils with internal dimensions: 180х180 mm, 255х255 mm, 460х465 mm. Details
PL (Parker, USA)		• Parker’s portable magnetizing coils are designed for magnetic particle inspection of ferrous metal parts. The coils allow for the use of either dry powder or wet fluorescent inspection media and may be used for demagnetizing as well. • The coils are molded in a tough black polyurethane material and come equipped with a foot switch or a hand switch and 10' yellow neoprene power cord. • The sealed electrical connection box has a 2" × 5" flat base allowing the coil to stand in a vertical position.. • The inner diameters: PL-8S – 200 mm, PL-10S – 246 mm • The coils are designed for a 50% duty cycle, and are equipped with thermal overload protection. Details
ES (Portaflux, Germany)		• Due to its dimensions and demagnetizing performance it is suitable mainly for the demagnetization of large components and workpieces, e. g. moulds, bearings, spindle etc. • Available coils with internal dimensions: 150х150 mm, 250х250 mm, 350х350 mm, 450х450 mm, 550х550 mm. Details
CT (Maurer Magnetic, Switzerland)		• CT series loop demagnetizers are durable devices based on prov- en technology. The magnetic parts are drawn slowly (~0.15 m/s) through the coil opening. The parts are demagnetized through removal along he coil axis. The bigger the coil, the greater the magnetic field limit. The material must completely pass outside this field. • These devices reliably demagnetize parts up to a thickness of 20 mm. When short parts are demagnetized, the penetration depth of the field is less than 10 mm. Hard magnetic materials are not demagnetized properly by these devices. • Continuous cycle operation. • Sturdy, for shop floor use • Versatile • Particularly suitable for easily alloyed and oblong parts • Protection class - IP 54 • Available in coil with internal dimensions: 150х100 mm, 260х130 mm, 250х250 mm, 400х200 mm, 400х350 mm, 400х400 mm, 550х550 mm Details
CT-U (Maurer Magnetic, Switzerland)		• Optimal demagnetization with Maurer Degaussing® Technology • Versatile • Intuitive, secure operation • Demagnetization both for continuous operation during production and for discontinuous operation • Ready for remote control and automation – integrated control interface 24 V I/O – optional light barrier for activation • Heavy duty, for shop floor use • Power factor correction • Protection class - IP 54 • Available in coil with internal dimensions: 150х100 mm, 260х130 mm, 250х250 mm, 400х200 mm, 400х350 mm, 400х400 mm, 550х550 mm, 750х550 mm Details
DZC (PTS Josef Solnar, Czech Republic)		• Demagnetizing coils of various dimensions and performance are intended for use in NDT or production of goods made from ferromagnetic materials to decrease their residual magnetic field (demagnetize). • We would like to draw your attention to demagnetizing coils of alternating current (AC) and direct current (DC). • Two demagnetization modes are available – interrupted or constant (activation time % = 10-100). • Demagnetizing coils are produced in several versions according to the customer demand: with control panel, control box, feed device for the object which is to be demagnetized etc. To increase efficiency of demagnetization it is possible to equip the coil with control box with frequency converter of demagnetizing current. • Available in coil with internal dimensions: 40-840 mm. Details