Manufacturer: TECHNOPLAN
Model: CEH-R series

Automatic Release Electromagnetic Holder

• For small and lightweight workpieces, if the workpiece does not release due to residual magnetism when relying only on its own weight, this model is effective.
• A pin at the center of the holding surface automatically releases the workpiece from residual magnetic attraction by spring pressure.

Duty Cycle: Continuous 100% ED

※ The maximum holding force is the maximum value obtained with full-surface contact using an SS400 steel test plate, 10 mm thick, with a ground-finished surface.

Common Bottom Surface

Model	Dimensions (mm)	Maximum Holding Force (N)	Mounting Holes (mm)		Voltage (V)	Current (A)	Weight (g)
			Mounting Screw Hole	Anti-Rotation Hole
CEH-20R	φ20 × 25	4.9 (0.5 kgf)	M4 × 0.8 Depth 5	φ2.1 Depth 2.5	DC24	0.04	35
CEH-30R	φ30 × 25	29 (3 kgf)	M6 × 1.0 Depth 12	φ4 Depth 2		0.085	100
CEH-40R	φ40 × 25	108 (11 kgf)		φ4 Depth 2.5		0.13	160

Operating Conditions for Electromagnetic Holders

[Allowable Temperature]
Use the holder at an ambient temperature of 40°C or less and with the workpiece temperature at 50°C or less. If you plan to use it in a higher-temperature environment, please consult us in advance.

[Holding Force]
The holding force varies depending on conditions such as the material, shape, surface finish, and plate thickness of the workpiece. In addition, if full-surface contact is not possible, the workpiece cannot be held at its center of gravity, or strong impacts occur during transport, select a model with an appropriate safety margin. Please consult us in advance regarding specific operating conditions.

[Waterproofing / Rust Prevention]
The electromagnetic holder is not waterproof. Furthermore, the holding surface does not have a rust-prevention treatment, so it cannot be used in environments such as clean rooms. However, custom specifications suitable for such environments are also available. Please consult us for details.

[Residual Magnetic Attraction]
Even after switching the power OFF, a small amount of residual magnetic holding force remains. If the mass of the held object exceeds this residual magnetic force, it will not cause a problem. However, in other cases, models other than the automatic release type (CEH-R) require a demagnetizing rectifier (TPRC-R) equipped with a reverse-excitation magnetic circuit.