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AS 0726 C Enhancing Efficiency with DC Keep Solenoid Technology: A Comprehensive Guide for your project solution

What is a keep solenoid ?

Keep Solenoids are fixed with permanent magnet embedded on the magnetic circuit. Plunger is pulled by instantaneous current and the pull continues after the current is shut off. Plunger is released by instantaneous reverse current. Good for power saving.

How does a keep solenoid work ?

A keep solenoid is a power-saving DC powered solenoid combining the magnetic circuit of an ordinary DC solenoid with permanent magnets inside. The plunger is pulled by an instantaneous application of reverse voltage, held there even if the voltage is turned off, and released by an instantaneous application of reverse voltage.

The type of Pull, Hold and Release Mechanism Structure

PullType Keep Solenoid
At application of voltage, the plunger is pulled in by the combined magnetomotive force of the built-in permanent magnet and the solenoid coil.

B. HoldType Keep Solenoid
Hold type Solenoid is the plunger is held by the magnetomotive force of the built-in permanent magnet only. The hold type position can be fix in the one side or both side depend on real application.

C. Release type of keep solenoid
The plunger is released by the reverse magnetomotive force of the solenoid coil canceling the magnetomotive force of the built-in permanent magnet.

Solenoid Coil Types of Keep Solenoid

The keep solenoid is built in either in a single coil type or double coil type.

. Single Solenoid coil type

This type of solenoid performs pull and re- lease with only one coil, so that the polarity of the coil must be reversed at switching between pull and release. When the pull force is given priority and the power exceeds the rated power, the releasing voltage must be lowered. Or if the rated voltage + 10% is used, a resistance must be placed in series in the release circuit (This resistance will be specified in the test report on the pilot sample (s). )

Double coil type

This type of solenoid, having a pull coil and release coil, is simple in circuit design.
For the double coil type, please specify" Plus common" or " minus common" for its configuration.

Compared with the single coil type of the same capacity, the pull force of this type is a little smaller because of the smaller pull coil space designed to provide space for the release coil.

product details

Product Description

Brand	Dr. Solenoid	Model Number	AS 0726 C
Rated Voltage (V)	DC 12V 18V and 24V	Rated Power(W)	10.2---13 W
Work Model	Pull Push Open Frame Type	Holding Force (N)	120 GF-250 GF
Stroke(mm)	3-5 MM Customized	Reset Time(s)	1 S ON， 3 S OFF
Service Life	200 Thousand Times	Certification	CE,ROHS,ISO9001,
Material	Superior Magnet Iron	Lead Wire Length(mm)	200 MM
Install Style	Screw	Tolerance of Dimension	+/- 0.1 MM
Water-proof	None	Insulation Class	B
Hi-Pot Test	AC 600V 50/60Hz 2s	Non-excitation Holding Force	0
Working Temperature	-10°C-100°C	Duty Cycle	1-100%
Thread Depth(mm)	/	Payment Term	TT, or LC At Sight
Sample Order	Yes	Warranty	1 Year
MOQ	1000 pcs	Supply Ability	5000 pcs per Week
Delivery Time	30 Days	Port of Loading	shenzhen

Unit Features:

Unit Dimension: 26.6 * 18 * 18

Housing Material: Carbon steel material，Zinc Coating with Anti-corrosion feature, Smooth Surface and RoHS compliance.

Stroke：3-5 MM

keep Force：120-250 GF

Power : 10.2--13 W

Voltage : DC 9V， 12V, 16V or 18V

Current : 0.8 A- 1 A

Resistance: 15 -20 Ohm

Lifespan：300，000 Cycles

Working Duty：0.3 S on, 3 S Off.

Option specification could be adjustable according to Customer project requirement.

Keep Solenoid application

The keep solenoid, which is ａ DC solenoid designed to hold the plunger without application of[voltage, is best suited for mechanisms where the plunger is to be pulled by one pulse of voltage[application, held for some time or long time without voltage application and released by another pulse.

Pinch roller pressing and brake mechanism of video cassette, shut- off valve of gas and other fluids, magnetic lock and other applications requiring holding or locking.

Applications to be avoided

The keep solenoid is not suited for mechanisms that do not require holding or that use the DC solenoid hundreds of cycles per minute under nearly continuous application of voltage.

Our Services

Customized Magnetic Keep Solenoid Solutions and specification

Send your application requirements to jack@drsolenoid.com

Dimensions of the space available for the solenoid.

Stroke length in mm.

Force or torque required.

Voltage available & current limit of supply

Duty cycle – specify max. on time and min. off time for 1 cycle.

Temperature of working environment.