Linear Solenoids

TUBULAR SOLENOIDS (T)

Tubular solenoids are on/of-type linear solenoids and provide fairly flat force stroke characteristics due to their tubular shape and their plunger geometry; they are well suited for applications asking for long strokes but not highest forces.

The principal characteristics of our tubular solenoids:

• stroke up to 30mm (depending on type)
• optimized for long strokes
• holding force up to 80N (in end position, energized)
• high lifetime: up to >30 million cycles
• standard versions with 13 to 38mm diameter
• pull type and push type tubular solenoids available

SUPER STROKE TUBULAR SOLENOID FOR SEMI PROPORTIONAL CONTROL (SS)

The Super-Stroke-Tubular-Solenoids are linear solenoids with a super flat characteristics of force to stroke for a quite long part of their stroke; this allows them to be used as cost effective electrical linear cylinders for many applications requiring proportional control; they can be used as a replacement for many pneumatic cylinder. Another positive feature of the Super-Stroke-Tubular-Solenoids is controllable impact force. The advantage of the Super-Stroke-Tubular-Solenoids as a miniature electrical cylinder for e.g. 12V oder 24V over linear pneumatic cylinder is the quiet operation and the easy installation because they don't need any air supply.

The principal data of our Super-Stroke-Tubular-Solenoids:

• stroke up to 35mm (depending on type)
• opmtimized for long stroke
• holding force up to 24N (in end position, energized)
• high life time: up to >30 million cycles
• low noise (quiet operation)
• controllable impact
• standard sizes from 19mm to 38mm diameter

Watch this video to learn more about how a Super-Stroke-Solenoid works.

OPEN FRAME SOLENOIDS (SK/TO/RD)

Open Frame Solenoids are the most cost-effective version of linear solenoids. Most of the open frame solenoids are comparably small, so they are considered as miniature linear solenoids. They are used in all kind of applications, which causes a wide spread of requirements regarding quantity, delivery time, quality and last but not least price. That's why we work with three production lines with different manufacturing equipment and locations. The according product families have their own profile for specific market segments.

General characteristics of Open Frame Solenoids:

• stroke up to 15mm (depending on type)
• holding force up to 30N (in end position, energized)
• life time up to 5 million cycles
• miniature versions: standard versions from 8 x 10 x 15mm
• many mechanical options, including return springs
• pull and push versions available
• rapid delivery service for RD series (4 weeks, even for custom linear solenoids)

OPEN FRAME LATCHING SOLENOIDS (SH1LC/R1L/T1L/SH2LC/T2L/TK2L)

Latching solenoids are Open Frame Solenoids with a permanent magnet which provides a self holding function in one or both endpositions with no current applied; there are latching solenoids with one coil which show the self-holding function when the plunger is pulled into the housing; with an additional return spring a sedond holding position can be achieved by the spring (plunger pushed out of the housing);  but you have to be aware that the characteristics of this solenoid are not symmetrical per direction and that also the current for pulling in and release are different. In case an identical behaviour of the solenoid in both directions is required in the application, a different construction with two coils and a central permanent magnet between those two coils is needed; the disadvantage of the two coil version of latching solenoids is the fixed stroke defined by the size and geometry of the particular latching solenoid and the general limitation of stroke (up to about 5mm).

Also latching solenoids are mostly quite small in general; Geeplus offers special miniature latching solenoids which are used e.g. in cameras as shutter actuators.

The principal data of our latching solenoids:

• stroke up to 15mm (depending on type)
• holding force up to >36N (in end position, de-energized (no current))
• bistable versions available (dual coil latching solenoids)
• zero power consumption for holding, therefore zero heat dissipation in holding position
• special versions for higher actuation force (lower holding force): Leakage Pole Type latching solenoids
• lifetime up to >5 million cycles
• miniature versions: standard dimension from 4 x 8 x 15mm, custom designs even smaller!
• many mechanical options