What is Bi-Stable Rotary Solenoid ?

Bi-stable Rotary solenoid features clockwise and counterclockwise rotation every time the rotation direction is changed between +(positive) and –(negative). After power off,  the Bistable rotary solenoid stays back to its position by using the holding force of the permanent magnet. Unlike the other kind rotary solenoids that use a spring for the motion of one direction, bi-stable solenoid rotate in both directions powered by magnetic force and current pulse.

Unit Size: 39*32*16 mm

Principle of Rotary Solenoid:

Rotary solenoids are devices that produce a uniform magnetic field when an electrical current is applied to the Solenoid. They consist of a coil of copper wire, wrapped around a metal core. The metal core is mounted in the center of a disc. This has grooves on its underside to match up with slots in the body of the solenoid, and ball bearings to enable easier movement. These transducers have a higher starting force (torque) than linear solenoids, and are more resistant to shock. Actuators that are mounted on the opposite ends of a shaft or plunger provide a ratcheting action and advance or reverse position. 

Product Features: 

Rotary Angle : adjustable from 0-20 ° degree. 
Power Torque: ＞9.3N.cm    
Spring Torque: ＞0.4 N.cm
Voltage: DC24V    
Power wattage :  28 W     
Current: 0.8 A 
Resistance:  45 Ω
Lifespan Cycles: ≥1000,000 times   
Working Cycle: 1s On, 1.5s Off 

What are Rotary Solenoids used for?

Rotary solenoids were originally developed for use in defense in the past decade, but nowadays are often found in industrial machinery such as lasers and shutters, banking counting machine as they're more robust than other types of solenoids. 
Typically, rotary solenoids are used where space is limited and when long life is required (e.g., laser shutters). Their energized rotation (direction) is characterized as either clockwise or counterclockwise when viewed from the armature flange end. Most products have a spring return to bring the armature back to the home position when power is removed. 

What is DC Solenoid Tubular Type ? 

DC solenoids tubular type can custom the DC voltages between 3-24V and force up from 5 to 50N. The push and pull force can be significantly increased with limited energized time and with connection to big and high voltage. The DC solenoids tubular type is set up with a return spring inside, and are available in various construction types such as open, tubular, self-holding latching bistable and holding magnet designs. All DC solenoids tubular are available in mechanical pull L or push S designs and can be customized per specification. Common customizations like voltage , copper coil,plunger housing are mechanical as well as cable connections and cabling. 

Powerful and compact.

Smooth and flat surface.

Low consumption and reliable temperature rise

Ambient temperature within 130 degrees.

Electromagnet in working condition would produce a certain amount of heat, electricity more frequently the higher temperature, which is a normal phenomenon.

How is the tubular solenoid work? 

The tubular solenoid adopts the round tube structure design. The working principle is the same as the frame type solenoid, which makes straight linear motion. Because the housing t is made of round iron pipes, there is no need to open a mold for stamping. It only needs to be processed by CNC machine, and can be processed into different sizes and styles according to based requirement.
Due to the tubular structure design, the tubular force is maximized. It is an electromagnet with a saturated magnetic circuit. Most of the electromagnetism is converted into magnetic energy, and it has the characteristics of high power and long lifespan. The round tube electromagnet has a unique design, is more stable in performance, more reliable in operation, and easier for installation.
In addition, the round tubular housing shell provides good protection and anti-corrosion for the internal electromagnetic part, making it very suitable for use in conditions with small spaces and harsh environments.

Unit Features:

Housing Shell : Carbon steel housing enclosure with electroplated coating, high shining and smooth surface, RoHs and Reach compliance.

Plunger: φ12mm  Carbon steel material

Voltage: DC6 V

Stroke:  4 mm ( adjustable )

Force:  120 Gf

Power: 14.8 W

Current: 0.62 A

Resistance: 14.4Ω

Lifespan cycles: ≥300,000 times

Working Cycle: 0.1s On, 1s Of.

Customized  Solenoid tubular Solutions: 

Send your application requirements to jack@dr.solenoid.com 
Dimensions of the space available for the tubular solenoid.
Stroke length in mm.
Force or torque required.
Voltage available & current limit of supply

Dimension: φ 60*42 mm

Principe of Rotary Solenoid

A rotary solenoid is a device that created a rotary motion in response when an electrical current on. It consists of a copper coil, a stator, and a rotor. The copper coil generates a magnetic field when an electrical current is powered on. This magnetic field interacts with the stator and the rotor, causing the rotor to rotate around its axis.
The advantage of rotary solenoids is their ability to provide fast and precise rotational motion. In applications, high speed and accuracy are required.

Unit Features

Rotary Angle: 65° 
Powered Torque: ＞9.3N cm    
Spring Torque: ＞0.56N cm
Voltage: DC24V    
Power : 38.4W     
Current: 1.6A
Resistance: 15  Ω 
Lifespan Cycles: ≥1, 000,000 times   
Working Cycle: 1s On, 1.5s Off 

Applications

Solenoid Valve Actuation is often applied to control the opening and closing of valves in fluid control systems accordingly. 
Medical Devices:  rotary solenoids are used in various medical devices, such as syringe pumps and automated drug dispensers. 
Automotive Applications: Rotary solenoids are wildly used in various automotive machine, including transmission control, throttle control, and fuel injection systems.