Part 1: What is a rotary solenoid actuator ?

The rotary solenoid actuator is similar to the motor, but the difference between is that the motor is can rotate 360 degree in one direction, while the rotating rotary solenoid actuator cannot rotate 360 degree but can rotate to a fixed angle. After the power is off, it is reset by its own spring, which is considered to complete an action. It can rotate within a fixed angle, so it is also called a rotating solenoid actuator or an angle solenoid.  As for the rotation direction, it can be made into two types: clockwise and counterclockwise for the project need.

Part 2: The structure of rotary solenoid  

The working principle of the rotating solenoid is based on the principle of electromagnetic attraction. It adopts an inclined surface structure. When the power is turned on, the inclined surface is used to make it rotate at an angle and output torque without axial displacement. When the solenoid coil is energized, the iron core and the armature are magnetized and become two magnets with opposite polarities, and electromagnetic attraction is generated between them. When the attraction is greater than the reaction force of the spring, the armature begins to move toward the iron core. When the current of solenoid coil is less than a certain value or the power supply is interrupted, the electromagnetic attraction is less than the reaction force of the spring, and the armature will return to the original  position under the action of the reaction force.

Part 3: Working principle

When the solenoid coil is energized, the core and the armature are magnetized and become two magnets with opposite polarities, and electromagnetic attraction is generated between them. When the attraction is greater than the reaction force of the spring, the armature begins to move toward the core. When the current in the solenoid coil is less than a certain value or the power supply is interrupted, the electromagnetic attraction is less than the reaction force of the spring, and the armature will return to the original position. The rotating electromagnet is an electrical appliance that uses the electromagnetic attraction generated by the current-carrying core coil to manipulate the mechanical device to complete the expected action. It is an electromagnetic element that converts electrical energy into mechanical energy. There is no axial displacement when rotating after power is turned on, and the rotation angle can reach 90. It can also be customized to 15°, 30°, 45°, 60°, 75°, 90° or other degrees, etc., using CNC-processed spiral surfaces to make it smooth and unstuck without axial displacement when rotating. The working principle of the rotating electromagnet is based on the principle of electromagnetic attraction. It adopts an inclined surface structure.  

About the bistable rotary solenoid ?

The Bistable Rotary Solenoid is protected by a solid carbon steel housing. The insulation class is IP50; an increase to IP65 is possible using additional housing. The nominal voltage is 12, 18 or 24 Volt; the torque is 1 Ncm to 1 Nm. The end positions are fixed with holding torque of up to 1 Nm. Depending on the application, a rotation angle of up to 180° can be realized. Hall sensors can be used as an option to check whether the magnet has reached the start or end position.

Working Principle  

The bistable rotary solenoids are extremely fast switching rotating magnets for the optimum performance of demanding sorting and actuating tasks. With a speed of less than 10 ms, letters, banknotes or parcels can be sorted extremely fast and in the correct position. The high rotational speed is achieved by reversing the polarity of the rotary solenoid. The safe end position is realized by a permanent magnet. The so called "Polarised Rotary Solenoids" (PDM) are used in automation and logistcs as a cost-saving alternative to pneumatics or motor solutions due to their energy efficiency.

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. 

About the D Frame Type Solenoid 

The D type open frame solenoid is the simplest solenoid device consisting of an open iron frame, an over molded or taped copper coil, and a movable plunger in the center of the copper coil.  D type Open frame solenoids are the most economical of all the solenoid types, and are typically selected for applications in which extremely long life and precise positioning are not critical.

Unit Dimension- 38 x 25 x 20 mm / 1.58 x 1.05 x 0.75 inch(L*W*H); Voltage: 12V; 

About this Car headlight Solenoid:

This headlight kit, advanced multi surface reflector produces more luminous beam, durable die cast aluminum housing surface reflector for more reliable quality and improved beam output, Ii is easy install for all replacement.  
Unit Feature- A headlight solenoid is used to control the high and low beam to the headlights in the Car. Its main purpose is to let the headlight switch between low and high beam, which can help prolong its lifespan. The car head light solenoid has Stable Performance and 300 000 life cycles, High Temperature resistance. Maintains the open / closed state of the solenoid with short-time   energization, and achieves low power consumption by DC power-operated 
D type frame Shape: Rectangular, Voltage: DC 12V , Wiring Included:  
Headlight Type: Assembly, Grade Type: Regular
Universal Or Specific Fit: Universal, Bulb Type: Clear, Rectangular Halogen

Design- frame type, plunger spring return, Low friction to ensure high efficiency and prolong life.
Advantages- this Car head light Solenoid electromagnet has simple structure, small volume, high adsorption force. Quality copper coil inside, has high temperature .
Resistance and stable performance and insulation, high electrical conductivity. 

Dimension: 35 x 16 x 14 mm/ 1.45 x 0.67 x 058 inch (L*W*H); Voltage: 12 V; Force: 2N; Current:1.2 A; Stroke: 4-6 mm/ 0.79 inch; Model: AS 0735 -12 V.

Unit Features:

The permanent magnet solenoids (also known as magnetic latching or self holding solenoids) is a product line of linear open frame type solenoids that utilize the advantages of a high performance permanent magnet. The principle of operation is similar to all linear solenoids. When the coil is energized, the plunger moves toward the pole side. The advantage of the latching solenoid is that once energized and plunger movement has occurred, the plunger will remain in the energized position without any further electrical power input.  This "holding" feature is accomplished because the permanent magnet creates a magnetic latching field that maintains the plunger in the closed or energized

Dvantages

the latching solenoids can select the long or the short stroke along with the force that match the application of the machine or your project requirement. 
The housing is made of high carbon steel with Zinc coating with smooth surface and high temperature resistance. 
Zero power consumption and Power dissipation (heat) is zero in holding position
 No radiated electrical noise and End position can be held without power
• Holding force up to 36N (in end position, no current)
• Stroke up to 6 to 15mm (depending on type you need )
• Bistable versions (dual coil) available for selection. 
• Special version available for higher actuation force (lower holding force)
• Life expectancy up to >3 million cycles
 
NOTE: 

Because each application of project or the machine is different, requiring varying levels of resistance or the force, a weak or strong spring is not go with these parts. Our engineers recommend a simple spring kit to choose the correct spring for each application. We can include them in volume if we have the specifications that you need. 

Unit  Dimension : - 38 x 22.5 x 12 mm / 1.5 x 0.9 x 0.5 inch(L*W*H); Voltage: 12V; Force: 42N; Current: 1A;  Stroke : 10mm / 0.39 inch;  

Unit Feature:
C type push solenoid has a push bar attached to the curved head of the plunger and when the plunger is pulled into the solenoid the push bar extends out the opposite end.The C Type Push solenoids have a return spring in place to return the plunger to a fixed position when no other force is applied to the plunger.The force applied by the return spring is included in the pull force – stroke relationship graph to the right.

It is a stable performance and 300000 lifespan cycles for base application.

Maintains the open / closed state of the solenoid with short-time   energization, and achieves low power consumption by using a permanent magnet.

Power Source :  DC power-operated 12V   

Push pull type, linear motion, plunger return, DC solenoid electromagnet.

Solenoids of this category work externally through pulling pushing in plunger.

When energized, doing work through pulling pushing in plunger joined object.

DC Frame type Solenoid Electromagnet mainly used in vending machines, transport equipment, office facility household appliance, mechanical, etc.

Metal Housing:  Carbon Steel housing, It is electroplated with Zinc or Nickle coating. It is undergone 96 hours salt spray testing and it is anticorrosion with high temperature standard and compliance with RoHS. 
Metal Plunger:  Carbon Steel material, It is electroplated with Zinc coating with smooth surface. It is passed 96 hours salt spray testing and it is anticorrosion and compliance with RoHS Standard. 

Heat dissipation

The feature of the frame type solenoid is easier to dissipate compared with the round type, tubular type and the suction cup electromagnet. Most of its bobbin copper coils are exposed to the outside, which can discharge the heat in time to make sure smoothness in work, without jamming, stopping or burning situation.. Therefore, the frame type solenoid is popular in good quality and has good heat dissipation capacity. 

Advantages

AS 1031 Solenoid is a miniature push-pull electromagnet mass-produced by Dr. Solenoid at 2020.  The frame type electromagnet of AS 1031 can be made into a push electromagnet and a pull solenoid as per your specification. The product has small size, easy installation, low cost and is widely used in the market for automation equipment, automatic toys, medical mailboxes and lockers, etc.

As 1037 of Push pull Type Solenoid, it is linear motion, frame type, plunger spring return and low power consumption with reliable temperature rise. 

Unit Advantage: -  D frame Push Pull type Solenoid electromagnet has simple structure, small volume production, high adsorption force. Pure copper coil with good conduction and insulation inside. It has high temperature resistance features. 

D Frame type Solenoid Application:  DC 24V solenoid electromagnet are widely used in vending machines, transport equipment, office equipment,  facility household appliance, mechanical, etc  game machine, Sorting machine, auto door lock, etc.it is simple design and easy installation and operation. 

Lifespan: 

The unit lifespan can reach 200,000 cycles times, which can meet the long-term use of the machine and does not need to be replaced frequently. It bringing great convenience to the machine in term of service .  During product development period, the specification and  the lifespan service has been validation by our R & D team.  Therefore, we can make sure you in  safety, quality and production efficiency for AS 1037 model. 

DC Solenoid is a linear push pull type solenoid features D or C type frame structure design, Stroke Force as well as the plunger are adjustable accordingly. It is widely application in medical device, automotive equipment and smart household appliance. 

AS for the DC source power, we have DC 6 V, 12V, 24 V and 36 V standard voltage optional. Custom solutions for changing the size of Frame, stroke, the copper coil and the duty cycle, mounted screw hole, value package available. 

Unit Features: 

Housing Steel:  Carbon steel with Zinc Coating, Smooth surface, Rohs Compliance 
Plunger: φ10 mm, Carbon steel with Zinc Coating Anticorrosion., Meet Rohs compliance. 
Voltage: DC24V 
Stroke: 0-10mm, we can change the distance accordingly. 
Force: 2-15N adjustable , 
Power Wattage: 9 W 
Current: 0.75A
Resistance: 16 Ω
Life: ≥200,000 times, has been validation during product development
Working Cycle: 1s On, 1s Off
Temperature Rise : 65 degrees Cel.

Our R & D Team: 

Our R & D team offer one-stop solenoid & Solenoid Valves solutions according to Customer specification.  we consider the using condition to select the best material, make the engineering drawings for dimension and confirmation before creating the working sampling; trying our best to minimize the time waste and accelerate the timetable of launching new product for you. For more details, Pls contact our sales expert today.