AS 0840 Advantage: It has the advantages of simple structure, low power consumption, using magnetic body as frame housing, copper coil, and unique characteristics of long stroke. It is a linear motion solenoid electromagnet with compact, simple structure, easy installation and connection, as well convenient for maintenance. The D Frame type of solenoid works by pulling in (pulling in) the plunger or pushing out the sliding rod. The core diameter ranges is made from 2mm to 20mm. 

Unit Features: 

AS 0840 Dimensions- 41 x 15 x 20 mm / 1.61 x 0.59 x 0.79 inch (L*W*H); Voltage: 24V;  
Frame Housing Material:  Carbon Steel.  It is electroplated with Zinc or Nickle coating. It is passed 96 hours salt spray testing and it is anti-corrosion. 
Plunger Material:  Carbon Steel.  It is electroplated with Zinc or Nickle coating. It is passed 96 hours salt spray testing and it is anti-corrosion and compliance with RoHS . 
Copper Coils:  it is made with pure copper wire. Character: Good conduction and insulation, High temperature resistance. 
Voltage source:  Power by DC24V 
Stroke: 4-10mm ( Adjustable ) Material : Carbon Steel with Zinc coating
Force: 1.5-8N (Adjustable to your requirement)
Power wattage : . 24 W 
Current: 1 A
Resistance: 10Ω 
Lifespan: ≥200,000 times 
Working Cycle: 0.3 s On, 5 s Off

Our team: 

Our Product range: electromagnets, solenoid; solenoid valves, solenoid pumps, tubular Solenoid and sucker solenoid and other solenoid valve products meet the requirements of IEC, EN, and UL standards, and some of the models have passed CE and CB certification. Our part processes, quality control, and product assembling are strictly operated according to the ISO 2015 standard system. Our R & D team with more than 17 years of experience in design, manufacturing and production that meet your various requirements   Due to the electromagnets are non-standard products, you are welcome to send us your detailed requirement and specification for your own specification design. We will tailor the solenoid you need accordingly. 

As 4020 DC 12V  Solenoid is  the most cost effective version of linear solenoids. It is being used in many versions in all kind of applications. These is a essentially either PULL or PUSH type for the action. Custom option for the unit dimension, voltage and stroke (linear distance traveled) or new products can be tailor made. These can be either customized to suit individual specifications of Pull/ Push force.

Unit Features as blow 

Product Dimension： 20.5 * 12* 11 mm / 0.84 * 0.47 * 0.43 Inches
plunger：φ 4 mm
Voltage: DC12V
Stroke: 0-5mm
Force: 0.2-2N
Power : 13W
Current: 1.09A
Resistance: 11Ω
Working cycle: 0.5s on, 2s off
Yoke/ Housing Material:  Electrolytic zinc-coated carbon steel sheets *(some are with haxavalent chromium free zinc plating.), smooth surface with RoHS compliance,  Anti-corrosion. 
Plunger :  Fluoroplastic coating (open frame solenoids), Zinc or Nickel plating
lifespan:  DC solenoid shall operate normally with 300,000 cycles after tested in a specified intermittent operation cycles for a required number of times under a specific voltage, load, and stroke requirements.

Please consult with us for more special/ customized design requirements for functions (e.g. push type, double-coil type, mold-coil type) or structures (e.g. terminal type, lead-wire type, connectors, thermal fuses, diodes).

Unit Size: Diameter 23 * 48 mm 

Application of the copper coils

The magnet Copper coils are wildly used by industries throughout the world for heating (induction) and cooling, Radio-Frequency (RF), and many more purpose. Custom copper coils are commonly utilized within RF or RF-Match applications where copper tubing and copper wire are required to transmit liquids, air, or other media to cool or help induce energy of various types of equipment.

Product Features:

1 Magnet cooper Wire ( 0.7mm 10m Copper Wire) , Coil Winding for Transformer Inductance Coil Inductor.
2 It is made of pure copper inside, with insulating paint and polyester patent leather on the surface.
3 It is easy to use and easy to understand.
4 It has high smoothness and good color.
5It has high temperature resistance, good hardness and is not easy to break.
6Specifications;  .Work Temperature:-25℃~ 185℃  Work Humidity:5%~95%RH

About Our Service;

Dr Solenoid is your trusted source for custom magnet copper coils. We value all our customers and will work with you to create custom copper coils that are designed to your project’s exact specifications.  Our Short-Production Run(s) and test fit prototyping custom copper coils are created with the materials required from your coil design information. Therefore, our custom copper coils are created using various form of copper, such as copper tube, copper rods/bars and copper wires AWG 2-42. When you work with HBR, you can count on receiving exceptional customer support both during the quoting process and after sale service. 

Key function of starter solenoid:

No car works without the initial electrical jolt to crank the engine over. To get it delivered, you need a starter solenoid, a critical electromagnet that starts the chain reaction leading to internal combustion. When your car doesn't start, it may be that you need a replacement starter solenoid. Dr solenoid can help you find the best starter and starter system for your vehicle's make and model in no time at all.

The feature of starter solenoid:

Unit Dimension:  84 mm * 55 mm * 65 mm / 3.3 * 2.16*2.56 Inch 
The starter solenoid relay is made of high-quality copper coil inside, and the surface of the external contact is galvanized, which has strong anti-corrosion and aging resistance with durability, and the solenoid valve gasket has good heat dissipation.

4-terminal design, battery terminal 5/16-24,motor terminal 5/16-24,switch terminal 10-32 post, relay terminal 10-32 post.12 volts. Also with grounded base, ensure the stability and safety of the relay in the working process, improve the anti-interference ability of each electronic component.

Starter solenoids are vital components for automobiles. In short, starter solenoids are electromagnets that actuate or engage the starter motor for your vehicle's internal combustion engine. Starter solenoids are attached directly to starter motors, and they control starter motors throughout vehicle operations.

Modern vehicles of all makes and models use starter solenoids to move the first or starter pinions so they properly engage with engine ring gears. Without  the starter solenoid, your vehicle would not start up properly when you turned the key in your ignition.

Working Principle of a Starter Solenoid:  
 
The role of automotive solenoid relays is very important, because once the solenoid  relay fails, it will cause the car to be immobile. Therefore, some matters need to be paid attention to when using A solenoid relays, such as changes in ambient temperature and heating of the relay itself will cause changes in the coil resistance value, thereby affecting the working stability of the relay.  

Unit Features: 
Unit Dimension: 86 mm * 65 mm * 60 mm/ 3.38 * 2.56 * 2.36 Inch 
4-pole battery isolation solenoid valve: 
Voltage 12V DC; 
Resistance: 14Ω;  
Rating Capacity: 10.2W; 
Maximum transient flash current: 300Amp; but Continuous Working Current recommend under 150 Amp,Bracket: Straight; Bracket mounting: 
Holes 5/16 x 19/32 2-13/64 on center
4 Terminal Max 300A 12 Volt With 2 Copper Point Continuous Duty Solenoid Relay , The electromagnetic relay adopts high-quality components, Coil Roll is using 180℃ copper wire, unit housing is Nickel-Plating, Meet Environmental Plating Requirement.  
Replaces Part Number: This Continuous Duty Solenoid Relay Replacement For 70-111224, 3635820, 1114208, 1114218, 1114223, 1114534, 1114547 

When using A SOLENOID relays:
First, do not use relays with other power source, because automotive relays are driven by batteries, and the power supply voltage will decrease when a large load is connected, affecting the service life of the relay. 
Secondly, it is necessary to pay attention to the insulation level, because the coil will apply the maximum continuous voltage, which not only affects the stability of the relay operation, but also is limited by the insulation performance of the enameled wire. 
Finally, do not exceed the rated relay, because the rated voltage is the guarantee of the reliability of the relay operation. If the coil voltage exceeds the maximum operating voltage, it will cause the coil insulation to drop, short circuit between turns, and burn out.

In short, automotive solenoid relays play a vital key in automotive circuits, and some precautions need to be taken when using a solenoid relay and extend the solenoid relay service life.

The function of a starter solenoid:

A starter solenoid serves the crucial purpose of connecting the battery to the starter the motor in an automotive electrical system. When the ignition key is turned to the start position, an electrical signal is sent to the solenoid. The solenoid then mechanically engages the starter motor's drive gear with the engine's flywheel and electrically closes the contacts to allow a large current to flow from the battery to the starter motor, initiating the engine's cranking process. This ensures a reliable and controlled transfer of electrical power to start the engine.

Unit Features: 
Solve the problem of farm tractor starting, help the farm tractor to return to normal work, replace this starter solenoid relay, can solve the problem of the drive has been rotating or can not start after the engine starts

Unit Dimension: 82 mm * 74 mm* 80 mm/ 3.23 *2.91 *3.15 Inches   
Voltage: 12V, Number of Terminals: 3, Inrush Current :200A
Fitting: This Starter Solenoid Switch Relay fits for Golf Cart. Please check the product details carefully before purchasing.
Package Included : 1x Starter Relay Solenoid, 4 x Nuts, 4 x Washers. Do not to over tighten the nut/terminal during installation.

REPLACE PART NUMBER:  8N11450, SFD6025, 8N-11450, SW218, SW355, 10-FO218-12V, 7-1023-12V, 240-14008. Used for Ford starters on models 2N 8N & 9N farm tractor applications
PREMIUM QUALITY:- Starter solenoid relay is made of high-quality carbon steel housing and pure copper coil inside, which is durable, rust resistant and has 100,000 life cycles. Easy to install and stable performance.
 
Easy to install. Just a few minutes. No cutting, no drilling, no tool requirements. Replacing old or broken solenoid relay can improve the operation of the machine

Working Principle of Liquid Control Solenoid Valve

Solenoid valve is converted electric energy into mechanical energy. The main purpose of liquid control solenoid valve is to regulate the movement of liquid and eradicate the need for an engineer to manually control the valve, which will save the application both time and money.

This liquid solenoid valve consists of two parts: a solenoid and the valve. The valve system is made up of two or more orifices/openings, whereas, the solenoid is home to several important parts, including a coil, sleeve assembly and plunger.
This solenoid valve works by current through solenoid copper coil to open or close the valve orifice. When the coil within the solenoid is power on, the plunger is lifted or lowered to open or close the orifice. This is what in turn controls flow, regulating the movement of liquid. 

As 2542 Flow liquid control solenoid valve features: 
       
Unit housing: high quality carbon steel housing case, Teflon coating and smooth surface, and RoHs compliance. 
2 Ways DC 12’v Solenoid valve
Common DC voltages:  DC 12 V ,  Adjustable DC voltages available on request.
Power: 5.8 W
Current: 0.48 A
DC Resistance: 25 Ω
Temperature Rise: max 65 degrees . Cel. 
Precision Flow liquid control: 0.2s On, 0.3 s Off 1.67 G liquid. 
Fixing, plunger coupling, thrust rod options and lead length can all be customized.
Stable Performance with 300,000 lifespan service

Advantages of this medical solenoid valve fast responding time

low power consumption
low and high temperature workable 
it can be installed vertically or horizontally 
compatible with both DC and AC voltage 
Precision liquid flow control 
Stable Performance

Disadvantages of this medical solenoid valve

Every valve has its own disadvantages. Due to human errors, solenoid valve can experience problem when the voltage becomes too less or too more due to this it makes the electromagnetic field strengthen or weaken.
1.Solenoid valve is sensitive to voltage
2.The valve can partly close if magnetic field isn’t set up correctly
3.The coil need to be replaced over the lifetime of the valve
4.Valve fluid can be affected by the flow. 

This C type Solenoid electromagnet has simple structure, small volume, high adsorption force. Built in Quality copper coil inside, has good temperature stability and insulation, high electrical conductivity also. 

The mini push-pull solenoids incorporate an intelligent magnetic concept that allows a very high holding force at a comparably low power input. This makes the solenoid ideally suited for heavy duty applications, and those demanding for low power consumption or low heat dissipation project

Housing: smooth surface carbon steel , zinc plated coating with high temperature resistance. 

Stroke: 6-10 mm ( adjustable )

Holding Force: 0.4N

Operating Temperature: -5 to 60deg C non-condensing

Operating Humidity: 45% to 85% non-condensing

Push Bar Diameter: Approx. 0.19 inch / 5 MM

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 a DC Automotive Solenoid Valve For Car 3.0 Inch Bi-LED Projector Headlight?

Bi-LED projector headlights are advanced automotive lighting systems that utilize dual-function LED technology for both high-beam and low-beam headlights within a single projector. The Bi-LED projector headlamps provide optimal illumination and enhance driver visibility while maintaining a sleek and modern design. Bi Led project stable performance supports by the key DC Automotive Solenoid Valve that made by us.

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. 

What is a DC Automotive Solenoid Valve For Bi-LED Projector Headlight?

Bi-LED projector headlights are advanced automotive lighting systems that utilize dual-function LED technology for both high-beam and low-beam headlights within a single projector. The Bi-LED projector headlamps provide optimal illumination and enhance driver visibility while maintaining a sleek and modern design. Bi Led project stable performance supports by the key DC Automotive Solenoid Valve that made by us.

What is a DC Automotive Solenoid Valve For Bi-LED Projector Headlight?

Bi-LED projector headlights are advanced automotive lighting systems that utilize dual-function LED technology for both high-beam and low-beam headlights within a single projector. The Bi-LED projector headlamps provide optimal illumination and enhance driver visibility while maintaining a sleek and modern design. Bi Led project stable performance supports by the key DC Automotive Solenoid Valve that made by us.