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. 

Unit Dimension: 36 x 28 x 26 mm / 1.04 x 1.42 x 1.59 inch (L*W*H); Voltage: 6 V;    Force: 2 N; Current: 0/6 A; Stroke : 6 mm 

Principle of Flapper Solenoid: 

A flapper solenoid is made with a copper coil, moving plunger and a special design flap, When the electric current passes through copper coil, the plunger retracts. When the current stops passing, the plunger goes back to the previous position with the help of a spring.
With this simple mechanism, the solenoid controls the motion of the flap that connects to the plunger. The flapper solenoid, therefore, gets to control the operation of any mechanical devices attached to it, such as gear sets or a cam mechanism. 

Features:

DC Voltage： DC 6.0 V 
Stroke： 6 mm Force：
keep force > 2 N  
Work Mode：knocking 
Insulation class： Class B，F..... 
Noise：<60dB @ no load 
Power Wattage:  7.2 W
Rate Current:  0.5 A
Resistance: 20 Ω
Lifespan Service : ≥100,000 times 
Working Cycle: 0.5s On, 2s Off

Flapper Solenoid Application: 

The common application of flapper solenoids are used in the copy machines, printing machines, massager chair and other massager product, cotter joint devices, etc.  

What we have and what we can do for you. 

Our international and domestic DC solenoids include open frame solenoids, flapper solenoids
Sucker solenoid, tubular solenoids and special & valve solenoids. If a standard solenoid does not fit your existing project, contact our sales expert for custom solenoid solution options. Solenoids can be designed to meet your specs and are guaranteed maximum function and cost efficiency. Our R & D capabilities include design, development, sample production and first article approval with full documentation. All of our products are 100% tested before shipment, our company are a ISO 9001-2015 certified and RoHS Compliant also. 

Unit Dimension: 58*53*71 MM / 2.3*2.1*2.8 Inch 

Principle of the starter solenoid:

The starter solenoid is an electromagnet which is actuated to engage the starter motor of an internal engine fixed in the car or the machine. It is normally attached directly to the starter motor which it controls.
The main function is as the inside copper coil of a contactor (a relay designed for large electric currents) which connects the battery to the starter motor proper.
The starter solenoid is also called the starter relay, but many cars reserve that name for a separate relay which supplies power to the starter solenoid. In these cases, the switch energizes starter relay, which energizes the starter solenoid, which energizes the starter motor. 

Unit Feature 

12 Volt with 4 Post/ Dual Mounting Bracket with the External Ground including Spade Converters
Replace: Craftsman Poulan 146154, 109081X, 109946, 192507;Ariens 35510, Briggs & Stratton 5410K
Replaces Bolens 1752137, 1753539, Case C-266525, C33025; Exmark 1-513075, Gilson 212655, Grasshopper 184251, Gravely 45071
Copper Coil Roll is using 180℃ copper wire, Robust plastic Shell is More durable and upgrade heat resistance performance
100% high quality & Oem Match, direct replacement

Description:

* Brand new and high quality
* Easy installation and durable housing.
* A perfect aftermarket replacement
* Starter solenoid 12V 200A

Unit Dimension: 58*53*71 MM / 2.3*2.1*2.8 Inch 

How is the solenoid relay work?

A solenoid relay can get a large electric current from the car/machine battery and a small electric current from the ignition switch. When the ignition switch is turned on, a small electric current is sent through the starter solenoid. This causes the solenoid relay to close a pair of heavy contacts, thus relaying a large electric current through the starter motor, which in turn sets the engine in motion.
The starter motor is a series, compound, or permanent magnet type electric motor with a solenoid and solenoid operated switch mounted on it. When low-current power from the starting battery is applied to the starter solenoid, usually through a key-operated switch, the solenoid closes high-current contacts for the starter motor and it starts to run. Once the engine starts, the key-operated switch is opened and the solenoid opens the contacts to the starter motor.

Unit Feature: 

Starter solenoid Relay
Volt: 12v/24v ( adjustable according to your specification)
Current: 200A
Duty Cycle: Intermittent
No. Of Terminals: 4. ( M6,1/4M-28 zinc-plated steel stud terminal )
Note: (2) Threaded Tabs with Screws (1) with Ground Lead for Relay Control@ (2) 12 Gauge Wires with Ring Terminals for B+ & S Terminals, Contact Material: Copper.

Our Plastic-Body Continuous-Duty SPST Series Solenoid Relays are available for a wide range of applications, including starting small engines in lawn tractors, golf carts, sweepers, and more and for use in heavy-duty vehicles, hydraulic systems, and machinery.

Commonly referred to as remote-acting switches, the solenoid switch models available in this starter solenoid series feature single-pole, single-throw (SPST) circuitry with normally open contacts and a glass-reinforced-nylon body that is lightweight, durable, and resistant to corrosion.

The available 100 A continuous-duty starter solenoid models feature silver contact surfaces and can be found in configurations with stud coil terminals or blade coil terminals with insulated 12 V coils or 24 V coils. They come with either an L-style or F-style metal bracket.

The heavy-duty, continuous-duty solenoid relays with a 225 A make/break current rating come with either copper or silver contacts and are available with 12 V, 24 V, or 48 V insulated coils with stud contacts. All available heavy-duty solenoid relay models feature an L-style metal bracket.

The solenoid relay contains of two coils of wire that are wrapped around a moveable core. The solenoid relay acts as a switch to close the electrical connection and connects the starter motor to the vehicle's battery.
The solenoid replay plays a crucial role in your car/machine. Every time you start the car/machine, the solenoid turns and sets the engine running. But that only happens when you have a working starter. To ensure a healthy starting system, you need to be conversant with how a starter relay works.
The starter solenoid has two primary functions in a car's/machine starting system. Firstly,  it is responsible for pushing the drive pinion gear into engagement with the ring gear teeth. This engagement is what allows the starter solenoid to turn the engine over during starting.
Secondly, it operates as a relay switch to energize the starter motor. This means it connects the battery's heavy amperage to the starter motor when the ignition key is turned.
So, the correct answer to the question  

Specifications 

Max Voltage Rating:  14, 27, 36, 48 VDC 
Current Rating Continuous:  100A, 225A 
Coil Voltage:  12, 24, 36, 48 VDC 
Coil Type:  Insulated 
Connector: 0.25in (6.35mm) 
Blade Terminals for Coil Circuitry:  SPST 
Housing: Glass Reinforced Nylon, Black Normal Position: Open Dielectric Withstand Voltage: 600V Insulation Resistance: >100MΩ

Features and Benefits

Available in a wide variety of configurations with options for copper or silver contacts, 12 V, 24 V, or 48 V coils, and blade or stud coil terminals
SPST circuitry with normally open contacts
Lightweight, glass-reinforced-nylon body is durable and resists corrosion
5/16"-24 main contact studs with hex nuts and lock washers included

Applications

Small Engines
Heavy-Duty Equipment & Machinery

Unit Dimension: 61 * 47 * 17 mm

Unit Features:

It is more convenient to use than traditional locking systems due to the absence of a key.

This cabinet locks are typically made from carbon steel materials with Zinc coating for durable and weatherproof, making them suitable for both indoor and outdoor use in public area.

In term of the business ,  the cabinet locks allow employees in office buildings, warehouses, and industrial facilities to securely store their belongings without an key.  It is easily to control who has access to the cabinets and when, as well as track access activity.it is Compact design , easy to install, no left, right, front, reverse side limitation, and allowing mechanical lash-up unlocking position. Built-in unlocking status detection. Self Elastic Design: Elasticity adjustable,

suitable for weight 0.5~4kg door.

Installation Notes

After the lock is installed, the door needs to be closed and locked with external force when closing the door. The electric control function is only used for unlocking.

This lock has an emergency unlock button, and the movable position required for emergency unlock should be reserved during installation.

Usually, this electric lock needs to be used with an additional control circuit.

The working mode of the lock is that it is not energized when it is locked, and the door is open after it is energized.

The shackle of this lock has no obvious permanent deformation under the pulling force of 150Kg;

The normal working temperature of this lock is -40°C to 60°C. It can be installed outdoors, but it is not suitable for extremely humid and flooded environments.

Electrical parameters: DC12V, 1A; the duration of a single unlock signal does not exceed 0.2 seconds (to avoid electromagnet damage).

Product life: under normal use, no less than 500,000 times.

Product Dimension: 72 * 67 * 17 mm 

Unit Feature: 

Compared with the a traditional locking system, this electronic cabinet lock kit set  benefits in terms of security, convenience, and auditability can make them a very worthwhile investment. 
Working mode: Locking when the door is closed (power off), unlocking when the power is on (12V) 
Application: The electric lock applicable for delivery locks, refrigerated cabinet, mail or newspaper box, self-service lock, book counter, changing clothes cabinet etc. Adopted steel plate for shell and carbon steel for inner material. Strong and safe to use.

Installation instruction:

1. This lock is mainly composed of a lock body and a lock buckle. Please pay attention to adjusting the position of the lock buckle and the hole during installation to ensure freedom and flexibility;
2. The red and black wires are the power cords of the electromagnetic lock, regardless of positive and negative poles. The input voltage is DC12V, and the current is 2A; the input voltage is DC24V, and the current is 1A; the input voltage is DC6V, and the current is 1.7A;
3. This lock can be customized to add signal detection, which is mainly used to detect the status of the door. It is normally open when the door is opened and normally closed when the door is closed;
4. There is no distinction between left and right, positive and negative when installing

Product Size: 73 * 58 * 17 mm ( Customization size is available also ) 

Features of smart express cabinet electric lock (electromagnetic lock):

1. Working Principled:  lock with door closed (power off) and unlock with power on (12v).
2. Emergency unlocking: unlocking methods are provided in various positions of the lock body, and the cabinet can be unlocked without damaging it in an emergency. If a mechanical key is installed, it can also be unlocked externally, which is simple and convenient to operate.
3. Energy saving: the instantaneous power-on time for unlocking is less than 1 second, and the door is closed and locked in the power-off state without power consumption; voltage 12v (various voltage models of 5v~24v can be customized according to actual needs of users). Related parameters of electromagnetic lock (electric lock) Electrical parameters: 12v, 2a 12v, 1.5a, 24v, 0.8a, 24v, 3a four common specifications, the rest can be customized.t
Material: compact housing design with zinc coating cover for outdoor or indoor environment application.

Long lifespan: 300,000 times of aging lifespan testing with stable performance along with low power consumption. 
Publicity: There is no front and back design, and all large and small boxes, cabinets, and drawers with left, right, top, and bottom door opening directions are universal. Easy installation: It can be installed on the wall surface or embedded and hidden.
Safety: It is twice as superior to similar locks in terms of sensitivity, shockproof, and anti-pry. It can be used in military, finance and other fields that require high security.
Process: The external process can be polished and plated, which is extremely bright and has strong corrosion resistance.
Application of cabinet electromagnetic locks: lockers, mailboxes, storage cabinets, urn storage racks, urn storage racks, file cabinets, filing cabinets, drawers, meter boxes, lockers and other dense cabinets... Widely used in schools, mines, factories, banks, hotels, farms, bath centers and other places.

Product housing Dimension: 89 * 76 * 17 mm

Principle of Electric Cabinet solenoid Lock

The electronic cabinet solenoid locks no key required. Electronic cabinet locks are magnetic, motor or solenoid operated and designed for interior, non-entry door applications. A commercial solenoid uses electricity to create a magnetic field to move the steel armature (plunger) in order to unlock the locking mechanism. Solenoid cabinet locks require a significant amount of current (inrush) in order to move the armature.  For Fail Secure solenoids once unlocked, power is removed and the locking mechanism relocks.
 
Design Purpose: 

Our intelligent electronic cabinet lock is the perfect solution for your storage cabinet drawer needs. With a solenoid lock, you can easily and securely access your belongings without having to worry about losing keys or forgetting a combination. The sleek and modern design is perfect for any public area or office, and the easy-to-use interface makes it a breeze to use. Whether you're looking for added security or just want to keep your things organized and safe, our electronic cabinet lock is the ideal choice.
  
Features:

High quality material: The electric lock is mainly adopted carbon steel material with Zinc electroplated electrophoretic paint, strong and safe to use. 
ADEQUATE SECURITY: Our latch hook can bear 150kg traction, won't obvious permanent deform permanently, shockproof, anti prying, in Designing Load Condition, Electromagnet Lifespan is more than 1,000,000 times (Electrical Parameters: DC 12V 2A)
EASY TO INSTALL: Compact, easy to install, no left, right, front, reverse side limitation, and allowing mechanical lash-up unlocking position. 

 How Electromagnetic clutch work ？

When the built in copper coil of the Electromagnetic clutch is energized, the copper coil generates a magnetic field, the armature is attracted to the yoke by magnetic force, and the armature is disengaged from the Electromagnetic clutch disc. At this time, the Electromagnetic clutch disc is normally rotated by the motor shaft; when the coil is de-energized, the magnetic field disappears and the armature disappears. Pushed by the force of the spring toward the brake disc, it generates friction torque and brakes.

Unit Feature:

Unit Dimension:  46*46*16 mm / 1.81 * 1.81*0.63 Inch

Voltage: DC 12 V

Housing:  Stainless steel housing, Rohs compliance and anti-corrosion , Smooth Surface.

Braking Torque：25 KG

Power : 5 W

Current: 0.4A

Resistance: 10 Ω

Response time：≤ 3 ms

Working cycle: 1s on, 2 s off

Lifespan: 200,000 cycles

Temperature rise:  Stable

Application:

AS 4116 electromagnetic clutch is electromagnetically energized, and when the model is powered off, built in spring-pressurized to realize friction braking. They are mainly applied for miniature motor, servo motor, stepper motor, electric forklift motor and other small and light motors. Applicable to metallurgy, construction, chemical industry, food, machine tools, packaging machine, stage, elevators, ships and other machinery, to achieve fast parking, accurate positioning, safe braking and other purposes.

2.As 4116 model consists of a yoke body, excitation coils, springs, brake discs, armature, spline sleeves, and manual release devices. Installed on the rear end of the motor, adjust the mounting screw to make the air gap to the specified value; the splined sleeve is fixed on the shaft; the brake disc can slide axially on the splined sleeve and generate braking torque when braking.

Condition Using

AS 4116 electromagnetic clutch can work reliably under the following conditions

1. it is working well under any dry conditions
2. In the surrounding medium, there is no risk of explosion and there is no gas and conductive dust sufficient to corrode metal and destroy insulation;
3. Working environment temperature -40 ~ +150 °C, friction plate and armature surface must not have oil, must be kept clean;
4. Insulation class B, protection class IP23, voltage fluctuation range not exceeding +5% and -15%;
5. The working air gap must not exceed the maximum working air gap. The main and driven sides of the brake must be fixed. No axial turbulence is allowed.
6. Installation: Mounting 4 holes installation, the installation of the brake must ensure that the coaxial is not greater than 0.1mm;

Unit Dimension:  φ22*14mm / 0.87 * 0.55 Inch

Working Principle :

When the copper coil of the brake is energized, the copper coil generates a magnetic field, the armature is attracted to the yoke by magnetic force, and the armature is disengaged from the brake disc. At this time, the brake disc is normally rotated by the motor shaft; when the coil is de-energized, the magnetic field disappears and the armature disappears. Pushed by the force of the spring toward the brake disc, it generates friction torque and brakes.

Unit Feature:

Voltage: DC24V

Housing: Carbon Steel with Zinc Coating, Rohs compliance and anti-corrosion , Smooth Surface.

Braking Torque：≥0.02N.m

Power : 16W

Current: 0.67A

Resistance: 36Ω

Response time：≤30ms

Working cycle: 1s on, 9s off

Lifespan: 100,000 cycles

Temperature rise:  Stable

Application:

This series of electromechanical electrode-magneticbrakes are electromagnetically energized, and when they are powered off, they are spring-pressurized to realize friction braking.

They are mainly used for miniature motor, servo motor, stepper motor, electric forklift motor and other small and light motors. Applicable to metallurgy, construction, chemical industry, food, machine tools, packaging, stage, elevators, ships and other machinery, to achieve fast parking, accurate positioning, safe braking and other purposes.

This series of brakes consists of a yoke body, excitation coils, springs, brake discs, armature, spline sleeves, and manual release devices. Installed on the rear end of the motor,    adjust the mounting screw to make the air gap to the specified value; the splined sleeve is fixed on the shaft; the brake disc can slide axially on the splined sleeve and generate braking torque when braking.

Conditions of Using

This series of brakes can work reliably under the following conditions

Work under dry conditions;

In the surrounding medium, there is no risk of explosion and there is no gas and conductive dust sufficient to corrode metal and destroy insulation;

Working environment temperature -40 ~ +150 °C, friction plate and armature surface must not have oil, must be kept clean;

Insulation class B, protection class IP23, voltage fluctuation range not exceeding +5% and -15%;

The working air gap must not exceed the maximum working air gap. The main and driven sides of the brake must be fixed. No axial turbulence is allowed.

Installation: Axial vertical installation, the installation of the brake must ensure that the coaxial is not greater than 0.1mm;