China Master Cylinder Manufacturers Suppliers Factory - Customized Master Cylinder

The Automobiles Master Cylinder Manufacturer!

Founded in 2004, Zhejiang Zhanxiang Auto & Motorcycle Parts Co., Ltd. is a leading manufacturer specializing in the research, development, production, and sales of premium brake systems for two-wheeled vehicles. With an unwavering commitment to riding safety, Zhanxiang is dedicated to advancing the standards of braking performance across the industry.

why choose us

Providing Solutions

As a trusted OEM and ODM partner, Zhanxiang delivers tailored brake system solutions to globally recognized brands, including Honda, CFMOTO, Yadea, NIU, iMotor, Silence, and KYMCO.

Robust Production Capacity

With over 55 production lines, Zhanxiang has achieved full automation in both casting and CNC machining. This enables us to maintain high-volume, consistent output while ensuring excellent manufacturing precision and efficiency.

Full-Process Quality Testing

We operate a dedicated in-house testing laboratory where every component is strictly tested at each production stage. From raw materials to final assembly, we ensure that every brake product delivered meets rigorous safety and performance standards.

Experienced R&D Team

Our technical team includes over 40 engineers and specialists, driving continuous innovation in braking technology. With 20+ patented technologies, we are committed to developing safer, smarter braking systems tailored to evolving global needs.

Advantages of Automobiles Master Cylinder

Efficient braking:

The master cylinder efficiently converts mechanical force into hydraulic pressure, ensuring quick and reliable brake activation.

Safety:

The brake master cylinder plays a critical role in maintaining safe braking systems, ensuring the vehicle can come to a stop promptly in emergencies.

Independent braking circuits:

In dual circuit master cylinders, separate circuits for front and rear wheels provide redundancy, enhancing safety in case of one circuit failure.

Diagonal braking:

Dual circuit master cylinders also enable diagonal braking, further improving stability during braking and enhancing vehicle control.

Uniform force distribution:

Single circuit master cylinders distribute equal force to all wheels, ensuring balanced braking performance.

Compatibility:

Master cylinders are adaptable to various vehicle types, making them suitable for two- and four-wheelers.

Hydraulics advantage:

Hydraulic braking systems offer significant advantages over mechanical systems, such as reduced wear and tear and improved longevity.

Easy maintenance:

With proper maintenance, brake master cylinders can have a long lifespan, contributing to the overall longevity of the vehicle.

Types of Automobiles Master Cylinder

Single Circuit Master Cylinder: This type was commonly used in older vehicles. It has one reservoir and one piston, supplying brake fluid to all four wheels through a single brake line. While this system is simple, it lacks redundancy—if there's a failure you will lose all braking power.

Dual Circuit Master Cylinder: Today, most vehicles are equipped with a dual-circuit master cylinder and brake booster. This combination provides more effective braking by applying greater force to the master cylinder piston when the driver pushes the brake pedal. The cylinder also has two separate pistons and two reservoirs. This provides redundancy and increases safety by splitting the braking force between two circuits, typically one for the front and one for the rear brakes. If one circuit fails, the other will still function, allowing the driver to have some braking capability to stop the vehicle.

Changing of Automobiles Master Cylinder

Prepare for repair: Before the master brake cylinder can be replaced, the repair must be prepared. This often involves dismantling parts in the engine compartment. The brake fluid is siphoned off or drained via the expansion tank.

Remove the master brake cylinder: The next step is to remove the defective master brake cylinder from the car. To remove the component, all connections and connecting hoses must be loosened. The same applies to the component's screw connections.

Compare component: Once the master brake cylinder has been dismantled, the component can be removed from the engine compartment. Any fluid adhering to it is collected with a cloth. It is then a good idea to compare the defective component with the spare part.

Install the spare part: If the fit is correct, the intact component is installed in the engine compartment. It must be fastened in accordance with the manufacturer's instructions. The lines and connections are then reassembled on the replacement part.

Bleeding the brakes: After the procedure, the missing brake fluid in the system is topped up. This should involve a complete change of fluid. To ensure reliable functioning of the brake system, the system must then be bled.

Components of Automobiles Master Cylinder

Lever or Pedal:

This part serves as the means through which the brake master cylinder is operated, allowing the driver to activate the braking system.

Piston:

Connected to a push rod and a return spring, the piston slides inside the bore when the brake lever or pedal is pressed, pushing the brake fluid.

Spring Return:

In both drum and disc brake assemblies, this component helps the piston return to its original position when the brake lever or pedal is released.

Pushrod:

The pushrod is attached to a lever and piston, and when the brake lever is pressed, it pushes the piston, initiating the movement of brake fluid.

Bore:

Similar to calliper assemblies, brake master cylinder assemblies feature a bore where the piston moves.

Piston Assembly:

Comprising the piston, a series of O-rings/gaskets, a primary cup, a secondary cup, and a return spring, the piston assembly is housed inside the master cylinder's bore.

Reservoir:

Usually made of aluminium or cast iron, the reservoir stores brake fluid and has a window for checking fluid levels and colour. Different shapes are used, such as rectangular or square-shaped, and sometimes round-shaped reservoirs are used for rear disc brakes.

Brake Fluid:

An essential hydraulic fluid, brake fluid transfers force under pressure and is graded similarly to engine oil.

Bladder:

Present in open-system master cylinders, the bladder is made of thin-walled rubber, allowing it to expand and contract. It separates the brake fluid from the atmosphere.

Hosepipes:

Tube-like pipes that transport brake fluid from the brake master cylinder assembly to the calliper assembly.

O ring/Series of gaskets:

This includes cup or O-ring, primary cup, secondary cup, and circle P. The cup and circle P act as retainers for the piston and are positioned between the pushrod and piston. The primary seal allows brake fluid from the reservoir to flow into the brake hosepipe when the brake lever or pedal is pressed. The secondary seal prevents brake fluid from moving to the other side of the cylinder when the brake lever is activated and acts as a spring retainer.

Clamp:

Holds the entire brake master cylinder assembly. When the brake lever or pedal is pressed, the pushrod attached to it and the pistons push the piston, generating pressure in the reservoir tank. The primary seal allows brake fluid to flow from the reservoir to the brake hosepipe. The secondary seal ensures brake fluid doesn't flow to the other side. When the brake lever is released, the return spring pushes the piston back to its original position, allowing fluid to return to the reservoir via the hosepipe and cylinder bore.

FAQ

Q: Why You Should Replace A Bad Brake Master Cylinder Right Away

A: The brakes won't operate without the brake master cylinder. If the brake master cylinder fails, there won't be anything to stop the wheels from spinning. A failing brake master cylinder compromises your vehicle's safety by increasing its braking distance and causing problems with your brake pedals. Replacing a bad brake master cylinder reduces the chances of you accidentally rear-ending vehicles in front of you. A new brake master cylinder kit ensures an optimum brake fluid level with fresh rubber seals, pistons, and return springs.However, a brake master cylinder kit isn't available for all vehicles. If you experience something unusual with your brakes, you shouldn't hesitate to get your master cylinders checked and replaced.

Q: How Much Does a Brake Master Cylinder Replacement Cost?

A: An aftermarket brake master cylinder replacement can cost anywhere between $270 to $330 for the parts alone. Several factors can factor pricing, such as brand, condition, and kit inclusions. You can expect to pay $140 to $250 for labor depending on your location.

Q: What is the purpose of a master cylinder on a car?

A: In automotive engineering, the master cylinder is a control device that converts force (commonly from a driver's foot) into hydraulic pressure. This device controls slave cylinders located at the other end of the hydraulic brake system and/or the hydraulic clutch system.

Q: What will happen if your master cylinder is bad?

A: A problem with the brake master cylinder will cause the brake pedal to behave abnormally. All the pressure in the braking system is generated from the master cylinder. If it malfunctions, the cylinder will not distribute pressure properly, and the pedal will be affected.

Q: How to check if a master cylinder is working?

A: One way to test a brake master cylinder is to press the brake pedal for a minute. If the pedal drops, then there's a problem. You can also test the brake master cylinder while observing the brake fluid tank. If the fluid behaves abnormally when brakes are pressed, then there's likely an issue.

Q: What is the life expectancy of a master cylinder?

A: Brake master cylinders usually last between 70,000 and 110,000 miles, though some can endure much longer with regular maintenance. Over time, the rubber seals within the cylinder degrade, reducing braking performance and potentially dangerous situations.

We're well-known as one of the leading master cylinder manufacturers and suppliers in China. If you're going to buy bulk master cylinder, welcome to get quotation from our factory. Also, customized service is available.

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