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WUJIE
A wheel cylinder standing on glowing rings in a dark factory hall, with line drawings of a drum brake backing plate and brake shoes on either side

Drum brake wheel cylinder

Wheel cylinders for drum brakes, from Xiaoshan, Hangzhou

WUJIE manufactures drum-brake wheel cylinders to your drawing or sample. Minimum order 1000 pcs.

Drum brake wheel cylinder on a white background: cast housing with a machined window, black rubber boots and a bleeder screw with a green mark

The part

What a wheel cylinder does

The wheel cylinder sits inside a drum brake. When the driver presses the pedal, hydraulic pressure reaches the cylinder and pushes its pistons outward, which presses the brake shoes against the drum.

Weight
0.6–1 kg/pcs
MOQ
1000 pcs

WUJIE produces this part from a cast housing with machined bores, fitted with rubber boots and a bleeder fitting. Send a drawing or a sample and we will confirm the specification with you before production.

Drum brake application

Where the wheel cylinder sits in the brake

It is the link between hydraulic pressure and the shoes. Here is the sequence, from pedal to drum.

  1. Brake pedal

    The driver presses the pedal.

  2. Master cylinder and brake line

    Pedal force becomes hydraulic pressure that travels along the brake line.

  3. Wheel cylinder

    Pressure pushes its pistons outward inside each drum brake.

    WUJIE makes this part

  4. Brake shoes

    The pistons press the shoes against the inside of the drum.

  5. Brake drum

    Friction between shoes and drum slows the wheel.

What to send for a match

Wheel cylinders differ by vehicle and brake. These details let us confirm the right part.

  • A drawing, or a physical sample of the part
  • The quantity you plan to order (MOQ 1000 pcs)
  • Markings or packaging you need on the part
  • Any inspection report or third-party inspection requirement

Product details

Look closely at the part

Three real photos of the wheel cylinder, each from a different angle, and what each part of it is.

  • Drum brake wheel cylinder on a white background: cast housing with a machined window, black rubber boots and a bleeder screw with a green mark

    Housing window and bleeder screw

  • Drum brake wheel cylinder on a white background: cast housing with a raised marking, black rubber boots and a rubber-capped fitting on top

    Cast marking and rubber-capped fitting

  • Drum brake wheel cylinder on a white background: rough cast housing, rubber boots, a rubber cap and a flat metal tab on top

    Cast housing, rubber cap and metal tab

Cast housing
A cast body with a machined bore area visible through the housing window.
Rubber boots
Black rubber boots cover both ends of the cylinder.
Bleeder fitting
Views show a bleeder screw with a coloured mark and rubber-capped fittings on top of the housing.

Manufacturing

Made in our Xiaoshan workshop

Founded in 2016, WUJIE machines wheel cylinders in Xiaoshan, Hangzhou. These photos are from our own floor.

  • CNC lathes

    Turning of round features on cast and machined parts.

  • Drilling/tapping centers

    Drilled and threaded holes machined in a controlled set-up.

  • Reamers

    Finishing of bores and holes to the size on your drawing.

A CNC machining centre with a large bulk bag beside it and a wire-mesh basket of cast parts on the right
A CNC machining centre with a basket of cast parts beside it
A workshop floor with a row of drill presses on the left and wire-mesh baskets full of cast housings along the aisle
Drill presses and baskets of cast housings on the workshop floor
A room with two digital instrument units on a table, a control panel with gauges and switches, blue crates, and a table covered in clear blister trays holding finished parts
Instrument units, a control panel and blister trays of finished parts

Customisation and inspection

From your drawing to a checked part

The documented path for custom and OEM/ODM orders, in the order it happens.

  1. Send your requirement

    Share a drawing or a sample, the quantity and any markings. The minimum order is 1000 pcs.

  2. Confirm the specification

    We review the part with you and agree the details for custom production or OEM/ODM before work starts.

  3. Machining and checks

    The part is made on CNC lathes and drilling/tapping centers, with reamers used to finish bores and holes.

  4. Inspection

    Ask for an inspection report with the order. Third-party inspection can also be arranged by the buyer.

Questions

Buyer questions, answered

The basics on the part, ordering and inspection. Anything else, ask us.

What does a wheel cylinder do in a drum brake?

It converts hydraulic pressure from the brake line into mechanical force. Its pistons push outward and press the brake shoes against the inside of the drum.

What is the minimum order quantity?

The MOQ is 1000 pcs.

Can you make a wheel cylinder to my drawing or sample?

Yes. Custom production and OEM/ODM are supported. Send a drawing or sample details with your enquiry and we will confirm the specification with you.

Do you provide inspection reports?

Yes, inspection reports are available, and third-party inspection is supported. Mention your inspection requirement in your enquiry.

How heavy is the wheel cylinder?

The wheel cylinders we supply range from 0.6 to 1 kg per piece (0.6–1 kg/pcs), depending on the part.

Where can I see prices?

This site is for enquiries, so prices are not published. Send your requirement through the quote form and we will respond to you directly.

Request a quote

Tell us what you need

Four fields and a security check. Send a drawing or sample description and the quantity you have in mind.

Minimum order quantity is 1000 pcs.

Mention your drawing or sample, sizes, markings and any inspection requirement.

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