Customize Aluminum Casted Master Cylinder Body for Sale

Product Overview: High-Performance Brake Component

The high quality aluminum cylinder is used in automotive brake system, which is needed cylinder slide 100,000 times.

It needs pretty high requirement of size tolerance and inner finish roughness.

Get Your Custom Quote & Ordering Information

Ready to order or buy custom aluminum master cylinder bodies? 

We provide end-to-end manufacturing solutions from prototype to mass production.

Request a Price Quote : Submit your 3D drawings or specifications. Our engineers will provide a detailed price analysis and custom solution within 24 hours.

How to Order Samples: We support small-batch orders for prototype testing and quality verification.

MOQ & Production: Flexible Minimum Order Quantity for prototyping. Scalable for bulk purchase and mass production.

Why Buy from Joyometal?

Vertically Integrated Manufacturing: In-house control from tooling, casting, CNC machining to QC ensures competitive pricing and consistent quality.

Military-Grade Inspection: Unique cross-sectioning and optical measurement guarantee precision and zero defects.

Engineering Support: Get tips and ideas from our technical team on material selection and design for manufacturability.

Contact Us Now to Submit Your RFQ and Get a Price Quote！

Material & Precision Manufacturing Process

Design analysis

Our engineers analyze your 3D CAD model to create an optimized casting plan, as the following pictures showing:

master cylinder body drawing analisis -1

master cylinder body drawing analisis -2

master cylinder body drawing analisis -3

master cylinder body drawing analisis -4

drawing for casting of cylinder body confirm

Mateial

We use certified aluminum alloy A356 with T6 heat treatment for optimal strength and castability.

Gravity Casting 

The aluminum casting part are cast using steel molds in a gravity process. Each batch is cross-sectioned to verify zero porosity or sand holes.

aluminum casting cylidner body after tooling

aluminum gravity casted cylinder body

aluminum casting part cut to check sand holes

no sand holes found in aluminu m castings

CNC Machining

The castings are fixed on CNC turning machine, machining the thread and outer surface exactly as drawing. 

CNC multiple turning

CNC working in one step

CNC turning the product

CNC turned thread in one end

 Drilling the holes

After that, deep center holes to be worked in special deep hole tooling machines, and vertical holes location needs to be worked in 4 -axis milling machine, special the small holes. The specialized equipment allows for precise drilling of holes with a depth-to-diameter ratio ≥5:1, minimizing deflection and maintaining straightness.

CNC deep drill machine inside

deep hole drill machine

deep hole drill tooling showing

CNC milling the small holes in 3 axis CNC machine

CNC milling and taping holes

small hole taping tool

Inner hole surface roughness is another key important issue, honing the hole with special tool is necessary. Then all the machining processes are finished.

QC inspection

For critical internal bores, traditional measurement fails. Our solution:

Sectioning: Finished parts are precisely cut in half.

Optical Measurement: Both halves are measured on an Image Measuring Instrument (IMI) to verify diameter, tolerance, and surface roughness.

Purpose: This method solves the measurement challenge for deep bores, ensuring every shipped part meets print specifications.

cutting into two pieces to check inner surface after honing

12pcs cut to size inspection

inner holes surface Section 1

one section after cuting

The pictures depict a workpiece being inspected for dimensional size and tolerance on an Image Measuring Instrument.

inspection size and tolerance in image measuring instructment

inspection size in image measuring instructment

size inspected by image measuring instrument

Mass-production

After final approval, we move to mass production. Each part is cleaned, individually wrapped in anti-static bubble film, and packed securely in wooden crates for global shipping.

mass-production after size approved

mass production with qualified process

Packing

Reverify critical dimensions, ensuring no bump or surface defects. Clean parts with alcohol wipes to remove oil, dust, or metal debris. Each one is wrapped with bubble bag to protect and put into wooden box with shipping mark.

Moreover, there are some different size master cylinder bodies worked by our workshop for different applications.

Ningbo Joyo Metal Parts Co,.Ltd. is specialized in manufacturing high-precision products, demonstrating expertise in silica sol casting for complex geometries, tight CT6 tolerance control. Our capabilities are backed by comprehensive quality assurance, ensuring precision across casting, machining, and surface treatment for demanding applications in high-precision industry.