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Zhejiang Gongzheng Machinery Co., Ltd.
Zhejiang Gongzheng Machinery Co., Ltd. is professional China Truck Brake Components Manufacturers and Custom Commercial Vehicle Brake Components Suppliers. Our core products include ABS (Anti-lock Braking System) and EBS (Electronic Braking System) control units, air dryers, air brake valves, and spring brake chambers, designed to meet the rigorous demands of the global commercial vehicle industry.

With advanced production technology, strict quality control, and a commitment to innovation, we provide reliable and efficient solutions for truck and trailer manufacturers worldwide. Our products comply with international standards, ensuring safety, durability, and superior performance in diverse operating conditions.

Key Products:
ABS & EBS Control Systems – Enhancing vehicle safety and stability.
Air Dryers – Ensuring clean, moisture-free air for braking systems.
Air Brake Valves – Precision-engineered for optimal braking performance.
Spring Brake Chambers – Robust design for heavy-duty applications.


At Zhejiang Gongzheng Machinery, we prioritize customer satisfaction, technological advancement, and sustainable growth. Partner with us for trusted braking solutions that drive excellence.
Safety. Reliability. Innovation.
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Your Partner in Truck Brake Components

Zhejiang Gongzheng Machinery Co., Ltd. is a professional Truck Brake Components Manufacturers and supplier, integrating R&D, production, and sales of braking and control systems for commercial vehicles. Our core product family includes ABS and EBS control units, air dryers, air brake valves, and spring brake chambers. We serve truck and trailer manufacturers, fleet operators, and aftermarket distributors worldwide, with a focus on heavy-duty trucks, buses, and trailers.

Our factory spans 30,000 m², with over 200 employees and a monthly output exceeding 60,000 air brake valves and air dryers, plus an annual production of over 600,000 spring brake chambers. We hold IATF certification and maintain ISO quality management across all processes.

Our Product Range

We organize our offering into two main vehicle platforms, each with dedicated subcategories for precise application matching.

European Commercial Vehicles

Components engineered for Mercedes-Benz, MAN, Scania, Volvo, DAF, Iveco, and other European platforms. Includes air dryers, unloader valves, circuit protection valves, foot brake valves, relay valves, trailer valves, ABS/EBS valves, EBS axle modulators, brake chambers, and more.

Browse European range →

American Commercial Vehicles

Components for Freightliner, Western Star, Peterbilt, Kenworth, International, and other North American trucks. Includes brake chambers, air dryers, PP-DC & MV3 valves, relay valves, foot brake valves, levelling valves, ABS valves, air manifolds, hub caps, and shift knobs.

Browse American range →

Application Fit and Engineering Value

Our components are designed for the specific pneumatic architecture and regulatory environment of each region. European models typically require ECE R13 compliance, while American models follow FMVSS 121 standards. We match port configurations, pressure ratings, mounting patterns, and electrical interfaces accordingly.

Over 70% of component parts are manufactured in-house, giving us control over material quality, dimensional consistency, and corrosion resistance. Our R&D team focuses on integrating electronic control (ABS/EBS) with pneumatic actuation, which is critical for modern vehicle stability and safety systems.

Critical Specifications and Performance

Component Typical Pressure Range Key Feature Application
Air Dryer 8.1 – 12.5 bar Integrated regeneration, optional tire inflation port Air treatment for all commercial vehicles
Unloader Valve 8.1 – 10 bar Multi-port, inductive, or with safety valve Compressor control and system protection
Foot Brake Valve Dual-circuit, 0–10 bar Progressive modulation, low hysteresis Service brake actuation
Spring Brake Chamber Service: 8.5 bar; Spring: mechanical Dual-function service and parking brake Heavy-duty trucks and trailers
ABS/EBS Valve System pressure up to 12 bar Integrated solenoid, diagnostic capable Electronic stability and brake control

Configuration and Automation Integration

We configure each component based on the vehicle’s air system architecture, required response time, and electronic interface. For ABS/EBS valves, we match the ECU protocol (CAN SAE J1939 or ISO 11992) and connector type. Brake chambers are selected by stroke, clamp type, and diaphragm material for the expected load and operating temperature range.

Our factory uses automated assembly lines and digital twin technology to ensure repeatable quality. We maintain a standing inventory of over 200,000 units to support large-volume and urgent orders.

Quality Assurance and Compliance

All products are tested for leakage, pressure response, and cycle life before shipment. We hold IATF 16949 certification, and our ABS systems have obtained ECE R13 certification for the European market. The ISO quality management system covers every process from incoming material inspection to final packaging.

Information We Use to Configure Your Solution

To prepare an accurate proposal and configuration, we need the following project data:

  • Vehicle platform: Make, model, year, and regional specification (European or American).
  • System type: Pneumatic only, ABS, EBS, or hybrid (air-electric for new energy vehicles).
  • Operating conditions: Ambient temperature range, humidity, road conditions, and duty cycle.
  • Performance targets: Required braking force, response time, and service life.
  • Interface requirements: Port sizes, thread types, electrical connectors, and mounting dimensions.
  • Volume and timeline: Annual quantity, delivery schedule, and packaging preference.
  • Certification needs: Target markets and required approvals (ECE, FMVSS, etc.).

Our engineering team can also work from samples or drawings for custom ODM/OEM projects.

Installation, Maintenance, and Support

Each component ships with a technical datasheet and installation instructions. We provide training documentation for fleet maintenance teams and offer direct engineering support for integration issues. Spare parts and replacement cartridges are available for all air dryer and valve models.

For aftermarket distributors, we offer consolidated shipments with mixed product lines to reduce logistics complexity.

Frequently Asked Questions

What is the typical lead time for custom brake components?

Lead time depends on complexity and volume. Standard products ship from stock within 15–30 days. Custom ODM projects typically require 45–60 days after sample approval.

Do you provide samples for testing before bulk order?

Yes. We can supply pre-production samples for fit and function testing. Sample lead time is usually 7–15 days for standard items.

Can you match existing OEM part numbers?

We cross-reference OEM numbers for European and American platforms. Provide your reference part number, and we will confirm compatibility and supply the equivalent component.

What is your minimum order quantity (MOQ)?

MOQ varies by product. For standard air brake valves and chambers, MOQ is typically 50–100 pieces. For ABS/EBS electronic units, MOQ may be higher due to programming and calibration requirements.

How do you ensure product quality for international shipments?

Every unit undergoes functional testing and leak inspection before packing. We use export-grade packaging with moisture barrier protection. Third-party inspection is available upon request.

Do you offer warranty on truck brake components?

We provide a standard warranty against manufacturing defects. Warranty period and terms are defined in the sales agreement and vary by product category.

Related Products and Categories

Our portfolio also includes European Air Dryer for applications with different operating ranges, interfaces or integration requirements.