CM-20J Air Brake Booster Pump for XCMG Construction Machinery

CM-20J Air Brake Booster Pump for XCMG Construction Machinery

The CM-20J Air Brake Booster Pump is a heavy-duty pneumatic braking component engineered specifically for XCMG construction machinery. It integrates a service brake chamber and a spring-loaded parking brake chamber into a single piggyback unit, delivering reliable, responsive braking performance in the most demanding job-site conditions.

Key Features

• Piggyback Dual-Chamber Design: Combines service braking and spring parking brake in one compact assembly, reducing installation complexity and saving space
• High-Strength Cast Iron Housing: Precision-cast iron body with anti-corrosion coating ensures long service life under harsh operating environments
• High-Performance Diaphragm Seal: Premium-grade rubber diaphragm provides excellent air-tightness, ensuring fast and consistent brake response
• Emergency Manual Release: Built-in manual release bolt (red cap) allows safe manual disengagement of the spring parking brake in emergency situations
• Color-Coded Air Ports: Blue and yellow port markings clearly identify service and parking brake air lines, simplifying installation and maintenance
• Factory Leak-Tested: Every unit passes a full air-tightness pressure test before shipment, with a quality certification label affixed
• OEM-Compatible Fitment: Designed to meet XCMG OEM specifications for direct bolt-on replacement

Specifications

• Part Number: CM-20J
• Type: Piggyback Spring Brake Chamber
• Application: Air brake system
• Housing Material: Cast iron
• Brand Compatibility: XCMG

Compatible Machine Models

XS225H, 3Y263JIV, XS263JS, 3Y223J, XS225HS, XS263J, XS265HS, 3Y183J, XS265JSIV, 3Y263J, XS225JS, XS395, XS265HSIV, XS265JS, XS225JSIV, XS335IV, XS263H, XS365IV, XS265H, XS365M, XS225HSIV

Installation Notes

Verify that system air pressure meets the specified operating range before installation. Inspect the diaphragm and sealing components regularly for wear or damage. Always depressurize the air system before performing any maintenance on the brake chamber.