Designed for SINOTRUK HOWO and SITRAK AMT automatic transmissions, this range shift cylinder is a core electro-pneumatic actuator responsible for high/low gear range switching in the auxiliary gearbox. It ensures fast response, smooth operation, and reliable performance under heavy-duty and complex driving conditions.

Key Features

1. Reliable Range Gear Shifting

• Precisely controls high/low gear switching
• Fast response with smooth, shock-free operation
• Reduces internal gearbox wear

2. Durable & Leak-Proof Structure

• High-strength precision die-cast aluminum cylinder body
• Premium wear-resistant sealing components
• Excellent air tightness, pressure resistance, and anti-leakage performance

3. Wide Temperature Adaptability

• Stable performance in extreme temperatures
• مقا耐 high/low temperature, heavy load, and harsh environments
• Suitable for long-distance and demanding operations

4. Dustproof & Sealed Protection

• Multi-layer sealing design
• Dustproof, anti-leakage, and anti-aging
• Ensures long-term reliability

5. Modular Integrated Design

• Standardized structure for easy installation
• Strong compatibility across multiple HOWO / SITRAK models
• Low failure rate, maintenance-free operation

Technical Advantages

• Improves gear shifting smoothness
• Enhances transmission efficiency
• Reduces mechanical wear and maintenance cost
• Ensures stable vehicle performance

Technical Specifications