Telescopic Chute Hydraulic System

The Telescopic Chute Hydraulic System is designed for automated material discharge and loading operations in coal handling facilities. Using hydraulic actuation and integrated control technology, the system enables the loading chute to extend, retract, lower, and adjust its operating angle according to different loading requirements.

It provides controlled material delivery into railway wagons, trucks, and other bulk material carriers, helping improve loading accuracy while reducing coal spillage and dust emissions. With a robust structural design, stable hydraulic performance, and remote operation capabilities, the system is suitable for coal mines, coal preparation plants, railway loading terminals, and other bulk material handling facilities.

Product Features

Multi-Stage Telescopic Movement

• Powered by multi-stage hydraulic cylinders for controlled chute extension and retraction.

• Standard telescopic travel range of 6–15 m, with customized configurations available.

• Adjustable extension and retraction speeds to accommodate different loading operations.

• Smooth movement helps minimize material spillage and impact during loading.

• Suitable for different vehicle configurations, including railway wagons and trucks.

Accurate Positioning and Automated Control

• Integrated displacement sensors or encoders provide real-time feedback on chute movement and position.

• Works with a PLC control system to support precise positioning, with millimeter-level accuracy as a system design capability.

• Provides both manual operation and automatic control modes.

• Supports coordinated chute movement to simplify loading operations and reduce manual intervention.

Heavy-Duty Structure and Wear Protection

• Chute structure can be manufactured using high-strength steel, such as Q690, according to project requirements.

• Optional wear-resistant lining, including NM400, helps withstand material impact and abrasion.

• Designed for demanding coal handling environments and repeated loading cycles.

• Hydraulic components and protective structures are configured for dusty and corrosive industrial conditions.

• Explosion-protection requirements can be incorporated into the system design according to the applicable mine environment and certification requirements.

High-Performance Hydraulic Drive

• Hydraulic operating pressure range: 16–25 MPa.

• Hydraulic power unit can be configured with variable-displacement or load-sensing pumps to improve energy utilization.

• Proportional valves provide controlled hydraulic movement and adjustable operating speed.

• Counterbalance valves help maintain stable actuator movement and prevent uncontrolled chute descent.

• Hydraulic drive supports smooth extension, retraction, and angle adjustment.

Integrated Safety Protection

Hydraulic Overload Protection

Relief valves and pressure relays monitor system pressure and provide protection against abnormal overpressure conditions.

Vehicle Collision Prevention

Optional infrared or ultrasonic sensors detect vehicle positioning and help prevent contact between the chute and vehicle compartment during operation.

Emergency Manual Retraction

An emergency manual hydraulic pump can be provided to retract the chute when normal electrical power is unavailable, subject to the system configuration.

System Configuration

Technical Specifications

Note: The above specifications represent the stated configuration range. Final parameters and equipment selection can be confirmed according to the loading site, vehicle dimensions, operating conditions, and project requirements.

Application Advantages

Higher Loading Efficiency

Hydraulically controlled telescopic movement and PLC-based automation reduce the need for manual positioning. The system is designed to improve loading efficiency, with loading speed increases of over 30% achievable under suitable operating conditions.

Reduced Coal Dust and Material Loss

The enclosed chute structure helps limit coal spillage during material transfer. A compatible spray dust suppression system can also be integrated to reduce airborne dust and improve the working environment.

Convenient Maintenance

A modular equipment layout simplifies inspection, servicing, and replacement of key components. Hydraulic components from established manufacturers, including Rexroth and Parker, can be selected according to project requirements.

Flexible System Integration

The control architecture can be configured to communicate with existing plant PLC systems and remote monitoring platforms. Industrial IoT connectivity, including 5G-based monitoring solutions, can be incorporated where required.

Adaptation to Harsh Operating Conditions

The system can be configured for demanding coal handling environments, with optional explosion-protection, low-temperature operation, wear-resistant materials, and other project-specific requirements.

Application Areas

• Coal Mine Railway Rapid Loading Systems: Automated chute positioning and material loading into railway wagons.

• Port Bulk Material Loading Systems: Controlled discharge of coal and other bulk materials into transport vehicles or loading facilities.

• Coal Preparation Plants: Material transfer, coal blending, and loading operations requiring adjustable discharge positioning.

Customization and Technical Support

Customized system design is available according to site conditions, material characteristics, loading capacity, and equipment integration requirements.

Available project support includes:

• Customized hydraulic system and structural design.

• Explosion-protection configuration for applicable operating environments.

• Low-temperature and special environmental adaptations.

• Hydraulic and electrical system installation and commissioning.

• Equipment operation and maintenance training.

• Long-term technical consultation and support.