Introduction to Explosion-Proof Manual Hoist Trolley Products

1. Product Characteristics

Explosion-Proof Design:

Material Selection: Constructed with bronze, beryllium bronze, or other non-sparking materials to prevent sparks during friction or impact.

Structure: Compact design with small installation dimensions, suitable for various track types (flat, inclined, or curved).

Efficiency: Rolling bearings in wheels ensure high transmission efficiency and low manual chain pull force.

Safety Features: Equipped with safety devices to ensure reliable operation.

Adaptability:

Flexible Movement: Adjustable wheel gauge for different track widths, allowing use on inclined surfaces (up to 1:6 slope) and curves.

Durability: High-temperature heat-treated gears for enhanced wear resistance.

2. Application Scope

Industries: Widely used in petroleum, petrochemical, chemical, mining, electronics, railways, and other hazardous environments where explosive gases, vapors, or dust may be present.

Tasks: Ideal for equipment installation, cargo lifting, object fixation, binding, and traction, especially in confined spaces, outdoor operations, or areas without power supply.

3. Operating Rules

Pre-Use Checks:

Component Inspection: Ensure all parts are intact, with no damage or deformation. Check bolts and nuts for tightness.

Lubrication: Verify that transmission parts and lifting chains are well-lubricated and that the equipment runs smoothly under no-load conditions.

Operation Guidelines:

Load Limit: Strictly adhere to the rated load capacity; avoid overloading or using non-manual power sources.

Chain Handling: Keep the lifting chain vertical and free from twists. Avoid flipping the lower hook assembly in double-chain models.

Operator Position: Stand in line with the hand wheel and pull the chain smoothly to prevent jumps or jams.

Personnel Safety: Prohibit personnel from working or walking under suspended loads.

Post-Use Maintenance:

Cleaning and Storage: Clean the hoist, apply anti-rust oil, and store it in a dry place.

Professional Servicing: Engage qualified personnel for maintenance and repairs to ensure safety and proper function.

Emergency Measures:

Abnormalities: If unusual forces are encountered, stop immediately and inspect for obstructions or damage.

Collision Prevention: In multi-hoist environments, ensure adequate spacing and use non-metallic buffers to prevent static sparks.

4. Explosion-Proof Design Principles

Material Selection: Use copper alloys or engineered plastics for components prone to friction or impact.

Spark Suppression: Employ stainless steel cables and non-metallic buffers to minimize spark risks.

Component Design:

Brakes: Open-type brakes with non-sparking materials or adjusted clearances.

Wheels and Tracks: Smooth, rust-free welds on tracks to prevent ignition sources.

5. Industry Application Cases

Petrochemical Plants: Used in fire suppression system installations and equipment maintenance.

Pharmaceutical Industry: Reduces powder contamination in cleanroom environments.

Flammable Gas Sites: Specialized components for safe operation in high-risk zones.

6. Safety Compliance

Certification: Ensure the product meets relevant explosion-proof standards and regulations.

Training: Operators must receive training on safe operation and emergency procedures.

The main equipment produced by Hebei Makita: stage electric hoist, electric chian hoist, wire rope electric hoist，Hand chain hoist, lever hoist, pneumatic hoist and other lifting equipment