Air Hoists Mine Series

Air Hoists Mine Series

Product Introduction:

The Air Hoists Mine Series is a specialized range of pneumatic lifting equipment purpose-built for the world's most demanding underground environments. Engineered specifically for mining operations—including coal mines, metal ore mines, and tunnel construction sites—this series combines explosion-proof safety, extreme durability, and reliable heavy-lifting performance in conditions where electric equipment cannot operate safely.

With load capacities typically ranging from 1 to 20 metric tons (with customized options available for higher capacities), the Mine Series delivers the power and dependability required for daily operations in hazardous, dust-laden, and high-humidity underground workings.

Key Features:

1.Certified Explosion-Proof Safety

The Mine Series carries full mining safety certifications, including MA (China Mining Approval) , MSHA (U.S. Mine Safety and Health Administration) , and ATEX/IECEx compliance upon request. With zero electrical components, these hoists generate no sparks, no electrical arcs, and no surface heat—eliminating the primary ignition sources in methane-gas-rich or coal-dust-explosive atmospheres.

2.Heavy-Duty Construction for Harsh Underground Conditions

Built with high-tensile alloy steel and treated with anti-corrosion coatings, the Mine Series withstands:

*High humidity and water ingress

*Abrasive coal and rock dust

*Corrosive gases (such as hydrogen sulfide and sulfur dioxide)

*Temperature extremes from -20°C to +55°C

*Frequent impacts and rough handling typical of mining environments

3.Superior Dust & Moisture Sealing

All air motors, gearboxes, and braking systems feature enhanced ingress protection (IP54/IP55 as standard, higher upon request). Sealed bearings and labyrinth-style shaft seals prevent fine particulate matter from entering critical components, significantly extending service life between overhauls.

4.Static Electricity Dissipation

Every unit is equipped with built-in grounding points and anti-static chain/rope assemblies to prevent the accumulation of static charge—a critical safety feature in potentially explosive gas and dust atmospheres.

5.Precision Control with Variable Speed

The Mine Series is powered by high-efficiency vane-type air motors that deliver infinitely variable speed control. Operators can:

*Inch loads slowly for precise positioning in tight underground spaces

*Accelerate smoothly for efficient cycle times

*Maintain precise load suspension without drift

6.Integrated Safety Systems

*Mechanical load brake: Automatically engages upon air pressure loss, preventing uncontrolled load descent

*Overload protection: Hoist ceases lifting if load exceeds rated capacity

*Low-pressure safety lock: Hoist locks when supply pressure drops below minimum threshold

*Emergency stop valve: Instant air shut-off from pendant or remote

*Anti-drop secondary brake: Redundant braking system for maximum fail-safe protection

*Chain/rope overspeed protector: Prevents runaway in case of component failure

7.Low Noise Emissions

Equipped with high-efficiency exhaust silencers, the Mine Series complies with underground noise regulations, protecting operators' hearing while maintaining clear communication on the workface.

Typical Applications:

*Coal mining: Longwall face equipment handling and maintenance

*Metal ore mining: Heavy parts replacement in drifts and stopes

*Underground tunnel boring machine (TBM) support

*Mine shaft hoist room and pump station maintenance

*Conveyor belt roller and drive replacement

*Ventilation fan installation and servicing

*Refuge chamber equipment deployment

*Mine construction and expansion projects

For the overall dimensions and technical specifications of the HQ Mine Series air hoists, please refer to the JM and JMY charts/diagrams.