Application fields and product specification analysis of explosion-proof pneumatic hoist

1、 Core application areas

Explosion proof pneumatic hoists, with their explosion-proof, efficient, and durable characteristics, have become ideal lifting equipment in flammable and explosive environments, mainly used in the following fields:

Petrochemical industry

Scenario: Refineries, chemical plants, oil and gas extraction platforms, etc.

Requirement: It is necessary to work safely in an environment containing flammable gases, dust, or vapors to avoid sparks causing explosions.

Case: The Japanese Sanrong VMX 2-ton pneumatic hoist has a lift of 3 meters and is designed specifically for flammable and explosive environments. It supports a gas supply pressure of 0.6MPa, a lifting speed of 0.5m/min, and a gas consumption of 0.4Nm ³/min.

Coal and metal mines

Scenario: Underground mining, tunnel excavation, equipment hoisting, etc.

Requirement: Suitable for high dust and humid environments, with flame retardant and anti-static properties.

Case: Nolton NOLD pneumatic hoist, with a load specification of 0.25 tons to 2 tons and a standard lifting height of 3 meters, can operate stably in acidic, alkaline, steam, and dust environments.

Shipbuilding and repair

Scenario: Ship segmented lifting, pipeline installation, equipment maintenance, etc.

Requirement: It is necessary to frequently lift large steel structures, requiring equipment to be corrosion-resistant and accurately positioned.

Case: Pneumatic hoist combined with cantilever crane or guide rail movement to achieve efficient docking of ship sections.

Automobile manufacturing and logistics warehousing

Scenario: Stamping, welding, assembly line material handling, container lifting, etc.

Requirement: High frequency, infinitely variable speed, support continuous operation, reduce labor intensity.

Case: The operating speed of the pneumatic hoist is 2-3 times that of the electric hoist, and it can be infinitely adjusted, improving efficiency by more than 30%.

Textile and pharmaceutical industry

Scenario: Cleanroom, cleanroom equipment lifting, raw material handling, etc.

Requirement: Explosion proof, pollution-free, to avoid accidents caused by static electricity or sparks.

Case: The pneumatic hoist is driven by a gas source, with no risk of electric sparks, and meets GMP certification requirements.

Military and power industry

Scenario: Manufacturing of weapons and equipment, maintenance of substation equipment, etc.

Requirement: High security, high reliability, adaptable to harsh environments.

Case: Explosion proof chain hoist is used in conjunction with explosion-proof manual monorail trolley to form a manual lifting and transportation system.

2、 Product specifications and core parameters

The specifications of explosion-proof pneumatic hoists cover a wide range, and models can be selected according to actual needs. The main parameters include:

Load range

Small tonnage: 0.25 tons to 2 tons, suitable for lifting precision instruments and small equipment.

Medium tonnage: 5 to 10 tons, used in scenarios such as automobile manufacturing and logistics warehousing.

Large tonnage: 20 to 30 tons, meeting the heavy lifting needs of shipbuilding, mining machinery, and other industries.

Increase altitude and speed

Standard lift: 3 meters to 10 meters, can be customized with extended chains according to working conditions.

Speed increase: 0.5m/min to 2m/min, supports stepless speed regulation, and achieves centimeter level precise positioning.

Gas supply pressure and gas consumption

Gas supply pressure: 0.4MPa to 0.6MPa, stable compressed air source is required.

Air consumption: 0.4Nm ³/min to 2.5Nm ³/min, depending on the load and lifting speed.

structure type 

Loop chain: The chain is sturdy and durable, suitable for high-frequency and heavy-duty operations.

Wire rope type: with good flexibility, suitable for long-distance lifting.

Mini/Ultra Low Type: Small in size, low clearance, suitable for working in narrow spaces.

Explosion proof rating and certification

Explosion proof standard: Complies with national explosion-proof safety standards (such as Ex d IIB T4), holds a coal safety certificate and ISO quality management system certification.

Material: The shell is made of H62 copper alloy, and the internal gear system is made of aluminum bronze or beryllium bronze through heat treatment to isolate mechanical friction sparks.

additional function

Cut off protection: Automatic braking when the gas source is interrupted to prevent the workpiece from falling.

Overload protection: Automatic shutdown in case of overload to prevent equipment damage.

Infinite variable speed: By controlling the handle force to adjust the operating speed, the operation is flexible.

3、 Selection suggestions

Select based on working conditions

Flammable and explosive environment: Priority should be given to selecting pneumatic hoists with complete explosion-proof certification (such as Noriton NOLD, Japan Sanrong VMX type).

High frequency homework: Choose blade or piston pneumatic motors for long service life and low maintenance.

Narrow space: Choose mini or ultra-low pneumatic hoists to reduce clearance requirements.

Selection of supporting equipment

Mobile requirements: Cooperate with explosion-proof hand pulled carts or pneumatic carts to achieve horizontal movement.

Accurate positioning: Use pneumatic hoists with drawstring control or handle button switches for more sensitive operation.

maintenance

Regular lubrication: Add lubricating oil to friction components such as chains and gears every 1-3 months.

Clean the filter screen: Clean the air filtration device monthly to prevent blockages from affecting the air supply quality.

Explosion proof component inspection: Regularly inspect the explosion-proof shell and explosion-proof surface to ensure no damage or breathability.

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