Introduction to the characteristics, application scope, and operating procedures of explosion-proof chain block products

1、 Product Features

Explosion proof materials and structures

Explosion proof treatment of key components: The shell is made of H62 copper alloy, and the gear system is made of aluminum bronze or beryllium bronze through heat treatment to ensure that no mechanical sparks are generated during friction and impact.

Sealing performance: The shell sealing design prevents flammable gases or dust from entering the interior, reducing the risk of explosion.

Anti static treatment: Electrical components are made of anti-static materials to prevent static electricity from accumulating and causing sparks.

Mechanical performance optimization

Wear resistance: The rotating gear undergoes high-temperature heat treatment, which provides high wear resistance and extends its service life.

Lightweight design: The bracelet has low tension and light weight, making it easy to carry and operate.

Stability: Three in one transmission technology (such as three-stage deceleration lifting reducer) ensures smooth operation and reduces failure rates.

Security redundancy design

Braking system: The friction plate ratchet and brake seat are designed to be integrated, ensuring the safety of heavy objects hovering.

Error prevention device: The vertical suspension design of the lifting chain prevents the chain links from twisting or flipping.

2、 Application scope

High risk industries

Petrochemical industry: equipment installation and maintenance in flammable and explosive places such as oil depots, refineries, gas stations, etc.

Coal and metal mines: Lifting operations in combustible gas environments within mines to avoid gas explosions caused by sparks.

Military and Aerospace: High risk scenarios such as spacecraft fuel refueling and ammunition handling.

Special homework environment

Paint workshop: In a volatile organic solvent environment, prevent friction sparks from igniting flammable gases.

The pharmaceutical and food industries have a dual demand for explosion and corrosion prevention in clean workshops.

Electronics and Railways: Safe Operations in Precision Equipment Lifting or Track Maintenance.

Typical scenario

High temperature environment: Designed with specialized components to adapt to electrical discharge or high-temperature operating conditions.

No power operation: Manual operation mode is suitable for outdoor or remote areas, such as offshore drilling platforms.

3、 Operating procedures

Pre use inspection

Appearance inspection: Confirm that the shell is not damaged, the bolts and nuts are tightened, and the ropes are not broken or excessively bent.

Functional test: Check the flexibility of the hand chain wheel, brake, and lifting chain during idle operation.

Environmental assessment: Remove obstacles in the lifting area to ensure no accumulation of flammable gases or dust.

Operating specifications

Load limit: Overloading is strictly prohibited. Before lifting, confirm that the weight of the goods is within the rated range.

Correct suspension: Hang the lifting chain vertically to avoid tilting or twisting; The hook frame under the double chain shall not be flipped.

Uniform force: Pull the bracelet gently to avoid sudden force causing the chain to jump or get stuck.

Personnel safety: During operation, personnel are prohibited from staying or walking under heavy objects to prevent falling injuries.

Emergency Management

Abnormal stop: If abnormal increase in hand tension, chain jamming, or odor is found, immediately stop the operation and check.

Fault isolation: When the problem cannot be solved, remove the equipment from the hazardous area and notify professional maintenance personnel.

Accident reporting: In the event of a fire, explosion, or injury to personnel, immediately activate the emergency plan and report it.

maintenance

Daily cleaning: Clean dust and oil stains after use, apply rust proof grease and store in a dry place.

Regular maintenance: professional personnel dismantle and inspect, replace worn parts (such as chains and gears).

Lubrication maintenance: Regularly lubricate pulleys, chains, and other components with oil to ensure smooth operation.

4、 Typical case

Oilfield operations: When lifting equipment on drilling platforms, explosion-proof chain hoists are used to prevent metal friction sparks from igniting oil and gas, ensuring operational safety.

Chemical plant maintenance: Replace the reaction kettle in a flammable solvent environment, with explosion-proof design to prevent sparks from causing chain explosions.

Coal mine roadway: When hoisting support materials, copper alloy components should avoid high-temperature sparks caused by friction with rocks, reducing the risk of gas explosions.

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