When evaluating an explosion proof lever hoist, there may be the following quality issues:

Corrosion and deformation of metal structures:

Corrosion issue: The metal structure of the crane may experience extensive corrosion after long-term use, especially in harsh environments. This corrosion will reduce the strength of the metal structure, thereby affecting overall safety.

Deformation issue: Metal structures may deform due to excessive loads or long-term use, such as deflection of the main beam or deformation of the connection parts, which can affect the load-bearing capacity and stability of the crane.

Loose or worn connecting components:

Bolt and pin connection: The bolts at the connection site may loosen due to rust or vibration, and the pin may affect the reliability of the connection due to wear and tear.

Insufficient connection strength: If there are defects in the design or manufacturing of the connection parts, it may lead to insufficient connection strength and pose a safety hazard.

Lifting mechanism malfunction:

Wear of hooks and wire ropes: The hooks may crack or deform, and the wire ropes may break due to wear or corrosion, affecting lifting safety.

Pulley and brake issues: Pulleys may become stuck due to insufficient lubrication or wear, while brakes may fail due to improper adjustment or wear.

Electrical system issues:

Explosion proof performance failure: In explosive environments, the explosion-proof performance of electrical components is crucial. If the sealing is poor or the electrical components are aging, it may lead to a decrease in explosion-proof performance.

Aging or short circuit of electrical circuits: Electrical circuits may experience short circuits due to aging or external damage, posing a risk of fire or explosion.

Safety device failure:

Limiting device and overload protection: If the limiting device fails or the overload protection device fails, it may cause the crane to overload and cause accidents.

Emergency stop device: The emergency stop button or rope switch may not function properly due to malfunction, affecting safe operation in emergency situations.

Manufacturing and installation defects:

Poor material quality: Using inferior materials may cause the crane to break or deform during loading.

Improper installation: Failure to follow proper procedures during installation may result in unstable overall structure of the crane or improper installation of components.

Insufficient maintenance and repair:

Lack of regular inspections: Failure to conduct regular inspections and maintenance as required may result in potential issues not being detected and addressed in a timely manner.

Incomplete maintenance records: Lack of detailed maintenance records, making it difficult to trace the usage history and maintenance status of the crane.

Insufficient training for operators:

Improper operation: Operators who have not received professional training may cause damage or accidents to the crane due to improper operation.

Weak safety awareness: Operators do not attach importance to safety regulations and may overlook safety operation requirements.

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