Regarding the maintenance points of hand cranked cranes and the hazards of inferior products, we can conduct a detailed analysis from the following aspects:

1、 Key maintenance points for hand cranked cranes

Daily lubrication:

Column and bearing lubrication: The column part of the hand cranked crane is operated by hand lifting, so a certain amount of butter is needed for daily lubrication of the column and bearing parts to ensure smooth operation.

Other lubrication points: For other components that may wear out, such as pulleys, gears, etc., appropriate lubrication should also be applied according to their usage.

Waterproof and moisture-proof:

Protection of the telescopic part of the column: The telescopic lifting part in the column should be avoided from long-term exposure to rain as much as possible to prevent rusting. When used in a humid environment, special attention should be paid to keeping it dry.

Safe storage:

Column lowering: When not using a hand cranked crane, the extended column should be lowered to the lowest position using a hand cranked winch to avoid damage caused by collisions with other vehicles or objects.

Integral fixation: The entire crane should be fixed on a stable ground when not in use to prevent tipping or movement.

Regular inspection:

Structural inspection: Check the metal structural components of the crane for cracks, deformation, or corrosion, and promptly address any issues.

Inspection of connecting components: Check whether the connecting bolts, pins, and other components are tightened, whether they are loose or worn, and if so, tighten or replace them in a timely manner.

Safety device inspection: Check the safety devices of the crane, such as brakes, limiters, etc., for sensitivity and reliability. If there are any abnormalities, they should be adjusted or repaired in a timely manner.

Correct use:

Avoid overloading: When using a hand cranked crane, it should be operated strictly according to its rated lifting capacity to avoid equipment damage or safety accidents caused by overloading.

Smooth operation: During the lifting process, it is necessary to maintain smooth operation to avoid sudden acceleration or deceleration that may cause impact on the equipment.

2、 The hazards of inferior hand cranked cranes

hidden danger:

Unstable structure: The metal structural components of low-quality hand cranked cranes may have problems such as cracks, deformation, or unstable welding, which can lead to safety accidents such as collapse or fracture of the equipment during use.

Failure of safety devices: The safety devices of inferior products may not meet the standard requirements, such as insensitive brakes, inaccurate limiters, etc., which increases the risk of safety accidents.

Performance degradation:

Unstable lifting: Due to manufacturing process and material issues, the lifting process of low-quality hand cranked cranes may not be smooth enough, which can easily cause shaking or jamming.

Short service life: Poor quality products have poor component quality and wear resistance, which can easily lead to frequent malfunctions or damage of the equipment during use, shortening its service life.

Increased maintenance costs:

Frequent maintenance: Due to unstable equipment performance and short service life, low-quality hand cranked cranes may require frequent maintenance and replacement of parts during use, increasing maintenance costs.

Impact on production: Equipment failures and downtime maintenance can directly affect production progress and efficiency, causing economic losses to the enterprise.

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