News

Let's talk about itHuaxia tower craneConsiderations in Procurement

The quality assurance of the purchased Huaxia tower crane can be obtained from the following​Considerations:

To consider whether the manufacturer of Huaxia tower crane is a regular manufacturer, product quality and good reputation;

Consider whether the purchased Huaxia tower crane is a molding series product, and try to avoid purchasing non-molding and non-standard products during the probation period;

　　Huaxia tower craneThe performance and price should be considered comprehensively, that is, the cost performance of the purchased tower crane should be given priority, and only the price should be considered while ignoring the performance of its products. The following defects may exist when the construction tower crane leaves the factory, and attention should also be paid:

1. Problems in Design

The pull rod corresponding to the boom length change of the boom tower crane does not match (not installed at the factory);

The design and installation of the torque limiter are defective, and the sensitivity is poor;

The design of electrical components can not meet the requirements of use, resulting in high failure rate of circuit and control system (mainly due to insufficient consideration of voltage range), which affects the safe use of tower crane;

The safety factor of steel structure design is low, and there are problems in standard section bolt connection, which makes it difficult to ensure the installation and fastening of high-strength bolts.

2. The problem of supporting parts

Failure to assemble the working mechanism according to the design requirements of the drawings and the selection of supporting institutions with lower prices, resulting in the performance of the Huaxia tower crane being lower than the design requirements, and its contents appear in samples and advertisements, which are obviously deceptive;

The electrical components used by some manufacturers when assembling tower cranes cannot meet the standard requirements, especially the use of electrical insulation and five-core cables;

Some manufacturers choose low-cost steel, pulley block wire rope, high-strength bolts, hydraulic seals.

3. Problems in product manufacturing

The welding of the steel structure of the tower crane fails to meet the quality requirements, the height and depth of the welding seam are not enough, CO2 gas shielded welding is not adopted, and the place where the welding connecting plate should be set is not set, resulting in eccentric bending moment and affecting the safety of the tower crane;

The surface paint quality of the tower crane mechanism is poor, and it often breaks the skin and returns to rust before the completion of a project.

4. Incomplete explanation and poor reference.

The operating instructions of Huaxia tower crane are generally simple, lack of illustrations, and many wearing parts are not marked at all;

The manual cannot guide the tower crane users how to use, install and maintain the tower crane, and how to eliminate the common faults of the tower crane.

5. After-sales service and training

After-sales service is not timely, users lack the necessary technical support and guidance in driving, daily maintenance, troubleshooting, etc.

The above is the small editor to explain the "Huaxia tower crane procurement matters needing attention" content, we all understand?Huaxia tower craneFor the relevant content, you can contact our Huaxia tower crane manufacturer, and there will be professionals to serve you. Thank you for watching. See you next time.