Imported machine tool safety can not be ignored

Recently, Xiamen Administration of Inspection and Quarantine and Tongan Office conducted an on-site inspection of a US$143,000 vertical CNC machining center imported from Taiwan by an enterprise in the jurisdiction, and found that the product was unsafe for safety protection devices, and the connection points of the protection wires were unmarked. Problems such as the existence of serious security risks may cause personal injury to operators and surrounding personnel.

At the same time as the Security Office, an expert was organized to conduct an in-depth analysis of the issue. The main reasons were as follows: First, due to differences between China's relevant mandatory standards and foreign standards, foreign manufacturers were not familiar with the standards of our country and failed to strictly comply with the requirements of our country's standards. The second is that relevant agencies and factories lack understanding of the management regulations and related mandatory technical requirements for China's imported machine tool products. They blindly believe in foreign well-known manufacturers and ignore relevant quality terms and requirements when signing contracts.

In response to this situation, the office immediately issued a Notice of Inspection and Quarantine of Imported Electromechanical Products to the consignee, requesting the consignee to notify the consignor of rectification of the non-conformities so as to eliminate potential safety hazards of the equipment. After the equipment is rectified, it is not allowed to be sold and used without being requalified by the inspection and quarantine department.

At the same time, Tongan Office carried out a risk investigation of this type of product and this type of problem, and found that the other machines exported by the manufacturer of the problem also had the above-mentioned security risks. To this end, it is recommended that: 1. The Xiamen Inspection and Quarantine Bureau and the State Administration of Quality Supervision, Inspection and Quarantine publish relevant warning notices in a timely manner. 2. The manufacturer shall implement a recall of defective imported mechanical products and take effective measures to eliminate potential safety hazards and ensure product quality and safety. Third, the inspection and quarantine departments actively promote the requirements of China's mandatory technical regulations, arrange special personnel to follow up the equipment import enterprises to grasp the relevant laws and regulations and standards, and urge enterprises to raise product awareness of risk.

Slewing Controller

Slewing Controller is a kind of Tower Crane slewing control device, combined speed and voltage regulation and eddy current speed controling. The slewing control block control the speed of eddy current torque motor, to make the tower crane slewing mechanism start, working and stop smoothly. This kind of Slewing Controller is used to regulate and control the speed of three-phase torque motor of AC 50Hz, voltage 380V.

HRCV slewing controller is a hoisting slewing controller developed by our company according to service condition of customer.
The main technical feature as follows:
(1) This product combined the controller and thyristor module,the connection of the users is simple and easy.Prevent the damage of the controller and thyristor module caused by mis-wiring of the customer.
(2) Realize the best optimization of AC voltage control curve and DC voltage control curve.
(3) With the function of inching during operation, realize the accuracy.
(4) The electronic components adopt the imported industrial grade chip, on the control panel directly with power supply and direction indicator light.
(5) Adopt the coating treatment on the printed circuit board,enhance the dust prevention and anti-condensation capacity of the circuit board.

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