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        Shanghai Xuban Machinery Co., Ltd.

        Contact: Mr. Lin

        Hand machine: 13817836118

        Phone: 021-64118616

        Biography: 021-64118616

        Address: No. 904, Jiangyuan Road, Pujiang Town, Minhang District, Shanghai

        How to choose wireless remote control grab

        Release date:2020-05-26

        The remote control grab (also called: wireless remote control grab) is a kind of retrieving device equipped under a single drum crane, used for loading and unloading various bulk goods such as mineral powder, coal, grain, fertilizer, industrial salt, alumina and so on. The wireless remote control grapple cleverly applies the wireless remote control technology and the simplest hydraulic technology to the grapple, making the grapple unique. The principle of the remote control grab: The grab has its own closed hydraulic system. The hydraulic system is controlled by a wireless remote control device to control the solenoid valve, and the change of the upper and lower chambers of the cylinder is controlled by the solenoid valve reversal. The lower end of the cylinder body and the lower beam of the grab Connected together, the upper end of the piston rod of the oil cylinder is connected with the grapple sliding seat. When the grab is in the open state, to grab the cargo, loosen the grab wire rope, and the piston rod is pressed into the cylinder body under the weight of the sliding block. At this time, press the remote control to let the oil passage of the upper and lower chambers of the cylinder Closed, the sliding seat is locked, the sliding seat and the lower bearing beam are integrated into one, the steel wire rope is lifted, and the grab grabs the goods.

        When the grab is in the closed state, to release the cargo, just press the remote control transmitter, control the solenoid valve to be energized, the hydraulic system oil circuit is opened, the sliding block pulls out the piston rod of the oil cylinder, against the upper bearing beam, the grab opens Release the goods. When the remote control grab is used for loading a vehicle or a funnel, sometimes it is not necessary to open the grab all at once, as long as the grab is opened to the required size, press the remote control transmitter to control the solenoid valve. , The hydraulic system oil circuit is closed, and the grapple is opened as large as possible. During the process of opening the grab, you can pause at will according to people's wishes. The advantages of remote control grab: 1. Energy saving (compared with electro-hydraulic grab) 2. High efficiency (compared with floor open grab) 3. Safe and reliable (compared with hand grab) 4. Smooth work (compared with hand) Pull-type and floor-type grabs) 5. Easy to use (compared with hand-held grabs) 6. Strong function (compared with hand-drawn and floor grabs) 7. Large-scale (compared with hand-held grabs) ) 8. Simple structure and few failures (compared with hand-held and floor-mounted grabs) Because of the advantages of remote control grabs, shipowner customers also prefer to use remote control grabs in addition to electric hydraulic bulk grabs. And because remote control grabs are simpler and easier to manufacture than electric hydraulic bulk grabs, there are several grab companies in China that advertise and produce remote grabs. But it is not an easy task to make the remote control grapple reliable and durable. For example, if a small piece of garbage is in the closed hydraulic system, the valve will be blocked, causing a small failure , And the remote control grab is to catch small particles of bulk cargo in the boat warehouse. Several key points of the failure of the remote control grab: 1. Whether the system is reasonable, and the unreasonable natural failure is high. Some grapple manufacturers also have accumulators on the remote grapples. 2. Seal and clean the fuel tank. 3. Whether the wiring in the electrical junction box is simple or complex, there are many complicated wire ends, and every time the wire ends fall, it is a failure. 4. Whether the internal structure of the oil cylinder is reasonable. The unreasonable oil cylinder will squeeze the seals and cannot be used. The remote control grab produced by Shanghai Gruber has mastered the key to the problem. The design of the cylinder, hydraulic system and electrical circuit is reasonable, and the structure is simple. 220 remote control grabs are exported to Greece, the Netherlands, Singapore, Malaysia, Indonesia, Vietnam and other countries. malfunction.