Gantry Crane
Gantry Crane are also known as Portal crane or Goliath crane. Include Single Girder Gantry Crane, Double Girder Gantry Crane, engineer gantry crane, Semi Gantry Crane, European type gantry crane and operate on floor mounted rails. Mainly used in Steel, Forest Products, Intermodal, Biomass/Pellet, Concrete and many other industries.
The terms gantry crane and Overhead Crane (or bridge crane) are often used interchangeably, as both types of crane straddle their workload. The usual distinction drawn between the two is that with gantry cranes, the entire structure (including gantry) is usually wheeled (often on rails). By contrast, the supporting structure of an overhead crane is fixed in location, often in the form of the walls or ceiling of a building, to which is attached a movable hoist running overhead along a rail or beam (which may itself move).
Single Girder Gantry Crane,Double Girder Gantry Crane,Rail Mounted Crane,Portable Lifting Gantries XINXIANG DEGONG MACHINERY CO., LTD. , https://www.degongcrane.com
On May 4th, Guangzhou Administration for Industry and Commerce conducted a quality inspection on the plug-and-socket products sold in the circulation field of Guangzhou. A total of 84 samples produced by 44 production companies were sampled. After testing 27 samples, it was judged that the overall supervision was unqualified, and the failure rate was 32.14. Among them, 15 plugs were extracted, 8 were unqualified, and the unqualified rate was 53.33; 56 sockets were taken, 12 were unqualified, and the unqualified rate was 21.43; 13 converters were selected, and 7 were unqualified. The failure rate was 53.85. According to the introduction of many well-known brand products, this sampling adopts the "Product Quality Supervision Sampling Inspection Program with Prior Quality Information" (GB/T28863-2012) standard, the inspection and marking of wires and cables, heat resistance, A number of performance indicators such as resistance to thermal shock and tracking of insulating materials were tested. In the sampling results, the two-pole multi-function socket, two-three-pole socket and single-connected multi-function socket, which are produced by Guangdong Schneider Electric Co., Ltd., have the nominal trademark of Snaider, and the dimensional inspection items are unqualified; The single-switch four-bit converter heat-resistant project produced by Opal (Zhongshan) Co., Ltd. and trademarked OPPLE was unqualified. The main problems of unqualified dimensional inspection are that the bolt size does not meet the standard requirements, the two-pole grounding plug type, parameters and dimensions do not meet the standard requirements. The size of the bolt does not meet the standard requirements, so that the plug cannot be properly inserted into the socket, and there is a danger of loose plug and poor contact during use; failure of heat resistance will result in deformation of the product during use, exposure of live parts, etc., which seriously endangers the user. Safety. Inspecting inspection reports should be checked in addition to dimensional inspection and heat resistance, signs, grounding measures, flexible cables and their connections, the structure of plugs and mobile sockets, normal heat resistance of insulation materials, flame resistance and electrical tracking resistance. There was also a problem detected in the sampling. These problems can lead to poor contact, parts falling off or damage, resulting in electric shock, fire and other dangers, which can easily cause personal injury and property damage to consumers. Guangzhou Industrial and Commercial Bureau reminds consumers that when purchasing plugs, sockets, converter products and other products, the seller should be able to provide the inspection report of the quality inspection department, otherwise there will be no basis for the quality, and the plug and socket should be checked when purchasing. The mark on the converter shall be marked with the company name, specification model, rated voltage, rated current value, power supply property symbol and related warning signs. Select the corresponding matching product based on the power of the appliance used. When you buy it, try it. After the plug is inserted into the socket, it should be in good contact. There is no feeling of looseness, and it can be pulled out without much effort. Also check the protection door. If the gap in the middle of the protection door is too large, it cannot really protect the user. people.