Recent news

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  2022-07-14

  What factors need to be taken into consideration when you choose a winch?

  Introduction: The winch is a light and small lifting device that uses a drum to wind a wire rope or chain to lift or pull heavy objects. The winch can lift heavy objects vertically, horizontally, or obliquely. There are three types of winches: manual winches, electric winches, and hydraulic winches, mainly based on electric winches. Usually, it could use alone or as a component in types of machinery such as lifting, road construction, and mine hoisting. It uses widely because of its simple operation, lots of rope winding, and convenient displacement. Usually, it uses mainly for material lifting or flat dragging in construction, water conservancy projects, forestry, mines, docks, etc. Main models of our company winch: Electric winch Model:JM, JK, JMM, JK-D, JKL, JT Loading capacity:0.5-80ton Rope capacity:20-5000m Working speed: 5-35m/min Power supply:220-690v,50/60hz,3phase Air winch Model:QJH,AW Lifting capacity:0.5-10t Rope capacity:80-300m Rope speed:6-48m/min Air pressure:0.6-1.0Mpa Diesel winch Model:Diesel winch Loading capacity:0.5-10ton Pulling speed:4-18m/min Rated traction:15-50KN Driving method:Belt drive; shaft drive Mining winch Model: JTK, JTP, JKB, JTPBJZM, JZ Loading capacity: 0.5-80ton Rope capacity:20-5000m Working speed:1.3-5.2m/min Work way: Friction; electric Classification standard of winch: According to the reel form, it is divided into a single reel and a double reel. According to...

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  2022-06-27

  Influencing Factors of Main Girder Subsidence of Double Girder Overhead Crane

  The common faults of the main beam of double girder overhead cranes are mainly main beam sinking, and there are many factors affecting the main beam sinking, which can summarize in the following aspects. Influence of Stress on Different Parts of Double Girder Overhead Crane There is the stress of different directions and properties in various parts of the metal structure of the double girder overhead crane. Some come from the action of the load. Some are from the manufacturing process, the uneven shrinkage between the welding seam and its nearby metal. During the use of the crane, these stress tend to be homogenized and disappear, causing plastic deformation of the structure. Overhead Crane Transportation, Storage, and Hoisting Influence The influence of crane transportation, storage and hoisting, and unreasonable transportation, storage, hoisting, and installation can cause deformation of the bridge structure. Double Girder Overhead Crane Usage Impact When the double girder bridge crane is affected by design under certain conditions, the unreasonable use of overload and eccentric load will cause the bridge frame to deform. For example, there is a 75-ton double-girder bridge crane in a factory. Due to frequent overload work, the main girder has sunk by 40mm within three years. Influence of...

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  2022-06-21

  Safety Instructions for Using Electromagnetic Cranes

  The electromagnetic crane is one type of crane equipment with electromagnets as lifting slings. Generally,  electromagnetic cranes have two types: one is an electromagnetic bridge crane, and the other is an electromagnetic gantry crane. It is mainly used for lifting steel articles and magnetic materials. It can collect and transfer lifting goods conveniently and quickly without being packed or bundled. The use of an electromagnetic crane not only saves manpower but also greatly simplifies the workflow and reduces the labor intensity of staff. We Henan Dejun Industrial Equipment Co., Ltd will introduce the safety instructions for using the electromagnetic cranes. Application scope and requirements of electromagnetic cranes This procedure applies to the safe technical operation of an electromagnetic suction cup. The worker should carefully and completely implement the magnetic crane under the safety technical operation requests. Safety technical operation instructions Requests for the operator The operator shall understand the safety operation procedures and grasp the relevant precautions. The operator shall understand the basic structure and function of the lifting electromagnetic suction cup, and carefully study the “operation manual of DC lifting electromagnet” before an operation. The operator shall be able to understand the function of crane safety equipment and grasp...

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  2022-05-09

  Introduction of XJFH Type Pneumatic Winch

  Pneumatic winch can be used in oil fields (land, sea), natural gas, coal, metals and other mining exploration and development, and marine exploration, shipbuilding and other industries! Adopting pneumatic motor as power, XJFH series Pneumatic winch can tow and lift heavy goods through speed-reducing gearbox to drive roll. It has the advantages of compact structure, convenient operation, safety and reliable operation, simple maintenance, smoothly running and stepless speed–changing, etc. It is suitably used in oilfield, oilfield drilling, mine-exploiting and other places with inflammable or easy exploding air. According to the base structure type, XJFH pneumatic winch can be divided into high base, low base, flange seat, ladder buckle seat, straight thread seat, union set seat, ear plate seat types. The system is classified into single brake (handbrake), double brakes (handbrake and foot brake), three brakes (handbrake, foot brake and auto-brake). According to the brake types, it is classified into handbrake, foot brake, hydraulic-brake, and pneumatic brake. In addition, XJFH pneumatic winch is equipped with wire rope, hook, shackle, pendant, gas processing triple pieces choice configuration. Users can choose according to their own needs and selected winch. Numbering method: XJFH: The piston type Pneumatic Winches ② First floor Max. lifting force：×10...

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  2022-04-11

  Introduction of load test scheme of cranes before working

  Generally, for the overhead cranes, gantry cranes, or any other cranes, after finishing the production, the crane inspection department will inspect the crane strictly. And only passed the test can be delivered to the clients to guarantee the product quality, and we will also provide the relative test report for you. How do you test cranes before work? Now, I will introduce the load test scheme of cranes in detail: 1. Various safety devices work reliably and effectively; each mechanism operates normally and brakes are reliable; the control system and electrical control system work normally; cranes and trolleys run along the full length of the track without rail gnawing. The no-load test inspection method of the crane is as follows: after the power is turned on, after the test of each safety device is qualified, the no-load lifting and running test shall be carried out. Check whether there is any abnormality in the operation and control system of each institution. 2. Static load test of cranes: the newly installed, overhauled, and reconstructed cranes should be subjected to a static load test. Lift the rated load, 100-200mm from the ground, gradually load the load to 1.25 times the load, hang in...

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  2022-03-09

  DeJunCranes Promotion For March Expo 2022

  Now, for March Expo 2022, DeJunCranes is providing 10% off promotion on crane products for all of customers all over the world.