Double Girder Overhead Crane with Winch Trolley

Technical Data

Application

QD series bridge cranes are used in warehousing and logistics, precision machining, metal manufacturing, wind power, automobile manufacturing, rail transit, and construction machinery.

Features

• 1
  The bridge frame adopts a box-shaped main beam, which is automatically submerged arc welding.
• 2
  The open winch trolley is conductive with a new I-steel track cable conductive device, which is safe and reliable, and has a grounding protection function, and is equipped with a phase loss protection function.
• 3
  The connection between the main beam and the end beam meets the mechanical tolerances, minimizing the degree of wear.
• 4
  The lifting mechanism can also be equipped with a second set of safety devices according to requirements to increase reliability.
• 5
  Standardization, serialization and generalization of parts and components.
• 6
  The handle line can be connected to the trolley, or it can move freely on the main beam alone.
• 7
  The double beam overhead crane can make full use of the space under the bridge to lift materials, and maximize the lifting height without being hindered by ground equipment.
• 8
  All steel plates of the crane are pre-processed by shot blasting to achieve Sa2.5 standardization.
• 9
  Carefully check and clean the steel plate before welding, usually by automatic welding machine (MIG or semi-automatic welding), and the main welds are all subjected to non-destructive testing.
• 10
  The end beam is welded and formed by rectangular steel pipe or steel plate, and the formed end beam is positioned and processed on the CNC machine tool at one time to achieve the allowable deviation range to ensure national dimensional accuracy and fit tolerance.
• 11
  Each end beam is equipped with wheels with double rims, buffers and derailment protection devices.
• 12
  The double-beam crane is equipped with a maintenance platform (maintenance walkway) on the driving side of the crane long travel along the main beam direction.
• 13
  The main beam and end beam are connected by high-strength bolts to ensure the accuracy and smooth operation of the whole machine.
• 14
  According to the frequency of use, it is divided into four working levels: A5, A6, A7, and A8.
• 15
  The double-beam bridge crane has the characteristics of light weight, large load and strong wind resistance.
• 16
  The hoisting mechanism is an electric winch trolley, and the speed of the whole crane can also be equipped with a frequency converter to achieve stepless speed.
• 17
  Usually double-beam bridge cranes are added with overload limiters, large-screen displays and various protection devices, which further increase the safety during use
• 18
  Double-beam overhead cranes generally adopt the cabin control method, which is different from other cranes. The control method of the operator's cab can fundamentally increase the speed of the crane, thereby further improving work efficiency.

Custom

QZ series Double Girder Grab Overhead Crane

Lifting capacity: 5-25ton
QZ series bridge cranes with grab buckets are suitable for indoor or outdoor fixed-span transportation of bulk materials in metallurgy, cement, chemical and other industrial sectors.

QB series Explosion-proof Double Girder Overhead Crane

Lifting capacity: 5-50 ton
QB series explosion-proof double beam cranes mainly refer to double beam overhead cranes used in industry and mining. This kind of crane has a wide range of applications, including indoor and outdoor industrial and mining enterprises, steel and chemical industries, railway transportation, and first-class port terminals. Play a role of safety protection during operation

QC series Electromagnetic Double Girder Overhead Crane

Lifting capacity: 5-32 ton
QC series electromagnetic overhead cranes are suitable for loading, unloading and moving steel parts and hard-to-package steel in factories, freight yards, warehouses, and wharves. By changing different types of equipment, they can also lift finished steel billets and coils.

QL series Revolving Electromagnetism Double Girder Overhead Crane

Lifting capacity:10+10 - 200+200 ton
QL series overhead cranes has two types, one is lower hanging beam rotation mechanism, another is mounted with the trolley rotating mechanism. QL overhead crane is suitable for indoor or outdoor fixed spans such as steel mills, shipyards, ports, storage yards and warehouses, to load, unload and transport steel plates, steel bars, steel coils and other materials. Electromagnetic chuck, clamp and other special spreaders can be carried under the hanging beam.

QE Series Double Trolley Overhead Crane

Lifting capacity: 5+5-200+200 ton
QE double trolley overhead crane has double hooks and double lifting points. It is a new type of bridge crane designed for independently and smoothly lifting a single long cargo. The double trolleys can run on a single trolley and two simultaneously. The hook lifting mechanism can be lifted at the same time and independently.Double trolley bridge cranes are suitable for wind power towers, pipe pile building materials, telephone poles, long materials, steel mold steel pipes, wood bars, paper rolls, long steel components and other industries.

Double Girder Overhead Crane with Lifting Tong

Lifting capacity: 3-800 ton