30/40/50/60 ton Lifting Equipment Steel Wire Rope Luffing Marine Deck Crane Stiff Boom Straight Arm Boom Crane

Product introduction:

I. Definition and Operating Principle

The wire rope luffing crane utilizes devices such as drums and wire rope sheaves assemblies to manipulate the boom's amplitude, thereby achieving the lifting, movement, and positioning of heavy loads. Its operating principle primarily hinges on the concerted effort between the sheaves assemblies and the luffing mechanism. By precisely controlling the position and angle of the sheaves assemblies, the crane adjusts the wire rope's luffing angle, subsequently altering the position of the lifted object.

II. Structural Features

• Wire Rope: Composed of multiple strands of high-tensile steel wires twisted together, it boasts remarkable strength, durability, and resistance to wear, capable of withstanding significant loads and friction forces.

• Sheaves Assemblies: Typically consisting of one or more sheaves mounted on the luffing mechanism, these assemblies are driven by electric motors or hydraulic systems, efficiently guiding the movement of the wire rope.

• Luffing Mechanism: This vital component oversees the motion of the sheaves assemblies, enabling the adjustment of the wire rope's luffing angle, ultimately facilitating the positional shifts of the lifted loads.

• Boom: Typically constructed from truss or box-girder structures, the boom possesses sufficient rigidity and strength to support the lifted objects and endure various loads, ensuring operational stability.

III. Application Scenarios

Wire rope luffing cranes find extensive application in diverse settings, including docks, ports, stockyards, and industrial production areas requiring cargo handling and lifting operations. For instance, they are highly favored as fixed-type luffing cranes in dock operations, facilitating the loading and unloading of goods between shores and vessels or cargo ships. Furthermore, they are also employed as luffing devices in construction machinery, such as tower cranes and bridge construction equipment, showcasing their versatility and adaptability across various industries.

Our Services:
Act as a good adviser and assistant of client, we can help them to get rich and generous   returns  on their investment.

1. Pre-sale services:  
      a: Design customised project for clients.
      b: Design and manufcture products according to clients special requirement.
      c: Train technical personnel for clients.

2. Services during the sale:
      a: Help clients to find reasonable freight forwarders ahead of delivery.
      b: Help clients to draw solving plans.

3. After-sale services:
       a: Assist clients to prepare for the construction scheme.
       b: Install and debug equipment.
       c: Train the first-lin operators.
       d: Examine equipment.
       e: Take initiative to eliminate the troubles immediately.

If you are interested in this crane, please provide more details with me,such as:

1. Crane SWL requested(__T__M).

2. Max. working radius of the crane and Min. working radius of the crane, lift weight at max work radius and min work radius.

3. The crane will be used on ship, offshore plant form or fixed plant form (motor 380V or 440V)

4. If you have any other special request for the crane, please advise us

Please never hesitate contact with me! Your reliable partner!