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Jib crane designs, jib crane parts & types of jib cranes comparison

15 Nov, 2018

Basics of jib cranes, jib cranes design, types of jib crane, jib cranes parts, and the comparisons of various different type of jib cranes for you to select the right jib crane at affordable price. Dongqi jib crane for sale.

Jib crane

A jib crane is widely used in small and medium workshop for repetitive and unique material handling works. Due to the versatility, jib cranes are usually used with eot overhead crane to maximize production.

Even though jib crane is simple in design, jib cranes can handle loads with capacity from 0.5 ton to 10 ton.

Jib cranes are very popular used in workshops for jib cranes can increase working efficiency, lower workplaces injuries and improving safety.

Jib Crane design & Jib crane components

For the majority of jib cranes, there is a very basic crane design and construction. Jib cranes are simple to operate and durable with low breakdown time compared with workshop cranes, overhead cranes, and gantry cranes.

Jib crane components and terms

  • Reach/Boom – the horizontal beam or arm or cantilever that the trolley with the electric / manual hoist travels on back and forth.
  • Mast/Pillar – the vertical beam or pillar or post used to support the boom on freestanding and mast systems
  • Movable Electric Hoist – the electric / manual hoist is used to lift up and down and transfer a load.
  • Trolley – the travelling trolley can be powered by motor or manual or, pneumatic, which carries crane hoists either chain hoist or wire rope hoist and the hook along the wire rope or along the entire length of the boom/ arm/ cantilever.
  • Rotation – on free standing jib cranes or pillar jib cranes and mast jib cranes, the rotation angle can be 360° of boom rotation. Wall travelling jib cranes, wall mounted jib crane and column-mounted jib cranes, the rotation angle can be 180-200°. .
  • Controls – Crane controls are used on motorized or air-powered jib systems, to control the rotation of the arm, and the movement of the trolley to lift up and down and travelling. The jib crane controls usually are push button controls and also the Multi-speed or variable speed controls are available.
  • Hook Height - The height which the loads will be lifted up
  • Rotation Stop –rotation stop is a devices to limit the crane’s motion before colliding with a nearby object or obstructions such as a wall, etc.
  • Environmental Considerations –Due to particular environment features, additional devices or features should be included in the design of jib cranes such as, resist corrosion features, explosion proof features, and heat, dust, dirt, or moisture resistant, etc.

Different Types of Jib Crane Systems

According to various crane designs, jib cranes can be grouped into different types, which can provide different capacities, advantages and disadvantages, etc. In the following, the main types of jib crane designs are presented for you to get the right jib cranes for your applications.

Pillar jib crane with free standing design

Pillar jib crane - Dongqi free standing jib crane design

Pillar jib crane - Dongqi free standing jib crane design 

  • Pillar jib crane system can be used together with the overhead crane systems and also can be used in the open air independently.
  • Pillar jib crane called free standing jib crane is one of the most commonly used jib crane which can be installed indoor and outdoor.
  • The jib cranes can be used outdoors at marinas or loading docks, and indoors use for machining and assembly operations.

Freestanding pillar jib crane

The main parameters and specifications of Jib cranes are as following;

Types of pillar jib cranes

Main designs of pillar jib cranes can be grouped into three types according to the way of how it be mounted or installed.

base-plate-mounted-free-standing-jib-crane-1.jpg

Base-Plate Mounted Jib Crane Design

Base-Plate Mounted Jib Crane Design, which is one of the most common and easies way to install the free standing jib cranes. The pillar or mast of jib crane is bolted to a base plate which is fastened on the reinforced concrete foundation.

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Foundation/Insert Mounted Jib Crane Design

Foundation/Insert Mounted Jib Crane Design: The foundation jib crane designs is to weld a steel plate at the bottom of the pillar or mast, which is anchored during the first-pour concrete footing, whereas, the pillar is supported by a second concrete pour with no need of gussets.

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Sleeve-Insert Mounted Jib Crane Design

Sleeve-Insert Mounted Jib Crane Design: The jib crane sleeves with a welded steel plate is anchored by first pour concreted footing whereas, during the second pour, the pillar is and the pillar is in second inserted into the sleeve, leveled, and then welded in place. The sleeve insert mounted jib crane designs makes the relation of the jib cranes possible and at same time to keep the pillar with no damages.

Advantages of pillar jib cranes:

Free standing design, largest capacity, longest spans, and greatest rotation angle compared with other types of jib crane designs.

Disadvantages of pillar jib cranes

Most expensive jib crane systems compared with other jib crane designs

Permanent mounted solutions due to freestanding jib cranes are among the most expensive systems and the most special foundation that is required to anchor and secure the crane and support the load during a lift.

Foundationless Jib Cranes

Foundationless jib cranes is also belong to the group of free standing jib cranes. However, the jib crane is mounted on a slab bolted by 6" reinforced concrete for indoor use. The foundationless jib cranes can be installed everywhere in the facility as long as the location meets the requirements of the jib crane manufacturer for the These types of jib crane systems don't require a special poured foundation and can be installed almost anywhere in a facility as long as the area meets the requirements of the manufacturer.

Due to the foundationless design, the jib cranes of this types can be installed easier and faster, and also can be relocated within a facility.

Advantages of foundationless jib cranes are cost-effectiveness, and high portability, and wide applications. Disadvantages of foundationless free jib cranes are they have a much lower capacity than typical freestanding jib cranes with a poured foundation.

Mast Type Jib Cranes

  • Mast jib crane is one of the cost-effective alternative to freestanding jib crane systems due to the foundationless designs.
  • Mast jib cranes is supported by the 6” of reinforced concrete and the additional support from an existing overhead support beam or structure.

Full cantilever jib crane v.s. Drop cantilever jib crane

full-cantilever-jib-crane-1.jpg

Full Cantilever Jib Crane Designs

Full Cantilever Jib Crane Designs: When there is no no overhead obstructions, the full cantilever jib crane is used The boom or the jib arms is mounted on the top of the mast or pillar, enabling the jib cranes which provides maximum lifting capability and maximum clearance underneath.

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Drop Cantilever Jib Crane Designs

Drop Cantilever Jib Crane Designs: The boom or arm can be “drop mounted” due to the side plate connection designs, which provides clearance for overhead obstructions right above the top of the mast.

Mast jib cranes are similar to freestanding jib crane systems and also can be used for the same type of heavy-duty/high-productivity applications. What is different is the mast jib cranes require an overhead beam or support structure to provide support besides the foundation.

Portable jib cranes 

Portable jib crane for sale. The portable jib crane, also called mobile jib crane, movable jib crane is one type of flexible crane, which is one of the most economical lifting crane for short distance material handling.

Portable jib crane for sale - Dongqi jib crane for sale

Portable jib crane for sale - Dongqi jib crane for sale 

  • Portable jib crane rated load: 0.125-0.5t
  • Portable jib crane base width:1200-1400mm
  • Portable jib crane stand bar width: 1018-1218mm
  • Portable jib crane L&h: 3000mm
  • Portable jib crane H: 3700-3900mm

Wall Mounted Jib Cranes

Wall mounted jib crane - Dongqi jib crane design

Wall mounted jib crane - Dongqi jib crane design

Wall mounted jib crane is used along structurally adequate walls or support columns of the building. The wall mounted jib crane systems also can be used independently or work together with the monorails or monorail or overhead bridge crane.

Advantages of wall mounted jib cranes

A wall-mounted jib crane system saves the room in your workshop for there is no need of the floor and foundation support. What is more, the wall mounted jib crane can provide maximum clearance under and above the arm for it can be installed closely underside of the lowest ceiling obstruction.

Wall mounted jib crane is very flexible, which can swing around /under obstructions, or fold out of the way of overhead cranes to make sure the production of the workshop.

Wall or column-mounted jib cranes can accommodate:

  • Spans ranging from 8-30’
  • Capacities up to 5 tons
  • 180°-200° rotation
  • Types of mounted jib cranes

The wall jib cranes systems can be classified into wall mounted jib cranes and column mounted jib crane based on the object they are mounted.

wall-cantilever-jib-crane.jpg

Wall Cantilever Crane Design

Wall Cantilever Crane Design: Wall mounted cantilever cranes offer the maximum amount of room, above and below the pillar, and also the full-cantilever design is available.

tied-rod-jib-crane-for-sale.jpg


Tie-Rod Jib Crane Design

Tie-Rod Jib Crane Design is the most economical crane designs which provides hoist coverage along walls or building columns. The crane arm is supported by a wall bracket and single tie-rod and makes hoist the travel on the arm or beam.

Disadvantage of using a wall mounted jib crane or column mounted jib crane is that it cannot be rotated in the angle of full 360°. A column or support is needed to bear the loads.

Wall travelling jib cranes

Wall travelling jib crane - Dongqi jib crane design

Wall travelling jib crane - Dongqi jib crane design

  • Lifting capacity: 0.5-16t,
  • Lifting height: 6-30m,
  • Working class: A3.

The wall travelling jib crane can increase your plant productivity by quickly moving small loads in long lateral movement without taking up floor space.

How to select the jib crane for your application?

The following factors needs to be considered when selecting the right jib cranes for your applications:

  • Duty Cycle/Classification: Select the duty cycle or service duty classification for the jib crane, which will guarantee the durability of the crane and crane parts to fulfill the requirements.
  • Area of rotation: Freestanding jib crane and mast jib cranes offer 360-degree rotation; wall mounted jib cranes and wall travelling jib cranes offer 180-degree rotation.
  • Height under Boom refers to the distance from floor to underside of jib crane’s boom. Also the dimensions of the hoists should be considered when the lifting height to be confirmed. Overall jib crane height to be considered to be free from the overhead crane obstructions.
  • Actual working span needed: The working (or hook) distance is roughly the length of the boom minus ½ trolley length at each end.
  • Power requirements: Power, manual or air? And other factors such as application environment indoor use or outdoor use, etc.

 

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