Jib Crane

Product Specifications

Technical details and manufacturing context for Jib Crane

Definition

A jib crane is a type of overhead lifting equipment characterized by a horizontal jib (or boom) that rotates around a fixed vertical axis, typically mounted on a wall, column, or floor pillar. It provides material handling capabilities within a defined circular or semi-circular work envelope, making it ideal for localized lifting tasks in workshops, warehouses, and production lines where full overhead crane systems are impractical. The jib crane is a machine used in the fabricated metal product manufacturing industry, among others, for tasks such as positioning heavy components, loading and unloading machines, and assembly operations. Its design allows for efficient use of floor space, as the supporting structure is compact and the working area is limited to the radius of the jib. The crane typically consists of a vertical mast, a horizontal jib, and a hoist mechanism that travels along the jib. The mast provides stability and houses the slewing mechanism, which allows the jib to rotate. The hoist can be electric, pneumatic, or manual, depending on the application and load requirements. The load capacity, jib length, rotation angle, lifting height, and hoist speed are key parameters that must be selected based on the specific handling needs. For example, load capacities typically range from 0.5 to 5 tons, jib lengths from 2 to 10 meters, and rotation angles from 180 to 360 degrees. The crane is designed to operate within a temperature range of -20°C to 50°C, and the main beam material is typically Q235B or Q345B steel, with surface treatment such as sandblasting to Sa2.5 and a primer plus two coats of paint. The power supply is typically 220-690 V AC, with a control voltage of 24 V DC. The protection rating is IP54 to IP65, making it suitable for dusty and splash-prone environments. When selecting a jib crane, it is essential to verify model-specific values and standards with the legal manufacturer or supplier, as the information provided here is a general reference. The crane must be installed and maintained according to the manufacturer's instructions and relevant safety standards, such as ISO 4301-1 for load capacity classification. Regular inspections are necessary to ensure safe operation, including checking for wear on the hoist, slewing bearing, and structural integrity of the jib and mast. Failure to follow proper maintenance procedures can lead to equipment failure and potential hazards. Therefore, it is crucial to consult the manufacturer's documentation and adhere to all applicable regulations.

Working Principle

The jib crane operates through a combination of structural support and mechanical lifting mechanisms. The vertical mast provides stability and rotational capability, while the horizontal jib extends the reach. A hoist mechanism (electric, pneumatic, or manual) travels along the jib to position and lift loads. Rotation is achieved through a slewing bearing or pivot mechanism at the mast-jib connection, allowing the jib to swing through its designed arc (typically 180° to 360°). Load capacity is determined by the structural strength of the jib and mast, while reach is limited by the jib length. The hoist speed and trolley speed are controlled by the operator, and the slewing drive can be manual or electric. The crane's operation is limited by its rated capacity and working envelope; exceeding these limits can cause structural failure. The power supply and control voltage must match the installation's electrical system, and the protection rating ensures safe operation in the intended environment. The operating temperature range affects material selection, and the surface treatment protects against corrosion. Proper installation and alignment are critical for smooth rotation and safe lifting.

Common Materials

Structural Steel, Alloy Steel

Technical Parameters

Parameter	Typical range	Notes & selection driver
Load CapacityRequired	0.5–5 kg	Maximum safe working load that the crane can liftISO 4301-1
Jib LengthRequired	2–10 m	Horizontal distance from the mast center to the end of the jib
Rotation AngleRequired	180–360 degrees	Maximum rotational sweep of the jib (typically 180°, 270°, or 360°)
Lifting HeightRequired	2–8 m	Maximum vertical travel distance of the hoist hook from the floor
Hoist Speed	2–8 m/min	Vertical lifting/lowering speed of the hoist mechanism
Trolley Speed	10–20 m/min	Manual or electric
Slewing Drive	Manual or electric	Electric for frequent use
Power Supply	220–690 V AC	3-phase, 50/60 HzIEC 60038
Control Voltage	24 V DC	Safe extra-low voltageIEC 60204-32
Protection Rating	IP54–IP65	Dust and splash-proofIEC 60529
Operating Temperature	-20–50 °C	Below -20°C use low-temp steel
Main Beam Material	Q235B or Q345B	Q345B for cold climatesGB/T 700, GB/T 1591
Surface Treatment	Sandblasted Sa2.5, primer + 2 coats	Total DFT ≥ 120 μmISO 8501-1
Weight	500–3000 kg	Depends on capacity and length

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Mast/Column
Provides vertical structural support and houses the rotation mechanism

Material: Structural steel tube or I-beam
Jib/Boom
Horizontal arm that extends the reach and supports the hoist trolley

Material: Structural steel I-beam or box section
Slewing Bearing
Enables smooth rotation of the jib around the mast axis

Material: Alloy steel with ball or roller bearings
Hoist Unit
Electric, pneumatic, or manual lifting mechanism that raises and lowers loads

Material: Steel housing with electric motor or pneumatic components
Trolley
Moves the hoist along the length of the jib for load positioning

Material: Steel frame with wheels or rollers
Control System
Operator interface for controlling hoist movement, trolley travel, and rotation

Material: Electrical components in protective housing
Foundation/Base Plate Part
Secures the mast to the floor or wall for stability

Material: Steel plate with anchor bolts
Safety Hook
Load attachment point with safety latch to prevent accidental disengagement

Material: Forged alloy steel

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Jib Crane.

Manufacturers of Jib Crane

7 companies list this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

Dafang Crane

Henan, CN

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