22 Ton Single Girder Overhead Crane

A 22 Ton Single Girder Overhead Crane is mainly composed of the following components:

Main Girder

The primary load-bearing structure of the crane.

Usually fabricated from high-strength structural steel.

Supports the electric hoist and trolley.

End Carriages

Installed at both ends of the main girder.

Support the bridge structure and connect it to the crane traveling wheels.

Allow the crane to travel along the runway rails.

Electric Wire Rope Hoist

Provides the vertical lifting and lowering function.

Includes a lifting motor, gearbox, rope drum, wire rope, hook, and braking system.

Rated capacity: 20 tons.

Hoist Trolley

Carries the electric hoist.

Moves the load horizontally along the main girder.

Equipped with trolley wheels, drive mechanism, and motor.

Crane Traveling Mechanism

Drives the entire crane bridge along the runway.

Includes traveling motors, gearboxes, wheels, shafts, and transmission components.

Lifting Hook Assembly

Connects the crane to the load.

Generally includes a hook, hook block, pulley, and safety latch.

Wire Rope

Transfers the lifting force from the hoist drum to the hook block.

Selected according to the rated load, lifting height, and working class.

Electrical Control Panel

Controls the lifting, trolley traveling, and crane traveling functions.

Contains contactors, relays, circuit breakers, overload protection, and other electrical components.

Control System

Available with pendant push-button control, wireless remote control, or operator cabin.

Variable-frequency control can be provided for smoother starting and stopping.

Braking System

Provides controlled stopping and load holding.

Includes lifting and traveling brakes according to the crane configuration.

Limit Switches

Protect the crane against excessive lifting or traveling.

Includes upper/lower lifting limits and trolley/crane travel limits.

Crane Wheels

Installed on the end carriages.

Transfer the crane load to the runway rails and enable longitudinal movement.

Buffers

Installed at the ends of the crane bridge.

Reduce impact when the crane approaches the end stops of the runway.

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Runway Electrical System

Supplies electrical power to the moving crane.

May include conductor rails, cable reels, or festoon cable systems.

Safety Devices

Overload limiter

Emergency stop

Travel limit switches

Lifting limit switch

Protective covers

Phase-loss and overcurrent protection

Audible/visual warning devices

Sketch

Main technical

Advantages of 22 Ton Single Girder Overhead Crane

High Lifting Capacity
With a rated capacity of 22 tons, the crane can safely handle heavy machinery, steel products, industrial equipment, and other large loads.

Compact Single-Girder Design
The single-girder structure is relatively lightweight and compact, helping reduce the overall steel consumption and supporting structure requirements.

Cost-Effective Solution
Compared with a double-girder crane of similar capacity where technically suitable, the single-girder design can offer lower manufacturing, installation, and maintenance costs.

Efficient Material Handling
The crane provides lifting, lowering, trolley travel, and bridge travel, allowing loads to be moved efficiently throughout the working area.

Flexible Configuration
The crane can be customized according to the customer's requirements, including:

Span

Lifting height

Working class

Lifting speed

Traveling speed

Control method

Power supply

Easy Operation
Pendant push-button control, wireless remote control, or operator cabin control can be selected according to the working environment.

Smooth and Precise Movement
Properly matched motors, gearboxes, brakes, and control systems provide stable lifting and traveling performance, which helps improve load positioning accuracy.

Reliable Safety Protection
The crane can be equipped with overload protection, lifting limit switches, travel limit switches, emergency stop systems, buffers, and other safety devices.

Easy Maintenance
The main mechanical and electrical components are readily accessible, making routine inspection, servicing, and replacement more convenient.

Wide Range of Applications
Suitable for manufacturing plants, steel fabrication workshops, warehouses, machinery assembly facilities, maintenance workshops, power plants, and construction-related industrial facilities.

Good Workshop Space Utilization
The overhead configuration keeps the floor area relatively clear, allowing other equipment and vehicles to operate beneath the crane.

Durable Construction
The main girder, end carriages, wheels, and other structural components are designed for repeated industrial lifting operations and can provide long-term service when properly maintained.

Applications of 22 Ton Single Girder Overhead Crane

A 22 Ton Single Girder Overhead Crane is designed for lifting, transporting, loading, unloading, and positioning heavy materials and equipment in industrial facilities.

1. Machinery Manufacturing

Used to lift and move:

Machine tools

Motors and gearboxes

Heavy mechanical components

Production equipment

Dies and molds

2. Steel Fabrication Workshops

Suitable for handling:

Steel plates

Steel beams

Pipes and profiles

Welded structures

Fabricated steel components

3. Equipment Assembly Plants

Used for positioning heavy components during:

Equipment assembly

Machine installation

Component alignment

Production-line operations

4. Warehouses

Used for:

Heavy material handling

Loading and unloading

Storage operations

Moving materials between workstations

5. Maintenance Workshops

The crane can lift heavy machinery and components during:

Equipment repair

Maintenance

Dismantling

Installation and replacement of parts

6. Power Plants

Suitable for handling:

Motors

Pumps

Generators

Valves

Heavy maintenance equipment

7. Automotive Industry

Used to handle:

Engine components

Dies and molds

Production equipment

Heavy automotive parts

8. Construction Equipment Manufacturing

Suitable for lifting and assembling:

Construction machinery

Hydraulic components

Large structural parts

Heavy equipment assemblies

9. Foundries and Metalworking Plants

Used for transporting and positioning heavy metal products, molds, tools, and production equipment.

10. General Industrial Facilities

The crane can be installed in indoor workshops, factories, warehouses, assembly halls, and maintenance facilities where heavy loads need to be moved safely and efficiently.

Typical material flow:

🏗️ Crane Production Procedure

The manufacturing of a 22 Ton Single Girder Overhead Bridge Crane follows strict quality control standards to ensure safety, durability, and performance.

🔩 1. Design & Engineering

Confirm customer requirements:

Lifting capacity (10 ton)

Span & lifting height

Duty class (A3–A5)

Perform:

Structural calculations

Load analysis

Deflection and stress checks

👉 Output:

General arrangement drawings

Manufacturing drawings

🔧 2. Raw Material Preparation

Select high-quality steel (e.g., Q235 / Q345)

Inspect materials for:

Thickness

Surface defects

Mechanical properties

👉 Only approved materials proceed to fabrication

🔨 3. Girder Fabrication

Cutting & Forming

CNC cutting of steel plates

Bending and shaping

Welding

Automatic submerged arc welding for main girder

CO₂ welding for auxiliary parts

Assembly

Assemble girder sections and stiffeners

👉 Ensures high structural strength and precision

🔍 4. Welding Inspection

Non-destructive testing (NDT):

Ultrasonic testing (UT)

Magnetic particle testing (MT)

👉 Detects internal and surface defects

⚙️ 5. Machining Process

Precision machining of:

Wheel sets

Bearing housings

End carriages

👉 Guarantees alignment and smooth operation

🧩 6. Component Assembly

Install:

End carriages

Electric hoist

Trolley mechanism

Drive systems

👉 Mechanical parts are aligned and secured

⚡ 7. Electrical System Installation

Install:

Control panels

Motors and wiring

Limit switches and safety devices

👉 Includes grounding and insulation checks

🎨 8. Surface Treatment & Painting

Shot blasting (rust removal)

Primer coating

Final paint finish (custom color available)

👉 Improves corrosion resistance and appearance

🧪 9. Testing & Quality Inspection

No-load Test

Check operation without load

Load Test

Static test: 125% rated load

Dynamic test: 110% rated load

Functional Testing

Hoisting, traveling, braking, and control systems

👉 Ensures compliance with safety standards

📦 10. Packaging & Delivery

Disassemble into transportable parts

Secure packaging for:

Girder

Hoist

Electrical components

👉 Delivered by container or bulk shipment

📋 11. Installation & Commissioning (Optional)

On-site installation guidance

Rail alignment and system setup

Final operational testing

Workshop view:

The company has installed an intelligent equipment management platform, and has installed 310 sets (sets) of handling and welding robots. After the completion of the plan, there will be more than 500 sets (sets), and the equipment networking rate will reach 95%. 32 welding lines have been put into use, 50 are planned to be installed, and the automation rate of the entire product line has reached 85%.