Single Girder Overhead Crane 16 Ton Overhead Travelling Crane

 

Here's a detailed breakdown of theSingle Girder Overhead Crane 16 Ton Overhead Travelling Cranecomponents:

 

Main Structural Components

Main Girder (Single)

Welded box-type construction (standard)

European-style I-beam alternative (for lighter loads)

Typically spans 7.5-22.5 meters

End Trucks

Double-girder end carriages

Wheel configurations:

Single-wheel (for lighter loads)

Double-wheel (for heavier capacities)

Includes buffers and rail sweeps

Runway System

Pinned or bolted connections

Standard rail types:

QU24/QU30 (China standard)

A45/A55/A65 (DIN standard)

Hoisting Mechanism

Electric Hoist Unit

Standard CD1/MD1 wire rope hoist

Components:

Motor (dual-speed 8/0.8 m/min)

Gearbox

Drum assembly

Wire rope (6x19 or 6x37 construction)

Hook block (forged steel)

Trolley Frame

Steel welded construction

Trolley wheels (usually 4 wheels)

Trolley drive motor (typically 0.2-1.5kW)

Motion Systems

Long Travel Drive

End truck-mounted drive units

Components:

Drive motors (1.5-5.5kW)

Reduction gearboxes

Brakes (electromagnetic)

Drive wheels

Electrical Systems

Power supply:

Sliding collector system (standard)

Festoon system (optional)

Control panel with:

Contactors

Overload protection

Limit switches

Control Components

Operator Interface

Standard pendant control:

Up/down buttons

Left/right trolley movement

Forward/back crane travel

Emergency stop

Optional radio remote control

.

Safety Devices

Protection Systems

Load limiter (mechanical or electronic)

Upper/lower limit switches

Travel limit switches

Phase failure protection

Emergency stop button

Warning devices (buzzer/light)

Optional Components

Special Add-ons

Below-the-hook devices:

Electromagnets

Vacuum lifters

Spreader beams

Weighing systems

Anti-sway systems

Variable frequency drives

Cabin operation systems

Sketch

 

Main technical

 

1. Cost-Effective Solution

Lower initial cost compared to double girder cranes (30-40% cheaper)

Reduced installation expenses due to simpler structure

Energy-efficient operation with smaller motors

2. Space-Saving Design

Compact structure ideal for facilities with height restrictions

No need for elevated runways (can operate on standard building columns)

Low headroom versions available for tight spaces

3. Easy Installation & Maintenance

Modular components allow quick assembly

Fewer moving parts than double girder cranes = less maintenance

Standardized spare parts readily available

4. Flexible Operation

Pendant/remote/cabin control options

Smooth variable-speed operation (with optional VFD)

Precise load positioning for workshop applications

5. Reliable Performance

Durable welded girder (typically 10-15 year service life)

Failsafe braking systems (dual brakes on hoist)

Adaptable to harsh environments (dust-proof/anti-corrosion options)

 

1. Manufacturing & Assembly

Automotive plants – Engine/component handling

Machinery workshops – Equipment installation

Production lines – Material transfer between stations

2. Warehousing & Logistics

Loading bays – Container/pallet handling

Storage facilities – Stacking goods up to 20 tons

Distribution centers – Order picking systems

3. Light Industrial Use

Textile factories – Roll handling

Food processing – Bagged material transfer

Packaging plants – Finished product loading

4. Maintenance Applications

Power stations – Turbine maintenance

Repair shops – Heavy equipment servicing

Facility management – HVAC system installation

5. Specialized Environments

Clean rooms – Stainless steel versions

Cold storage – Low-temperature adapted models

Corrosive areas – Epoxy-coated components

 

1. Design & Engineering
Requirement Analysis: Confirm load capacity, span, lift height, automation level, control mode, and safety features based on customer needs.

Structural Design: Design the single girder main beam, end carriages, trolley, and hoist assembly using CAD software.

Electrical & Control Design: Develop control system schematics including PLC programming, motor selection, VFDs, sensors, alarms, and safety interlocks.

Simulation & Validation: Use FEA (Finite Element Analysis) for structural integrity and dynamic simulation for motion control.

2. Material Procurement
Source high-quality steel (Q345B or equivalent) for main beam and components.

Acquire motors, hoists, VFDs, PLCs, limit switches, and alarm systems from trusted suppliers.

Ensure all components meet relevant certifications and standards (ISO, CE, GB).

3. Main Beam Fabrication
Cutting: Steel plates cut to size using CNC flame/plasma cutting machines.

Forming: Roll or shape plates into the I-beam or box girder profile.

Welding: Perform welding of flanges, web, and stiffeners following welding procedure specifications (WPS).

Heat Treatment: Stress relief if necessary to reduce welding deformation.

Machining: Drill holes for end carriage and trolley mounting; machine crane rails if integrated.

Inspection: Check weld quality (X-ray or ultrasonic), dimensions, and surface finish.

4. End Carriage & Trolley Assembly
Frame Fabrication: Cut and weld end carriage frames and trolley frames.

Wheel Assembly: Mount wheels and fit bearings; assemble drive motor and gearbox.

Installation: Attach wheels to frames and mount brakes and limit switches.

Testing: Static and dynamic tests on wheels and brakes for smooth rotation and load bearing.

5. Hoist Assembly
Assemble wire rope or chain hoist on the trolley.

Install hook block, safety latch, load limiter, and load sensors.

Connect hoist motor, gearbox, brake, and encoders.

Conduct functional tests on hoisting speed, lifting capacity, and braking.

6. Electrical Wiring & Control System
Install motor cables, control cables, and communication lines.

Mount PLC, VFDs, contactors, and safety relays in the control cabinet.

Wire limit switches, alarms, emergency stop, and sensors.

Program PLC with automated control logic, safety interlocks, and diagnostics.

7. Surface Treatment
Cleaning: Remove rust, oil, and debris from all steel parts.

Primer Coating: Apply anti-corrosion primer.

Final Paint: Spray high-durability industrial paint to protect against wear and corrosion.

Curing: Allow proper drying time to ensure finish quality.

8. Pre-Installation Testing
No-Load Tests: Run crane, trolley, and hoist without load to verify movement, speed, and control.

Load Test: Perform rated load test per standards to ensure lifting capacity and structural integrity.

Safety Device Check: Verify operation of overload limiter, limit switches, emergency stop, and alarms.

Automation Validation: Test automated sequences, positioning accuracy, and sensor feedback.

9. Packing & Shipping
Disassemble parts if necessary for transport.

Protect components with rust-proofing, padding, and secure packing.

Prepare documentation including user manuals, maintenance guides, and test certificates.

10. Installation & Commissioning (On-Site)
Reassemble crane components at customer site.

Align crane rails and secure runway structure.

Connect power and control wiring.

Calibrate sensors and test automated control functions.

Train operators and maintenance personnel.

Hand over documentation and certification.
 

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%.