European Single Girder Overhead Crane

Core Components: Gearbox, Motor, Gear

Place of Origin: Henan, China

Warranty: 1 Year

Weight (KG): 50000 kg

Video outgoing-inspection: Provided

Machinery Test Report: Provided

Selling Units: Single item

Single package size: 600X300X300 cm

Single gross weight: 200.000 kg

Control model: pendent control, wireless remote control, cabin control

Packing: According to client request

working voltage: 380V,400V,440V ect

1.Main Girder (Bridge Beam)
Material: Typically made from Q235B or Q345B steel (Fe37/Fe52 in European standards) for high strength and durability.
Design: Box-type square frame structure, optimized for lightweight rigidity and space-saving.
Manufacturing Process:
CNC-cut steel plates for precision.
High-quality automatic welding with NDT (Non-Destructive Testing) inspection.
Shot-blasting (Sa2.5 grade) for stress relief and corrosion resistance.

2.Hoist (Lifting Unit)
Type: Wire rope electric hoist (low-headroom design to maximize vertical space).
Motor: Premium brands like ABM (Germany) for reliability.
Features:
Dual-speed lifting (e.g., 0.8/5 m/min).
M5 working class (ISO standard) for heavy-duty cycles.
Safety brakes and overload protection.

Trolley (Traveling Mechanism)
Function: Moves the hoist along the girder.
Motor: SEW European brand gear motors for smooth, stepless control.
Wheels: Double-flanged or flat wheels with anti-friction bearings and derailment protectors.

3.End carriage

1)Drive Configurations
Single Drive (One Motor):
Only one end truck is motorized (cost-effective for small spans).
Requires a tie rod to synchronize movement.
Dual Drive (Two Motors):
Both end trucks are motorized (better for spans >15m).
More precise control, less wheel slippage.
2)Safety & Alignment Features
Limit Switches: Stops crane at runway ends.
Anti-Climb Devices: Prevents derailment.
Lubrication System: Reduces wheel and rail wear.
Rail Sweepers: Clears debris from tracks.

4.Crane travelling mechanism

Key Engineering Considerations
1)Drive Configuration Options:
Single-end drive: More economical, suitable for spans ≤15m
Dual-end drive: Better synchronization, ideal for >15m spans
2)Wheel-Rail Interface:
Standard steel wheels for most applications
Polyurethane-coated wheels available for noise-sensitive environments
Flange design prevents derailment
3)Power Transmission:
Direct motor-to-gearbox coupling
Chain or shaft connections for multiple drive points
Torque-limiting couplings for overload protection

5.Electrical System
Control Panel:
Siemens-branded components for reliability.
IP55 protection against dust/water.

Control Modes:
Pendant control, remote control, or cabin operation.
Variable frequency drives (VFDs) for smooth acceleration.

Safety Features:
Phase failure protection.
Emergency stop buttons and limit switches.

6.Crane wheel

1)Bearing & Lubrication
Bearing Type: Spherical roller bearing (22220 series)
Dynamic load rating: ≥150kN
C3 internal clearance for thermal expansion
2)Lubrication:
High-temperature lithium grease (NLGI 2)
Automatic lubrication system recommended
Regreasing interval: 400 operating hours

7.Crane Hook

Maintenance Requirements
1)Daily:
Check for cracks/deformation
Verify safety latch function
2)Monthly:
Measure hook throat spread (<5% increase)
Lubricate swivel mechanism
3)Annual:
Dye penetrant inspection
Bearing replacement (if play >1mm)

8.Motor

The crane is equipped with three independent motor systems:
1) Lifting motor - responsible for the vertical lifting of 10 tons of weight
2) Trolley running motor - controls the horizontal movement of the hook device along the main beam
3) Trolley travel motor - drives the entire crane to move longitudinally along the track

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9.Sound and light alarm system & limit switch

1)Sound and Light Alarm System
Purpose:
Provides visual and audible warnings to alert operators and nearby personnel of potential hazards or abnormal conditions during crane operation.
2)Limit Switches
Purpose:
Automatically stop or slow crane movement when it reaches preset boundaries to prevent collisions or over-travel.

10.Safety Devices

1. Overload Protection System
Automatically cuts off power if the load exceeds the crane's rated capacity, preventing structural damage.
Uses load cells or torque limiters for precise monitoring.
2. Limit Switches
Hoisting Limit Switch: Stops the hoist at preset upper/lower positions to prevent overtravel.
Trolley/Bridge Travel Limit Switch: Halts movement at the end of the runway or designated zones.
3. Emergency Stop Buttons
Installed on pendant controls, remote devices, and operator cabins for immediate shutdown in emergencies.
4. Anti-Collision Systems
Infrared/Wireless Sensors: Detect obstacles or other cranes to avoid collisions, especially in multi-crane environments.
Buffers and Bumpers: Absorb impact at the end of travel paths.
5. Phase Failure and Voltage Protection
Guards against power fluctuations or phase loss to prevent motor damage.
6. Braking Systems
Dual Brakes: Fail-safe mechanical brakes (e.g., on hoists and trolleys) ensure load stability during power loss.
Disc Brakes: Used in travel mechanisms for smooth stopping.
7. Warning Devices
Alarms and Strobes: Audible/visual alerts signal crane movement or emergency conditions.
8. Insulated Components
IP55-Rated Electrical Panels: Protect against dust and water ingress.
F-Class Insulation: Ensures motor durability in high-temperature environments.
9. Rail Safety Features
Rail Clamps: Secure the crane during maintenance or high winds.
End Stops: Physical barriers at runway ends.
10. Customizable Safety Options
Explosion-Proof Configurations: For hazardous environments (e.g., chemical plants).
Remote Monitoring: IoT-enabled diagnostics for real-time safety checks.

11.Control Mode

1)Pendant Control (Wired Push-Button Pendant)
Features:
Wired handheld control unit suspended from the crane.
Buttons for all functions: Hoist up/down, trolley left/right, bridge forward/backward.
Emergency stop (E-stop) button (mushroom-type, red).
IP65-rated enclosure (dustproof and water-resistant).
2)Radio Remote Control (Wireless)
Features:
Handheld wireless transmitter (2.4GHz frequency).
Range: Typically 50–100 meters (depends on warehouse layout).
Multiple safety channels to prevent signal interference.
Fail-safe design: Stops crane if signal is lost.
3)Cabin Control (Operator Cabin)
Features:
Mounted control cabin on the crane bridge.
Joystick & button controls for all movements.
Full visibility through reinforced glass windows.
Ergonomic seating & climate control (optional).
4)Automated/Semi-Automated Control (PLC-Based)
Features:
Programmable Logic Controller (PLC) for automated sequences.
Pre-set travel paths (for repetitive tasks).
Load positioning sensors (for precise placement).
Remote monitoring (via HMI or SCADA system).

Sketch

Main technical

Advantages of European Single Girder Overhead Cranes
Lightweight & Compact Design
Optimized for low-height workshops with space constraints, featuring a box-type girder made from high-strength steel (e.g., Q345B) for reduced weight without compromising durability.
Low headroom hoists maximize vertical lifting space, ideal for buildings with height limitations.

Energy Efficiency & Smooth Operation
Inverter-controlled movements (hoisting, trolley, bridge travel) ensure precise, jerk-free operation while reducing energy consumption.
SEW or ABM motors (European brands) enhance reliability and stepless speed control.

Customization & Flexibility
Adaptable to spans up to 32 meters and lifting heights up to 20 meters, with modular designs for varying workshop layouts.
Optional features: anti-sway systems, automated controls, and specialized attachments (e.g., grabs, spreaders).

Low Maintenance & Durability
CNC-cut steel components and NDT-inspected welds extend service life.
IP55-rated electrical systems and corrosion-resistant coatings suit harsh environments (e.g., coastal areas).

Safety & Compliance
Meets FEM, DIN, and ISO standards, with CE certification.
Integrated safety features: overload protection, emergency stops, and anti-collision sensors.

Manufacturing & Assembly Lines
Handles light- to medium-duty loads (125 kg–12 tons) for tasks like part positioning and conveyor loading.
Warehousing & Logistics
Efficient for palletized goods and container handling, especially in low-ceiling facilities.
Specialized Industries
Paper/steel mills: Corrosion-resistant models for humid environments.
Automotive/Electronics: Precision lifting with VFD controls for delicate components.
Outdoor & Heavy-Duty Use
Rain covers and reinforced girders for ports or construction sites.

1. Design & Engineering
Load Calculations – Structural analysis to determine girder dimensions, wheel loads, and deflection limits.
CAD Modeling – 3D design of the crane (main beam, end carriages, hoist trolley).
Standards Compliance – FEM 1.001, ISO 12485, or CMAA 70 specifications.
2. Material Procurement
Main Beam – Q235B/Q345B steel (cut to span length, typically 5–25m).
End Carriages – Fabricated from S355JR steel plates.
Wheels & Axles – 55Mn forged steel (hardened to HRC 50-55).
Electrical Components – Motors, brakes, and limit switches (CE/UL certified).
3. Main Girder Fabrication
A. Steel Plate Preparation
Laser/plasma cutting of steel plates.
Beveling edges for welding.
B. Welding & Assembly
Submerged Arc Welding (SAW) for longitudinal seams.
Box girder construction with internal stiffeners.
Post-weld heat treatment to relieve stress.
C. Machining
Drilling holes for trolley rails and connections.
Surface grinding for rail mounting area.
4. End Carriage Production
Frame Welding – Box-section design for rigidity.
Wheel Assembly –
Mounting forged steel wheels on shafts.
Installing spherical roller bearings (SKF/FAG).
Drive Unit Integration –
Motor, reducer, and brake coupling.
Alignment to ±0.5mm tolerance.
5. Hoist & Trolley Manufacturing
Trolley Frame – Welded steel with machined wheel paths.
Hoist Integration –
Mounting 10-ton electric wire rope/chain hoist.
Installing VFD for speed control.
Limit Switches – Upper/lower travel sensors.
6. Surface Treatment
Shot Blasting – Removes rust and scales.
Priming & Painting –
Epoxy primer (75μm).
Polyurethane topcoat (50μm, RAL color).
Anti-Corrosion Options – Hot-dip galvanizing (for harsh environments).
7. Electrical System Assembly
Control Panel – PLC, contactors, overload relays.
Wiring – Festoon system or conductor bars.
Safety Devices –
Emergency stop circuits.
Overload protection sensors.
8. Quality Testing
A. Dimensional Inspection
Beam straightness (±3mm over 10m).
Wheel alignment (±1mm).
B. Load Testing
Static Test – 125% SWL (12.5 tons) for 10 minutes.
Dynamic Test – 110% SWL (11 tons) with full travel.
C. Functional Checks
Brake performance (holds 150% load).
Limit switch activation accuracy.
9. Packaging & Shipping
Modular Disassembly – Main beam, end carriages, and electricals packed separately.
Protection – Waterproof wrapping for sea transport.
Documentation – Test reports, manuals, and certifications.
10. Installation & Commissioning
Runway Beam Alignment – Laser-leveled to ±2mm.
Crane Assembly – Bolt-up connection of modules.
Final Testing – Trial runs with actual loads.

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%.