Mh Type Outdoor Using Gantry Crane

Key Features for Outdoor Use

1. Weather-Resistant Construction

Corrosion Protection:

Galvanized steel or epoxy-painted surfaces to prevent rust.

Stainless steel bolts & hardware for longevity.

Sealed Electrical Components:

IP55 or higher protection for motors, controls, and wiring.

Waterproof pendant stations or radio remote controls.

2. Enhanced Stability for Outdoor Conditions

Wind Resistance:

Anti-sway design with reinforced bracing.

Anchoring systems (for fixed gantries) or rail clamps (for mobile types).

Robust Wheel/Rail System:

Heavy-duty steel wheels with flanges for outdoor rails.

Crane rails (P24/P38) for smooth movement on uneven ground.

3. Heavy-Duty Lifting Capacity

Typical capacity: 5 to 50 tons (custom designs up to 100T).

Low headroom design (if needed) for constrained spaces.

4. Power & Mobility Options

Electric-powered travel (3-phase AC) for smooth operation.

Diesel/hydraulic options for remote sites without electricity.

Manual push gantry (for lighter loads & infrequent use).

5. Safety Systems for Outdoor Use

Wind speed alarms (auto-shutdown at high winds).

Emergency brakes & anti-collision sensors (if multiple cranes operate).

LED work lights for night operations.

 

Comparison: Outdoor vs. Indoor MH Gantry Cranes

Feature	Outdoor MH Gantry Crane	Indoor MH Gantry Crane
Weather Protection	Galvanized/painted, IP55+	Standard paint, IP44
Wind Resistance	Reinforced bracing, anchors	Minimal bracing
Electrical Safety	Waterproof controls, sealed motors	Standard enclosures
Mobility	Heavy-duty wheels/rails	Light-duty or floor-mounted
Load Capacity	5-100T (heavy-duty)	1-20T (light/medium)

 

Place of Origin:Henan, China

Warranty:2 years

Weight (KG):60000 kg

Video outgoing-inspection:Provided

Machinery Test Report:Provided

Application:warehouses,factory and other place

Crane type:box type gantry crane

Travelling speed:20m/min

Lifting mechanism:Electric Hoist

Control method:Ground Control+ Remote Control (customized)

Working duty:A5

Working Temperature:-20~+40℃

Industrial voltage:380V50HZ3Phanse or other

Color:Customised

Customization:Accepted

 

MH Type Outdoor Single Beam Box Gantry Crane - Components Breakdown

An outdoor-rated MH (Electric Hoist) type single beam box gantry crane has specialized components designed to withstand harsh weather, heavy loads, and rugged environments. Below is a detailed list of its key structural and mechanical parts:

 

1. Main Structural Components

A. Box Girder (Main Beam)

Material: High-strength welded steel (Q235B/Q345B) with weather-resistant coating (galvanized or epoxy paint).

Design: Closed rectangular box section for maximum rigidity and wind resistance.

Features:

Internal stiffeners to prevent buckling under heavy loads.

Sealed joints to prevent water/dust ingress.

B. End Carriages (Legs/Supports)

Fixed or Adjustable Legs: Made from welded steel, often with reinforced bracing for stability.

Outdoor Wheel/Rail System:

Steel wheels with flanges (for rail-guided movement).

Rubber-tired wheels (for ground movement on flat surfaces).

Rail clamps to lock the crane in high winds.

C. Cross Beams & Bracing

Diagonal or horizontal reinforcement bars to prevent sway in windy conditions.

Bolted or welded connections for easy assembly/disassembly.

2. Hoisting & Trolley System

A. Electric Hoist (MH Type)

Wire Rope Hoist (EOT):

Capacity: 5T to 50T (or higher for custom designs).

Lifting Speed: 8-12 m/min (adjustable with VFD).

Motor Protection: IP55 or higher (dust/waterproof).

Chain Hoist (Optional): For lighter loads (1T-10T).

B. Trolley (Travel Mechanism)

Electric Trolley: Moves the hoist along the box girder.

Wheels: Forged steel with bearings for smooth travel.

Drive Motors: Weatherproof (IP55) with brakes.

                                         

3. Runway & Travel System (For Mobile Gantries)

A. Rail Track System (For Heavy-Duty Use)

Crane Rails (P24/P38): Embedded in concrete or steel sleepers.

Rail Clamps: To secure the crane when not in use.

B. Wheel & Drive System

Motorized Travel:

Travel Motors: AC 3-phase, IP55-rated.

Speed: 10-20 m/min (variable with VFD).

Manual Push (For Light Models):

4. Electrical & Control System

A. Power Supply

Festoon System / Cable Reel: For continuous power supply.

Diesel Generator Option: For remote sites without electricity.

B. Control Panel & Operator Interface

Weatherproof Pendant Control (IP65):

Wireless Remote Control (Optional): For safer outdoor operation.

C. Safety & Limit Devices

Overload Limiter: Prevents lifting beyond capacity.

Wind Speed Alarm: Auto-stops crane at high wind speeds (e.g., >20 m/s).

Emergency Stop Button: Instantly cuts power.

Anti-Collision System (For Multiple Cranes): Laser or radar-based.

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5. Additional Outdoor-Specific Features

A. Corrosion Protection

Hot-dip galvanizing or epoxy paint for rust prevention.

Stainless steel fasteners for longevity.

B. Environmental Adaptations

LED Work Lights: For night operations.

Drainage Holes: In box girder to prevent water accumulation.

Comparison: Outdoor vs. Indoor Components

Component	Outdoor MH Gantry	Indoor MH Gantry
Girder Coating	Galvanized/Epoxy Paint	Standard Paint
Electrical Rating	IP55/IP65	IP44
Wheels/Rails	Heavy-duty, rust-proof	Standard
Safety Features	Wind alarm, rail clamps	Basic limit switches

Sketch

Main technical

 

Superior Weather Resistance

Features galvanized steel construction and IP55/IP65-rated components to withstand rain, snow, dust, and saltwater corrosion

Sealed electrical systems prevent moisture damage in humid or coastal environments

Enhanced Structural Stability

Box girder design provides exceptional rigidity, minimizing deflection in windy conditions

Reinforced bracing system maintains stability even with heavy loads in open areas

Anti-sway technology ensures precise load positioning despite outdoor wind forces

Heavy-Duty Performance

Typical capacity range of 5-50 tons (custom designs up to 100T)

Low headroom design available for sites with height restrictions

High-grade steel construction resists deformation under continuous heavy use

Operational Flexibility

Multiple mobility options: rail-mounted, rubber-tired, or fixed configurations

Choice of electric (3-phase) or diesel/hydraulic power for remote locations

Adjustable span (10-30m) and lifting height (6-20m) to suit various site requirements

Advanced Safety Features

Wind speed monitoring system with automatic shutdown (typically at 20 m/s)

Rail clamps and anchoring systems for secure parking during storms

Overload protection and emergency brakes compliant with international safety standards

Low Maintenance Design

Corrosion-resistant materials reduce maintenance frequency

Easy-access service points for quick inspections and repairs

Modular components simplify part replacement in field conditions

 

Port and Shipyard Operations

Loading/unloading ship components (20-50T) and containers

Dry dock maintenance for ships and offshore structures

Handling bulk cargo in all weather conditions

Heavy Construction Projects

Bridge construction with precise girder placement (30-50m spans)

Power plant erection for turbine and transformer installation

Prefabricated concrete handling at construction yards

Steel and Metal Processing

Coil and plate handling in steel mills (5-30T capacity)

Scrap metal processing in recycling facilities

Foundry operations for mold and casting handling

Energy Sector Applications

Wind turbine maintenance (blade and nacelle handling)

Hydroelectric dam equipment installation and servicing

Transformer replacement in substations

Railway Infrastructure

Track panel installation (25-40m spans)

Bridge component assembly

Maintenance of way equipment handling

Mining and Heavy Industry

Ore processing equipment maintenance

Heavy machinery relocation in open-pit mines

Industrial plant turnaround services

 

The production procedure for a single beam traveling gantry crane involves several key stages, from design and material procurement to assembly, testing, and final delivery. Below is a step-by-step outline of the typical manufacturing process:

1. Design & Engineering
Customer Requirements Analysis: Determine lifting capacity, span, lifting height, duty cycle, and operating environment.

Structural Design:

Design the main girder (single box or I-beam structure).

Design end carriages (legs/wheels) and runway beams.

Select hoist/trolley type (electric or manual).

Load & Stress Calculations: Ensure compliance with standards (ISO, FEM, DIN, or ASME).

Electrical & Control System Design: Choose motors, brakes, limit switches, and control panels.

2. Material Procurement
Steel Plates & Profiles: High-quality Q235B/Q345B steel for main girders and supports.

Mechanical Components: Wheels, axles, bearings, gears, and couplings.

Electrical Components: Motors, cables, control panels, and safety devices.

3. Fabrication of Main Components
A. Main Girder Fabrication
Cutting: CNC plasma/oxy-fuel cutting for precision.

Welding: Automated submerged arc welding (SAW) for strong seams.

Straightening & Inspection: Ensure proper camber (pre-bend) and check for defects (UT/RT testing).

B. End Carriages & Legs
Frame Assembly: Welded steel construction with reinforced bracing.

Wheel & Bearing Installation: Machined wheels for smooth travel.

C. Hoist & Trolley
Pre-assembled Hoist: Electric chain hoist or wire rope hoist.

Trolley Frame: Fabricated to accommodate hoist movement.

4. Surface Treatment & Painting
Shot Blasting: Removes rust and improves paint adhesion.

Primer & Paint: Anti-corrosion coatings (epoxy + polyurethane).

5. Assembly
Girder & End Carriage Joining: Bolt or weld the main beam to legs.

Hoist/Trolley Installation: Mounted on the girder.

Electrical Wiring: Connect motors, controls, and safety devices.

6. Testing & Quality Control
Dimensional Inspection: Verify span, height, and alignment.

Load Testing:

Static Load Test: 125% of SWL (Safe Working Load).

Dynamic Load Test: 110% of SWL with operational checks.

Functional Tests: Travel, lifting, braking, and limit switch verification.

7. Disassembly & Packaging
For Shipment: Crane may be disassembled into modules (girder, legs, hoist).

Protective Packaging: Waterproof wrapping for sea transport.

8. Installation & Commissioning (On-Site)
Runway Preparation: Ensure level rails or ground support.

Reassembly: Bolt components together.

Final Testing: Operational checks under load.

9. Documentation & Delivery
Manual & Certificates: Include load test reports, CE/ISO certifications.

Training: Operator and maintenance guidance.

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%.