Henan Mine Crane · Electric Overhead Travelling Cranes
EOT Crane
An EOT crane—short for Electric Overhead Travelling crane—lifts and transfers materials across a working bay using an electrically powered hoist, trolley and travelling bridge. Elevated runways support the bridge as it moves between loading, production and storage positions.
Henan Mine Crane manufactures single-girder, double-girder and underhung EOT cranes for workshops, warehouses, equipment assembly and maintenance. Match the crane to your load, building clearances and operating cycle, with the selected configuration and supply scope identified in the quotation.
FULL NAME
Electric Overhead Travelling
POWERED MOTIONS
Hoist, Cross Travel and Long Travel
BRIDGE OPTIONS
Single or Double Girder
SELECTION INPUTS
Capacity, Span, Lift and Duty
How Does an EOT Crane Work?
EOT crane, electric overhead crane and electric bridge crane commonly describe the same industrial arrangement. Its three motions position the hook within the working envelope:
Hoisting: Raise and Lower
The hoist motor, transmission, rope drum and hook system lift the suspended load. Required hook travel and handling accuracy guide the hoist arrangement and speed selection.
Cross Travel: Across the Bay
The trolley or travelling hoist moves along the bridge. This motion reaches pickup and placement points across the span, within the hook’s side approaches.
Long Travel: Along the Bay
Powered end carriages move the bridge along its runways. Runway length, end stops and crane dimensions determine the usable longitudinal coverage.
Workshop EOT cranes can transfer fabrications between machines, position assemblies or remove equipment for repair. Warehouse applications require access around stored goods and vehicle loading areas. Mark these handling routes on the building plan before selecting the bridge arrangement.
EOT Crane Technical Specifications
These selected product references provide a starting point for an EOT crane enquiry. Each row corresponds to the linked model or model family; the single-girder entries are specific examples from its capacity tables.
| Product Reference | Rated Capacity | Span | Lifting Height |
|---|---|---|---|
| Single-Girder EOT: 5 t Reference | 5 t | 7.5–28.5 m | 6, 9, 12, 18, 24 or 30 m |
| Single-Girder EOT: 10 t Reference | 10 t | 7.5–28.5 m | 6, 9, 12, 18, 24 or 30 m |
| LH Double-Girder Electric-Hoist EOT | 3–32 t | 7.5–31.5 m | 6–30 m |
| Single-Girder Suspended EOT | 1–10 t | 7.5–28.5 m | 6–20 m |
The unit t denotes a metric tonne. The final combination of capacity, span, lifting height and operating duty requires project confirmation. Maximum values in different columns are not automatically available together.
Complete the Technical Specification
- Highest and lowest hook positions, runway length, side approaches and end approaches.
- Typical and maximum loads, lifting attachment weight, operating shifts and handling cycles.
- Hoist, cross-travel and long-travel speeds, including any positioning requirement.
- Site voltage, frequency, phases, power connection and pendant, radio or cabin control.
- Crane and mechanism duty, design standard, environment, wheel loads and maintenance access.
Selection Considerations
01 / LOAD
Define the Lift
Provide the maximum load, typical load, dimensions and lifting points. Include the weight and arrangement of slings, lifting beams or other attachments when defining the required lifting capacity.
02 / SPACE
Check the Building
Supply a plan and cross-section showing runway spacing, runway elevation, roof members, columns and services. For existing facilities, identify obstructions and the condition of the supporting structure.
03 / DUTY
Describe the Work Cycle
List lifts per hour, travel distances and operating shifts. An assembly crane making occasional heavy lifts and a production crane handling loads repeatedly can require different mechanisms despite the same rated capacity.
04 / CONDITIONS
Define the Environment
State indoor or outdoor operation, temperature, dust, humidity and corrosion exposure. Hazardous atmospheres, hot loads and process attachments need their own equipment and protection requirements.
EOT Crane Compared with Other Industrial Crane Configurations
Single girder and double girder describe the bridge structure. Top running and underhung describe its connection to the runways. A hoist hanging below a beam does not make the whole crane an underhung design.
| Configuration | Arrangement | Selection Implication |
|---|---|---|
| Single-Girder EOT Crane | One bridge girder, commonly with a travelling electric hoist beneath it. | Compare the installed cost, hook height, side approaches and specified duty for workshop or maintenance handling. |
| Double-Girder EOT Crane | Two bridge girders supporting the selected hoist trolley. | Can accommodate different trolley layouts and hook elevations. Include the crane envelope, runway loading and access requirements in the comparison. |
| Single-Girder Underhung EOT | Bridge end carriages travel on the lower flanges of suitable runway beams. | Evaluate runway flange loading, suspension connections and the structure supporting those beams. |
| Multi-Support Underhung EOT | A suspended bridge arranged across several runway supports. | Suited to an engineered multi-rail layout. Support alignment and load distribution require coordinated design. |
| Gantry Crane | Travelling legs support the bridge, usually above ground-level runways. | Consider where elevated crane runways are unsuitable. Allow for legs, travel lanes, foundations and load clearance. |
Working Duty, Load Spectrum and Production Cycles
Rated capacity describes a lifting limit; duty selection also considers how the crane will be used over time. A larger capacity label alone does not establish suitability for continuous production.
Load Spectrum
Record how often loads are light, intermediate or close to rated capacity. Repeated near-capacity lifts create a different service requirement from occasional maximum lifts.
Mechanism Operating Time
Separate time spent hoisting, cross travelling and long travelling from the shift duration. Include repeated positioning movements, starts and any simultaneous motion required by the process.
Classification and Design Basis
Identify the applicable standard and the proposed duty for the crane and its mechanisms. Codes from different classification systems need an engineering assessment before they can be treated as equivalent.
For frequent handling or controlled placement, compare the frequency-conversion electric-hoist overhead crane configuration. Agree the load cycle and required positioning performance before selecting motors, drives and brakes.
Runway, Headroom and Building Integration
Span and Hook Coverage
Crane span follows the runway centreline spacing. The hook cannot normally reach those centrelines because the trolley and bridge have approach limits. Check every machine, loading point and storage position on the plan.
Headroom and Lifting Height
Show the highest required hook level relative to the floor and runway. Load depth, lifting gear, crane height, roof clearance and maintenance space all affect the usable lift.
Runway Loads and Supports
Provide the proposed wheel loads, wheel spacing and applicable horizontal reactions for structural review. Existing runway beams, rails, connections and supporting columns must suit the selected crane.
For a replacement EOT crane, survey the actual runway and building interfaces. Two cranes with the same lifting capacity can have different wheel loads, wheelbases, hook approaches and power requirements.
Electrical Supply, Speeds and Operator Controls
The electrical proposal should identify what is included for each motion. Variable-frequency drives can control acceleration and speed; anti-sway, automatic positioning and production-line interfaces are separate functions with their own requirements.
| System | Configuration Requirement |
|---|---|
| Hoist Speed | Select transfer and positioning speeds around the load and lifting task. Dual-speed or variable-frequency operation is specified for the selected hoist. |
| Cross Travel and Long Travel | Define these motions separately. Acceleration, deceleration, travel distance and load settling affect the handling cycle as well as maximum speed. |
| Electrical Supply | State site voltage, frequency, phases and earthing arrangement. Motors, brakes, transformers, controls and incoming protection must be coordinated with that supply. |
| Pendant, Radio or Cabin | Select around visibility and operator movement. With more than one control station, define control priority, changeover and the response to signal loss. |
| Power Distribution | Distinguish the runway power feed from power to the moving trolley. Conductor systems, festoons or cable-management arrangements are selected for their respective routes. |
Safety, Special Loads and Process Requirements
Match the protection schedule to the crane arrangement, operating environment and consequences of a fault. The quotation should distinguish required protections from additional process functions.
- Load and travel protection: identify overload protection, hoist limits, travel limits, braking, emergency stops and electrical protections, with their intended responses.
- Shared runways: assess crane separation, collision prevention and access during maintenance where multiple cranes operate in the same bay.
- Double-trolley EOT cranes: specify individual ratings, permitted shared loads, hook spacing and coordinated controls. Adding two hoist ratings does not establish an unrestricted combined lifting capacity.
- Grab overhead cranes: select the grab and crane together using material density, payload, attachment weight, discharge height and required throughput.
- Explosion-proof EOT cranes and metallurgical overhead cranes: define the hazardous-area classification or hot-material process before equipment selection. General workshop configurations cannot be assumed suitable for these duties.
Additional brakes, monitoring, anti-sway and redundancy arrangements depend on the specified risk and operating duty. Their purpose, scope and acceptance method should be recorded in the technical agreement.
Manufacturing, Inspection and Technical Documentation
Henan Mine Crane manufactures overhead lifting equipment for industrial material handling. The company’s factory facilities page shows its manufacturing workshops and crane structures.
For your EOT crane order, define the documents and inspections needed to connect the agreed specification with the delivered equipment:
- General arrangement drawing with capacity, span, hook levels, crane dimensions and runway interfaces.
- Component schedule and electrical diagrams identifying the supplied hoist, drives, controls and protection functions.
- Agreed material, fabrication and inspection records, including any specified weld examinations.
- Factory and site acceptance scope, operation and maintenance manuals, and a spare-parts list.
Agree witness points and acceptance criteria before manufacture. Any conformity documents must correspond to the ordered equipment and destination requirements.
Installation and Maintenance
Installation Preparation
Coordinate crane delivery with runway readiness, electrical availability, unloading access and assembly space. Identify the lifting equipment and site personnel needed for installation.
Commissioning and Handover
Agree alignment checks, control verification, protection checks and the applicable load-test scope. Identify responsibility for test loads, witnessing, records and operator familiarisation.
Maintenance Planning
Provide safe access and isolation arrangements for the hoist, ropes, brakes, wheels, drives and electrical system. Base inspection and lubrication schedules on the supplied manuals and actual duty.
For production-critical applications, identify essential spares and component replacement access before the crane enters service. Service arrangements, documentation language and on-site support belong in the agreed supply scope.
EOT Crane Price and Supply Scope
An EOT crane price depends on the selected load, span, lift, duty, mechanism arrangement and installation scope. Two quotations for a 10-ton crane can differ because they include different hoists, controls, runway equipment or site services.
Compare offers against the same specification and ask for the following scope items to be identified:
- Crane bridge, end carriages, hoist or trolley, controls and included protection functions.
- Runway beams, rails, support steelwork and electrical power distribution, with supply boundaries stated.
- Packing, transport, unloading, installation, commissioning and operator familiarisation.
- Inspection documents, required spares, service arrangements and delivery terms.
For a new EOT crane for sale, request a project quotation with the model configuration and exclusions clearly listed. Manufacturing and delivery timing should be confirmed against drawing approval, component availability and the destination.
EOT Crane FAQ
Request An EOT Crane Quote
Send Henan Mine Crane your required capacity, span, lifting height, working cycle and site power supply. Include the installation country, building drawing, load details and required supply scope so the proposal can address the equipment and its installation interfaces.