For yards that handle both bulk material and general cargo and want one rail-mounted gantry crane to switch between grab and hook duties.

Henan Mine Crane mhze grab & hook gantry crane showing the primary gantry structure and electric-hoist lifting arrangement.
The MHZE grab-and-hook dual-purpose electric hoist gantry crane is a multi-function material-handling crane. The source describes a quick-change arrangement that allows the crane to switch between a grab for bulk materials such as coal or ore and a hook for general cargo.
Procurement should treat the grab and hook as two separate load cases. Bulk density and throughput drive grab selection, while the maximum hook load and rigging define general lifting duty. Attachment change frequency also matters because frequent mode changes can affect productivity.
| Product Model | MHZE |
| Type-Test Product Name | Electric Hoist Gantry Crane |
| Lifting Mechanism | Electric hoist |
| Lifting Capacity | Configured according to project requirements |
| Span | Configured according to rail / runway center distance |
| Lifting Height | Configured according to site and process requirements |
| Working Duty | Source-defined where stated; otherwise project-specific |
| Cantilever | Optional where source-supported and required by the process |
| Control Method | Configured according to source-supported options and project requirements |
Request A MHZE Grab & Hook Gantry Crane Quote
Quick-change arrangement supports switching between grab and hook modes.
Grab mode is intended for bulk materials such as coal and ore; hook mode is for general cargo.
Grab uses opening/closing rope and supporting rope coordination according to source description.
Any capacity, span, speed, wheel load, energy saving, duty or other guaranteed value that is not explicitly published on the source page should be engineered from the actual project and written into the technical agreement rather than assumed from a similar crane.
Useful when bulk material and general cargo share the same runway.
The source specifically describes a dedicated quick-change function between grab and hook.
Source-reported 3–5 second grab opening/closing supports repetitive bulk handling.
Core mechanisms are designed for quicker replacement.
A dual-purpose solution can make sense when neither duty alone justifies a separate gantry crane.
Official source image associated with the MHZE Grab & Hook Gantry Crane, showing the dual-purpose gantry crane or material-handling arrangement. |
Official source image associated with the MHZE Grab & Hook Gantry Crane, showing the dual-purpose gantry crane or material-handling arrangement. |
| Main Girder / Bridge | Selected from the product structure, span, load, duty and site environment. |
| Gantry Legs / Semi-Gantry Support | Ground-supported or building-integrated according to the specific model. |
| Electric Hoist / Hoist Trolley | Provides lifting and cross travel; arrangement depends on the product configuration. |
| Gantry Travel System | Moves the crane along the ground rail or combined semi-gantry runway. |
| Cantilever / End Structure | Configured only where outside-span hook coverage is required. |
| Electrical & Control System | Configured for source-supported control modes, site power and project safety requirements. |
| Model | MHZE |
| Product Type | MHZE Grab & Hook Dual-Purpose Electric Hoist Gantry Crane |
| Type-Test Product Name | Electric Hoist Gantry Crane |
| Capacity | Project-specific |
| Span | Project-specific |
| Lifting Height | Project-specific |
| Runway / Travel Length | Project-specific |
| Hoisting Speed | Project-specific unless source-stated in a special section |
| Cross / Gantry Travel Speed | Project-specific |
| Working Duty | Project-specific unless source-stated |
| Cantilever | Project-specific where applicable |
| Control Method | Project-specific |
| Power Supply | According to site electrical conditions |
| Outdoor Protection | According to wind, rain, dust, temperature and corrosion conditions |
Source-confirmed product facts:
Buyer-defined items:
| Coal / Ore Yards | Bulk grab handling with hook mode available for other loads. |
| Mixed Cargo Storage | Alternating between loose materials and packaged / fabricated loads. |
| Industrial Yards | One crane supporting production, bulk transfer and maintenance. |
| Loading Areas | Grab or hook selected to the truck, pile or cargo type. |
Provide maximum hook load and maximum grab suspended load separately.
Density, particle size, moisture and abrasiveness affect grab size and wear.
Required tonnes/hour determines grab volume and cycle-time targets.
If the attachment is changed many times per shift, specify the required changeover workflow.
Define how the crane prevents the wrong attachment mode or connection from being used.
| Hook Duty | Define the heaviest general load including rigging. |
| Grab Duty | Define bulk density, grab weight and required throughput. |
| Source Grab Response | 3–5 seconds per opening/closing cycle is source-stated; new-project cycle guarantees should be agreed separately. |
| Changeover | Define connection, isolation and interlock requirements for safe attachment switching. |
Before manufacture and installation, confirm rail center distance, runway length, rail elevation, foundation or building-runway capacity, available lifting height, cantilever clearance, power supply and erection access. Outdoor projects should also define wind, rain, dust and temperature conditions.
Maintenance should follow the supplied crane manual and actual duty. Routine work should cover the electric hoist, ropes, hooks / attachments, brakes, wheels, three-in-one drives where fitted, rail alignment, fasteners, limits and electrical protection. Semi-gantry cranes also require coordinated inspection of both the elevated runway and ground rail.
| 1 | Maximum hook load |
| 2 | Bulk material and loose density |
| 3 | Required grab volume if known |
| 4 | Grab self-weight |
| 5 | Required throughput |
| 6 | Attachment change frequency |
| 7 | Span |
| 8 | Lifting height |
| 9 | Runway length |
| 10 | Duty / cycles |
| 11 | Control method |
| 12 | Site layout / power supply / destination |
Use a full gantry when both sides should be ground-supported. A semi-gantry is relevant when one side can safely use an elevated building runway and the site benefits from a smaller floor footprint.
Only when the hook must reach outside the clear span, such as a truck loading or storage position. Cantilever length changes structural reactions and should be defined from the site layout.
Unless the source page explicitly publishes a value, capacity, span and lifting height should be engineered from the actual project.
A plan and cross-section showing rails, foundations or elevated runway, building / equipment clearances, loading positions and travel length will significantly improve quotation accuracy.
Many gantry applications are outdoors, but wind, rain, temperature, corrosion and anchoring requirements must be specified for the actual site.
Send your load, span, lifting height, travel length, site layout, rail / foundation or building-runway data, operating cycle and control requirements. Henan Mine Crane engineers can then review the correct gantry structure and prepare a project-specific configuration and quotation.