Electric Hoist Gantry Crane L Model

Description

The Weihua L-type electric hoist gantry crane is an economical lifting device launched by Weihua Group for the light and medium-sized material handling market. It is used in conjunction with wire rope electric hoists of models such as CD1 and MD1, and is a small to medium-sized rail-mounted gantry crane. Named for its inverted "L"-shaped outriggers, this product is a classic model in the L-type single-girder gantry crane family, perfectly combining the lightweight advantages of a single-girder structure with the ingenious design of the L-shaped outriggers in terms of overall height.

This product is a general-purpose crane with a lifting capacity ranging from 5 to 10 tons (main hook), a suitable span of 12 to 30 meters, a maximum lifting height of 12 meters, and a working class of A5. It is suitable for working environments from -20℃ to +40℃. The product can be widely used for loading, unloading, or grabbing materials in open-air freight yards, warehouses, and along railway lines.

In terms of structural design, the L-type electric hoist gantry crane adopts a single main beam off-center box girder structure. The gantry mainly consists of a main beam, two legs (one rigid and one flexible design is used when the span is ≥30m), a trolley running track, and a lower crossbeam connected by high-strength bolts. The L-shaped leg design makes the overall height of the machine lower for the same lifting height requirement, effectively saving costs and making it particularly suitable for working environments with height restrictions.

In terms of control methods, the L-type electric hoist gantry crane offers three modes: ground operation, remote control, and cab operation, allowing users to flexibly choose according to their working environment and operating habits. With its compact structure, light weight, low cost, simple operation, and safe and reliable operation, it is an ideal choice for small and medium-sized enterprises and open-air freight yards to achieve mechanized material handling.

Parameter

Lifting capacity				↑	5				10
Span				m	16	20		30	16	20		30
Lifting Height				m	9				9
Travelling mechanism	Travelling Speed		Ground	m/min	20				20
			cab		20 30 40				20 30 40
	Motor		Ground		YZR132M2-6/4X2		YZR160M1-6/6.3x2		YZR160M1-6/6.3x2		YZR160M2-6/8.5x2
			cab		YZR160M1-6/6.3x2		YZR160M2-6/8.5x2		YZR160M1-6/6.3X2		YZR160M2-6/8.5x2
	Reducer				ZSC400			ZSC500	ZSC500 ZSC500
	Wheel diameter			mm	400			500	500
Electric hoist	Type				CD, MD,				CD1 MD
	Lifting speed			m/min	8 0.8/8				7 0.7/7
	Travelling speed			m/min	20				20(30)
	Motor		Lifting		ZD 41-4/7.5 ZDS,0.8/7.5				ZD,51-4/13 ZDS,1.5/13
			Travelling		ZDY 21-4/0.8				ZDY,21-4/0.8x2
working duty					A4				A4
Steel track Recommended					P38				P38 P43
Power source					380V 50Hz				380V 50Hz
Crane Weight		Ground		Kg	16500	20000		26500	22000	26500		37000
		cab		Kg	17500	21000		27500	23000	27500		38000
Max Wheel Load				KN	80	90		103	128	140		161
Basic Dimensions		L		mm	5000	6500		9000	5000	6500		9000
		L2
		H1			1120				1350
		H2			900	1000		1250	1100	1200		1600
		H2			8050/11050	8150/11150		8400/11400	8450/11450	8550/11450		8950/11950
		B			6900-8400	6900-8400		6900-8400	6900-8400	6900-8400		6900-8400
		B			6000-7500	6000-7500		6000-7500	6000-7500	6000-7500		6000-7500
		B2			4550-6050	4550-6050		4550-6050	4550-6050	4550-6050		4550-6050
		B3			800	800		900	800	800		900
		S			4600	6100		8500	4500	6000		8500
		S2			4600	6100		8500	4500	6000		8500

Feature&Advantages

1. L-shaped outrigger design – Low overall height, cost savings

The core competitiveness of the L-type electric hoist gantry crane stems from its unique L-shaped outrigger design (an inverted "L" shape). Compared to A-type (A-frame) outriggers, the L-shaped design achieves the same lifting height with a lower overall height, effectively saving manufacturing costs and installation space. This feature is specifically reflected in:

Low overall height: For a given lifting height, the L-shaped structure saves more space than A-type outriggers, making it particularly suitable for operating environments with height restrictions, such as those with aviation height restrictions or where adjacent factory buildings have height limitations.

Good structural stability: The outriggers are connected to the main beam and lower crossbeam via high-strength bolts, forming a stable gantry system. The reasonable trolley base distance ensures stable and reliable operation of the entire machine.

Rigid-flexible outrigger design: When the span reaches 30 meters or more, a rigid-flexible outrigger design is adopted, effectively adapting to temperature changes and manufacturing and installation errors, ensuring long-term stable operation of the equipment.

2. Compact and Lightweight Design – Low Weight, Low Wheel Pressure

The L-type electric hoist gantry crane incorporates lightweight and compact design principles in its structural design:

Single Main Girder Structure Advantages: Utilizing a single off-center box girder as the main girder simplifies the overall structure and significantly reduces weight compared to double main girder gantry cranes. This design advantage is particularly pronounced in the 5-10 ton lifting capacity range.

Low Wheel Pressure, Lower Civil Engineering Costs: The lighter weight directly reduces wheel pressure, lowering the requirements for the ground track foundation and effectively saving on civil engineering investment.

Convenient Manufacturing and Installation: The gantry steel structure uses high-strength bolt connections, allowing for modular transportation and on-site assembly, resulting in a short installation cycle and low labor costs.

3. Matching Electric Hoists – Reliable Performance and Flexible Configuration

L-type electric hoist gantry cranes, when used with Weihua CD1, MD1, and other models of wire rope electric hoists, offer excellent lifting performance:

CD1 Electric Hoist:

Single-speed lifting, lifting speed 8m/min (5t), 7m/min (10t)

Simple and reliable structure, economical price

Suitable for conventional material handling operations

MD1 Electric Hoist:

Dual-speed lifting (fast and slow), lifting speed 8/0.8m/min (5t), 7/0.7m/min (10t)

Slow speed For precise positioning and rapid application in routine handling

Suitable for scenarios requiring high lifting precision

Electric hoist running mechanism:

Matching ZDY121-4 type running motor (0.8kW)

Running speed: 20m/min or 30m/min

Compact structure, high transmission efficiency

4. Comprehensive safety protection system

Weihua L-type electric hoist gantry cranes are comprehensively designed with safety in mind:

Windproof safety devices: As outdoor operating equipment, the following windproof devices are standard or optional—rail clamps to prevent slippage in strong winds, and anchoring devices for secure protection in extreme weather.

Electrical safety protection: Standard configuration includes phase loss protection, grounding protection, and overload protection; good electrical connection sealing, adaptable to complex environments.

Multiple limit protections: The hoisting mechanism is equipped with upper and lower limit switches to prevent the hook from overwinding or hitting the top; the trolley and crane running mechanisms are equipped with travel limit switches to prevent over-travel.

Overload Protection: Equipped with an overload limiter, it monitors the lifting load in real time. When the load exceeds the rated lifting capacity, it automatically alarms and cuts off the lifting circuit.

5. Flexible Control Methods

The L-type electric hoist gantry crane offers multiple control methods to meet different operational needs:

Ground Operation: Controlled via a handheld switch, simple and intuitive operation, suitable for conventional operating scenarios.

Remote Control: Operated using a wireless remote control, allowing operators to work from the optimal viewing position, avoiding blind spots and improving operational safety and convenience.

Cabin Operation: For scenarios requiring long-term continuous operation, a cab operation mode is optional, providing better operating visibility and comfort.

Multiple Conductor Methods: The crane offers two conductor methods: cable and sliding contact line. Users can choose the appropriate method based on site power supply conditions and operational requirements.

6. Wide Adaptability Design – Suitable for Indoor and Outdoor Use

The L-type electric hoist gantry crane is designed with adaptability to different working conditions in mind:

Wide Temperature Range Operation: Can operate normally in ambient temperatures ranging from -20℃ to +40℃, adapting to the usage conditions in most parts of my country.

Suitable for both indoor and outdoor use: It can be installed in outdoor open-air freight yards for loading and unloading operations, and can also be used indoors in warehouses, workshops, and other locations for material handling.

Cantilever configuration options: The gantry structure is available in three configurations: double cantilever, single cantilever, and no cantilever, allowing for flexible selection based on site layout and operational needs.

7. Economic Advantages – High Cost-Effectiveness

As a light to medium-duty lifting equipment, the L-type electric hoist gantry crane has significant economic advantages:

Low Procurement Costs: Simplified structure and light weight; the single main beam design significantly reduces manufacturing costs compared to double main beam gantry cranes, making it an ideal choice for small and medium-sized enterprises.

Easy Installation Costs: Simple structure and high modularity; high-strength bolt connections shorten on-site installation time and reduce labor costs.

Low Operating Energy Consumption: Lightweight design reduces drive power requirements, resulting in lower long-term electricity costs.

Low Maintenance Costs: Electric hoists are standard components, facilitating maintenance and replacement; the simple gantry structure minimizes daily maintenance workload.

Application

1. Open-Air Freight Yards

Open-air freight yards are one of the most widely used application areas for L-type electric hoist gantry cranes. In various industrial raw material storage yards, finished product warehouses, building material markets, and other locations, this equipment undertakes key tasks such as loading, unloading, stacking, and transferring materials.

Typical Operations:

Loading, unloading, and stacking of steel (rebar, H-beams, steel pipes, wire rod, etc.)

Lifting and transporting timber (logs, planks)

Loading and unloading of stone (blocks, slabs)

Container transfer operations

Inbound and outbound handling of various building materials

Application Advantages: Open-air freight yards typically offer ample operating space but complex environmental conditions (sun exposure, rain, wind, sand, etc.). L-type electric hoist gantry cranes feature a simple structure, are easy to maintain, and, with windproof devices, can operate stably in various weather conditions. The L-shaped outrigger design keeps the overall height low, allowing for flexible operation even in freight yards with height restrictions. The full product series covers two commonly used tonnages: 5t and 10t, meeting the loading and unloading needs of most freight yards.

2. Railway Lines

Railway lines are another core application scenario for L-type electric hoist gantry cranes. This equipment is arranged parallel to the railway line for loading and unloading goods within train carriages.

Typical Operations:

Loading and unloading of steel goods (rails, steel pipes, profiles) by train

Railway arrival and departure operations for bulk materials such as timber and stone

Railway loading and unloading of containers

Railway transfer of various construction machinery

Application Advantages: Operations along railway lines have specific requirements for the span and lifting height of the equipment. The L-type electric hoist gantry crane, with a maximum span of 30 meters and a lifting height of 12 meters, can easily cover the loading and unloading area along the railway line. The product can be remotely operated, allowing operators to complete all loading and unloading operations from a safe position, ensuring both operational safety and improved efficiency.

3. Warehouses and Logistics Centers

Various warehouses, logistics parks, distribution centers, and other locations require frequent loading, unloading, stacking, and transfer operations of goods. The L-type electric hoist gantry crane is the ideal equipment for these scenarios.

Typical Operations:

Loading, unloading, and stacking of goods (pallets, boxes, bagged materials)

Inbound and outbound handling of heavy materials

Loading and unloading operations in truck beds

In-warehouse material handling

Application Advantages: Warehouse areas typically have high space utilization requirements and relatively narrow aisles. L-type electric hoist gantry cranes have a compact structure and light weight, allowing for flexible operation in limited spaces. Combined with ground control or remote control, operators can complete various loading and unloading operations from the optimal position, greatly improving warehouse operational efficiency. The gantry structure is available in double-cantilever, single-cantilever, and non-cantilever configurations to adapt to different warehouse layout requirements.

4. Small and Medium-Sized Factories and Workshops

Raw material warehouses, semi-finished product warehouses, and finished product warehouses in small and medium-sized factories such as machinery manufacturing and parts processing are important application areas for L-type electric hoist gantry cranes.

Typical Operations:

Loading and unloading of raw materials (steel, castings and forgings)

Transfer and handling of semi-finished products between processes

Finished parts unloading, packaging, and loading

Lifting and changing molds and tooling

Application Advantages: Small and medium-sized factories typically have limited investment budgets and require high cost-effectiveness in equipment. L-type electric hoist gantry cranes, with their affordable price, reliable and stable performance, and simple operation, are the preferred choice for these companies. Equipped with MD1 dual-speed electric hoists, they can achieve slow and precise positioning, meeting the requirements of precision assembly operations.

5. Ports, Terminals, and Stations

Small ports, inland river terminals, and stations require efficient and reliable loading and unloading equipment to complete cargo transshipment operations.

Typical Operations:

Loading and unloading of cargo from ships at the dock

Loading and unloading of cargo from train carriages

Container transshipment operations

Loading and unloading of general cargo

Application Advantages: Docks and stations typically operate in complex environments (waterfront operations, salt spray corrosion, etc.) and have a fast pace. L-type electric hoist gantry cranes are easy to operate and highly efficient, capable of quickly completing various loading and unloading tasks. For outdoor operations, additional windproof facilities such as rail clamps and anchoring devices can be configured to ensure safe operation in windy conditions.

6. Other Application Areas

In addition to the key areas mentioned above, L-type electric hoist gantry cranes are also widely applicable in the following scenarios:

Building Materials Markets: Loading, unloading, and stacking of building materials such as steel, timber, and stone.

Cement Products Plants: Production, transfer, and storage of precast components.

Recycling Stations and Scrap Metal Processing Plants: Loading, unloading, and transferring scrap steel and scrap metal.

Agriculture and Forestry: Lifting of large agricultural machinery and loading and unloading of timber.

Temporary Construction Sites: Material handling at construction sites, road construction sites, etc.

Company Strength

1. Company Overview and Industry Position

Henan Weihua Heavy Machinery Co., Ltd., founded in 1988, is a core holding subsidiary of Weihua Group. Headquartered at No. 18 Shanhai Avenue, Changyuan City, Henan Province, known as the "Capital of Lifting Machinery in China," the company boasts a registered capital of RMB 1.066 billion. It is a leading enterprise in China's crane manufacturing industry and one of the world's largest industrial crane manufacturers. As a national manufacturing single-item champion enterprise, Henan Weihua holds a significant position in the domestic and international lifting machinery industry.

2. Main Business and Product System

The company focuses on the research, development, manufacturing, and sales of bridge cranes, gantry cranes, electric hoists, and new intelligent lifting equipment. Product types cover multiple series including general-purpose bridge cranes, European-style cranes, metallurgical cranes, explosion-proof cranes, and port gantry cranes, meeting the complex operational needs of various industries. With its modular, lightweight, and intelligent design concepts, Henan Weihua's products are at the forefront of the industry in terms of structural performance, safety, reliability, and service life.

3. Application Areas and Market Coverage

Henan Weihua's products are widely used in many key sectors of the national economy, including machinery manufacturing, metallurgy, power energy, port logistics, railway transportation, petrochemicals, and construction engineering. The company's products not only sell well in all provinces, municipalities, and autonomous regions of China, but are also exported to more than 100 countries and regions in Southeast Asia, the Middle East, Africa, Europe, and the Americas, serving numerous Fortune 500 companies and key national engineering projects, earning a good international reputation.

4. Technology R&D and Quality Assurance

The company highly values ​​technological innovation and has established several high-end R&D platforms, including a national-level enterprise technology center, a postdoctoral research station, and the Henan Provincial Lifting Machinery Engineering Technology Research Center. In recent years, Henan Weihua has actively promoted intelligent and digital manufacturing transformation, accumulating over a thousand national authorized patents and participating in the formulation of multiple national and industry standards. In terms of quality management, the company has passed ISO9001, ISO14001, and ISO45001 international system certifications and has successively won numerous honors such as "China Famous Brand Product," "National Quality Benchmark," and "National Technological Innovation Demonstration Enterprise," establishing a comprehensive quality control system from raw materials to finished products.