Gantry Crane Specification

A gantry crane specification typically includes comprehensive details about the crane’s design, capabilities, and operational parameters. These specifications can vary depending on the specific application requirements, operational environment, and industry standards. It is crucial to thoroughly review and understand the specifications to ensure the chosen gantry crane meets the desired functionality, performance, and safety criteria for its intended use.

Key Specifications of Gantry Crane

Lifting Capacity

The lifting capacity of a gantry crane is one of its most critical specifications. This refers to the maximum weight the crane can safely lift without exceeding its structural limitations. Gantry cranes come in a wide range of capacities, from small units capable of lifting a few tons for light-duty applications to large cranes capable of lifting several hundred tons for heavy industrial operations. When selecting a gantry crane, it is essential to consider the heaviest loads that will be handled to ensure the crane’s capacity meets or exceeds these requirements.

Span

The span of a gantry crane is the distance between the legs or supporting columns that define the working area beneath the crane. This specification determines the width of the area in which the crane can operate. The span should be sufficient to accommodate the layout of the work area, allowing the gantry crane to reach all necessary locations for lifting and moving loads. It’s crucial to consider the available space and layout constraints when determining the appropriate span for a gantry crane.

Lifting Height

Gantry cranes have a specified lifting height, which is the maximum height that the hook or lifting device can reach above the ground or floor level. The lifting height should be adequate to clear obstacles and reach the desired lifting locations within the work area. Factors such as building clearance, stack height of stored materials, and overhead obstructions must be considered when specifying the lifting height of a gantry crane.

Lifting Speed

The lifting speed of a gantry crane refers to how quickly the crane can raise or lower a load. This specification is typically measured in meters per minute (m/min) or feet per minute (ft/min). The lifting speed directly impacts the efficiency of loading and unloading operations. Faster lifting speeds can improve productivity but must be balanced with load stability and safety considerations.

Trolley Traveling Speed

Gantry cranes equipped with a trolley for horizontal movement have a specified travel speed for the trolley. The trolley traveling speed affects how quickly the crane can position the load along the span of the crane. A faster trolley travel speed can contribute to shorter cycle times and increased productivity.

Crane Traveling Speed

The crane traveling speed indicates how fast the entire gantry crane can traverse horizontally along its runway or track. This specification is essential for applications requiring quick positioning of the crane over different work areas. Bridge travel speed influences overall operational efficiency and should be matched to the specific handling requirements of the application.

Control System

Gantry cranes can be operated using manual, semi-automatic, or fully automatic control systems. Modern gantry cranes often feature advanced control systems that provide precise and intuitive operation. Control options may include radio remote control, cabin control, pendant control, or PLC (Programmable Logic Controller) systems. The choice of control system depends on operator preferences, safety considerations, and the complexity of the lifting tasks.

Power Supply

Gantry cranes are powered by electricity (AC or DC), diesel engines, or hydraulic systems. The choice of power supply depends on factors such as the availability of electrical infrastructure, environmental regulations, and operational requirements. Electric-powered gantry cranes are common for indoor applications due to their cleanliness and efficiency, while diesel or hydraulic-powered cranes are suitable for outdoor or remote locations.

Operational Environment

Specifications may include details about the operational environment in which the gantry crane will be used. Factors such as indoor or outdoor use, exposure to weather conditions (e.g., rain, wind, temperature extremes), and hazardous area classifications (e.g., explosive atmospheres) must be considered when selecting a gantry crane to ensure compliance with safety and performance standards.

Safety Features

Gantry cranes are equipped with various safety features to protect operators, workers, and equipment. Common safety features include overload protection devices, emergency stop buttons, limit switches to prevent over-travel, audible or visual warning systems, and anti-collision systems to prevent accidents during crane operation. Safety features are essential for ensuring compliance with regulatory standards and maintaining a safe working environment.

Compliance

Gantry cranes must meet specific regulatory and industry standards to ensure safe and reliable operation. Specifications should outline the applicable standards, such as ISO (International Organization for Standardization), OSHA (Occupational Safety and Health Administration), CMAA (Crane Manufacturers Association of America), or other local regulations. Compliance with standards ensures that the gantry crane is designed, manufactured, and operated according to recognized safety and quality guidelines.

Optional Features

Some gantry cranes offer optional features that enhance functionality, efficiency, and safety. Optional features may include variable speed controls for precise positioning, anti-sway systems to reduce load swinging, load monitoring systems for weight measurement, and specialized lifting attachments for handling specific types of cargo. Optional features can be customized based on the unique requirements of the application to optimize crane performance and versatility.

By thoroughly considering these specifications and factors when selecting a gantry crane, operators can ensure the crane is well-suited for its intended application, delivers optimal performance, and meets safety and regulatory requirements. Consulting with experienced crane manufacturers or suppliers can help identify the most suitable gantry crane configuration, thereby maximizing efficiency and productivity in material handling operations.

Different Gantry Crane Types

There are various types of gantry cranes, each with different specifications to suit diverse material handling needs. The main types include single beam gantry cranes, double beam goliath cranes, rail-mounted cranes, rubber-tyred cranes, and straddle cranes.

Single Beam Gantry Crane

A single beam gantry crane, also known as a single girder gantry crane, is suitable for applications requiring light to moderate lifting capacities and spans. These cranes are commonly used in workshops, warehouses, manufacturing facilities, and assembly lines for handling materials, components, and products. Given the variety of single girder cranes available, you can refer to the following single girder gantry crane specifications when making your choice.

Technical Parameter of AQ-MH Electric Hoist Gantry Crane
Capacity	t	3	5	10	16	20
Span	S(m)	8~35	8~35	8~35	8~35	8~35
Lifting height	m	6~18	6~18	6~18	6~18	6~18
Lifting speed	m/min	8（0.8/8）	8（0.8/8）	7（0.7/7）	3.5（0.35/3.5）	3.3（0.33/3.3）
Trolley speed	m/min	20(30)	20(30)	20(30)	18	14
Crane speed	m/min	20(30)	20(30)	20(30)	20(30)	20(30)
Work duty		A3~A4	A3~A4	A3~A4	A3~A4	A3~A4
Track type		P24	P24 P30	P30  P38	P38	P38  P43

Technical Parameter of  NMH European electric hoist Gantry Crane
Capacity	t	3.2	5	10	16	20
Span	S(m)	8~35	8~35	8~35	8~35	8~35
Lifting height	m	6~12	6~12	6~12	6~12	6~12
Lifting speed	m/min	0.8/5	0.8/5	0.8/5	0.66/4	0.66/4
Trolley speed	m/min	2~20	2~20	2~20	2~20	2~20
Crane speed	m/min	3~30	3~30	3~30	3~30	3~30
Work duty		A5	A5	A5	A5	A5
Track type		P24	P24 P30	P30  P38	P30  P38	P38  P43

Technical Parameter of AQ-BMH Electric Hoist Semi Gantry Crane
Capacity	t	3	5	10	16	20
Span	S(m)	8~30	8~30	8~30	8~30	8~30
Lifting height	m	6~18	6~18	6~18	6~18	6~18
Lifting speed	m/min	8（0.8/8）	8（0.8/8）	7（0.7/7）	3.5（0.35/3.5）	3.3（0.33/3.3）
Trolley speed	m/min	20(30)	20(30)	20(30)	18	14
Crane speed	m/min	20(30)	20(30)	20(30)	20(30)	20(30)
Work duty		A3~A4	A3~A4	A3~A4	A3~A4	A3~A4
Track type		P24	P24 P30	P30  P38	P30  P38	P38  P43

Technical Parameter of  MHZ Electric Single Girder grab Gantry Crane
Capacity	t	2	3	5	10
Span	S(m)	8-35	8-35	8-35	8-35
Lifting height	m	6~18	6~18	6~18	6~18
Lifting speed	m/min	16	16	16	14
Trolley speed	m/min	20(30)	20(30)	20(30)	20(30)
Crane speed	m/min	20(30)	20(30)	20(30)	20(30)
Grab volume	m³	0.5	0.5	0.75	1
Work duty		A3~A4	A3~A4	A3~A4	A3~A4
Track type		P24 P30	P30	P30  P38	P38  P43

Double Beam Gantry Crane

A double beam gantry crane, also known as a double girder gantry crane, is a heavy-duty lifting machine designed for handling large and heavy loads in industrial environments. These double girder cranes are commonly used in steel mills, shipyards, construction sites, and heavy manufacturing industries for lifting and transporting large machinery, equipment, and components.

Refer to the following double girder goliath crane specifications when seeking a suitable solution for your business.

Technical Parameter of  AQ-MG Double Girder Gantry Crane
Capacity	t	5	10	16	20	32
Span	S(m)	18~35	18~35	18~35	18~35	18~35
Lifting height	m	6~18	6~18	6~18	6~18	6~18
Lifting speed	m/min	11.5	8.5	7.9	7.2	6
Trolley speed	m/min	37.2	37.4	40.1	40	37
Crane speed	m/min	37.7	37.7	40.1	40.1	38
Work duty		A3-A7	A3-A7	A3-A7	A3-A7	A3-A7
Track type		P43	P43	P43 QU70	P43 QU70	P50 QU80
Capacity	t	50	75	100	160	200
Span	S(m)	18~35	18~35	18~35	18~35	18~35
Lifting height	m	6~18	6~18	6~18	6~18	6~18
Lifting speed	m/min	5.9	4.7	3.9	3.5	3.5
Trolley speed	m/min	31.3	38.2	33.9	22.5	29
Crane speed	m/min	44	38.3	32.3	28	28
Work duty		A3-A7	A3-A7	A3-A7	A3-A7	A3-A7
Track type		QU80	QU80	QU100	QU100	QU100
Capacity	t	250	320	400	450	500
Span	S(m)	18~35	18~35	18~35	18~35	18~35
Lifting height	m	6~18	6~18	6~18	6~18	6~18
Lifting speed	m/min	2.2	2.3	1.5	1.5	1.5
Trolley speed	m/min	28	16.6	10	10	11.5
Crane speed	m/min	50	28	18	18	16
Work duty		A3-A7	A3-A7	A3-A7	A3-A7	A3-A7
Track type		QU120	QU120	QU120	QU120	QU120

Technical Parameter of AQ-BMG Double Girder Semi Gantry Crane
Capacity	t	5	10	16	20	32
Span	S(m)	12~30	12~30	12~30	12~30	12~30
Lifting height	m	6~12	6~12	6~12	6~12	6~12
Lifting speed	m/min	11.5	8.5	7.9	7.2	6
Trolley speed	m/min	37.2	37.4	40.1	40	37
Crane speed	m/min	37.7	37.7	40.1	40.1	38
Work duty		A3~A6	A3~A6	A3~A6	A3~A6	A3~A6
Track type		P43	P43	P43 QU70	P43 QU70	P50 QU80

Technical Parameter of AQ-MDU Double Girder Gantry Crane
Capacity	t	10	16	20	32	40	50
Span	S(m)	18~35	18~35	18~35	18~35	18~35	18~35
Lifting height	m	6~18	6~18	6~18	6~18	6~18	6~18
Lifting speed	m/min	13.3	7.9	7.2	6	5.9	5.9
Trolley speed	m/min	37.4	40.1	40	37	31.3	31.3
Crane speed	m/min	41	40.1	44	40.1	40.1	40.1
Work duty		A5-A6	A5-A6	A5-A6	A5-A6	A5-A6	A5-A6
Track type		P43	P43  QU70	QU70	QU80	QU80	QU100

Technical Parameter of  AQ-MZ Grab Bucket Gantry Crane
Capacity	t	5	10	16	20
Span	S(m)	18~35	18~35	18~35	18~35
Lifting height	m	6~18	6~18	6~18	6~18
Lifting speed	m/min	39.3	39.3	32.7	30.7
Trolley speed	m/min	44.6	31.7	31.1	31.1
Crane speed	m/min	37.7	37.7	40.1	40.1
Work duty		A5-A7	A5-A7	A5-A7	A5-A7
Track type		P43   QU70	P43   QU70	QU70	QU70

Rail Mounted Gantry Crane

Rail mounted gantry (RMG) cranes are specialized lifting machines used in container terminals and rail yards for efficient cargo handling. These rail mounted cranes can be equipped with various spreaders to accommodate different container sizes. Refer to the following rail mounted gantry crane specifications:

Technical Parameter of AQ-RMG Track-type container Gantry Crane
Capacity	t	30	35	40.5	45	50
Span	S(m)	18~35	18~35	18~35	18~35	18~35
Lifting height	m	12.3~21	12.3~21	12.3~21	12.3~21	12.3~21
Lifting speed	m/min	12.5	9.5	10	9.8	9.2
Trolley speed	m/min	56	48	48	45	45
Crane speed	m/min	50	44.3	44.3	42	42
Container		20′   40′	20′   40′   45′	20′   40′   45′	20′   40′   45′	20′   40′   45′
Work duty		A6~A8	A6~A8	A6~A8	A6~A8	A6~A8
Track type		QU80	QU80   QU100	QU80   QU100	QU100   QU120	QU100   QU120

Rubber Tyred Gantry Crane

Rubber tyred gantry cranes are widely used in various applications, including precast yards, construction sites, manufacturing facilities, and other locations. These rubber gantry cranes offer high mobility and versatility, making them suitable for diverse material handling requirements.

Straddle Carrier Gantry Crane

Straddle carrier cranes are typically used for handling heavy bridge beams and other large, heavy-duty items at construction sites, prefab yards, and similar locations. Their robust design and high capacity make them ideal for managing substantial loads in various industrial settings.

Specifications of straddle carrier for precast yard

Technical parameters
Rated Lifting Capacity	50-900 ton
Span	5~40 meter
Maximum Lifting Height	5~20 meter
Steering Method	Independent steering driven by hydraulic cylinders
Travel Method	Tire-type hydraulic driving
Trolley Full Load Lateral Travel Speed	0~5 m/min
Trolley Empty Load Lateral Travel Speed	0~10 m/min
Trolley Empty Load Lifting Speed	0~6 m/min
Trolley Full Load Lifting Speed	0~3 m/min
Crane Full Load Travel Speed	0~10 m/min (on even ground)
Crane Empty Load Travel Speed	0~20 m/min (on even ground)
Operating Environment Temperature	0°C~+50°C
Operating Environment Wind Speed	Working ≤ 6 (wind speed 20 m/s), Non-working ≤ 11 (wind speed 42 m/s)

Specifications of straddle carrier for cross-line construction

Technical parameters
Rated Lifting Capacity	50-900 ton
Span	10~40 meter
Lifting Height (from ground to top of box beam)	5~40 meter
Steering Method	Independent steering driven by hydraulic cylinders
Travel Method	Tire-type hydraulic driving
Gradient	±2%
Trolley Full Load Lateral Travel Speed	0~5 m/min
Trolley Empty Load Lateral Travel Speed	0~10 m/min
Trolley Empty Load Lifting Speed	0~6 m/min
Trolley Full Load Lifting Speed	0~3 m/min
Crane Full Load Travel Speed	0~15 m/min (on even ground)
Transporter Empty Load Travel Speed	0~30 m/min (on even ground)
Operating Environment Temperature	0°C~+50°C
Operating Environment Wind Speed	Working ≤ 6 (wind speed 20 m/s), Non-working ≤ 11 (wind speed 42 m/s)

Why Gantry Crane Specification Is Important?

Gantry crane specification is critically important for several reasons:

• Safety: Detailed specifications ensure that the gantry crane is designed and built to safely handle specific loads within defined parameters. This includes factors like lifting capacity, span, and environmental considerations to prevent accidents and ensure operator safety.
• Operational Efficiency: Specifications such as lifting speeds, control systems, and power supply directly impact the crane’s efficiency in material handling operations. Optimized specifications lead to smoother and more productive workflows.
• Compatibility: Understanding the gantry crane’s specifications ensures compatibility with the facility’s layout, available space, and infrastructure. This includes considerations like span, height under hook, and power requirements.
• Equipment Longevity: Properly matching the crane’s specifications to operational demands helps extend its lifespan and reduce maintenance costs. Overloading or operating outside specified parameters can lead to premature wear and tear.
• Compliance and Regulations: Gantry crane specifications often align with industry standards and regulatory requirements. Ensuring compliance with these standards is crucial for legal and insurance purposes, as well as maintaining a safe work environment.
• Cost-Effectiveness: Selecting a gantry crane with appropriate specifications based on operational needs and workload can optimize investment costs. Oversized or underutilized equipment can lead to unnecessary expenses.
• Performance Optimization: Each specification contributes to the overall performance of the gantry crane. From lifting capacity to control systems, the right specifications enhance crane functionality and effectiveness in completing lifting tasks.
• Risk Mitigation: Comprehensive specifications mitigate risks associated with crane operations. Features like safety devices, environmental considerations, and duty classes are designed to minimize potential hazards and ensure reliable performance.

Gantry crane specifications play a crucial role in ensuring safe, efficient, and reliable crane operations. They serve as a guide for selecting, operating, and maintaining the appropriate equipment tailored to specific applications. By adhering to these specifications, businesses can achieve improved productivity, minimized downtime, and enhanced workplace safety. Understanding and following these specifications is essential for optimizing crane performance and successfully meeting operational goals.

Aicrane is professional and experienced in designing and manufacturing different gantry cranes to match various lifting requirements. If you are interested in knowing more information about gantry cranes or would like to get a crane for your business or new project, you can just contact us and we will provide you with a suitable and cost-effective crane solution to meet all your work needs.