Telescoping Gantry Crane | Custom Outdoor Rail Travelling Portal Crane
Short Video Description
This video shows a telescoping gantry crane with a telescoping cantilever for extended hook coverage in outdoor material handling applications. The crane is designed as a single girder Goliath gantry crane with ground-mounted rails and a customized portal crane structure.
The outdoor rail travelling gantry crane can travel along ground rails while the telescoping cantilever extends the working range beyond the main gantry frame. This configuration is suitable for loading and unloading trucks, outdoor storage yards, fabrication plants, construction sites and material handling areas where additional hook reach is required.
Unlike a fixed cantilever, a telescoping cantilever gantry crane can provide adjustable hook reach according to the operating position. The telescoping mechanism, main girder, gantry legs, trolley and travelling system are engineered together according to the required load, extension length and working cycle.
For a custom outdoor portal crane, important design parameters include lifting capacity, main span, lifting height, telescoping length, rail gauge, travelling distance, duty class, wheel load, power supply and working environment. Yuantai Crane reviews these parameters together before finalizing the crane design.
Main Technical Specifications
| Item | Technical Specification |
|---|---|
| Crane type | Telescoping Gantry Crane / Single Girder Goliath Gantry Crane / Outdoor Rail Travelling Portal Crane |
| Rated capacity | 1 – 20 ton+, customized according to lifting requirements |
| Girder design | Single welded girder with customized telescoping cantilever |
| Main span | 7.5 – 35 m+, customized according to site layout |
| Lifting height | 6 – 20 m+, customized according to required hook height |
| Telescoping cantilever | Customized extension length according to required hook reach |
| Telescoping operation | Manual / electric / motorized telescoping mechanism according to crane design |
| Hoisting system | Electric wire rope hoist / electric hoist trolley |
| Duty class | ISO A3 – A6 / FEM 1Am – 3m, selected according to working cycle |
| Rail gauge | 6 – 35 m+, customized according to crane and foundation design |
| Travelling distance | 20 – 500 m+, according to outdoor rail layout |
| Hoisting speed | 3 – 12 m/min, single speed, two speed or VFD |
| Trolley speed | 20 – 40 m/min, VFD available |
| Crane travelling speed | 20 – 40 m/min, customized according to duty requirements |
| Wheel arrangement | 4 / 8 wheels or engineered configuration according to calculated wheel load |
| Rail | P38 / P43 / P50 / QU70 / QU80 or rail selected according to wheel load |
| Control | Pendant / Radio Remote / Operator Cabin |
| Power supply | 380V / 50Hz / 3Ph standard; 400V, 415V, 440V, 460V and 60Hz available |
| Safety devices | Overload limiter, lifting and travelling limit switches, emergency stop, buffers, travel limits and warning alarms |
| Outdoor protection | Weather-resistant electrical protection, protective coating and wind protection according to site conditions |
| Working temperature | Typically -20°C to +40°C, customized for special environments |
| Applications | Outdoor storage yards, steel yards, fabrication workshops, construction sites, truck loading areas, machinery assembly and general material handling |
| Yuantai Crane engineering experience | Yuantai engineers the main girder, telescoping cantilever, gantry legs, hoist, trolley, wheels, rails and foundation loads as one complete portal crane system. |
How Does a Telescoping Gantry Crane Extend Its Working Range?
A telescoping gantry crane uses an extendable girder or cantilever mechanism to increase the hook working area beyond the main gantry frame. This allows the crane to reach loading, unloading or storage positions that are outside the standard crane span.
The telescoping cantilever can be designed for a specific extension length according to the required hook position. The extension mechanism must be checked together with girder strength, deflection, wheel reactions, stability and foundation loads.
For an outdoor rail travelling gantry crane, the telescoping system works together with crane travelling and trolley movement. This gives the operator more flexibility when handling materials across a large yard.
Single Girder Goliath Gantry Crane with Telescoping Cantilever
A single girder Goliath gantry crane is supported by two gantry legs and travels on ground-mounted rails. Adding a telescoping cantilever provides additional hook reach without extending the entire crane runway.
This configuration can be useful where trucks, storage racks, casting areas or loading positions are located outside the main crane span. The portal crane structure and telescoping mechanism are customized according to the actual site layout.
FAQ: Telescoping Gantry Crane with Telescoping Cantilever
Common questions about telescoping gantry cranes, single girder Goliath cranes, outdoor rail travelling gantry cranes and customized portal cranes.
1. What is a telescoping gantry crane?
A telescoping gantry crane is a gantry crane equipped with an extendable girder or cantilever that increases the available hook working area.
It is useful when the crane needs to reach loading or unloading positions outside the main span. Yuantai Crane can customize the telescoping length, lifting capacity and gantry structure according to the application.
2. What is a telescoping cantilever gantry crane?
A telescoping cantilever gantry crane uses an extendable cantilever to move the hook beyond the main gantry frame. Unlike a fixed cantilever, the telescoping section can be designed to provide adjustable hook reach.
The extension length is selected according to the required working position, load capacity, structural strength and operating cycle.
3. Can a single girder Goliath crane have a telescoping cantilever?
Yes. A single girder Goliath gantry crane can be designed with a telescoping cantilever when additional hook reach is required.
Yuantai Crane checks the main girder, telescoping mechanism, gantry legs, trolley, wheel loads and foundation as one complete crane system.
4. What is the advantage of a telescoping outdoor gantry crane?
The main advantage is additional adjustable hook coverage. A telescoping outdoor gantry crane can reach loading areas, trucks or storage positions beyond the normal crane span.
This can reduce the need for additional lifting equipment in applications where material handling positions change across the yard.
5. What information is needed for a telescoping portal crane quotation?
For a custom telescoping portal crane, provide the lifting capacity, main span, lifting height, required telescoping length, hook positions, rail gauge, travelling distance, duty class and site layout.
A simple drawing showing the normal and extended hook positions can help Yuantai engineers determine the correct telescoping configuration.
6. Is a telescoping gantry crane suitable for outdoor use?
Yes. A telescoping outdoor gantry crane can be designed for outdoor yards, fabrication plants, construction sites and loading areas.
Yuantai Crane considers wind load, rain protection, corrosion protection, electrical enclosure, temperature, wheel load and rail foundation conditions when designing the crane for outdoor use.
7. What experience does Yuantai Crane have with customized gantry cranes?
Yuantai Crane has engineering and manufacturing experience with single girder gantry cranes, Goliath cranes, portal cranes, outdoor rail travelling gantry cranes and customized cantilever configurations.
For telescoping gantry crane projects, Yuantai engineers review the main girder, telescoping cantilever, hoisting system, gantry legs, wheels, rails, control system and foundation loads according to the customer's required hook coverage and working conditions.
Need a Custom Telescoping Gantry Crane?
Send us your lifting capacity, main span, lifting height, telescoping length, hook positions, rail gauge, travelling distance, working frequency and site layout.
Yuantai Crane can engineer a telescoping gantry crane, single girder Goliath gantry crane or outdoor rail travelling portal crane with a customized telescoping cantilever for your material handling application.
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Article by Bella ，who has been in the hoist and crane field since 2016. Bella provides overhead crane & gantry crane consultation services for clients who need a customized overhead travelling crane solution.Contact her to get free consultation.
Yuantai Cranes
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- Main Specifications - Capacity: 0.5–550 tons | Span: up to 40m | Speed: 0.8–12 m/min | Duty: A3–A7 | Power: 380–690V, 50/60Hz | Control: pendant/remote/cabin
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- Crane type:_____ . (e.g., overhead crane, gantry crane, jib crane)
- Max weight to lift:_____ tons. (e.g., 2t, 5t, 10t, 20t, 50t)
- Lifting height:_____ m. (How high does the hook need to reach?
- Workshop width (span):_____ m . (Distance between the two crane rails)
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- Control type:_____. (Pendant / remote / cabin Control)
- Power supply:_____. (Local voltage & frequency – e.g., 380V, 50Hz, 3-phase)
- What will it be used for?_____ (e.g., steel fabrication, concrete products, mold handling, general manufacturing, etc.)
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