Cantilever Gantry Crane Project Drawing - MHO 5t-8m A5 with 2.5m Left Cantilever

A cantilever gantry crane is a gantry crane whose main girder extends beyond one or both legs, creating a usable hook reach outside the rail span. On this cantilever gantry crane drawing, there are two different cantilever measurements:

• 2.5m effective left cantilever — the usable hook reach beyond the left rail centerline. This is where the hook can actually travel and lift on the cantilever gantry crane.
• 3.0m left girder overhang — the physical length of the girder extending past the left leg. The extra 0.5m is structural (end stop, buffer, and trolley clearance) and is not usable lifting area.

The cantilever gantry crane drawing marks the hook limit at 2500mm left so you can plan where materials can be picked up outside the rail line. The 400mm right limit is the short overhang on the opposite side of this cantilever gantry crane.

The cantilever changes the load distribution on this cantilever gantry crane. When the trolley and hook travel out onto the 2.5m left cantilever, the load moment is carried by the left end carriage — which increases the wheel load on that side. That is why:

• The maximum wheel load rises to 76.3 kN (compared with 45.3 kN on the non-cantilever MHO 5t-8m A5)
• The total crane weight increases to 6.11 t (vs 5.21 t) because the cantilever gantry crane girder is longer and the structure is reinforced
• The P22 rail is still used, but the rail foundation must be designed for the higher concentrated load of the cantilever gantry crane

Always use the 76.3 kN figure — not the non-cantilever value — when designing your rail foundation for this cantilever gantry crane.

This must be confirmed by Yuantai engineering for your specific duty cycle on the cantilever gantry crane. In general:

• The 5t rated capacity applies within the main span between the two rails of the cantilever gantry crane
• On the cantilever, the allowable load may be reduced depending on how far the trolley travels out and how often it operates there
• The ISO A5 duty class assumes intermittent use — continuous full-load cantilever operation would require a higher duty class and a different cantilever gantry crane structural design

Tell Yuantai your actual cantilever load and frequency of use so the girder and end carriage of the cantilever gantry crane can be verified for that condition.

Six numbers on this cantilever gantry crane drawing must match your site, or the crane will not fit or operate correctly:

If any of these six differ from your site, tell Yuantai before ordering — each change affects price and lead time on the cantilever gantry crane.

The 2.5m left cantilever on this cantilever gantry crane is designed for side loading and unloading outside the main rail line. Typical indoor uses include:

• Picking up drive components from a side transport aisle that runs parallel to the cantilever gantry crane rails
• Loading and unloading from a staging area or truck bay located outside the rail span
• Reaching machinery positioned beyond the left leg without moving the cantilever gantry crane along the rail
• Transferring parts between the main bay and an adjacent assembly station

This is the main reason to choose a cantilever gantry crane over a standard gantry crane — it extends the handling envelope without adding a second crane or a larger span.

Yes. This cantilever gantry crane drawing shows a 2.5m left cantilever with a 400mm right limit, but Yuantai customizes cantilever gantry crane configurations for each project:

• Right-side cantilever instead of left — mirror layout
• Double cantilever gantry crane — both sides extended (e.g. 2.5m + 2.5m)
• Longer single cantilever — up to approx. 6.0m per side, subject to structural verification
• No right overhang — if the right side must be flush with the leg

Send Yuantai your aisle layout and the side from which materials are loaded, and the cantilever gantry crane will be configured accordingly.

To avoid surprises at installation, these items are outside the cantilever gantry crane supply scope unless you specifically add them:

• P22 ground rail and rail fasteners
• Rail foundation designed for 76.3 kN wheel load
• Site power supply up to the crane isolator
• Erection crane and site lifting equipment
• Local electrical connection and permits

Because the cantilever increases the wheel load, the rail foundation is more critical on this cantilever gantry crane than on a standard gantry crane. Yuantai can provide foundation load drawings as an optional item — just state this in your enquiry.

Send these ten items and Yuantai will issue a free custom cantilever gantry crane CAD drawing, 3D model, and proposal within 24 hours:

1. Required lifting capacity (t)
2. Main rail gauge / span (m)
3. Required cantilever reach and side (left / right / both)
4. Required lifting height (m)
5. Bay length / travel distance (m)
6. Power supply (V / Hz / Ph)
7. Lifts per hour or hours per day (duty)
8. Indoor or outdoor environment
9. Longest load length and weight
10. Control preference: pendant, wireless, cabin, or dual

The more complete the list, the faster and more accurate the cantilever gantry crane drawing, 3D model, and quote.

This published cantilever gantry crane drawing and 3D rendering are a free technical reference — you may use them to plan your site and check fit. A project-specific cantilever gantry crane GA drawing and 3D model are also free for standard configurations. A design fee may apply only for complex site conditions, non-standard cantilever lengths, or specialized customization engineering. The cantilever gantry crane drawing remains the property of Yuantai Cranes: unauthorized copying, use, or manufacturing without written authorization is strictly prohibited.