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| GANTRAIL - Products & Services - Rail Fixing Clips |
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| Crane rails need to be installed to high tolerances. Gantrail’s designs of infinitely adjustable clips allow very precise alignment of rails. The clips are also designed to carry the very high forces the cranes can apply to the rails. With types that can be bolted and others that can be welded, the customer has the choice of installation method. |
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Crane Rail Clips
Gantrail self locking crane rail clips are designed to align and securely fix the rail. The elastomer ‘nose’ applies a controlled force to the rail to restrain excessive movement. They must
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fit the support structure |
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fit the rail |
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carry the horizontal forces from crane wheels, perpendicular to the rail |
Gantrail sell clips that can be fixed by bolting or by welding.
Size for size welded clips give a stronger installation but bolted clips are often more convenient.
To select a suitable Gantrail clip
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Gantrail 9220 Clips used to fix a Container crane Rail in the UAE
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| 1. |
Find or estimate the horizontal force to be carried by the clip. It is assumed that all of the load from one wheel will occur at one clip. If the load is not known it may be assumed to be 15% of the vertical wheel load.
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| 2. |
Choose the style of clip you require – bolted or welded. These are identified with their respective strengths in the table.
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Find the dimensions of the foot of the rail to be used. See web page on Crane Rails.
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Check that the selected clip will fit the installation. The table gives the dimension that must be added to the foot width of the rail to give the minimum support width.
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Check that the other clip dimensions will suit the application by referring to the Gantrail data sheet for the clip. These only show a limited number of rail sections and Gantrail can advise on other sections.
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The choice between bolted clips and those with welded lower components is often based on industry practice and preference. The bolted clips are economical but size for size they are rated significantly lower on load carrying capacity. Thus heavy duty industries such as steel and aluminium manufacture tend to use welded base 9 series clips whereas lighter applications such as industrial buildings and high bay warehouses use 3, 7 or 2 series clips that are fixed by bolting. Gantrail are always happy to give guidance on this matter.
It is assumed that grade 8.8 bolts will be used. If welded studs or grade 4.6 bolts are used then their strength is only taken as 40% of grade 8.8 bolts.
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| Clip Name |
Horizontal force capacity kilo Newtons |
Dimention to be added to rail foot |
Download Data Sheet in PDF format |
| Clips fixed by welding |
| 9220/20 |
200kN |
156mm |
download (112k) |
| *9216/08 |
130kN |
96mm |
download (132k) |
| 9120/15 |
120kN |
150mm |
download (132k) |
| *9116/08 |
55kN |
96mm |
download (128k) |
| 9116/10 |
40kN |
114mm |
download (140k) |
| Clips fixed by bolting |
| *7120/10 |
85kN |
95mm |
download (104k) |
| 3224/20 |
250kN |
170mm |
download (133k) |
| 3124/20 |
125kN |
170mm |
download (130k) |
| 3124/15 |
95kN |
147mm |
download (122k) |
| 3120/15 |
75kN |
147mm |
download (127k) |
| 3116/10 |
38kN |
100mm |
download (84k) |
| 2112/05 |
21kN |
77mm |
download (80k) |
* particularly suitable for narrow support structure
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Gantrail designate their clips according to a simple code that is shown in the diagrams below:
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| Gantrail 9120/15 Clip |
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Gantrail 3116/10 Clip |
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Gantrail clip and pad Product Application Questionnaire
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Gantry Railing Ltd, Sudmeadow Road, Hempsted, Gloucester GL2 5HG, England, UK
Tel: +44 (0) 1452 300688 | Fax: +44 (0) 1452 300198 | Email: info@gantry.co.uk
Copyright © Gantry Railing Ltd 2003 |
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