Also searched as: Die-Cast Aluminum Cable Drum · Winding Drum
Cable drums convert spring torque into lifting force: die-cast aluminum drums grooved for wire rope, keyed to the torsion shaft so the cable winds evenly as the door travels [ESTIMATE]. The physics is direct — lift force at the rope equals spring torque divided by drum radius, F = τ/r [SOURCED https://www.firgelliauto.com/blogs/engineering-calculators/torsional-spring-calculator] — so drum groove profile and radius must match both the cable diameter and the spring design, or the door lifts unevenly.
RAX casts and machines cable drums in the same factory as the torsion springs, shafts and lifting cables they work with, so groove-to-rope fit and key-to-shaft fit are verified at assembly, not discovered on site. Drums ship as part of a matched lift kit with SGS material reports and traceable batch numbers.
Die-cast aluminum construction is a standard RAX product description; grooving/keying practice is industry convention [ESTIMATE]. Force relation F=τ/r is verified [SOURCED https://www.firgelliauto.com/blogs/engineering-calculators/torsional-spring-calculator]. RAX-specific claims are from the approved brand brief.
Custom width × height, RAL color and configuration. Large industrial doors from prototype to container-load, full flexibility on order quantity.
Validated against a 100,000-cycle fatigue testing protocol in our in-house lab.
ISO 9001:2015 and CE to EN 13241 / EN 12453, with SGS material reports.
English manual + wiring diagrams; operators pre-set before dispatch.
| Product | Cable Drum (also: Die-Cast Aluminum Cable Drum · Winding Drum) |
| Category | OEM Door Components |
| Size range | Drums keyed to your shaft diameter with groove sized to the cable Ø (commonly Ø3–6 mm wire rope [ESTIMATE]); radius matched to spring torque and door weight (F=τ/r [SOURCED https://www.firgelliauto.com/blogs/engineering-calculators/torsional-spring-calculator]). From 1 pair to container loads. |
| Materials | Die-cast aluminum body, grooved for galvanized wire rope, keyed bore to torsion shaft [ESTIMATE]; paired with 7×7 / 7×19 lifting cable constructions [ESTIMATE]. |
| Color / finish | Full RAL custom (common RAL9006 / 9010 / 7016 / 5010), wood-grain, PVDF, anodizing |
| Power | Not applicable — passive, unpowered component. RAX can supply matched operators, servo drives and smart controls from its full-category one-factory range. |
| Certification | CE EN 13241 / EN 12453; product-specific test data confirmed per project |
| Order | Custom engineered to your exact opening, specification and RAL color |
Groove must fit the rope diameter — common constructions are 7×7 / 7×19 at Ø3–6 mm [ESTIMATE].
Confirm shaft diameter and keyway; the drum must not slip under full torque [ESTIMATE].
Lift force is torque ÷ radius (F=τ/r [SOURCED https://www.firgelliauto.com/blogs/engineering-calculators/torsional-spring-calculator]) — specify with the spring, not separately.
Drums are left/right specific; confirm winding direction with your spring order.
RAX supports full private-label production of the Cable Drum: custom RAL panel colors, operator matching, packaging printing and installation-manual translation (EN/ES/FR/AR/RU). Start with an OEM sample and scale to container-load branded production. Custom molds, Tooling records are archived for up to 5 years — no extra tooling fee on repeat orders, all under strict NDA.
Industrial, commercial and garage doors and gates — the harmonized basis for CE marking.
Safety in use of power-operated doors — force limits and test methods for operators.
Wind (EN 12424), thermal (EN 12428), fire (EN 1634-1) etc. confirmed per product during enrichment.
Cable drums are die-cast aluminum, grooved for your wire rope (commonly Ø3–6 mm, 7×7/7×19 constructions [ESTIMATE]) and keyed to your torsion shaft, with radius matched to spring torque (F=τ/r [SOURCED https://www.firgelliauto.com/blogs/engineering-calculators/torsional-spring-calculator]). Send shaft diameter and cable spec, or order the matched spring + shaft + drum + cable kit; from 1 pair, full flexibility on order quantity.
We are a pure manufacturer and do not provide on-site installation. Every order ships with an English installation manual, wiring diagrams for your local installation team; operators are pre-set and tested before dispatch.
RAX holds ISO 9001:2015 and CE to EN 13241 (industrial door product standard) and EN 12453 (operator safety), with SGS material reports and product liability insurance. Components are engineered to help the finished door satisfy EN 12604 (mechanical aspects: strength, cycle durability, finger-pinch and spring/cable safety), and product-specific test data (fire, wind, thermal) is confirmed per project against the matching standard.
Yes. RAL panel colors, operator matching, packaging printing and manual translation (EN/ES/FR/AR/RU) are all supported, from an OEM sample to container-load branded production.
Sample 7–15 days; standard container 12–20 days; custom first order 20–35 days. Door body 2-year warranty, operator/motor 3 years (servo 5 years), with spare parts dispatched by DHL/FedEx within warranty.
Factory inspection report, 100,000-cycle fatigue test record, FAI / pre-assembly photos, English installation Manual + Wiring diagrams, CE Declaration of Conformity, and export packing (steel frame + pearl cotton + stretch film).
Or email info@raxdoor.com
Send your opening size and duty requirements — we reply with a proposal and lead time.
