Aluminum Cantilever Support Assembly (300–350 km/h)
All-aluminum cantilever assembly for 300–350 km/h high-speed lines — lightweight tubes with aluminum fitting family.
Specifications
| Model | Series products (supplied per design drawing number) |
|---|---|
| Standard | TB/T 2075 series and the simplified (unified) technical requirements |
| Materials | Aluminum / hot-dip galvanized steel cantilever tubes, forged connectors |
| Installation | Suspended on the post-side insulator string; flat + inclined cantilever configuration |
The Aluminum Cantilever Support Assembly (300–350 km/h) is a complete cantilever support device for electrified railway overhead contact systems, mainly applied on 300–350 km/h electrified railways and also suitable for electrified lines at 250 km/h and below.
Composition
Aluminum flat cantilever, aluminum inclined cantilever, aluminum clamp seat, aluminum messenger wire seat, aluminum clevis single eye, aluminum support and tube cap.
The flat cantilever carries the messenger wire seat, the inclined cantilever provides the mounting reference for the positioning device, and the support member closes the load-bearing triangle. All connectors are forged for fatigue resistance and every tube carries anti-corrosion protection matched to the environment.
Supply and Quality Control
The product is manufactured under CRCC railway product certification and an ISO 9001 quality management system, with incoming material inspection, in-process control on critical operations and batch-by-batch final inspection before delivery. As a series product the assembly is supplied per design drawing number; interface dimensions, materials and type test documentation are confirmed with the customer before manufacture.
Henan Chuangwit Railway Equipment Co., Ltd. supports selection calculation, drawing confirmation, batch supply and site technical guidance for traction power projects.
Frequently Asked Questions
What does the assembly consist of?
The complete assembly is supplied as: aluminum flat cantilever, aluminum inclined cantilever, aluminum clamp seat, aluminum messenger wire seat, aluminum clevis single eye, aluminum support and tube cap. Components are matched in interface dimensions so the assembly bolts together on pre-assembly jigs or directly at the mast.
Which speed class does it cover?
It is mainly applied on 300–350 km/h electrified railways and also suitable for electrified lines at 250 km/h and below. Supply follows the design drawing numbers of the project, with the speed-class configuration confirmed at order stage.
How is the assembly mounted?
It hangs on the post-side insulator string in the flat-plus-inclined cantilever configuration; the base and insulator interface follows the mast type and the OCS cross-section drawings.
Can it be supplied to our project drawings?
Yes. The assemblies are series products supplied per design drawing number; Henan Chuangwit confirms interface dimensions, materials and test documentation against your drawings before manufacture.
Performance
Operating Conditions
Mainline and station OCS support structures, carrying suspension loads, wind loads and vibration through the post-side insulator string into the mast.
Mechanical Performance
Assembly strength covers the combined maximum ice and wind load cases; forged connectors give high fatigue resistance; hot-dip galvanized / aluminum construction suits long outdoor service.
Electrical Performance
The assembly carries the energized messenger wire at full line potential; insulation to the earthed mast is provided by the cantilever insulators (rod or string type) at the mounting interface.
Applications
300–350 km/h HSR
Lightweight aluminum set for high-speed duty.
≤250 km/h Lines
Also applicable on lower speed classes.
Reduced Dead Load
Aluminum tubes lower the load on masts.
Corrosion-Prone Areas
Natural aluminum oxide layer resists corrosion.
