1-4 messenger seat (1-4AG1-60/1-4AL70)
Specifications
| Model | 1-4AG1-60, 1-4AL70 |
|---|---|
| Drawing No. | 1-4AG1 |
| Standard | TB/T 2075.1-2024, OCS fittings for electrified railways — Part 1: Cantilever support assemblies |
| Installation | mounted on the top cantilever tube, supporting and fixing the messenger wire |
The 1-4AG1-60/1-4AL70 messenger seat for electrified railway OCS supports and fixes the messenger wire on the top cantilever tube.
Complies with TB/T 2075.1-2024, OCS fittings for electrified railways — Part 1: Cantilever support assemblies. Structure and connection dimensions are made to certified technical conditions, for use with standard OCS fittings.
Product Overview
The messenger seat is mounted on the top cantilever tube and fixed by U-bolt clamping; its wire carrier and clamp cover grip the messenger wire reliably while allowing moderate rotation about the horizontal axis, accommodating small movements of the suspension point with temperature and load and improving messenger wire loading. The related 1-4AL70 fits Φ70 aluminium cantilever tubes on 250km/h＜v≤350km/h aluminium cantilever systems. The company holds CRCC railway product certification.
Key Features
- fit matchingΦ60 tubediameter, U-bolt clamping, easy installation
- wire carriercan rotating moderately about the horizontal axis, adapting to messenger wire position changes
- clamp groove curvature matches the messenger wire for reliable grip without damage
- body is corrosion-treated with standard insulator-side mating dimensions
Compliance & Quality Control
Complies with TB/T 2075.1-2024, OCS fittings for electrified railways — Part 1: Cantilever support assemblies. Controlled under CRCC railway product certification and the ISO9001 quality management system, with incoming material inspection, key-process inspection and final factory inspection batch by batch before delivery.
Operating Conditions & Typical Applications
For lines of up to 200km/h and 200-250km/h (supplied by class). Typical use is supporting and fixing the messenger wire in section and station cantilever assemblies, used with top tubes, sleeve single-eyes etc.
Selection & Service
The company provides from selection calculations, drawing confirmation to volume supply, on-site technical guidance end-to-end service, We can provide model recommendations and custom solutions based on line conditions and erection drawings. For technical support and commercial inquiries, please call0375-6051688.