3-8 Suspender Hook
Forged hook with U-bolt, fixed on the flat cantilever, carrying the upper end of the tube suspender.
Specifications
| Model | 3-8 |
|---|---|
| Drawing No. | 3-8 |
| Standard | TB/T 2075.3-2024 — Part 3: Limit-type positioning devices |
| Tensile Failure Load | Working 1.5 kN · Sliding ≥2.25 kN · Breaking ≥4.5 kN |
| Materials | Forged steel, hot-dip galvanized |
| Installation | Bolted to the flat cantilever tube by U-shaped clamp, receiving the upper end of the tube suspender rope |
The 3-8 suspender hook is fixed on the flat cantilever tube and receives the upper end of the 3-7B tube suspender rope, hanging the outer end of the positioning tube at its design height and level. The forged hook body carries a hanging bend that the rope's end eye simply drops into, making fitting and removal tool-light.
Load ratings are the backbone of the part: maximum working load 1.5 kN, sliding load not less than 2.25 kN, breaking load not less than 4.5 kN. The U-shaped clamp with double bolts fixes the hook anywhere along the cantilever tube, so the suspension point follows the assembly drawing.
Design Features
- Working load 1.5 kN; sliding load ≥2.25 kN; breaking load ≥4.5 kN
- Forged hook body with hanging bend — rope eye drops in and out easily
- U-bolt double-bolt fixing, position adjustable along the cantilever tube
- Common part with the tube suspender rope and tube clamp
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.
Henan Chuangwit Railway Equipment Co., Ltd. supplies this locator with selection calculations, matched fittings and site technical guidance for traction power projects. Maximum working load is 1.5 kN, sliding load at least 2.25 kN and breaking load at least 4.5 kN — sized for the tube suspender duty with a comfortable reserve. By a U-shaped clamp with double bolts around the flat cantilever tube; the position along the tube follows the assembly drawing and can be re-set. The suspender rope's end eye drops into the forged hook's hanging bend — no pin needed, so fitting and removal are quick. The 3-7B tube suspender rope and the positioning tube clamp at the tube end; the 3-8 hook is the upper anchor on the cantilever side.Frequently Asked Questions
What loads can the 3-8 hook carry?
How is it mounted?
How does the rope attach?
Which parts complete the suspension?
Performance
Operating Conditions
Outdoor service at OCS registration points on mainline, high-speed and station structures, subject to suspension, wind, ice and dynamic pantograph loads as defined by the OCS design.
Mechanical Performance
Forged hook carries the tube suspender load with 3× working-load breaking reserve; U-bolt fixing holds position under vibration.
Applications
Mainline Registration
Standard upper anchor of tube suspension.
Station Yards
Position along cantilever fully adjustable.
Maintenance Access
Rope eye lifts out for quick service.
Standard Assemblies
Rated to the 3-7B rope family.
