Positioning Tube 34/48 Series
Conventional galvanized steel positioning tubes, models such as 34-1530/34-1600 and 48-2290/48-2850.
Specifications
| Model | 34/48 series (e.g. 34-1530, 48-2850) |
|---|---|
| Standard | TB/T 2075 series, Fittings for overhead contact system of electrified railway |
| Materials | Galvanized steel tube |
| Installation | Carries the locator on the cantilever, adjustable horizontally for stagger setting |
The 34/48 series are conventional positioning tubes in galvanized steel. They fix the locator and allow its horizontal adjustment, adding elasticity to the registration point — the workhorse tube of standard cantilever registration layouts.
Specifications
- Type: conventional positioning tube (galvanized steel)
- Model examples: 34-1530, 34-1570, 34-1600, 48-2290, 48-2850
- Standard: TB/T 2075 series
The model number encodes tube size and length — 34-class tubes for lighter registration duty, 48-class for heavier points, with lengths covering the common assembly dimensions. 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. Other lengths are available against your assembly drawings.
Frequently Asked Questions
What do the model numbers mean?
The first digits are the tube class (34 or 48) and the following digits the length in millimetres — for example 48-2850 is a 48-class tube of 2850 mm.
Which class should I choose?
Follow your cross-section drawing: 34-class suits lighter registration duty, 48-class heavier points; load-wise both are conventional steel tube designs.
Can I order other lengths?
Yes — beyond the model examples (34-1530 to 48-2850) we cut and finish to your assembly drawing lengths.
What finish is applied?
Hot-dip galvanizing as standard for the steel tube.
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
34-class for lighter duty, 48-class for heavier points; galvanized steel tube with full adjustment along the assembly.
Applications
Conventional Lines
Workhorse tube of standard registration.
Station Yards
Length range covers station reaches.
Model Range
34- and 48-class with many lengths.
Harsh Climates
Galvanized finish for outdoor duty.
