Chongqing Hengtairail Equipment Co.,Ltd.
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Railway Suspension System Elements of Yaw Damper
Product Overview
A hydraulic railway damper is a device designed to absorb and reduce shock impulses incurred when a railcar is in motion. Dampers also help reduce noise and track wear. They operate on diesel and electric locomotives, passenger mainline coaches, and diesel and electric multiple-unit trains. It can be divided into 4 categories. Primary Vertical damper, Secondary vertical/lateral damper,Yaw damper and Coupling damper. For here we will introuce yaw damper, it controls the sine wave effects of the bogie, increasing safety at medium and high speeds.
Product specification
| Type | Railway Suspension System Elements of Yaw Damper |
| Standard | TB/T1491 EN13802-2015 |
| Certificate | ISO 9001,CRCC, IRIS, EN15085-2 |
| Production ability | 10000 per month |
| Material | steel and rubber |
| Working temperature | -40℃-+70℃ |
| Unsymmetry | ≤10% |
| Size | Customized |
| Design lifetime | 10 years or 2.4*106, which comes first |
| Guarantee | 12 months |
Main Structure
1.rubber bush 2. Tube 3.Piston rod 4. Nut 5.Nut 6.Retainer 7.corrugated oil seal 8.Guide cover
9.Inner tube 10.Seat valve 11.Tube 12.o-seal 13.Piston 14.Piston ring 15.Bellow pot
Drawing of hydrauulic damper
Type
| Lmin | Lmax | D1 | D2 | D3 | D4 | D5 | Thread |
| 280 | 380 | 95 | 83 | 73 | 84.5 | 40 | 20*1.5 |
| 398 | 583 | 95 | 83 | 73 | 84.5 | 41 | 20 |
| 398 | 583 | 95 | 83 | 73 | 84.5 | 41 | 20 |
| 321 | 441 | 95 | 83 | 73 | 84.5 | 41 | 20 |
| 321 | 441 | 95 | 83 | 73 | 84.5 | 41 | 20 |
| 315 | 450 | 95 | 83 | 73 | 84.5 | 41 | 20 |
| 330 | 480 | 95 | 83 | 73 | 84.5 | 41 | 20 |
| 330 | 480 | 95 | 83 | 73 | 84.5 | 41 | 20 |
| 330 | 480 | 95 | 83 | 73 | 84.5 | 41 | 20 |
| 330 | 480 | 95 | 83 | 73 | 84.5 | 41 | 20 |
| 330 | 480 | 95 | 83 | 73 | 84.5 | 41 | 20 |
| 330 | 480 | 95 | 83 | 73 | 84.5 | 41 | 20 |
| 398 | 583 | 95 | 83 | 73 | 84.5 | 41 | 20 |
| 413 | 573 | 95 | 83 | 73 | 84.5 | 41 | 20 |
| 413 | 573 | 95 | 83 | 73 | 84.5 | 41 | 20 |
| 292 | 412 | 95 | 83 | 73 | 70 | 29.8 | 16 |
| 330 | 480 | 95 | 83 | 73 | 84.5 | 41 | 20 |
| 315 | 450 | 95 | 83 | 73 | 84.5 | 41 | 20 |
| Lmin | Lmax | D1 | D2 | L0 | d |
| 752 | 1287 | 95 | 83 | 58 | 24 |
| 430 | 630 | 95 | 83 | ||
| 350 | 530 | 80 | 70 | 108 | 14 |
| 350 | 550 | 80 | 70 | 108 | 14 |
| 410 | 590 | 95 | 83 | 108 | 14 |
| 325 | 435 | 95 | 83 | 140 | 18 |
| 430 | 590 | 95 | 83 | 120 | 18 |
| 430 | 590 | 95 | 83 | 120 | 18 |
| 430 | 590 | 95 | 83 | 120 | 18 |
| 388 | 553 | 95 | 83 | 109 | 34 |
| 390 | 550 | 95 | 83 | 120 | 18 |
| 390 | 550 | 95 | 83 | 120 | 18 |
| 390 | 550 | 95 | 83 | 120 | 18 |
| 366 | 469 | 95 | 83 | 96 | 18 |
| 357 | 527 | 96 | 83 | 108 | 14 |
| 400 | 585 | 95 | 83 | 96 | |
| 356 | 491 | 80 | 70 | 92 | 14 |
| 402 | 592 | 95 | 83 | 108 | 14 |
| 580 | 880 | 120 | 108 | 96 | M16 |
| 395 | 580 | 95 | 83 | 125 | 14 |
| 370 | 540 | 95 | 83 | 93 | 32.5 |
Connecting method
Application
Related products
There are other 3 categories as below:
Primay oil damper
it consists of vertical and lateral oil damper, which aims to control nodding vibration and bouncing vibration between carbody and bogie.
Secondary oil damper
it consists of vertical and lateral oil damper, which aims to control nodding vibration and bouncing vibration between carbody and bogie.
Coupling damper
A coupling damper improves the quality and precision of your braking when towing by assisting with the gradual applying of the brakes both on and off.