▪ Eliminates the axial stresses inside the rails even when resetting pole rails
▪ Korea Railroad Corporation 2009 new product development project subject to purchasing condition
▪ Patent Application No. 09-106457, Patent Application No. 10-25821, Utility Model Application No. 09-14386
■ Detail
- Model: EL-HT70
■ Features
- Pulling power: 70tons
- Max. pulling rail length: 1.8km
- Module type design: easy to handle
- Min. manpower needed (2~3 staffs)
- Applicable for both Ballasted and Ballast-less track bed
- 50kgN and 60kg rail type, the other profile can be applicable
- Max. weight of component: 45kg
- Produced hand pump unit by two-speed type for improvement of foward/backward speed cylinder rod
■ Product contents
1) Hydrauric cylinder
Pulling | Pushing | Max. Pressure | Stroke |
Product weight |
70Ton | 30Ton | 600bar | 680mm | 260kg |
Pump |
Max. Pressure |
Tankage |
Recommended oil |
Weight |
Two-speed type |
580-600bar |
10L |
ISO VG 32 |
40kg |
3) Dimension
Section |
Hydraulic rail stressor |
Hand pump unit |
Dimension |
3460x785x380mm |
800x400x400mm |
■ Major feature pictures
- 50kgN / 60kg can be used without limit to rail type
- Review of clamp assembly safety factor
■ Field test
- Location: Jecheon ~ Dodam Double track electrified section
- Track structure
1) Concrete direct connection track bed
2) Ballast bed: 60kg continuous welded rail, PCT coil spring clip type
- Test result
1) Easy to use because it is manufactured without limitation on track condition
2) Small number of people (2 ~ 3 persons) can be installed.
3) Hydraulic hose part can be combined with each other, making it easy to storage
■ Certificate(Test report)
- Issuing organization : Korea Railroad Research Institute(KRRI)
- Date of issue : October 30, 2009