Product Description
Prestressed tensioning Bridge hydraulic jack for post tension


1. Usage: It is mached with prestressed anchorage widely used in the construction of bridge and buildings, railway and subway, water conservancy and hydropower engineering.
2. It is suitable for the tension of group anchors with 1860-2000 sizes, Φ 15.24, Φ 12.7 strands.
3. In some certain circumstance it can be used in the working of pushig, jacking and transforming and so on.
4. Easy to use with reanosable price.
5. Jack is used for prestressing works
Our Advantages

1. Using the new seals, to synchronous strengthen the seal-ability under great pressure.
2. Using special alloy steel with heat treatment process, reducing the cylinder's expansion ratio in the tensioning process. So that the life of seals and sealing performance can be improved about 20%.
3. In the tensioning the operating process, jacks is easily damaged under overpressure because of the jack-based pullback clinder, so we added the overpressure valve on the jacks to pressure production. Meanwhile we improved the original of commonly used structure by wire disc and flanged disc, to make the bearing capacity for oil pressure strengthen. So that enormously reduce the possibility of mechanical damage due to improper operation.
Product Parameters
Item |
unit |
number |
Nominal tension |
KN |
257 |
Nominal oil pressure |
Mpa |
50 |
Tension piston area |
m2 |
5.137×10-3 |
Return piston area |
m2 |
1.335×10-3 |
item |
unit |
number |
|
Through hole diameter |
mm |
Φ19 |
|
Tension stroke |
mm |
200 |
|
Dimensions |
mm |
Φ180×568 |
|
Return oil pressure |
Mpa |
≤25 |
|
Guangxi Xiruier Intelligent Technology Co., Ltd |
Certifications
Prestressed jacks are widely used in engineering, and their main advantages are
- Strong load-bearing capacity: can withstand a weight of 0-1000 tons, and can meet the high-strength prestressed tensioning requirements in large-scale projects.
- High precision
- Convenient operation: reasonable structural design, relatively simple operation, easy for construction personnel to use, can improve construction efficiency.
- Good stability: can maintain stable performance during the work process, reducing construction problems caused by unstable equipment.
- Wide applicability: suitable for a variety of prestressed engineering scenarios such as bridges and buildings, and can adapt to different construction conditions.
Company Profile
Guangxi Xiruier Intelligent Technology Co., Ltd Have been in hydraulic tools industry since 2015. Our main products as follow:
mono jack :27 ton
Single acting hydraulic jack/cylinder/ram (10-100 tons)
Single acting hollow hydraulic jack/cylinder/ram (12-100 tons)
Double acting hydraulic jack/cylinder/ram (50-2000 tons)
Double acting hollow hydraulic jack/cylinder/ram (50-2000 tons)
Single acting hydraulic jack/cylinder/ram with lock nut (55-200 tons)
Thin type single acting hydraulic jack/cylinder/ram (10-200 tons)
Ultrathin hydraulic jack/cylinder/ram (10-200 tons)
Flange type hydraulic jack/cylinder/ram (10-630 tons)
Synchronous hydraulic jack (10-1000 tons)
Hydraulic accessories: high pressure oil hose, couplers, seal kits, mainfold, etc.
All the tonnage, stroke, height can be customized according to client's requirements, supply the best quality and serve. Our warranty is 3 years.

