long stroke hydraulic cylinder / hydraulic cylinder long stroke / long ram hydraulic jack

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Product Overview


Product Description
long stroke hydraulic cylinder / hydraulic cylinder long stroke / long ram hydraulic jack prestressing jack

Accessories : 

One Set jack will complete with 2pcs oil pipe 



 Production Line and Flow Chart:

prestressing jack


1. Tension Jack 500 ton hydraulic hollow jack for Post tension Mainly used in to tensioning the pc strands/steell wire of the bridge construction.
2. General tonnage of the jacks is based on the anchor's holes to match use .
3. With the electric lift hydraulic jack together use the complete set equipment : anchorage, Electric oil pump,Mixer, Grouting machine,push machine for pc strand/ steel wire .
4. Our hydraulic jack tonnage is "70-650 tons, anchor hole is: 2-32 holes. Oil pump is: 3-7.5 kilowatts, the other requirements we can customize.
5. The device can be used widely in post-tensioning operation for immense constructions, prestressed concrete bridges, ground anchorage, marine constructions, foundation anchorage,etc

*Operating principle
The oil cylinder ,heading cover(adjusting nut) ,end cover(hold-down ring), front sealing plate,back sealing plate of this jack connect with cross-core socket to form a "motionless body", and the piston of the jack is "motion body", when the hydraulic oil pushes the "motion body" to the right, it begins to tension; When the hydraulic oil pushes the motion body to the left, it is the piston-return after the tension.


*The technical parameters :




tension force        KN

Nominal        oil pressure MPgTension  piston area      m2Return  piston area  m2Return    oil pressure MPgCoss-core  aperture     mmStroke    for tension mmOverall size  ΦA×L           mmMass         KG



Construction and range of application:

prestressing jack


Packaging & Shipping

 Plywood wooden box

 prestressing jack




One Set jack will complete with 2pcs oil pipe 



Send inquiry or contact us,

Click here prestressing jack


Company Information

 prestressing jackprestressing jack



We,Liuzhou Lingqiao Prestressed Machinery Co.,Ltd,established in 2011.With the guidance of experienced bulding experts in prestress.We Lingqiao prestressing anchorage,jack,pump or other prestressed equipment are improving for construction demand.

Our product are extensively applied in many projects, such as highway,railway,bridges,bulding construction,hydroelectric projects,TV tower,large containers,rock anchors and ground anchors.

Our Services

 Pr e-sales  service

* Inquiry and consulting support.

* Custom processing services

* View our Factory.


After-sales service

* Technical support

* Quality assurance services



 prestressing jack


 Q :Will are there calibration certificate of the jack?
A :Our Jack are calibrated by China authority,is our China standard.But please kindly confirm you need.

Q :What can I get the anchorage?
A :If you need the anchorage based on your drawing,just kindly provide the drawing for our check before producing.and we have 12.7mm(0.5") and 15.24mm(0.6") types of wedge.

Q :What is your term of delivery?
A :We accept EXW, FOB Shenzhen,FOB Guangzhou , CIF,DDU.You can choosethe one which is the most convenient or cost effective for you.The DDU is often delivery by express.

Q :What about the lead time for the mass production?
A: We often arrange our product within 7 working days .But h onestly, it depends on the order quantity and the season you place the order.

Contact us


 Send inquiry or contact us:

Sales manager
Liuzhou Lingqiao Prestressed Force Machinery CO., Ltd
WhatsApp:+86 18078249098
Mobile number:+0086 18078249098
Tension Jack 500 ton hydraulic hollow jack

0.0154 s.