| Certification: | RoHS, ISO, CE |
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| Condition: | New |
| Automatic Grade: | Hydraulic |
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The working principle of the front clamp jack involves the exquisite coordination of hydraulic and mechanical structures. The hydraulic oil enters the cylinder under the action of the pump and pushes the piston forward. In the initial state, the gripper assembly has firmly clamped the steel strand, and the forward movement of the piston is converted into the tensile force on the steel strand, so that the prestress is generated inside the steel strand. In the tensioning process, the size and speed of the tensioning force can be precisely controlled by adjusting the flow and pressure of the hydraulic oil. After reaching the preset tensile force, the pressure holding function of the jack starts to maintain the force value unchanged. After the prestress is stabilized, the oil return process makes the piston return, and the clip is released from the steel strand. This process repeats, providing a reliable means of prestressing the prestressed concrete structure and enhancing the bearing capacity and durability of the structure
| Item | Unit | Value |
| Nominal tension | KN | 257 |
| Nominal oil pressure | MPA | 50 |
| Tension piston area | M2 | 5.137*10 |
| Return piston area | M2 | 1.335*10 |
| Piercing hole diameter | MM | 19 |
| Trolley trip | MM | 200 |
| Dimensions | MM | 180*568 |
| Return oil pressure | MPA | Less than or equal to 25 |
Structural characteristics
A, Prestressing Mono jack tension cylinder and return cylinder are double sealed to improve the reliability of sealing. Prestressing Mono jack's small cylinder and two cylinders, small cylinder and back end cover and small cylinder and tool ring are all connected by a key to prevent rotation. Prestressing Mono jack are all sealed with Glay circle or Stirring, and the sealing is reliable.
B, Prestressing Mono jack two cylinder and piston head design as a whole form, to avoid the possibility of failure due to two body welding or two bodies to thread connection. It increases the difficulty of processing technology, but improves the reliability.
C, Prestressing Mono jack wear ring, wear sleeve improved design, to avoid the possibility of assembly stress out, improve product reliability.
D, Prestressing Mono jack all stressed important parts, have chosen high quality alloy structure or tool steel manufacturing, improve hardness, improve strength.
Q1: Warranty terms of your machine?
A1: One-year warranty for the machine and technical support according to your needs.
Q2: Will you provide some spare parts for the machines?
A2: Yes, of course.
Q3: What about the voltage of products? Can they be customized?
A3: Our standard voltage is 380V, 50HZ, and 3phase. The voltage can be customized according to your equipment.
Q4: Which payment term can you accept?
A4: 100% T/T( Decide according to actual situation)
Q5: How long will it take to arrange production?
A5: we can deliver the normal goods within 3-5 working days. Other nonstandard electrical items we will deliver within 25-30 days.
Q6: Can you accept OEM orders?
A6: Yes, with a professional design team, OEM orders are highly welcome.
Q7: Which trade term can you accept?
A7: Available trade terms: FOB, CIF, CFR, EXW, etc.
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