| 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 |
The front clamp jack mainly has the following structural characteristics:
Compact front end structure
- The front end of the front clamp jack is its key part, and the clamping device is compact. The clip can accurately jam the steel strand and effectively transfer the tension during the working process, and its compactness makes the jack can operate well in a small space, such as in the internal prestressing construction of the bridge box beam, it can easily stretch the steel strand.
Hydraulic system
- With hydraulic drive as the core, including components such as cylinder, piston and hydraulic oil path. The seal of the cylinder is good, which can effectively prevent the leakage of hydraulic oil, ensure that the piston can be stably extended forward under the push of oil pressure, and successfully retracted when the oil is returned. This hydraulic system enables the jack to output a large pulling force, which is enough to meet the requirements of applying a large prestressing force to the steel strand in the prestressing construction.
High strength cylinder block
The cylinder block is an important support part of the entire jack and is usually made of high-strength metal materials, such as high-quality alloy steel. This allows the cylinder to withstand high hydraulic pressure without deformation, providing stable guidance and support for the movement of the piston, and ensuring the accuracy and reliability of the jack during the working process.
Easy to connect parts
- Easy to connect with oil pump, tubing and other equipment interface. Through these interfaces, it can be easily connected with the external hydraulic system, so that the hydraulic oil can smoothly enter and exit the jack, and the connection mode is relatively firm, which can prevent the oil pipe from falling off during the working process.
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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