| After-sales Service: | 1 Years |
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| Warranty: | 1 Years |
| Type: | Hydraulic |
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The upper clamp of the lifting jack is connected with the piston of the jack, the lower clamp is connected with the support foot of the lower part of the cylinder, and each hydraulic jack has 2 grippers. Each gripper includes a gripper cylinder, a gripper device plate, and a gripper screw to enable the device to open and close the gripper during on-load descent. Through the hydraulic pump station, pressure oil is supplied to the lifting jack, and the jack piston is pushed to extend and contract the cylinder. When the cylinder is extended, the upper gripper set at the top of the piston tightenes the bearing steel strand so that the lifting weight moves upward with it. The lower gripper connected to the cylinder tightenes the bearing steel strand to ensure that the lifting weight stays in the new position safely and reliably. The upper gripper set together at the top of the piston relaxes the load strand and the piston returns to prepare for the next stroke. When raised in place, the jack piston tightens the bearing steel strand with the upper gripper at the position of almost complete cylinder extension, the lower gripper relaxes the bearing steel strand, and the piston cylinder reduces the weight. In the position close to the completely reduced cylinder, the lower clamp clamp the bearing steel strand, the upper clamp relax the bearing steel strand, the piston no-load extension cylinder, in the almost completely extended cylinder, the upper clamp clamp again the bearing steel strand, the lower clamp relax the bearing steel strand, so the cycle until the lifting weight is accurately in the design position. The hydraulic circuit of the hydraulic jack and pump station is equipped with a hydraulic control check valve and a balance valve, which can lock the oil circuit in the event of sudden power failure and other emergencies, so that the lifting weight can be safely suspended at a fixed height.
1. Installation instructions
1. hydraulic synchronous lifting jacks Site preparation
- Select a solid, flat installation site to ensure that the ground can withstand the total weight of jacks and heavy objects. If the ground is soft, it should be strengthened in advance, such as laying steel plates or using sleepers.
- Clean up debris on the site, avoid debris affecting the placement and work of the jack, and ensure that there is enough space around the installation location to facilitate operation and maintenance.
2. Check the hydraulic synchronous lifting jacks
- Before installation, carefully check the appearance of hydraulic synchronous lifting jacks to ensure that there is no damage and no leakage. Check cylinder, piston, tubing and other key components are in good condition.
- Check whether the type and specification of hydraulic synchronous lifting jacks meet the working requirements, especially the carrying capacity and travel range. At the same time, check whether all components of the synchronous control system (if any) are complete and properly connected.
3. hydraulic synchronous lifting jacks
- Place the hydraulic synchronous lifting jacks smoothly in a pre-determined position, ensuring that the bottom of the hydraulic synchronous lifting jacks is in full contact with the ground and perpendicular to the lifting direction of the heavy object. When multiple hydraulic synchronous lifting jacks are used at the same time, measuring tools should be used for accurate measurement to ensure that the position and spacing between the jacks meet the requirements.
- If the hydraulic synchronous lifting jacks are equipped with fixed devices, such as anchor bolts or jigs, they should be properly installed and fixed according to the requirements of the manual to prevent the jack from shifting during the work.
4. Connect tubing and power supply (if applicable)
- When using hydraulic synchronous lifting jacks, make sure the tubing is clean and free of impurities and moisture before connecting. Securely connect the oil pipe to the hydraulic synchronous lifting jacks and the corresponding interface of the hydraulic pump station, and fix the oil pipe with pipe clamp or other fixing devices to prevent the oil pipe from falling off or leaking.
- For electric jacks, connect the power supply according to the installation requirements of the electrical equipment. Check whether the power supply voltage and frequency are consistent with the jack's rating, and ensure that the ground is good to avoid electric shock accidents.
5. System debugging (for synchronous lifting system)
- After all hydraulic synchronous lifting jacks and related devices are connected, enable the synchronous lifting control system. Calibrate the sensor according to the system operating manual to ensure accurate measurement of jack displacement, pressure and other parameters.
- Carry out no-load debugging to check whether the lifting and descending action of each jack is flexible and whether the synchronous control system can work normally. Observe the display data of the control system to confirm that the synchronization error between the hydraulic synchronous lifting jacks is within the allowable range.
Ii. Precautions
1. Safe operation
- The operator must be professionally trained and familiar with the hydraulic synchronous lifting jacks operation method and safety precautions. During operation, wear personal protective equipment, such as safety helmet, gloves, etc.
- hydraulic synchronous lifting jacks are strictly prohibited. Before working, it is necessary to accurately estimate the weight of the heavy object and ensure that the carrying capacity of the jack has sufficient safety margin. At the same time, during the lifting process, pay close attention to the working state and load of the jack, and stop the operation immediately once an anomaly is found.
2. Synchronous maintenance
- For hydraulic synchronous lifting jacks, check the accuracy of the synchronous control system regularly. If the synchronization error is found to exceed the specified range, adjust it in time. In the working process, try to avoid external factors to interfere with the synchronous work of the jack, such as uneven ground settlement, external force collision and so on.
- When multiple jacks work at the same time, the load distribution of each jack should be as evenly as possible. This can be achieved by pre-adjusting the initial height or load of the jack to ensure the stability of synchronous lifting.
3. Equipment maintenance and maintenance
- Regular maintenance of hydraulic synchronous lifting jacks, check the oil quality and oil amount of hydraulic oil (if it is a hydraulic jack). The oil quality should be replaced in time, and the insufficient oil should be added to the specified liquid level. At the same time, check whether the seal leaks, if there is a leak to replace the seal in time.
- After work, clean the hydraulic synchronous lifting jacks and store them in a dry and well-ventilated place. Avoid exposing the jack to damp and corrosive environment for a long time to prevent parts from rusting and damage.
4. Emergency handling
- Remain calm in case of power failure or equipment failure during hoisting. For jacks with self-locking devices, rely on the self-locking function to prevent heavy objects from falling. If there is no self-locking device, take emergency measures, such as using auxiliary supports to support heavy objects, to avoid danger.
- Prepare the necessary emergency tools and equipment, such as backup power supply, hand pumps (for hydraulic synchronous lifting jacks), etc., so that the problem can be dealt with in an emergency.
| Model | Safe working load | Working pressure MPA |
Cylinder stroke mm |
Retraction height mm |
Jack weight KG |
Fixed anchor weight KG |
Speed m/h |
Number of strands | Strand diameter mm |
| SFST-TSD45 | 45 | 31.5 | 500 | 1726 | 600 | 28 | 0-25 | 3 | 18 |
| SFST-TSD60 | 60 | 31.5 | 500 | 1726 | 630 | 32 | 0-25 | 4 | 18 |
| SFST-TSD100 | 100 | 31.5 | 500 | 1790 | 930 | 46 | 70-25 | 7 | 18 |
| SFST-TSD180 | 180 | 31.5 | 500 | 1886 | 1560 | 90 | 0-25 | 12 | 18 |
| SFST-TSD280 | 280 | 31.5 | 500 | 1938 | 2330 | 130 | 0-25 | 19 | 18 |
| SFST-TSD300 | 300 | 31.5 | 500 | 1940 | 2460 | 140 | 0-25 | 20 | 18 |
Shaanxi Saifusite Mechanical Electrical Equipment Co., Ltd. is a professional engaged in hydraulic mining equipment, hydraulic construction machinery equipment, ultra-high pressure pumping station, oil cylinder research, development, manufacturing and other enterprises.
Shaanxi Saifusite Mechanical Electrical Equipment Co., Ltd. produces various types of splitting gun, splitting rod, splitting machine, digging and drilling machine, electric hydraulic pump, high pressure cylinder, high pressure jack, synchronous lifting equipment, crushing hammer and other hydraulic machines and tools.
Shaanxi Saifusite Mechanical Electrical Equipment Co., has decades of experience in ultra-high voltage equipment. No matter today or in the future, it is absolutely a reliable and excellent brand.
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