China factory Single Acting High Tonnage Lock Nut Hydraulic Jack Hydraulic Cylinder 700 Bar 10000 CZPT Lift Hydraulic Cylinders a/c vacuum pump

Product Description


Product Description

 Hydraulic Cylinder Jack

Capacity: 50-800ton
Stroke: 50-300mm
Max.pressur: 700bar

SJL Series Single-Acting High Tonnage Hydraulic Cylinders 

1. Single acting, loads return.
2.Special painted surface to increase corrosion resistance.
3.Lock nut ensure the safety of long time load holding.
All model include quick couplings (NPT3/8″-18) and dust-proof cap.
4.Overflow port function could limit the stroke.
5.The exclusive guide Ring is designed absorbs eccentric loading without galling cylinder parts,reduces wear and extending life.
6.Removable hardened saddles protect plunger during lifting and pressing.
7.Double-acting mechanical lock nut cylinder could be customized.


Cylinder Capacity Stroke Model Number Cylinder Effective Area Oil Capacity Collapsed Height Extended Height Outside Dia. Cylinder Bore Dia Plunger Dia.(Thread) Base to Advance Port Saddle Dia. Saddle Max.Tilt Angle Lock nut Height Weight
        A B C D E F H R S  
ton(KN) (mm) (cm2) (cm3) (mm) (mm) (mm) (mm) (mm) (mm) (mm)   (mm) (kg)
50 SJL50-50 78.5 392 192 242 140 100 Tr99x4 24 90 30 18
100 SJL50-100 78.5 784 242 342 140 100 Tr99x4 24 90 30 25
150 SJL50-150 78.5 1176 292 442 140 100 Tr99x4 24 90 30 33
200 SJL50-200 78.5 1568 342 542 140 100 Tr99x4 24 90 30 41
300 SJL50-300 78.5 2352 442 742 140 100 Tr99x4 24 90 30 53
50 SJL100-50 153.9 770 213 263 188 140 Tr139x6 26 130 40 46
100 SJL100-100 153.9 1540 263 363 188 140 Tr139x6 26 130 40 57
150 SJL100-150 153.9 2310 313 463 188 140 Tr139x6 26 130 40 68
200 SJL100-200 153.9 3080 363 563 188 140 Tr139x6 26 130 40 79
300 SJL100-300 153.9 4620 463 763 188 140 Tr139x6 26 130 40 101
50 SJL150-50 226.9 1134 209 259 228 170 Tr159x6 49 160 38 56
100 SJL150-100 226.9 2269 259 359 228 170 Tr159x6 49 160 38 70
150 SJL150-150 226.9 3403 309 459 228 170 Tr159x6 49 160 38 83
200 SJL150-200 226.9 4538 359 559 228 170 Tr159x6 49 160 38 97
300 SJL150-300 226.9 6806 459 759 228 170 Tr159x6 49 160 38 124
50 SJL200-50 314 1570 243 293 268 200 Tr199x6 51 186 52 93
150 SJL200-150 314 4712 343 493 268 200 Tr199x6 51 186 52 131
300 SJL200-300 314 9423 493 793 268 200 Tr199x6 51 186 52 189
50 SJL300-50 490.6 2453 295 345 320 250 Tr249x6 59 236 60 179
150 SJL300-150 490.6 7359 395 545 320 250 Tr249x6 59 236 60 240
300 SJL300-300 490.6 14718 545 845 320 250 Tr249x6 59 236 60 331
50 SJL400-50 615.4 3077 335 385 370 280 Tr279x6 70 256 70 266
150 SJL400-150 615.4 9231 435 585 370 280 Tr279x6 70 256 70 345
300 SJL400-300 615.4 18462 585 885 370 280 Tr279x6 70 256 70 464
50 SJL500-50 803.8 4019 375 425 420 320 Tr319x6 80 306 80 358
150 SJL500-150 803.8 12057 475 625 420 320 Tr319x6 80 306 80 454
300 SJL500-300 803.8 24114 625 925 420 320 Tr319x6 80 306 80 597
50 SJL600-50 1017.4 5087 395 445 500 360 Tr359x6 85 346 85 490
150 SJL600-150 1017.4 15261 495 645 500 360 Tr359x6 85 346 85 614
300 SJL600-300 1017.4 30522 645 945 500 360 Tr359x6 85 346 85 800
50 SJL800-50 1256 6280 455 505 550 400 Tr399x6 100 386 100 843
150 SJL800-150 1256 18840 555 705 550 400 Tr399x6 100 386 100 1571
300 SJL800-300 1256 37698 705 1005 550 400 Tr399x6 100 386 100 1306

All SAIVS Hydraulic Lifting Cylinders Jack go with calibration certificates,
Your Requirements Can Be Customized, Please Contact Us Freely!

Detailed Photos



800 T Single-Acting Lock – Nut Hydraulic Cylinders

Removable hardened saddles protect plunger during lifting and pressing.
According to different work environment, special cylinder could be customized.

SAIVS is a professional manufacturer in hydraulic tools and products, Hydraulic lifting cylinder & jack and Hydraulic pumps.

Our full rang of popular hydraulic cylinder reserviors including jacking, pushing, pulling, supporting etc.

Our hydraulic products have been widely used in petrochemical, Building, shipbuilding, steel plant and heavy constructions areas etc.





Packaging & Shipping

Company Profile

Established in HangZhou, China, CHINAMFG began as a manufacturer and exporter of different kinds of casting and precision CNC machining components, industrial customized parts. CHINAMFG has the experience to develop thousands of tooling and fixtures in house according to customers’ drawings.

In 2002, hydraulic tools research department was settled and company developed its first line of hydraulic tools and equipment. Today CHINAMFG is reckoned as 1 of the most preferred experienced manufacturer and exporter of hydraulic tools, hydraulic pumps & hydraulic components in the industrial market.

We have more than 200 employees total, that work at casting foundries, CNC machining plant. we have nice reputation in components supply chain, as we have better management system, positive teamwork cooperation and advanced equipment. We obtained certificates of TS16949, ISO9001, ISO14001 and OSHAS ISO 18001.


Q: Are you trading company or manufacturer?
A: We are factory with more than 20 years experience.

Q: How long for delivery?
A: Generally it is 15-30days as we are customized service we confirm with customer when place order.

Q: What is the MOQ?
A: It depends on what you are buying. Normally, our minimum order is 1 20′ full container and LCL container (less than a
container load) can be acceptable.

Q: Can you customize my products?
A: Yes, we can customized products with your design drawings like DWG, DXF, DXW, IGES, STEP, PDF etc.

Q: What is your terms of payment?
A: 30% T/T in advance, balance before shipment, or as per discussion.

Q: What about your quality control?
A: * . Checking the raw material after they reach our factory—–Incoming quality control(IQC)
* . Checking the details before the production line operated
* . Have full inspection and routing inspection during mass production—-In-process quality control(IPQC)
* . Checking the goods after they are finished—-Final quality control(FQC)
* . Checking the goods after they are finished—-Outgoing quality control(QC)
* . 100% inspection and delivery before shipment

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After-sales Service: Yes
Warranty: 1 Year
Type: Hydraulic Jack
Structure: Hydraulic Jack
Capacity (Load): 50-800 T
Power Source: Hydraulic


lift cylinder

How does a lift cylinder contribute to smooth and controlled lifting motion?

A lift cylinder plays a crucial role in ensuring smooth and controlled lifting motion in various applications. Here’s an explanation of how a lift cylinder contributes to this:

1. Hydraulic Operation:

A lift cylinder typically operates using hydraulic power. Hydraulic systems utilize pressurized fluid to generate force and motion. The lift cylinder is connected to the hydraulic system, and when the hydraulic fluid is pressurized, it exerts force on the piston inside the cylinder. This force causes the cylinder to extend or retract, enabling the lifting motion. The hydraulic operation of the lift cylinder provides a smooth and consistent force, resulting in a controlled and precise lifting motion.

2. Synchronization:

In some applications, multiple lift cylinders are used together to achieve synchronized lifting. These cylinders work in tandem, ensuring that the lifting force is evenly distributed and that the load remains level throughout the lifting process. The synchronization of lift cylinders contributes to a smooth and balanced lifting motion, reducing the risk of tilting or instability.

3. Control Valves:

Lift cylinders are often equipped with control valves that allow operators to control the flow and pressure of the hydraulic fluid. By adjusting these control valves, operators can regulate the speed and force of the lifting motion. This provides precise control over the lifting process, allowing for smooth and controlled movements tailored to the specific requirements of the application.

4. Damping and Cushioning:

Some lift cylinders incorporate damping and cushioning mechanisms to further enhance the smoothness and control of the lifting motion. These mechanisms help absorb shocks and vibrations, preventing sudden jolts or jerky movements during the lifting process. Damping and cushioning features contribute to a more comfortable and controlled lifting experience, particularly when dealing with delicate or sensitive loads.

5. Load Capacities:

Lift cylinders are designed to handle specific load capacities based on their size, construction, and specifications. By selecting the appropriate lift cylinder for the intended load, operators can ensure that the lifting motion remains smooth and controlled. Overloading or underloading the lift cylinder can lead to instability or uneven lifting, affecting the overall smoothness and control of the motion.

In summary, a lift cylinder contributes to smooth and controlled lifting motion through its hydraulic operation, synchronization (if applicable), the use of control valves, damping and cushioning mechanisms, and appropriate load capacities. These factors work together to provide reliable and precise lifting, enhancing safety and efficiency in various applications.

lift cylinder

How does a lift cylinder contribute to load clamping and gripping?

A lift cylinder plays a significant role in load clamping and gripping applications by providing the necessary force and control to securely hold objects in place. Lift cylinders, also known as hydraulic cylinders, are widely used in various industrial settings for lifting, pushing, pulling, and holding heavy loads.

When it comes to load clamping and gripping, lift cylinders contribute in the following ways:

  • Clamping Force: Lift cylinders can generate a high clamping force, which is utilized to tightly hold objects together. By exerting pressure on clamping mechanisms or jaws, the cylinders ensure a secure grip on the load, preventing undesired movement or slippage.
  • Gripping Action: Lift cylinders are integrated into gripping devices or gripper systems to perform gripping actions. These cylinders provide the force necessary to close the gripper fingers or jaws around the object, creating a firm grip. The gripping action allows for safe transportation, manipulation, or assembly of the load.
  • Controlled Pressure: Lift cylinders offer precise control over the clamping or gripping force. The hydraulic system controlling the cylinders allows for adjustable pressure settings, enabling operators to tailor the clamping force according to the specific requirements of the application. This control ensures optimal grip without damaging the load.
  • Positioning and Alignment: Lift cylinders assist in the positioning and alignment of the load during clamping or gripping operations. They can be used to finely adjust the position of the clamping or gripping elements, ensuring accurate and proper alignment with the load. This precision helps achieve a secure and balanced grip on the object.

The use of lift cylinders in load clamping and gripping applications offers several advantages. They provide reliable and powerful clamping or gripping force, enabling safe and efficient handling of objects. The adjustable pressure and precise control allow for customization based on the load characteristics, ensuring optimal grip without causing damage.

In summary, lift cylinders contribute significantly to load clamping and gripping by providing the necessary force, control, and adjustability. Their integration into clamping mechanisms and gripper systems enhances safety, accuracy, and productivity in various industrial processes.

lift cylinder

What are the key components of a lift cylinder?

A lift cylinder, also known as a hydraulic lift cylinder or hydraulic lifting cylinder, consists of several key components that work together to enable its functionality. Here’s an explanation of the key components of a lift cylinder:

1. Cylinder Barrel:

The cylinder barrel is a cylindrical hollow tube that forms the main body of the lift cylinder. It provides the housing for the other components and contains the hydraulic fluid, allowing it to flow in and out of the cylinder.

2. Piston:

The piston is a cylindrical component that separates the cylinder barrel into two chambers. It is typically made of metal and has a precise fit within the cylinder barrel. The piston’s movement within the cylinder barrel is crucial for generating the lifting force.

3. Rod:

The rod, also known as the piston rod or plunger rod, is attached to the piston and extends from the cylinder barrel. It serves as a connection point for the load or the mechanism being lifted. The rod transfers the lifting force generated by the piston to the load.

4. Seals:

Seals are essential components that prevent hydraulic fluid leakage and maintain the integrity of the hydraulic system. They are located between the cylinder barrel and the piston, as well as around the rod. Seals ensure that the hydraulic fluid remains contained within the cylinder and prevent external contaminants from entering the system.

5. Hydraulic Fluid:

Hydraulic fluid, such as oil or synthetic fluid, is the medium used to transmit force within the lift cylinder. It is stored within the cylinder barrel and flows in and out of the cylinder to generate the necessary pressure for lifting and lowering operations.

6. Control Valve:

A control valve is a crucial component that regulates the flow of hydraulic fluid into and out of the lift cylinder. It determines the direction and amount of fluid entering the cylinder, allowing for precise control of the lifting and lowering operations. The control valve is typically operated by the operator or controlled automatically in hydraulic systems.

These key components work together to enable the operation of the lift cylinder. When hydraulic fluid is supplied to the appropriate chamber of the cylinder, it applies pressure on the piston, causing it to move and extend or retract the rod. This movement generates the lifting or lowering force required for a specific application.

China factory Single Acting High Tonnage Lock Nut Hydraulic Jack Hydraulic Cylinder 700 Bar 10000 CZPT Lift Hydraulic Cylinders   a/c vacuum pump		China factory Single Acting High Tonnage Lock Nut Hydraulic Jack Hydraulic Cylinder 700 Bar 10000 CZPT Lift Hydraulic Cylinders   a/c vacuum pump
editor by CX 2024-03-21