Product Description

1 YEAR WARRANTY AND EXCELLENT SERVICE
7 DAYS REFUND PAYMENT IN CASE OF QUALITY
24 HOURS SMOOTHLY COMMUNICATION

Product Description

 Hydraulic Cylinder Jack

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

SSJ Series Single-Acting High Tonnage Hydraulic Cylinders 

1. Single acting, loads return.
2. Hard chrome plated high quality steel plungers.
3. Plunger wiper reduces contamination, extending cylinder life.
4. The exclusive guide Ring is designed absorbs eccentric loading without galling cylinder parts, reduces wear and extending life.
5. Special painted surface to increase corrosion resistance.
6. Easy fixturing with base mounting holes.
7. All model include quick couplings (NPT3/8″-18) and dust-proof cap.
8. Removable hardened saddles protect plunger during lifting and pressing.
9. According to different work environment, special 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. Base to Advance Port Saddle Dia.  Saddle Protrusion from Plgr. Mounting Hole Dimensions Weight
Bolt Circle Thread Thread Depth
        A B C D E F H J O P W  
ton(KN) (mm) (cm2) (cm3) (mm) (mm) (mm) (mm) (mm) (mm) (mm) (mm) (mm)   (mm) (kg)
50
(550)
50 SSJ50-50 78.5 392 172 222 140 100 70 41 70 24 70 4-M16 13 21.5
100 SSJ50-100 78.5 784 222 322 140 100 70 41 70 24 70 4-M16 13 26
150 SSJ50-150 78.5 1176 272 432 140 100 70 41 70 24 70 4-M16 13 31
200 SSJ50-200 78.5 1568 322 522 140 100 70 41 70 24 70 4-M16 13 35
300 SSJ50-300 78.5 2352 422 722 140 100 70 41 70 24 70 4-M16 13 44
100
(1077)
50 SSJ100-50 153.9 770 197 247 188 140 100 54 100 24 100 4-M20 16 42
100 SSJ100-100 153.9 1540 247 347 188 140 100 54 100 24 100 4-M20 16 49
150 SSJ100-150 153.9 2310 297 447 188 140 100 54 100 24 100 4-M20 16 56
200 SSJ100-200 153.9 3080 347 547 188 140 100 54 100 24 100 4-M20 16 63
300 SSJ100-300 153.9 4620 447 747 188 140 100 54 100 24 100 4-M20 16 70
150
(1588)
50 SSJ150-50 226.9 1134 206 256 228 170 120 58 120 24 130 4-M20 16 44
100 SSJ150-100 226.9 2269 256 356 228 170 120 58 120 24 130 4-M20 16 57
150 SSJ150-150 226.9 3403 306 456 228 170 120 58 120 24 130 4-M20 16 70
200 SSJ150-200 226.9 4538 356 556 228 170 120 58 120 24 130 4-M20 16 83
300 SSJ150-300 226.9 6806 456 756 228 170 120 58 120 24 130 4-M20 16 109
200
(2198)
50 SSJ200-50 314 1570 221 296 268 200 150 64 150 29 160 4-M24 24 84
150 SSJ200-150 314 4712 321 496 268 200 150 64 150 29 160 4-M24 24 118
300 SSJ200-300 314 9423 471 796 268 200 150 64 150 29 160 4-M24 24 152
300
(3434)
50 SSJ300-50 490.6 2453 277 327 320 250 180 74 180 35 220 4-M24 24 155
150 SSJ300-150 490.6 7359 377 527 320 250 180 74 180 35 220 4-M24 24 195
300 SSJ300-300 490.6 14718 527 827 320 250 180 74 180 35 220 4-M24 24 255
400
(4308)
50 SSJ400-50 615.4 3077 305 355 370 280 210 83 210 35 240 4-M24 24 240
150 SSJ400-150 615.4 9231 405 555 370 280 210 83 210 35 240 4-M24 24 310
300 SSJ400-300 615.4 18462 555 855 370 280 210 83 210 35 240 4-M24 24 415
500
(5114)
50 SSJ500-50 803.8 4019 325 375 420 320 250 93 246 35 280 4-M24 24 285
150 SSJ500-150 803.8 12057 425 575 420 320 250 93 246 35 280 4-M24 24 353
300 SSJ500-300 803.8 24114 575 875 420 320 250 93 246 35 280 4-M24 24 455
600
(6300)
50 SSJ600-50 1017.4 5087 386 436 500 360 280 113 280 40 300 4-M24 24 487
150 SSJ600-150 1017.4 15261 486 636 500 360 280 113 280 40 300 4-M24 24 579
300 SSJ600-300 1017.4 30522 636 936 500 360 280 113 280 40 300 4-M24 24 717
800
(8790)
50 SSJ800-50 1256 6280 427 477 550 400 320 113 320 57 380 4-M24 24 712
150 SSJ800-150 1256 18840 527 677 550 400 320 113 320 57 380 4-M24 24 860
300 SSJ800-300 1256 37698 677 977 550 400 320 113 320 57 380 4-M24 24 1082

   

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

Detailed Photos

  
 

 

Single-Acting High Tonnage Hydraulic Cylinders

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.

 

 

Application

Certifications

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.

FAQ

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

 

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

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hydraulic cylinder

How do hydraulic cylinders handle the challenges of precise positioning and control?

Hydraulic cylinders are designed to handle the challenges of precise positioning and control with a combination of engineering principles and advanced control systems. These challenges often arise in applications where accurate and controlled movements are required, such as in industrial automation, construction, and material handling. Here’s a detailed explanation of how hydraulic cylinders overcome these challenges:

1. Fluid Power Control:

– Hydraulic cylinders utilize fluid power control to achieve precise positioning and control. The hydraulic system consists of a hydraulic pump, control valves, and hydraulic fluid. By regulating the flow of hydraulic fluid into and out of the cylinder, operators can control the speed, direction, and force exerted by the cylinder. The fluid power control allows for smooth and accurate movements, enabling precise positioning of the hydraulic cylinder and the attached load.

2. Control Valves:

– Control valves play a crucial role in handling the challenges of precise positioning and control. These valves are responsible for directing the flow of hydraulic fluid within the system. They can be manually operated or electronically controlled. Control valves allow operators to adjust the flow rate of the hydraulic fluid, controlling the speed of the cylinder’s movement. By modulating the flow, operators can achieve fine control over the positioning of the hydraulic cylinder, enabling precise and accurate movements.

3. Proportional Control:

– Hydraulic cylinders can be equipped with proportional control systems, which offer enhanced precision in positioning and control. Proportional control systems utilize electronic feedback and control algorithms to precisely regulate the flow and pressure of the hydraulic fluid. These systems provide accurate and proportional control over the movement of the hydraulic cylinder, allowing for precise positioning at various points along its stroke length. Proportional control enhances the cylinder’s ability to handle complex tasks that require precise movements and control.

4. Position Feedback Sensors:

– To achieve precise positioning, hydraulic cylinders often incorporate position feedback sensors. These sensors provide real-time information about the position of the cylinder’s piston rod. Common types of position feedback sensors include potentiometers, linear variable differential transformers (LVDTs), and magnetostrictive sensors. By continuously monitoring the position, the feedback sensors enable closed-loop control, allowing for accurate positioning and control of the hydraulic cylinder. The feedback information is used to adjust the flow of hydraulic fluid to achieve the desired position accurately.

5. Servo Control Systems:

– Advanced hydraulic systems employ servo control systems to handle the challenges of precise positioning and control. Servo control systems combine electronic control, position feedback sensors, and proportional control valves to achieve high levels of accuracy and responsiveness. The servo control system continuously compares the desired position with the actual position of the hydraulic cylinder and adjusts the flow of hydraulic fluid to minimize any positional error. This closed-loop control mechanism enables the hydraulic cylinder to maintain precise positioning and control, even under varying loads or external disturbances.

6. Integrated Automation:

– Hydraulic cylinders can be integrated into automated systems to achieve precise positioning and control. In such setups, the hydraulic cylinders are controlled by programmable logic controllers (PLCs) or other automation controllers. These controllers receive input signals from various sensors and use pre-programmed logic to command the hydraulic cylinder’s movements. The integration of hydraulic cylinders into automated systems allows for precise and repeatable positioning and control, enabling complex sequences of movements to be executed with high accuracy.

7. Advanced Control Algorithms:

– Advancements in control algorithms have also contributed to the precise positioning and control of hydraulic cylinders. These algorithms, such as PID (Proportional-Integral-Derivative) control, adaptive control, and model-based control, enable sophisticated control strategies to be implemented. These algorithms consider factors such as load variations, system dynamics, and environmental conditions to optimize the control of hydraulic cylinders. By employing advanced control algorithms, hydraulic cylinders can compensate for disturbances and achieve precise positioning and control over a wide range of operating conditions.

In summary, hydraulic cylinders overcome the challenges of precise positioning and control through the use of fluid power control, control valves, proportional control, position feedback sensors, servo control systems, integrated automation, and advanced control algorithms. By combining these elements, hydraulic cylinders can achieve accurate and controlled movements, enabling precise positioning and control in various applications. These capabilities are essential for industries that require high precision and repeatability in their operations, such as industrial automation, robotics, and material handling.

hydraulic cylinder

Ensuring Stable Performance of Hydraulic Cylinders Under Fluctuating Loads

Hydraulic cylinders are designed to provide stable performance even under fluctuating loads. They achieve this through various mechanisms and features that allow for efficient load control and compensation. Let’s explore how hydraulic cylinders ensure stable performance under fluctuating loads:

  1. Piston Design: The piston inside the hydraulic cylinder plays a crucial role in load control. It is typically equipped with seals and rings that prevent leakage of hydraulic fluid and ensure effective transfer of force. The piston design may incorporate features such as stepped or tandem pistons, which provide enhanced load-bearing capabilities and improved stability by distributing the load across multiple surfaces.
  2. Cylinder Cushioning: Hydraulic cylinders often incorporate cushioning mechanisms to minimize the impact and shock caused by fluctuating loads. Cushioning can be achieved through various methods, such as adjustable cushion screws, hydraulic cushioning valves, or elastomeric cushioning rings. These mechanisms slow down the piston’s movement near the end of the stroke, reducing the impact and preventing sudden stops that could lead to instability.
  3. Pressure Compensation: Fluctuating loads can result in pressure variations within the hydraulic system. To ensure stable performance, hydraulic cylinders are equipped with pressure compensation mechanisms. These mechanisms maintain a consistent pressure level in the system, regardless of load changes. Pressure compensation can be achieved through the use of pressure relief valves, compensating pistons, or pressure-compensated flow control valves.
  4. Flow Control: Hydraulic cylinders often incorporate flow control valves to regulate the speed of the cylinder’s movement. By controlling the flow rate of hydraulic fluid, the cylinder’s motion can be adjusted to match the changing load conditions. Flow control valves allow for smooth and controlled movement, preventing abrupt changes that could lead to instability.
  5. Feedback Systems: To ensure stable performance under fluctuating loads, hydraulic cylinders can be integrated with feedback systems. These systems provide real-time information on the cylinder’s position, velocity, and force. By continuously monitoring these parameters, the hydraulic system can make immediate adjustments to maintain stability and compensate for load fluctuations. Feedback systems can include position sensors, pressure sensors, or load sensors, depending on the specific application.
  6. Proper Sizing and Selection: Ensuring stable performance under fluctuating loads starts with proper sizing and selection of hydraulic cylinders. It is crucial to choose cylinders with appropriate bore size, rod diameter, and stroke length to match the anticipated load conditions. Oversized or undersized cylinders can lead to instability and reduced performance. Proper sizing also involves considering factors such as the required force, speed, and duty cycle of the application.

In summary, hydraulic cylinders ensure stable performance under fluctuating loads through features such as piston design, cushioning mechanisms, pressure compensation, flow control, feedback systems, and proper sizing and selection. These mechanisms and considerations allow hydraulic cylinders to provide consistent and controlled movement, even in dynamic load conditions, resulting in reliable and stable performance.

hydraulic cylinder

How do hydraulic cylinders handle variations in load, pressure, and speed?

Hydraulic cylinders are designed to handle variations in load, pressure, and speed effectively. They incorporate features and components that allow them to adapt to changing operating conditions and maintain optimal performance. Here’s a detailed explanation of how hydraulic cylinders handle variations in load, pressure, and speed:

Variations in Load:

– Hydraulic cylinders are capable of handling variations in load by adjusting the force they exert. The force output of a hydraulic cylinder is determined by the hydraulic pressure and the surface area of the piston. When the load increases, the pressure in the hydraulic system can be adjusted to generate a higher force. This adjustment can be achieved by regulating the flow of hydraulic fluid into the cylinder using control valves. By controlling the pressure and flow, hydraulic cylinders can adapt to different load requirements, ensuring that the force applied is sufficient to handle the load while preventing excessive force that could cause damage.

Variations in Pressure:

– Hydraulic cylinders are designed to handle variations in pressure within the hydraulic system. They are equipped with seals and other components that can withstand high-pressure conditions. When the pressure within the hydraulic system fluctuates, the hydraulic cylinder adjusts accordingly to maintain its performance. The seals prevent fluid leakage and ensure that the hydraulic pressure is effectively transmitted to the piston, allowing the cylinder to generate the required force. Additionally, hydraulic systems often incorporate pressure relief valves and other safety mechanisms to protect the cylinder and the entire system from overpressure conditions.

Variations in Speed:

– Hydraulic cylinders can handle variations in speed through the control of hydraulic fluid flow. The speed of a hydraulic cylinder’s extension or retraction is determined by the rate at which hydraulic fluid enters or exits the cylinder. By adjusting the flow rate using flow control valves, the speed of the cylinder’s movement can be regulated. This allows for precise control over the speed, enabling operators to adapt to varying speed requirements based on the specific task or load. Furthermore, hydraulic systems can incorporate flow control valves with adjustable orifice sizes to fine-tune the speed of the cylinder’s movement.

Load-Sensing Technology:

– Advanced hydraulic systems may incorporate load-sensing technology to further enhance the ability of hydraulic cylinders to handle variations in load, pressure, and speed. Load-sensing systems monitor the load demand and adjust the hydraulic pressure and flow accordingly to meet that demand. This technology ensures that the hydraulic cylinder provides the necessary force while optimizing energy efficiency. Load-sensing systems are particularly beneficial in applications where the load requirements can vary significantly, allowing hydraulic cylinders to adapt in real-time and maintain precise control over force and speed.

Accumulators:

– Hydraulic systems can also utilize accumulators to assist in handling variations in load, pressure, and speed. Accumulators store hydraulic fluid under pressure, which can be released when needed to supplement the flow and pressure in the system. When there are sudden increases in load or pressure demands, accumulators can provide additional fluid to the hydraulic cylinder, ensuring smooth operation and preventing pressure drops. Similarly, accumulators can assist in maintaining consistent speed by compensating for fluctuations in flow rate. They act as a supplemental energy source, helping hydraulic cylinders respond effectively to variations in operating conditions.

In summary, hydraulic cylinders handle variations in load, pressure, and speed through various mechanisms and components. They can adjust the force output to accommodate different load requirements by regulating hydraulic pressure. The seals and components within hydraulic cylinders allow them to withstand variations in pressure within the hydraulic system. By controlling the flow of hydraulic fluid, hydraulic cylinders can regulate the speed of their movement. Advanced technologies such as load-sensing systems and the use of accumulators further enhance the adaptability of hydraulic cylinders to changing operating conditions. These features and mechanisms enable hydraulic cylinders to maintain optimal performance and provide reliable force and motion control in a wide range of applications.

China best Ssj Series Single-Acting High Tonnage Hydraulic Cylinders 800 Ton   vacuum pump oil	China best Ssj Series Single-Acting High Tonnage Hydraulic Cylinders 800 Ton   vacuum pump oil
editor by CX 2023-11-11