China best 50 ton hydraulic press cylinder for press machine vacuum pump booster

Product Description

50 ton hydraulic press cylinder for press machine

Hydraulic cylinder can bear partial loading is 5% of rated pressure. High pressure alloy cylinder is very durable, especially in the larger project, it is easily to be operated and control. It can be used for lifting heavy machine, bridge project, hydraulic engineering, harbour construction and other equipment. It has large output, light weight, remote control and other advantages, it can match with our high pressure oil pump, it can reach jack, push, pull and extrusion and kinds of working.

2. Features

1. Integral stop ring provides piston blow-out protection
2. Double-acting for positive retraction
3. Baked enamel outside finish and plated pistons provide superior corrosion resistance
4. Safety valve in retract side of cylinder helps to prevent damage in case of accidental over-pressurization
5. Interchangeable, hardened grooved saddles are standard
6. Plunger wiper reduces contamination, extending cylinder life


Model Tonnage T Stroke mm Closed height mm Extend height mm Outer diameter of oil cylinder mm Dimension of plunger mm Dimension of oil pump  mm Weight kg Pressure
STQ50-100 50 100 225 325 127 70 100 35 63MPA
STQ50-160 160 285 445 39
STQ50-200 200 325 525 46
STQ50-300 300 425 725 48
STQ50-500 500 625 1125 63
STQ100-100 100 100 250 350 180 100 140 58
STQ100-160 160 310 470 63
STQ100-200 200 350 550 78
STQ100-300 300 450 750 96
STQ100-500 500 650 1150 130
STQ150-100 150 100 260 360 219 125 180 58
STQ150-160 160 320 480 69
STQ150-200 200 360 560 86
STQ150-300 300 460 760 103
STQ150-500 500 660 1160 255
STQ200-100 200 100 285 385 240 150 200 96
STQ200-160 160 345 505 103
STQ200-200 200 385 585 116
STQ200-300 300 485 785 161
STQ200-500 500 685 1185 221
STQ320-100 320 100 310 410 330 180 250 196
STQ320-160 160 370 530 240
STQ320-200 200 410 610 258
STQ320-300 300 510 810 311
STQ320-500 500 710 1210 456
STQ400-100 400 100 355 455 380 200 290 198
STQ400-160 160 415 575 231
STQ400-200 200 460 660 264
STQ400-300 300 555 855 367
STQ400-500 500 755 1255 456
STQ500-100 500 100 360 460 430 200 320 323
STQ500-160 160 420 580 330
STQ500-200 200 460 660 420
STQ500-300 300 560 860 581
STQ500-500 500 760 1260 599
STQ630-100 630 100 417 517 500 250 360 560
STQ630-160 160 477 637 633
STQ630-200 200 517 717 696
STQ630-300 300 617 917 898
STQ630-500 500 817 1317 1250
STQ800-100 800 100 488 588 560 300 400 896
STQ800-200 200 598 798 1040
STQ800-300 300 698 998 1380
STQ800-500 500 898 1398 1520
STQ1000-100 1000 100 530 630 600 320 450 1286
STQ1000-200 200 630 830 1332
STQ1000-300 300 760 1060 1663

If the model you are looking for is not available, please contact us! We will customize it according to your needs.

3. Application:
Our hydraulic jacks have been widely used for industrial field, such as steel plant, cement industry, chemical and refinery, bridge, railway, highway, hydropower station, ship repair, building, construction and maintenance.

4.Company information:
HangZhou Lead Equipment Co., Ltd. Have been in hydraulic tools industry since 2009.
Our main products as follow:
Single acting hydraulic jack/cylinder/ram (10-100 tons)
Single acting hollow hydraulic jack/cylinder/ram (12-100 tons)
Double acting hydraulic jack/cylinder/ram (50-2000 tons)
Double acting hollow hydraulic jack/cylinder/ram (50-2000 tons)
Single acting hydraulic jack/cylinder/ram with lock nut (55-200 tons)
Thin type single acting hydraulic jack/cylinder/ram (10-200 tons)
Ultrathin hydraulic jack/cylinder/ram (10-200 tons)
Flange type hydraulic jack/cylinder/ram (10-630 tons)
Synchronous hydraulic jack (10-1000 tons)
Hydraulic accessories: high pressure oil hose, couplers, seal kits, mainfold, etc.
All the tonnage, stroke, height can be customized according to client’s requirements, supply the best quality and serve. Our warranty is 2 years.
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Certification: CE, SGS
Pressure: High Pressure
Work Temperature: Normal Temperature
Acting Way: Double Acting
Working Method: Rotary
Adjusted Form: Switching Type


rotary cylinder

How do rotary cylinders manage variations in hydraulic pressure and flow rate?

Rotary cylinders are designed to effectively manage variations in hydraulic pressure and flow rate. Here’s a detailed explanation:

1. Pressure Regulation: Rotary cylinders incorporate various mechanisms to manage variations in hydraulic pressure. These mechanisms include pressure relief valves, pressure control valves, and flow control valves. Pressure relief valves are designed to protect the cylinder and the hydraulic system from excessive pressure by diverting excess fluid flow back to the reservoir. Pressure control valves, such as pressure reducing valves or pressure sequence valves, are used to regulate the pressure applied to the rotary cylinder. These valves ensure that the cylinder operates within the desired pressure range, accommodating variations in the hydraulic system.

2. Flow Control: Rotary cylinders also utilize flow control mechanisms to manage variations in hydraulic flow rate. Flow control valves, such as flow restrictors or flow control regulators, are employed to control the amount of fluid flowing into or out of the cylinder. By adjusting the opening of these valves, the flow rate can be regulated, allowing for precise control of the cylinder’s rotational speed or angular displacement. Flow control valves help manage variations in flow rate and optimize the cylinder’s performance.

3. Proportional Control: Proportional control valves are often used in conjunction with rotary cylinders to manage variations in pressure and flow rate. These valves provide continuous and precise control over the hydraulic pressure and flow by adjusting the valve opening proportionally to the input signal. Proportional control allows for real-time adjustments in response to changing operational requirements, ensuring accurate and efficient management of pressure and flow variations.

4. Feedback Devices: Rotary cylinders can incorporate feedback devices, such as pressure sensors and flow sensors, to monitor and provide feedback on the hydraulic pressure and flow rate. These sensors provide real-time information about the operating conditions, allowing for dynamic adjustments to maintain desired pressure and flow levels. Feedback devices help ensure the stability and consistency of the cylinder’s performance, even in the presence of variations in hydraulic pressure and flow rate.

5. Accumulators: In some cases, rotary cylinders can utilize hydraulic accumulators to manage variations in pressure and flow rate. Accumulators store hydraulic energy in the form of pressurized fluid, which can be released when needed to compensate for fluctuations in pressure or flow. By providing an additional source of energy, accumulators help maintain consistent pressure and flow, preventing adverse effects caused by sudden changes in hydraulic conditions.

6. System Design and Optimization: Proper system design and optimization play a crucial role in managing variations in hydraulic pressure and flow rate. This includes selecting appropriate components, sizing the hydraulic lines, and ensuring proper fluid filtration and conditioning. By designing the hydraulic system to match the requirements of the rotary cylinder and the application, variations in pressure and flow rate can be effectively managed, resulting in optimal performance.

By employing these strategies and mechanisms, rotary cylinders can effectively manage variations in hydraulic pressure and flow rate, ensuring reliable and consistent performance in a wide range of applications.

rotary cylinder

Can rotary cylinders be applied in both mobile and stationary machinery?

Yes, rotary cylinders can be applied in both mobile and stationary machinery. Here’s a detailed explanation:

1. Mobile Machinery: Rotary cylinders find extensive use in mobile machinery, such as construction equipment, agricultural machinery, material handling equipment, and transportation vehicles. In these applications, rotary cylinders enable controlled rotational motion for various functions, including steering, lifting, tilting, opening and closing attachments, and actuating hydraulic brakes. The compact design and versatility of rotary cylinders make them well-suited for mobile machinery, where space and weight considerations are crucial.

2. Stationary Machinery: Rotary cylinders are also widely utilized in stationary machinery across various industries. They play a crucial role in applications such as industrial automation, manufacturing processes, packaging equipment, robotics, and machine tools. In stationary machinery, rotary cylinders provide controlled rotation for tasks such as part positioning, indexing, clamping, cutting, and material handling. The precise and repeatable rotational motion offered by rotary cylinders contributes to the overall efficiency and productivity of stationary machinery.

3. Versatile Mounting Options: Rotary cylinders come with versatile mounting options, allowing them to be easily integrated into different types of machinery, whether mobile or stationary. They can be mounted in various orientations and configurations to suit specific application requirements. This flexibility in mounting ensures that rotary cylinders can be effectively applied in diverse machinery designs.

4. Customization: Manufacturers offer a wide range of rotary cylinder models with different sizes, load capacities, and performance characteristics. This allows users to select the most suitable cylinder for their specific mobile or stationary machinery application. Additionally, rotary cylinders can be customized to meet specific requirements, such as stroke length, rotational speed, and mounting interfaces, further enhancing their applicability in both mobile and stationary contexts.

5. Environmental Considerations: Rotary cylinders are designed and engineered to withstand various environmental conditions encountered in both mobile and stationary machinery. They are constructed using durable materials that can withstand factors such as vibration, shock, temperature variations, and exposure to dust, moisture, or corrosive substances. This ensures reliable performance and longevity, regardless of whether the machinery is mobile or stationary.

6. Integration with Control Systems: Rotary cylinders can be seamlessly integrated into control systems, such as hydraulic or pneumatic control circuits, electronic control units (ECUs), or programmable logic controllers (PLCs). This integration allows for precise control and coordination of the rotary motion with other machine functions, enabling efficient operation and automation in both mobile and stationary machinery.

Overall, the adaptability, versatility, and performance characteristics of rotary cylinders make them suitable for application in a wide range of machinery, whether it is mobile or stationary, contributing to enhanced functionality and efficiency in various industries.

rotary cylinder

Can you explain the purpose and applications of rotary cylinders?

The purpose of rotary cylinders is to generate rotary or swinging motion in machinery and systems. Here’s a detailed explanation:


Rotary cylinders serve as actuators that convert fluid power, either hydraulic or pneumatic, into rotational motion. They are designed to provide controlled and precise rotary movement, allowing machinery and systems to perform various tasks that require rotation, swinging, or indexing motions.


Rotary cylinders find applications in a wide range of industries and machinery where rotational movement is required. Some common applications include:

  • Rotary Indexing Tables: Rotary cylinders are used in indexing tables that rotate workpieces or components at specific intervals for assembly, machining, or inspection processes.
  • Robotic Arms and Manipulators: Rotary cylinders enable the rotational movement of robotic arms and manipulators, allowing them to perform tasks such as picking, placing, and positioning objects.
  • Material Handling Equipment: Rotary cylinders are utilized in material handling equipment, such as rotary grippers or clamps, to manipulate and transport objects.
  • Conveyor Systems: Rotary cylinders are employed in conveyor systems to control the rotation or swinging of conveyor belts, facilitating the movement of materials or products.
  • Machine Tools: Rotary cylinders are integrated into machine tools, such as milling machines or lathes, to enable the rotation of workpieces for cutting, shaping, or drilling operations.
  • Packaging Machinery: Rotary cylinders play a crucial role in packaging machinery, allowing for the rotation and positioning of packaging components, sealing mechanisms, or labeling devices.


Rotary cylinders offer several advantages in machinery and industrial systems:

  • Compact Size: Rotary cylinders are generally compact in size, making them suitable for applications where space is limited.
  • High Torque Output: Rotary cylinders can deliver high torque output, enabling the handling of heavy loads or performing tasks that require significant rotational force.
  • Precise Control: Rotary cylinders provide precise control over rotational motion, allowing for accurate positioning and synchronization with other system components.
  • Versatility: Rotary cylinders can be used in both hydraulic and pneumatic systems, offering flexibility in system design and integration.

It’s important to note that the specific selection and application of rotary cylinders may vary depending on the requirements of the machinery or system. Manufacturers’ documentation and guidelines should be consulted for detailed information on the proper use and installation of rotary cylinders.

China best 50 ton hydraulic press cylinder for press machine   vacuum pump booster	China best 50 ton hydraulic press cylinder for press machine   vacuum pump booster
editor by CX 2024-03-06