China OEM Oxygen Nitrogen Argon CO2 Dewar Cryogenic Liquid Gas Cylinder vacuum pump for ac

Product Description

Main Performance features of high pressure dewar gas tank:
1. It is mainly used for transportation and storage of liquid oxygen dewar tank, liquid nitrogen, liquid argon, liquefied natural gas and liquid carbon dioxide.
2. Adopt high vacuum multi-layer adiabatic mode to ensure low evaporation rate.
3. The built-in carburetor automatically provides 10Nm3/h of stable and continuous gas.
4. The gas phase space overpressure gas is preferred in the solar term device.
5, the use of international general CGA standard joints, all imported valve configuration.
6. Unique damping ring design meets frequent transportation requirements.
7. Suitable for: electronics, scientific research, chemical industry, welding, LNG supply and other industries.

Medium pressure cryogenic liquid container gas dewar cylinder 
Model DPL-175 DPL-195 DPL-210 DPW-499
size mm Φ505×1551mm Φ505×1675mm Φ505×1761mm 2113×760×995mm
working pressure(MPa) 1.37 1.37 1.37 1.59
Relief valve take-off pressure(MPa) 1.59 1.59 1.59 1.89
Bursting pressure of the bursting disc(MPa) 2.41* 2.41* 2.41* 2.41(2.86*)
Geometric volume (L) 175 195 210 499
Effective volume(L) 160 180 195 460
Evaporation rate (liquid nitrogen) 2.10% 2.02% 1.99% 1.70%
Empty cylinder weight(kg) 125 135 140 345
Filling Medium O2(kg) 170 190 205 478
N2(kg) 120 134 145 334
Ar(kg) 208 232 250 585
LNG(kg) 70 78 84 196
High pressure product cryogenic liquid container gas dewar cylinder 
Model DPL-175H DPL-196H DPL-210H DPW-499H
size mm Φ505×1551 Φ505×1676 Φ505×1761 2113×760×995
working pressure(MPa) 2.3 2.3 2.3 2.5
Relief valve take-off pressure(MPa) 2.41 2.41 2.41 2.86
Bursting pressure of the bursting disc(MPa) 3.62* 3.62* 3.62* 3.62(4.14*)
Geometric volume (L) 175 195 210 499
Effective volume(L) 160 180 195 460
Evaporation rate (liquid nitrogen) 2.10% 2.02% 1.99% 1.70%
Empty cylinder weight(kg) 143 152 160 405
Filling Medium O2(kg) 170 190 205 478
N2(kg) 120 134 145 334
Ar(kg) 208 232 250 585
LNG(kg) 164 183 197 460

Q1: How to ensure your cylinders quality?
A:  we have been in this field for more than 20 years. Our products have been sold almost all over the world. We allow 3rd party inspections before shipment ( on buyer’s account) And we can supply certificate of quality accordingly.

Plus we have 6 machinery equipments to test material and cylinder:
1.           spectrum analyzer to detect chemical analysis;
2.           mechanical function to make tension test and bending test;
3.           X-ray silent detection to inspect circumferential weld;
4.           Hydraulic bursting test;
5.           Hydraulic testing;
6.           Air tightness test.

Q2:  About the brand name of the products?
A: In general, We use our own brand “DSW”, if you have requested, Both OEM and ODM arealso available.

Q3:Can you provide a sample?
In our acceptable range,  we can offer 1 free sample for you if you pay for the freight. We will return the freight if you make an order in future.

Q4: How about your delivery time?
In general, it will take 35-60 days after receiving deposit. The specific delivery time depends on the items and quantity of your order.

Q5: What is your MOQ?
Small quantity negotiable, 1 or more containers would be appreciated.

Material: Stainless Steel
Usage: Print, Automation and Control
Structure: Gas – Liquid Damping Cylinder
Power: Hydraulic
Standard: Standard
Pressure Direction: Single-acting Cylinder


hydraulic cylinder

How do hydraulic cylinders compare to other methods of force generation like electric motors?

Hydraulic cylinders and electric motors are two different methods of force generation with distinct characteristics and applications. While both hydraulic cylinders and electric motors can generate force, they differ in terms of their working principles, performance attributes, and suitability for specific applications. Here’s a detailed comparison of hydraulic cylinders and electric motors:

1. Working Principle:

– Hydraulic Cylinders: Hydraulic cylinders generate force through the conversion of fluid pressure into linear motion. They consist of a cylinder barrel, piston, piston rod, and hydraulic fluid. When pressurized hydraulic fluid enters the cylinder, it pushes against the piston, causing the piston rod to extend or retract, thereby generating linear force.

– Electric Motors: Electric motors generate force through the conversion of electrical energy into rotational motion. They consist of a stator, rotor, and electromagnetic field. When an electrical current is applied to the motor’s windings, it creates a magnetic field that interacts with the rotor, causing it to rotate and generate torque.

2. Force and Power:

– Hydraulic Cylinders: Hydraulic cylinders are known for their high force capabilities. They can generate substantial linear forces, making them suitable for heavy-duty applications that require lifting, pushing, or pulling large loads. Hydraulic systems can provide high force output even at low speeds, allowing for precise control over force application. However, hydraulic systems typically operate at lower speeds compared to electric motors.

– Electric Motors: Electric motors excel in providing high rotational speeds and are commonly used for applications that require rapid motion. While electric motors can generate significant torque, they tend to have lower force output compared to hydraulic cylinders. Electric motors are suitable for applications that involve continuous rotary motion, such as driving conveyor belts, rotating machinery, or powering vehicles.

3. Control and Precision:

– Hydraulic Cylinders: Hydraulic systems offer excellent control over force, speed, and positioning. By regulating the flow of hydraulic fluid, the force and speed of hydraulic cylinders can be precisely controlled. Hydraulic systems can provide gradual acceleration and deceleration, allowing for smooth and precise movements. This level of control makes hydraulic cylinders well-suited for applications that require precise positioning, such as in industrial automation or construction equipment.

– Electric Motors: Electric motors also offer precise control over speed and positioning. Through motor control techniques such as varying voltage, frequency, or pulse width modulation (PWM), the rotational speed and position of electric motors can be accurately controlled. Electric motors are commonly used in applications that require precise speed control, such as robotics, CNC machines, or servo systems.

4. Efficiency and Energy Consumption:

– Hydraulic Cylinders: Hydraulic systems can be highly efficient, especially when properly sized and designed. However, hydraulic systems typically have higher energy losses due to factors such as fluid leakage, friction, and heat generation. The overall efficiency of a hydraulic system depends on the design, component selection, and maintenance practices. Hydraulic systems require a hydraulic power unit to pressurize the hydraulic fluid, which consumes additional energy.

– Electric Motors: Electric motors can have high efficiency, especially when operated at their optimal operating conditions. Electric motors have lower energy losses compared to hydraulic systems, primarily due to the absence of fluid leakage and lower friction losses. The overall efficiency of an electric motor depends on factors such as motor design, load conditions, and control techniques. Electric motors require an electrical power source, and their energy consumption depends on the motor’s power rating and the duration of operation.

5. Environmental Considerations:

– Hydraulic Cylinders: Hydraulic systems typically use hydraulic fluids that can pose environmental concerns if they leak or are not properly disposed of. The choice of hydraulic fluid can impact factors such as biodegradability, toxicity, and potential environmental hazards. Proper maintenance and leak prevention practices are essential to minimize the environmental impact of hydraulic systems.

– Electric Motors: Electric motors are generally considered more environmentally friendly since they do not require hydraulic fluids. However, the environmental impact of electric motors depends on the source of electricity used to power them. When powered by renewable energy sources, such as solar or wind, electric motors can offer a greener solution compared to hydraulic systems.

6. Application Suitability:

– Hydraulic Cylinders: Hydraulic cylinders are commonly used in applications that require high force output, precise control, and durability. They are widely employed in industries such as construction, manufacturing, mining, and aerospace. Hydraulic systems are well-suited for heavy-duty applications, such as lifting heavy objects, operating heavy machinery, or controlling large-scale movements.

– Electric Motors: Electric motors are widely used in various industries and applications that require rotational motion, speed control, and precise positioning. They are commonly found in appliances, transportation, robotics, HVAC systems, and automation. Electric motorsare suitable for applications that involve continuous rotary motion, such as driving conveyor belts, rotating machinery, or powering vehicles.In summary, hydraulic cylinders and electric motors have different working principles, force capabilities, control characteristics, efficiency levels, and application suitability. Hydraulic cylinders excel in providing high force output, precise control, and durability, making them ideal for heavy-duty applications. Electric motors, on the other hand, offer high rotational speeds, precise speed control, and are commonly used for applications that involve continuous rotary motion. The choice between hydraulic cylinders and electric motors depends on the specific requirements of the application, including the type of motion, force output, control precision, and environmental considerations.

hydraulic cylinder

Integration of Hydraulic Cylinders with Equipment Requiring Rapid and Dynamic Movements

Hydraulic cylinders can indeed be integrated with equipment that requires rapid and dynamic movements. While hydraulic systems are generally known for their ability to provide high force and precise control, they can also be designed and optimized for applications that demand fast and dynamic motion. Let’s explore how hydraulic cylinders can be integrated with such equipment:

  1. High-Speed Hydraulic Systems: Hydraulic cylinders can be part of high-speed hydraulic systems designed specifically for rapid and dynamic movements. These systems incorporate features such as high-flow valves, optimized hydraulic circuitry, and responsive control systems. By carefully engineering the system components and hydraulic parameters, it is possible to achieve the desired speed and responsiveness, enabling the equipment to perform rapid movements.
  2. Valve Control: The control of hydraulic cylinders plays a crucial role in achieving rapid and dynamic movements. Proportional or servo valves can be used to precisely control the flow of hydraulic fluid into and out of the cylinder. These valves offer fast response times and precise flow control, allowing for rapid acceleration and deceleration of the cylinder’s piston. By adjusting the valve settings and optimizing the control algorithms, equipment can be designed to execute dynamic movements with high speed and accuracy.
  3. Optimized Cylinder Design: The design of hydraulic cylinders can be optimized to facilitate rapid and dynamic movements. Lightweight materials, such as aluminum alloys or composite materials, can be used to reduce the moving mass of the cylinder, enabling faster acceleration and deceleration. Additionally, the cylinder’s internal components, such as the piston and seals, can be designed for low friction to minimize energy losses and enhance responsiveness. These design optimizations contribute to the overall speed and dynamic performance of the equipment.
  4. Accumulator Integration: Hydraulic accumulators can be integrated into the system to enhance the dynamic capabilities of hydraulic cylinders. Accumulators store pressurized hydraulic fluid, which can be rapidly released to supplement the flow from the pump during high-demand situations. This stored energy can provide an extra boost of power, allowing for faster and more dynamic movements. By strategically sizing and configuring the accumulator, the system can be optimized for the specific rapid and dynamic requirements of the equipment.
  5. System Feedback and Control: To achieve precise and dynamic movements, hydraulic systems can incorporate feedback sensors and advanced control algorithms. Position sensors, such as linear potentiometers or magnetostrictive sensors, provide real-time position feedback of the hydraulic cylinder. This information can be used in closed-loop control systems to maintain precise positioning and execute rapid movements. Advanced control algorithms can optimize the control signals sent to the valves, ensuring smooth and dynamic motion while minimizing overshooting or oscillations.

In summary, hydraulic cylinders can be integrated with equipment that requires rapid and dynamic movements by utilizing high-speed hydraulic systems, employing responsive valve control, optimizing cylinder design, integrating accumulators, and incorporating feedback sensors and advanced control algorithms. These measures enable hydraulic systems to deliver the speed, responsiveness, and precision necessary for equipment operating in dynamic environments. By leveraging the capabilities of hydraulic cylinders, manufacturers can design and integrate systems that meet the requirements of applications demanding rapid and dynamic movements.

hydraulic cylinder

What maintenance practices are essential for extending the lifespan of hydraulic cylinders?

Maintaining hydraulic cylinders is crucial for extending their lifespan and ensuring optimal performance. Regular maintenance helps prevent premature wear, damage, and failure, ultimately reducing downtime and saving costs. Here are some essential maintenance practices to consider for extending the lifespan of hydraulic cylinders:

1. Regular Inspections:

– Conduct routine visual inspections of hydraulic cylinders to identify any signs of damage, leaks, or wear. Inspect the cylinder body, piston rod, seals, and mounting points. Look for fluid leaks, rust, dents, or any abnormal wear patterns. Early detection of issues allows for timely repairs or replacements, preventing further damage and extending the lifespan of the cylinder.

2. Cleanliness:

– Maintain a clean environment around hydraulic cylinders to prevent contaminants from entering the system. Dust, dirt, and debris can damage seals and other internal components, leading to accelerated wear and reduced performance. Regularly clean the cylinder and its surroundings to minimize the risk of contamination.

3. Proper Lubrication:

– Adequate lubrication is critical for the smooth operation and longevity of hydraulic cylinders. Follow the manufacturer’s recommendations for lubrication intervals and use the appropriate lubricant. Apply lubrication to the cylinder’s moving parts, such as the piston rod, to reduce friction and minimize wear.

4. Seal Maintenance:

– Seals play a vital role in preventing hydraulic fluid leaks and maintaining the cylinder’s performance. Inspect and replace worn or damaged seals promptly. Ensure that seals are properly installed and lubricated. Regularly clean the seal grooves to remove any debris that could compromise seal effectiveness.

5. Pressure Checks:

– Periodically check the hydraulic system’s pressure to ensure it is within the recommended operating range. Excessive pressure can strain the cylinder and its components, leading to premature wear. Monitor pressure levels and make adjustments as necessary to prevent overloading the cylinder.

6. Control Valve Maintenance:

– Maintain and inspect control valves that regulate the flow and direction of hydraulic fluid. Ensure that the valves are functioning correctly and not causing excessive stress or pressure spikes in the cylinder. Clean or replace control valves if they are damaged or malfunctioning.

7. Cylinder Alignment:

– Proper alignment of hydraulic cylinders is essential for their longevity. Misalignment can cause excessive side loads, leading to uneven wear and potential damage. Ensure that the cylinder is correctly aligned with other components and that the mounting points are secure.

8. Preventing Overloading:

– Avoid subjecting hydraulic cylinders to loads exceeding their rated capacity. Overloading can cause internal damage, seal failure, and reduced lifespan. Ensure that the load requirements are within the cylinder’s capabilities and consider using safety devices like overload protection systems when necessary.

9. Training and Operator Awareness:

– Provide proper training to equipment operators on the correct use and handling of hydraulic cylinders. Operators should be aware of the cylinder’s limitations, safe operating procedures, and the importance of regular maintenance. Promote a culture of proactive maintenance and encourage operators to report any potential issues promptly.

10. Documentation and Record-Keeping:

– Maintain detailed documentation of all maintenance activities, including inspections, repairs, and replacements. Keep records of lubrication schedules, pressure checks, and any maintenance performed on the hydraulic cylinders. This documentation helps track the cylinder’s history, identify recurring issues, and plan future maintenance effectively.

By following these maintenance practices, hydraulic cylinder lifespan can be extended, ensuring reliable performance and reducing the risk of unexpected failures. Regular inspections, cleanliness, proper lubrication, seal maintenance, pressure checks, control valve maintenance, cylinder alignment, preventing overloading, operator training, and documentation contribute to the overall longevity and optimal functioning of hydraulic cylinders.

China OEM Oxygen Nitrogen Argon CO2 Dewar Cryogenic Liquid Gas Cylinder   vacuum pump for ac	China OEM Oxygen Nitrogen Argon CO2 Dewar Cryogenic Liquid Gas Cylinder   vacuum pump for ac
editor by CX 2023-12-09

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