Product Description

Product Description


Metallurgy hydraulic cylinder:

Due to Metallurgy hydraulic cylinder the use in bad environment, The operation is frequent and high load, Work environment is always by high temperature, In the event of failure will affect production.
So we will considering the factors in above when we design of this kind of hydraulic cylinder, To check the each parts of the hydraulic cylinder strength, stability. Etc.
And select the suitable seal form, prevent leakage problems, And set up the buffering mechanism, to ensure the stationarity of hydraulic cylinder when running, To improve the hydraulic cylinder series problem due to design.

Our products have applications in:

  • Industrial;
  • Furnace;
  • Molding;
  • Rolling;
  • Mills;
  • Continuous casting machine;
  • Etc.

Product Parameters

Material Carbon steel, Alloy steel, Stainless steel
Honed tube 20-2500mm, Heat treatment, honing, rolling
Piston rod 10-2000mm ,tempering, plated nickel, Chromium or ceramic
Working Pressure 5-300Mpa
Seals Parker,Merkel,Hallite
Technology Bosch CHINAMFG and Parker
Coating Sandblasting, primer, middle paint,  finish paint
Temperature range -40ºC to +300ºC
Work medium Hydraulic Oil 
Piston speed maximum 2m/s
Mounting style Earrings, flange, foot mounting, screw thread.

Product Application

Company Show

HETLOCK is a professional manufacturer of hydraulic cylinders in China, Founded in 1998, located in the international city of ZheJiang . Our plant is nearly 20000 square meter& We have 135 Employees including 11 experienced engineers and technical staff,More than 1800 type of hydraulic cylinder designed in every year. We can produce various kinds of hydraulic cylinders according to customer requirements.
The inside diameter of hydraulic cylinders can achieve the maximum 2500mm;
The hydraulic cylinders operating pressure can achieve the maximum 300MPa.


Q1:Are you a manufacturer or trading company?
A: We are a manufacturer.

Q2: How many years of production experience do you have?
A: We have over 20 years of production experience.

Q3: Can it be customized?
A: Both standard and non-standard products can be customized.

Q4: How to ensure product quality?
A: We strictly follow the quality process for production and 100% inspection of each batch of products.

Q5: What services can you provide?
A: According to customer requirements, we can provide a one-stop solution from design, production, and delivery to meet their needs.

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Certification: CE, ISO9001
Pressure: High Pressure
Work Temperature: High Temperature
Acting Way: Double Acting
Working Method: Straight Trip
Adjusted Form: Regulated Type


hydraulic cylinder

How does a hydraulic ram contribute to controlled and precise movement?

A hydraulic ram plays a crucial role in enabling controlled and precise movement. Here’s a detailed explanation:

1. Hydraulic Fluid: Hydraulic rams operate by utilizing hydraulic fluid, which acts as a medium for transmitting force. The fluid is incompressible, allowing force to be evenly distributed throughout the system. This property ensures that the movement of the ram is smooth and consistent, contributing to controlled and precise motion.

2. Flow Control: Hydraulic rams incorporate flow control mechanisms to regulate the rate of fluid flow. Flow control valves, such as throttle valves or flow restrictors, can be used to adjust the speed at which the fluid enters or exits the ram. By controlling the flow rate, the speed of the ram’s movement can be precisely managed, enabling controlled and precise motion.

3. Pressure Regulation: The hydraulic pressure within the system directly influences the force output and speed of the hydraulic ram. By controlling the pressure using pressure control valves or regulators, the movement of the ram can be finely tuned. Adjusting the pressure allows for precise control over the force applied by the ram, resulting in controlled and precise movement.

4. Piston and Cylinder Design: The design of the piston and cylinder in a hydraulic ram contributes to controlled and precise movement. The fit between the piston and cylinder is designed to minimize leakage and ensure smooth operation. This tight clearance helps maintain accurate positioning and prevents unwanted movement or drift, allowing for precise control over the ram’s motion.

5. Proportional Control Systems: Advanced hydraulic ram systems can incorporate proportional control systems that enable precise movement control. These control systems use sensors and feedback mechanisms to monitor and adjust the position, speed, and force of the ram in real-time. By continuously adapting to changing conditions, the control system ensures precise and accurate movement, even in complex applications.

6. Position Sensing: Hydraulic rams can be equipped with position sensing devices, such as linear transducers or encoders, to provide feedback on the ram’s position. This feedback allows for precise positioning of the ram and ensures accurate movement control. The position sensing information can be used in conjunction with control systems to achieve the desired level of precision in the ram’s motion.

Through the use of hydraulic fluid, flow control mechanisms, pressure regulation, piston and cylinder design, proportional control systems, and position sensing devices, hydraulic rams contribute to controlled and precise movement. These features make hydraulic rams well-suited for applications that require accurate positioning, gradual motion, or precise force application.

Can hydraulic rams be applied in both mobile and stationary machinery?

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

Hydraulic rams are versatile components that find applications in various industries and machinery types. Their ability to generate and transmit high forces makes them suitable for a wide range of mobile and stationary applications.

1. Mobile Machinery: Hydraulic rams are commonly used in mobile machinery, such as construction equipment, agricultural machinery, material handling vehicles, and transportation vehicles. In these applications, hydraulic rams are utilized for tasks such as lifting, pushing, pulling, tilting, and steering. Mobile machinery often requires compact and efficient power systems, and hydraulic rams provide the necessary force multiplication capabilities while being adaptable to different operational conditions.

2. Stationary Machinery: Hydraulic rams are also extensively employed in stationary machinery across various industries. Examples include hydraulic presses, industrial robots, machine tools, hydraulic lifts, and heavy-duty equipment. In stationary machinery, hydraulic rams are utilized for precision positioning, applying controlled force, clamping, bending, or pressing operations. The ability to control and adjust the force, speed, and position of hydraulic rams makes them ideal for applications that require accurate and repeatable motion.

3. Common Applications: Hydraulic rams can be found in a wide range of specific applications. For mobile machinery, this may include the hydraulic cylinders used in excavators to control the boom, arm, and bucket movements. In stationary machinery, hydraulic rams are often employed in hydraulic presses for metal forming, hydraulic clamps for workholding, or hydraulic actuators for precise motion control. The flexibility of hydraulic rams allows for customization to suit specific requirements in diverse industries.

4. Advantages in Both Mobile and Stationary Machinery: The use of hydraulic rams provides several advantages in both mobile and stationary machinery. These include high force output, adjustable force and speed, smooth operation, compact design, reliability, and durability. Hydraulic systems offer efficient power transmission and can be easily integrated into different machinery designs, making them a popular choice in a wide range of applications.

Overall, hydraulic rams can be effectively applied in both mobile and stationary machinery, offering the benefits of force multiplication, precise control, and adaptability to diverse operational requirements.

hydraulic cylinder

Can hydraulic rams be used in construction equipment like bulldozers?

Yes, hydraulic rams are commonly used in construction equipment like bulldozers. Here’s a detailed explanation:

1. Blade Control: Bulldozers are equipped with large blades mounted at the front, which are used for various tasks such as pushing and leveling soil, debris, or other materials. Hydraulic rams play a crucial role in controlling the movement of these blades. The hydraulic rams are connected to the bulldozer’s hydraulic system and enable the operator to adjust the angle, height, and tilt of the blade. By utilizing hydraulic rams, bulldozer operators can precisely control the blade’s position and apply the necessary force for efficient earthmoving and grading operations.

2. Ripper Attachment: Bulldozers often have ripper attachments at the rear of the machine. The ripper is used to break up hard or compacted soil, rocks, or pavement surfaces. Hydraulic rams are utilized to control the movement of the ripper attachment. The rams enable the operator to raise, lower, and angle the ripper, allowing for effective penetration and loosening of the ground. Hydraulic rams provide the necessary force and control to handle tough materials and enhance the bulldozer’s versatility in various construction applications.

3. Track System: Bulldozers feature a track system for mobility and traction on rough terrain. Hydraulic rams are integral components of the bulldozer’s track system, responsible for controlling the movement and tension of the tracks. The rams allow for adjustments in track tension to optimize the grip and stability of the bulldozer when operating on different ground conditions. By utilizing hydraulic rams in the track system, bulldozers can maneuver efficiently and maintain traction even in challenging construction environments.

4. Hydraulic Power: Hydraulic rams in bulldozers are powered by a hydraulic system that consists of a hydraulic pump, valves, and actuators. The hydraulic system provides the necessary power and control to operate the hydraulic rams effectively. Bulldozers typically have robust hydraulic systems capable of generating high forces, allowing the rams to exert significant pushing or lifting capabilities. The hydraulic power provided by the system enables bulldozers to perform heavy-duty construction tasks with precision and efficiency.

5. Operator Control: Bulldozer operators have control over the hydraulic rams through hydraulic control levers or joysticks in the operator cabin. These controls allow operators to manipulate the position, speed, and force of the hydraulic rams, providing precise control over the blade and ripper attachments. The intuitive and responsive nature of hydraulic controls enhances the operator’s ability to perform tasks accurately and efficiently.

In summary, hydraulic rams are extensively used in construction equipment like bulldozers to control the blade and ripper attachments, manage the track system, provide hydraulic power, and offer operator control. The integration of hydraulic rams enhances the performance, versatility, and productivity of bulldozers in various construction and earthmoving applications.

hydraulic cylinder

Can you explain the purpose and applications of hydraulic rams?

The purpose of hydraulic rams is to pump water from a lower elevation to a higher elevation using the energy of flowing water. They have various applications in different fields. Here’s a detailed explanation:

1. Water Supply: Hydraulic rams are commonly used in water supply systems to pump water from a natural water source, such as a river or a stream, to a higher elevation. They can provide a reliable and efficient method of delivering water to areas that are located uphill or at a distance from the water source. This application is particularly useful in rural areas, agricultural settings, and remote locations where access to electricity or conventional pumping systems may be limited.

2. Irrigation: Hydraulic rams play a crucial role in agricultural irrigation. They can be used to pump water from a nearby water source, such as a river or a reservoir, to fields located at higher elevations. By utilizing the energy of flowing water, hydraulic rams eliminate the need for electricity or fuel-powered pumps, making irrigation systems more cost-effective and sustainable.

3. Drainage and Flood Control: Hydraulic rams can also be employed in drainage and flood control systems. They can be used to pump excess water from lower-lying areas to higher elevations or drainage channels. By utilizing the energy of flowing water, hydraulic rams can effectively remove water from flood-prone areas without the need for external power sources.

4. Water Recycling and Treatment: Hydraulic rams are utilized in water recycling and treatment systems. They can pump water from lower treatment stages to higher stages, facilitating the movement of water through different treatment processes. Hydraulic rams provide a sustainable and energy-efficient solution for water treatment facilities.

5. Hydropower Generation: In addition to pumping applications, hydraulic rams can also be used to generate hydropower. By harnessing the energy of flowing water, hydraulic rams can drive turbines or generators to produce electricity. This application is particularly useful in off-grid locations or areas with access to a reliable water source but limited electrical infrastructure.

6. Environmental Applications: Hydraulic rams are employed in various environmental applications, including fish passage systems, water circulation in aquaculture facilities, and water feature installations. Their ability to pump water without external power sources makes them suitable for environmentally sensitive areas.

Overall, hydraulic rams provide a sustainable and efficient solution for pumping water to higher elevations in a wide range of applications. They are particularly beneficial in areas with a natural flow of water and where access to electricity or conventional pumping systems is limited or impractical.

China supplier Tie-Rod Honed Tube Small Hydraulic RAM   vacuum pump ac system	China supplier Tie-Rod Honed Tube Small Hydraulic RAM   vacuum pump ac system
editor by CX 2024-03-08