Product Description

Product Description

 

Offshore & marine hydraulic cylinder:

Due to use at sea of the Offshore & marine hydraulic cylinder, The environment temperature change and strong corrosive of seawater.
Thus for hydraulic cylinder requirement in addition to the running reliability and service life time. Also must has the very high corrosion resistance.
So we carried out on the hydraulic cylinder piston rod strict control of nickel plating,chrome plating or plating ceramics. The hydraulic cylinder outer surface of the strict coating, silica Gel, Etc, such surface treatment. To ensure the hydraulic cylinder without rust after long time running.

Our products have applications in:

  • Port equipment;
  • Offshore structures;
  • Dredges;
  • Hatch covers;
  • Cranes and deck machinery;
  • Steering gear;
  • 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.

FAQ

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: Normal Temperature
Acting Way: Double Acting
Working Method: Straight Trip
Adjusted Form: Regulated Type
Customization:
Available

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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

How does a hydraulic ram handle variations in environmental conditions?

A hydraulic ram is designed to handle variations in environmental conditions effectively. Here's a detailed explanation:

1. Temperature: Hydraulic rams are designed to operate within a wide temperature range. The hydraulic fluids used in the system are formulated to maintain their viscosity and performance under different temperature conditions. Additionally, hydraulic systems may incorporate temperature control mechanisms, such as coolers or heaters, to regulate the fluid temperature and ensure optimal operation. This enables hydraulic rams to handle variations in temperature without significant impact on their performance.

2. Moisture and Humidity: Hydraulic rams are typically sealed to prevent moisture or humidity from entering the system. Seals and gaskets are used to create a barrier against external contaminants. Additionally, hydraulic systems may include desiccant breathers or moisture-absorbing elements to maintain dry and clean hydraulic fluid. These measures help protect the hydraulic ram from moisture-related issues such as corrosion or reduced lubrication, allowing it to operate reliably in humid environments.

3. Dust and Contaminants: Hydraulic rams are designed to withstand dust and contaminants commonly found in various environments. The use of air filters, hydraulic filters, and breathers helps prevent the ingress of particles into the hydraulic system. Regular maintenance, including filter replacement and system cleaning, ensures the hydraulic ram remains free from excessive contamination. By minimizing the impact of dust and contaminants, hydraulic rams can maintain their performance and longevity even in harsh or dirty environments.

4. Shock and Vibration: Hydraulic rams are built to handle shock and vibration that may occur during operation. Robust construction, including durable materials and proper mounting techniques, helps absorb and dissipate shocks and vibrations. Additionally, hydraulic systems may incorporate dampening elements or accumulators to further minimize the impact of sudden shocks or vibrations. These features enable hydraulic rams to maintain their stability and functionality even in applications subjected to high levels of vibration or shock.

5. Corrosion Resistance: Hydraulic rams are often designed with corrosion-resistant materials, such as stainless steel or corrosion-resistant coatings. This protects the ram from corrosion caused by exposure to moisture, chemicals, or corrosive environments. Proper maintenance, including regular inspection and cleaning, helps identify and address any signs of corrosion, ensuring the hydraulic ram's performance and longevity.

6. Environmental Considerations: In certain applications or industries, hydraulic rams may need to comply with specific environmental regulations. For example, they may need to meet certain standards for noise emissions, leakage prevention, or biodegradable hydraulic fluids. Manufacturers take these considerations into account during the design and production of hydraulic rams to ensure compliance and minimize environmental impact.

By incorporating temperature tolerance, moisture and humidity protection, dust and contaminant prevention, shock and vibration absorption, corrosion resistance, and environmental considerations, hydraulic rams are well-equipped to handle variations in environmental conditions. These design features contribute to the reliability, durability, and performance of hydraulic rams in diverse operating environments.

hydraulic cylinder

What is a hydraulic ram and how does it work?

A hydraulic ram is a type of water pump that utilizes the energy of flowing water to lift a portion of that water to a higher elevation. Here's a detailed explanation of its working principle:

A hydraulic ram consists of several key components:

  • Drive Pipe: The drive pipe is connected to a water source, such as a stream or a river. It carries the flowing water that provides the energy for the hydraulic ram.
  • Delivery Pipe: The delivery pipe carries the water from the hydraulic ram to the desired destination at a higher elevation.
  • Valve: The valve controls the flow of water within the hydraulic ram.
  • Air Vessel: The air vessel acts as an accumulator and helps maintain a constant flow of water.

The working principle of a hydraulic ram can be summarized in the following steps:

1. Water Flow: The hydraulic ram is installed in a location where there is a natural flow of water. As water flows through the drive pipe, it enters the hydraulic ram.

2. Water Hammer Effect: The flowing water gains momentum and velocity as it enters the hydraulic ram. When the water flow is abruptly stopped by the valve, the kinetic energy of the moving water is converted into pressure energy, creating a water hammer effect.

3. Valve Operation: The sudden increase in pressure due to the water hammer effect forces the valve to close, preventing the backward flow of water. This closure allows the pressure to build up in the hydraulic ram.

4. Air Vessel Operation: As the pressure builds up, it compresses the air in the air vessel. The compressed air acts as a cushion, absorbing the pressure fluctuations and maintaining a constant flow of water.

5. Delivery Phase: Once the pressure reaches a certain threshold and the valve closes, the compressed air in the air vessel pushes the water through the delivery pipe, lifting a portion of the water to a higher elevation.

6. Valve Reopening: As the water is pushed out through the delivery pipe, the pressure in the hydraulic ram decreases. This causes the valve to reopen, allowing the cycle to repeat.

7. Continuous Operation: The hydraulic ram operates continuously as long as there is a steady flow of water in the drive pipe. It uses the energy of the flowing water to lift a smaller portion of that water to a higher elevation, without the need for external power sources.

Hydraulic rams are commonly used in areas with a reliable water source and a need for pumping water to a higher elevation. They are particularly useful in remote locations or off-grid settings, where conventional power sources may not be readily available.

China Best Sales High Accuracy Seal Ring Trunnion 100 Ton Hydraulic RAM   vacuum pump for ac	China Best Sales High Accuracy Seal Ring Trunnion 100 Ton Hydraulic RAM   vacuum pump for ac
editor by CX 2024-03-11