Product Description

Factory Customized Double Acting Hydraulic Ram
 

1. Cylinder Tube 
(1)Material: Standard using ASTM 1571(steel 20), ASTM 1035(steel 35), ASTM 1040(steel 40) with Ra0.4 after honing and rolling.
(2)Tube choosing: standard is cold drawn seamless steel tube, if need hot rolling seamless steel tube, please inform us before quotation. 
(3)Advice: Low pressure can use steel 20, high pressure can use steel 45. If customers have other special material request, can talk with us before quotation.

2. Piston Rod
(1) Material: Standard using ASTM 1035(steel 35) and ASTM 1045(steel 45).
(2) Piston Rod choosing: CHINAMFG piston rod and hollow piston rod (one of hollow piston rod end needs an air vent for welding and heating)
(3). Process: Quenching and tempering to reach hardness 229-285HB after roughing machining, if necessary, we also can reach hardness 45-55HRC after high frequency quenching. Standard chrome plated thickness is 25μm(if need more thickness, please inform us before quotation).

3. Piston
(1) Material: Standard material is wear-resisting cast iron, gray iron(HT300, HT350), steel and aluminum alloy, forging group II.
(2) The concentricity tolerance between piston and piston rod is 0.03mm.

4. Cylinder Cover
(1) Material: Cast iron for low pressure, gray iron HT300 for middle-low pressure. ASTM 1035(steel 35), ASTM 1045(steel 45) for middle-high pressure.
(2) Cylinder Cover choosing: It is better to use cast iron when cylinder cover also same function as guide sleeve, and melt brass, bronze or other wear-resisting material on the guide surface. If using the construct of pressing guide sleeve into cylinder cover, then the guide sleeve material should use wear-resisting cast iron, brass or bronze.

5. Seals
(1)Seals choosing: Good seal performance, low friction coefficient and small installation space of O-ring type Seals for low pressure, standard use our domestic brand. Middle-high pressure seals, we will use Y type, U type or V combined seals.

(2) Material:

Material NBR HNBR PU FKM/FPM FFPM FFPM(Special) PTEF
Limited  Temp. -30ºC~110ºC -30ºC~135ºC -30ºC~120ºC -20ºC~200ºC -20ºC~240ºC -20ºC~320ºC -55ºC~260ºC

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Certification: GS, CE, ISO9001
Pressure: Medium Pressure
Work Temperature: Normal Temperature
Acting Way: Double Acting
Working Method: Straight Trip
Adjusted Form: Switching Type
Samples:
US$ 99/Piece
1 Piece(Min.Order)

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Customization:
Available

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hydraulic cylinder

How does a hydraulic ram manage variations in load capacity and weight?

A hydraulic ram employs various mechanisms and design features to effectively manage variations in load capacity and weight. Here's a detailed explanation:

1. Pressure Adjustments: Hydraulic rams can manage variations in load capacity by adjusting the operating pressure. By regulating the pressure within the hydraulic system, the force output of the ram can be controlled. This allows the ram to accommodate different load capacities and weights by adjusting the pressure accordingly. Pressure can be adjusted using pressure control valves or regulators.

2. Piston and Cylinder Design: The design of the piston and cylinder in a hydraulic ram contributes to managing variations in load capacity. The piston area determines the force output of the ram, while the cylinder diameter determines the load-carrying capacity. By selecting the appropriate piston and cylinder sizes, the hydraulic ram can be tailored to handle different load capacities and weights. Larger piston and cylinder sizes are used for heavier loads, while smaller sizes are suitable for lighter loads.

3. Mechanical Advantage: Hydraulic rams can leverage mechanical advantage to manage variations in load capacity and weight. By incorporating mechanical systems such as levers, linkages, or gears, the force applied to the hydraulic ram can be multiplied. This mechanical advantage allows the ram to handle higher load capacities and weights than what the hydraulic pressure alone would be able to achieve.

4. Accumulators: Hydraulic rams can utilize accumulators to manage variations in load capacity. An accumulator is a device that stores hydraulic energy in the form of pressurized fluid. During periods of low demand, excess hydraulic energy can be stored in the accumulator. When there is a sudden increase in load capacity or weight, the stored energy can be released to supplement the hydraulic ram's force output, ensuring smooth operation and efficient management of variations in load.

5. Control Systems: Advanced hydraulic ram systems can incorporate control systems to manage variations in load capacity and weight. These control systems can monitor the load conditions and adjust the hydraulic pressure, flow rate, or other parameters accordingly. By continuously adapting to changes in load, the hydraulic ram can optimize its performance and maintain consistent force output, regardless of variations in load capacity and weight.

6. Safety Features: Hydraulic rams may include safety features to protect against excessive loads or weight. These features can include overload protection mechanisms, such as pressure relief valves or limit switches, which prevent the hydraulic ram from operating beyond its safe load capacity. By incorporating such safety features, hydraulic rams can effectively manage variations in load while ensuring operational safety.

Through pressure adjustments, piston and cylinder design, mechanical advantage, accumulators, control systems, and safety features, hydraulic rams can efficiently manage variations in load capacity and weight. This versatility makes hydraulic rams suitable for a wide range of applications where load variations are encountered.

hydraulic cylinder

Can hydraulic rams be employed in material handling equipment for pushing or lifting?

Yes, hydraulic rams are commonly employed in material handling equipment for pushing or lifting operations. Here's a detailed explanation:

1. Pushing Operations: Material handling equipment, such as forklifts, pallet jacks, or skid steer loaders, often require the ability to push heavy loads. Hydraulic rams are utilized in these machines to provide the necessary pushing force. The hydraulic ram is connected to the machine's hydraulic system and applies force to a pushing mechanism, such as forks or blades, allowing the equipment to move and push materials efficiently. The force generated by the hydraulic ram enables smooth and controlled pushing operations, enhancing productivity in material handling tasks.

2. Lifting Operations: Hydraulic rams are extensively employed in material handling equipment for lifting heavy loads. Equipment such as cranes, scissor lifts, or hydraulic elevators utilize hydraulic rams as lifting mechanisms. The hydraulic ram, typically in the form of a hydraulic cylinder, is connected to the equipment's hydraulic system and exerts force to raise or lower the load. By extending or retracting the hydraulic ram, the equipment can lift or lower materials with precision. The hydraulic system provides the necessary power and control for safe and efficient lifting operations.

3. Load Capacity and Control: Hydraulic rams are designed to handle a wide range of load capacities in material handling equipment. The size and specifications of the hydraulic ram are determined based on the required lifting or pushing force. By selecting the appropriate hydraulic ram, material handling equipment can effectively handle various loads, from light to extremely heavy. Additionally, hydraulic systems offer precise control over the movement of the hydraulic ram, allowing operators to lift or push materials with accuracy and control, minimizing the risk of damage or accidents.

4. Safety Features: Material handling equipment employing hydraulic rams often incorporate safety features to ensure safe operation. These features may include overload protection, safety valves, or locking mechanisms to prevent accidental movement or collapse of the hydraulic ram. Safety measures contribute to the safe and reliable use of hydraulic rams in material handling equipment, protecting both operators and the materials being handled.

5. Versatility and Adaptability: Hydraulic rams offer versatility and adaptability in material handling equipment. They can be integrated into various types of equipment, including mobile or stationary machines, and are suitable for different environments and industries. Hydraulic rams can be customized to meet specific requirements, such as stroke length, speed, or load capacity, ensuring optimal performance in material handling applications.

In summary, hydraulic rams are commonly employed in material handling equipment for pushing or lifting operations. They provide the necessary force, load capacity, and control to efficiently handle materials. With their safety features, versatility, and adaptability, hydraulic rams play a crucial role in enhancing productivity and safety in material handling processes.

hydraulic cylinder

How does a hydraulic ram handle variations in hydraulic pressure?

A hydraulic ram is designed to handle variations in hydraulic pressure through the use of specific components and mechanisms. Here's a detailed explanation:

1. Air Vessel: The air vessel, also known as the air chamber or air dome, is a crucial component in a hydraulic ram. It contains compressed air, which acts as a cushioning medium. When the hydraulic ram is in operation, variations in hydraulic pressure cause fluctuations in water flow. The air vessel absorbs these pressure fluctuations by compressing or expanding the air inside it. This helps maintain a more constant and steady flow of water through the ram.

2. Valve Mechanism: The valve mechanism in a hydraulic ram plays a significant role in handling variations in hydraulic pressure. During the drive phase, the valve opens, allowing water to enter the ram. As the water flows in, it gains velocity and momentum. When the hydraulic pressure reaches a certain threshold, the valve closes rapidly, creating a water hammer effect.

This water hammer effect generates a high-pressure pulse that lifts a portion of the water to a higher elevation. The valve opening and closing are controlled by the pressure differentials and the design of the valve mechanism. This mechanism helps regulate and stabilize the hydraulic pressure within the ram, enabling it to handle variations in pressure.

3. Waste Valve (Optional): Some hydraulic ram designs incorporate a waste valve. The waste valve serves as a safety mechanism to handle excessive pressure build-up. If the pressure inside the ram becomes too high, the waste valve opens, allowing excess water or air to escape. This prevents damage to the hydraulic ram and ensures its safe operation.

4. Seals and Gaskets: Seals and gaskets are essential components that prevent leakage of water or air from the hydraulic ram. They help maintain the necessary pressure differentials and ensure that variations in hydraulic pressure are effectively managed. By preventing leaks, the seals and gaskets contribute to the overall efficiency and performance of the hydraulic ram.

By utilizing these components and mechanisms, a hydraulic ram can effectively handle variations in hydraulic pressure. The air vessel, valve mechanism, optional waste valve, and sealing elements work together to maintain a stable flow and prevent damage to the ram, ensuring its reliable and efficient operation.

China Best Sales Factory Customized Double Acting Hydraulic RAM   vacuum pump electricChina Best Sales Factory Customized Double Acting Hydraulic RAM   vacuum pump electric
editor by CX 2024-02-16