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  • Double acting hydraulic cylinder

Double acting hydraulic cylinder

A double-acting hydraulic cylinder is a hydraulic cylinder designed to provide force in two directions. It consists of a cylindrical barrel with a piston inside that can move in both directions with the help of pressurized hydraulic oil. A double-acting hydraulic cylinder has two hydraulic ports - one for the extension stroke and the other for the retraction stroke. When hydraulic oil is supplied to the extension port, it will push the piston outward, thereby creating a force in that direction. force, when hydraulic oil is supplied to the retraction port, it will push the piston inward, creating a force in the opposite direction.

  • Double acting hydraulic cylinder
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Nantong Huishang Heavy Industry Technology Co., Ltd.

Nantong Huishang Heavy Industry Technology Co., Ltd. is a professional China Double acting hydraulic cylinder suppliers and wholesale Double acting hydraulic cylinder manufacturers . Steel types include carbon bonded steel, composite steel, carbon steel, composite steel, bearing steel, roller steel, stainless steel, etc; Our main products include forged round steel, forged square steel, forged modules, step shafts, forged steel rollers, etc. Mainly providing supporting services for metallurgical, mining, and mechanical processing enterprises. Nantong Huishang Machinery Co., Ltd. has a team of personnel who have been engaged in forging business for many years and have good network resources in the industries of Jiangsu, Zhejiang, and Shanghai. Nantong Huishang Technology Co., Ltd. adheres to the business philosophy of "my responsibility" and is committed to building a service-oriented enterprise in the forging industry.

The company is committed to increasing product cost-effectiveness through technology. The company strictly adopts the following process for the products with high requirements: electric arc furnace+LF+VD → die casting → forging → heat treatment (→ machining), maintaining the chemical composition and mechanical performance requirements; Quality certification documents can also be provided according to customer requirements; Our company can also provide bright round steel (step shaft) and heat treatment according to customer needs. The heat treatment state can be normalized/annealed, quenched/tempered, etc.

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What is the working principle of a double acting hydraulic cylinder?

A double acting hydraulic cylinder is a precision mechanical device that is widely used in situations where linear motion control is required. Its working principle is based on a hydraulic system, which uses the pressure energy of the liquid to convert into mechanical energy to achieve bidirectional movement of the piston.
Hydraulic cylinder structure: A double acting hydraulic cylinder consists of a cylinder body, a piston, a piston rod, a seal, a hydraulic port, etc. The cylinder body is fixed and has a movable piston inside, which is connected to the external load through the piston rod.
Piston and seal: Seals are installed on both sides of the piston to ensure that the hydraulic oil does not leak from the high-pressure side to the low-pressure side. Seals are usually made of wear-resistant materials to ensure long-term stable performance.
Hydraulic port: A double acting hydraulic cylinder has two hydraulic ports, one for the extension stroke and the other for the retraction stroke. The two ports are connected to different outputs of the hydraulic pump respectively.
The role of pressure oil: When the hydraulic pump delivers pressure oil to the extension port, the piston is subjected to pressure and pushes the piston rod outward to achieve the extension stroke. On the contrary, when the pressure oil is delivered to the retraction port, the piston is subjected to pressure in the opposite direction, pushing the piston rod inward to achieve the retraction stroke.
Bidirectional force generation: Since the hydraulic cylinder can receive pressurized oil in two directions, it can generate force in both directions. This bidirectional force characteristic makes double acting hydraulic cylinders very useful in situations where precise control of linear motion is required.
Control of hydraulic cylinders: The movement of hydraulic cylinders can be precisely controlled by various control valves, such as directional control valves, pressure control valves, and flow control valves. These control valves can adjust the flow direction, pressure, and flow of hydraulic oil, thereby achieving precise control of the movement of the hydraulic cylinder.

What is the difference between double acting hydraulic cylinders and single-acting hydraulic cylinders?

Direction of movement: Double acting hydraulic cylinders can provide force and movement in two directions, while single-acting hydraulic cylinders can usually only provide force in one direction, and the movement in the other direction is usually achieved by springs or other mechanical devices.
Number of hydraulic ports: Double acting hydraulic cylinders have two hydraulic ports, one for controlling the extension and retraction strokes. Single-acting hydraulic cylinders usually have only one hydraulic port, which is used to control the unidirectional movement of the piston.
Source of force: The force of a double acting hydraulic cylinder can be provided by hydraulic oil in both directions, while the force of a single-acting hydraulic cylinder is usually provided by hydraulic oil in only one direction, and the force in the other direction is provided by other mechanisms.
Application: Since double acting hydraulic cylinders can provide force in two directions, they are more suitable for situations where bidirectional linear motion control is required, such as construction machinery, automation equipment, etc. Single-acting hydraulic cylinders are suitable for situations where only unidirectional force is required.
Design complexity: The design of double acting hydraulic cylinders is relatively complex, and it is necessary to consider the force balance and control in two directions. The design of single-acting hydraulic cylinders is relatively simple, and it mainly focuses on the transmission of unidirectional force.

Where are double acting hydraulic cylinders used in industry?

Construction machinery: In equipment such as excavators and cranes, double acting hydraulic cylinders are used to control the extension and retraction of mechanical arms to achieve precise load handling.
Automotive manufacturing: On automobile production lines, double acting hydraulic cylinders are used to control the precise movement of equipment such as presses and conveyor belts.
Aerospace: In aircraft manufacturing and maintenance, double acting hydraulic cylinders are used to control the positioning and movement of large components.
Medical equipment: In equipment such as operating tables and medical beds, double acting hydraulic cylinders are used to control the lifting and tilting of equipment to meet different treatment needs.
Automation equipment: On automated production lines, double acting hydraulic cylinders are used to control the precise movement of equipment such as mechanical arms and conveyor belts to improve production efficiency.
Agricultural machinery: In agricultural equipment such as tractors and harvesters, double acting hydraulic cylinders are used to control the extension and retraction of mechanical arms to achieve the harvesting and loading of crops.
Construction industry: In construction, double acting hydraulic cylinders are used to control the precise movement of equipment such as lifting platforms and cranes to improve construction efficiency and safety.
Shipbuilding: In shipbuilding and repair, double acting hydraulic cylinders are used to control the positioning and movement of hull components.
Oil and gas industry: In drilling platforms and pipeline transportation systems, double acting hydraulic cylinders are used to control the precise movement of equipment such as valves and pumps.
Metallurgical industry: In steel production, double acting hydraulic cylinders are used to control the precise movement of equipment such as rolling mills and forging machines to improve production efficiency and product quality.
The wide application of double acting hydraulic cylinders is due to their bidirectional force characteristics and precise motion control capabilities. With the development of industrial automation and precision manufacturing technology, the application of double acting hydraulic cylinders in various fields will become more and more extensive.