Product Description


Product Description

Hydraulic Equipment includes Engineering Hydraulic Cylinder, Hydraulic Cylinder for metallurgical equipment, Hydraulic Cylinder For Industry and Thin Hydraulic Cylinder, etc. 

Characteristics and Applications of Engineering Hydraulic Cylinders:
DGRHSGx01-Eseries are all double acting single piston rod hydraulic cylinders, which are actuators in the hydraulic system that move in a straight line. It has simple structure, reliable operation, with other characteristics like convenient assembly and disassembly, easy maintenance, and diverse
connection methods.
The installation method often adopts earring type. According to the connection method between the cylinder head and the cylinder block, it can be divided into three types: external thread connection, internal key connection, and flange connection.
The engineering hydraulic cylinder mainly uses hydraulic systems for engineering machinery cities, heavy machinery piles, lifting and transportation
machinery, and mining machinery combs.

Detailed Photos



Product Parameters


Table 1: Table of Connection Methods for Internal Thread Cylinder Barrel of Piston Rod

ltem Connection method Remarks
1 Cylinder bottom earring
with bushings
2 Cylinder bottom earring
with ball joint bearing
3 Middle trunnion For cylinder
4 End flange
5 Intermediate Flange

Table 2:Table of Connection Methods For External Thread Cylinder Barrel of Piston Rod

ltem Connection method Remarks
1 Cylinder bottom earring
with bushings
2 Cvlinder bottom earring
with ball joint bearing
3 Middle trunnion For cylinder
4 End flange
5 IntermediateFlange

Table 3: Table of Buffer Parts

ltem Position Remarks
0 Unbuffered Cylinder diameter  Φ40,Φ50,Φ63
without buffering
1 Buffered at both ends When the speed ratio is Φ=2,
only the bottom end of the
cylinder is equipped with a buffer
2 Buffer at the bottom
of the cylinder
3 Rod end with buffer


1. Speed ratio ϕ refers to the ratio of the effective area of the piston to the effective area of the piston rod cavity.
2. The rod diameter size in the speed ratio of 1.46 is the preferred series.
3.In principle, the maximum stroke: ϕ=1.33, S=8D; ϕ=1.46, S=10D; ϕ=2, S=12D.
4. When the user’s required S exceeds the maximum stroke specified in the table, it should be resolved through mutual consultation.
5. The minimum stroke for non hinged shaft and middle flange connections shall be as shown in the table above.
6. 1MPa is approximately equal to 10Kgf/cm2

Models for your choosing:
1, DGRHSG*01 Series Cylinder Bottom Earrings Internal Thread
2, DGRHSG*01 Series Middle Trunnion Internal Thread
3, DGRHSG*01 Series End Flange Internal Thread
4, DGRHSG*01 Series Intermediate Flange Internal Thread
5, DGRHSG*01 Series Cylinder Bottom Earrings External Thread
6, DGRHSG*01 Series Middle Trunnion External Thread
7, DGRHSG*01 Series End Flange External Thread
8, DGRHSG*01 Series Intermediate Flange External Thread

Below parameters for models 1, 2, 7 and 8 please contact me to get parameters for other models



The engineering hydraulic cylinder mainly uses hydraulic systems for engineering machinery cities, heavy machinery piles, lifting and transportation machine, and mining machinery combs.

Our Advantages

1. Excellent Material Selection Strict selection of materials, professional processing of the inner wall, smooth operation, and long service life
2.Fine workmanship prevents oil leakage, greatly improves service life, saves a lot of maintenance costs, reduces friction resistance, and provides overall Mechanical efficiency
3. Easy installation It is very convenient to use, without the need for any matching accessories, reducing installation costs
4. Not prone to oil leakage Stable performance: The oil cylinder adopts excellent sealing components, with good sealing effect to maintain normal operation at high speed
5. Strict quality inspection and assurance of quality Each 1 is made with precision craftsmanship, using excellent standards to process and produce stable structures, saving time and effort, and making it easy to use.

Company Profile

HangZhou Packway Technology Development Co., LTD, Founded in March 2005, has been at the forefront of innovation, constantly striving to develop cutting-edge technologies and solutions. We currently operate 3 subsidiary companies, each connected with different sectors of the machinery market.

History of the 3 branches:

HangZhou Superworker Technology Co., LTD, established in June 2011, is an innovative enterprise specialized in industrial packaging. The main products and services include: automatic mechanical equipment (steel belt /PET belt strapping machine, clipping belt machine, marking spray machine, labeling machine, etc.), intelligent industrial packaging unit (coil, wire, plate, etc.), intelligent coil logistics system, transformation and upgrading services of similar products, repair and maintenance services of related equipment, supply of wearing parts and consumables. The SUPERWORKER has strong R&D strength and Customers from both domestic and international markets.

With the wide application of automation equipment, HangZhou Dagongren Electric Cylinder Technology Co., Ltd came into being in 2014. We are engaged in designing and manufacturing linear motion products, including servo/stepper motor electric cylinders,  linear actuators, multi-degree of freedom platforms, synchronization lifting platforms, VR simulators, etc., with features of high positioning accuracy, low noise, and long life. Our products have been widely used in automated warehousing, robotics, automation equipment, medical equipment, and AGV, vehicles, etc.

Works Hydraulic Technology (HangZhou) Co..Ltd, deeply rooted in the hydraulic, electronic control, and mechanical related industries, focuses on the research and development, production, and sales of electromechanical and hydraulic products. With a professional approach to providing personalized solutions for customers as the main model. Works mainly produces various hydraulic equipment, lubrication equipment, electronic control systems, hydraulic cylinders, and other products.



Q1. What are your terms of packing?
A: Generally, we pack our goods in neutral white boxes and brown wooden cartons. If you have a legally registered patent, we can pack the goods in your branded boxes after getting your authorization letters.
Q2. What are your terms of payment?
A: T/T 50% as deposit, and 50% before shipping. We’ll show you the photos of the products and packages before you pay the balance.
Q3. What are your terms of delivery?
Q4. How about your delivery time?
A: Generally, it will take 10-25 days to produce the products, and 5days by air, 25 days of the ship by sea. The specific delivery time depends on the items and the quantity of your order.
Q5: How is the warranty system?
A: 1~5 years. (upon the deal)
Q6. Can you produce according to the samples?
A: Yes, we can produce by your samples or technical drawings. We can build the molds and fixtures.
Q7. What is your sample policy?
A: We can supply the sample, but the customers have to pay the sample cost and the courier cost.
Q8. Do you test all your goods before delivery?
A: Yes, we have a 100% test before delivery.

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


single acting hydraulic cylinder

Can single-acting hydraulic cylinders be applied in automotive repair and maintenance?

Yes, single-acting hydraulic cylinders can be applied in automotive repair and maintenance. Here’s a detailed explanation:

Automotive repair and maintenance involve various tasks that often require the use of hydraulic systems to exert force, control movement, and facilitate repairs. Single-acting hydraulic cylinders are commonly employed in automotive applications due to their versatility and effectiveness.

Here are some examples of how single-acting hydraulic cylinders are applied in automotive repair and maintenance:

1. Lifting and Lowering Vehicles: Single-acting hydraulic cylinders, such as bottle jacks or scissor jacks, are widely used for lifting vehicles during repair and maintenance procedures. These cylinders provide the necessary force to raise the vehicle, allowing mechanics to access the underside for tasks like tire changes, inspections, or repairs.

2. Suspension System Repairs: Automotive suspension systems often require repairs or replacements of components such as struts, shocks, or springs. Single-acting hydraulic cylinders can be used to compress and decompress suspension components, facilitating their removal and installation.

3. Brake System Maintenance: Single-acting hydraulic cylinders are employed in brake system maintenance tasks, such as caliper piston retraction or brake line bleeding. The cylinders can apply force to retract the caliper pistons during brake pad replacement or enable hydraulic pressure to purge air from the brake lines.

4. Power Steering System Maintenance: Single-acting hydraulic cylinders are utilized in power steering system maintenance procedures. For example, when replacing power steering fluid, a cylinder can assist in purging air from the system by turning the steering wheel lock-to-lock while the engine is off.

5. Engine Hoists: Single-acting hydraulic cylinders are integral components of engine hoists or cherry pickers. These cylinders provide the lifting force necessary to remove and install engines for repair or replacement purposes.

6. Body and Frame Repairs: In automotive body and frame repairs, single-acting hydraulic cylinders can be applied to straighten damaged components. Using hydraulic force, these cylinders assist in realigning and reshaping panels or frames affected by collisions or accidents.

It is important to note that while single-acting hydraulic cylinders are commonly used in automotive repair and maintenance, the specific cylinder type and size may vary depending on the task at hand. Additionally, safety precautions, such as using appropriate supports and following manufacturer guidelines, should always be followed when working with hydraulic systems.

In summary, single-acting hydraulic cylinders find valuable applications in automotive repair and maintenance tasks, including lifting vehicles, suspension system repairs, brake system maintenance, power steering system maintenance, engine hoisting, and body and frame repairs. Their ability to provide controlled force and movement makes them essential tools for automotive professionals and enthusiasts.

single acting hydraulic cylinder

How does a single-acting hydraulic cylinder contribute to load distribution and control?

A single-acting hydraulic cylinder plays a crucial role in load distribution and control. Here’s a detailed explanation:

Load distribution refers to the equitable distribution of force across multiple points or components in a system. Load control involves regulating and managing the force applied to the load. Single-acting hydraulic cylinders contribute to both load distribution and control in hydraulic systems. Here are some key points on how they achieve this:

1. Force Transmission: Single-acting hydraulic cylinders act as force-transmitting devices in hydraulic systems. They convert hydraulic energy into linear force, which is then applied to the load. By transmitting force to the load, the cylinders distribute the applied force across the load-bearing components. This ensures even distribution of force, preventing localized stress concentrations and promoting balanced load handling.

2. Load Sharing: In systems where multiple hydraulic cylinders are used, load sharing is essential to maintain uniform force distribution. Single-acting hydraulic cylinders can be connected in parallel or series configurations to share the load. Parallel connection allows multiple cylinders to work together, dividing the load proportionally among them. Series connection enables sequential force application, with each cylinder taking a portion of the load. This load sharing capability ensures equal force distribution, enhancing system efficiency and stability.

3. Pressure Regulation: Single-acting hydraulic cylinders contribute to load control through pressure regulation. The hydraulic fluid pressure determines the force exerted by the cylinder. By controlling the pressure through valves or regulators, the force applied to the load can be precisely adjusted. This control allows for accurate load handling and enables fine-tuning of the force applied to different components or stages within a system.

4. Speed Control: Load control also involves regulating the speed at which the load is moved or operated. Single-acting hydraulic cylinders offer speed control capabilities through flow control valves. By adjusting the flow rate of hydraulic fluid entering or exiting the cylinder, the extension and retraction speeds of the piston can be controlled. This feature allows for smooth and controlled movement of the load, preventing sudden or excessive accelerations that may lead to instability or damage.

5. Safety Measures: Single-acting hydraulic cylinders contribute to load control by incorporating safety measures. Pressure relief valves can be integrated into the hydraulic system to protect against overloading. These valves release excess pressure to prevent damage to the cylinder or other system components. By ensuring that the load remains within safe operating limits, the cylinders contribute to load control and help maintain system integrity.

It is important to properly size and select single-acting hydraulic cylinders based on the load requirements and system design. Considerations such as load capacity, pressure ratings, and flow rates should be taken into account.

In summary, single-acting hydraulic cylinders contribute to load distribution and control by transmitting force, sharing loads, regulating pressure, controlling speed, and incorporating safety measures. Their functionality and versatility make them valuable components in hydraulic systems, ensuring efficient and controlled load handling.

single acting hydraulic cylinder

How does a single-acting hydraulic cylinder handle variations in hydraulic pressure?

A single-acting hydraulic cylinder is designed to handle variations in hydraulic pressure in a specific manner. Here’s a detailed explanation:

1. Extending Stroke: During the extending stroke of a single-acting hydraulic cylinder, hydraulic pressure is applied to the pressure chamber through the hydraulic port. The pressure acts on the piston, causing it to move in the outward direction, extending the piston rod. The force generated by the hydraulic pressure is directly proportional to the pressure and the effective area of the piston.

2. Return Stroke: Unlike double-acting hydraulic cylinders that can generate force in both directions, single-acting cylinders rely on external forces or mechanisms for the return stroke. Once the hydraulic pressure is released or redirected, external forces such as gravity, springs, or other mechanical means push the piston back to its original position.

3. Handling Pressure Variations: Single-acting hydraulic cylinders are designed to accommodate variations in hydraulic pressure in the following ways:

  • Pressure Limitations: Single-acting cylinders have pressure limitations specified by their design and construction. These limitations ensure that the cylinder can safely handle the maximum hydraulic pressure it is rated for without experiencing structural failure or damage.
  • Pressure Relief Valve: In some applications, a pressure relief valve may be installed in the hydraulic circuit to protect the hydraulic cylinder from excessive pressure. The relief valve opens when the pressure exceeds a predetermined limit, allowing the excess fluid to bypass the cylinder and maintain a safe operating pressure.
  • Sealing System: Single-acting cylinders have sealing systems that help contain the hydraulic pressure within the pressure chamber and prevent leakage. The seals, such as O-rings, rod seals, and wiper seals, are designed to withstand the pressure and provide an effective barrier between the pressure chamber and the return chamber.
  • Controlled Fluid Flow: The hydraulic system controlling the single-acting cylinder may incorporate flow control valves or regulators to regulate the rate of fluid flow. These components can help manage pressure variations by controlling the flow of hydraulic fluid into the pressure chamber during the extending stroke.

By considering pressure limitations, incorporating pressure relief valves, utilizing effective sealing systems, and implementing controlled fluid flow, single-acting hydraulic cylinders can handle variations in hydraulic pressure and maintain safe and reliable operation.

China Good quality 2024 Newly Double Acting Single Piston Rod Engineering Hydraulic Cylinders for Heavy Machinery for Wholesale   vacuum pump adapter	China Good quality 2024 Newly Double Acting Single Piston Rod Engineering Hydraulic Cylinders for Heavy Machinery for Wholesale   vacuum pump adapter
editor by Dream 2024-05-17