China wholesaler Forged Hollow Cylinder Hollow Steel Forging Forging Cylinder for Hydraulic Cylinder with high quality

Product Description


Product Description

Free Forging and Open Die Forging factory for 30 years.  
High Speed Gear transmission system parts manufacture 

ZPMC, CHINAMFG and ZheJiang Electric long term stable supplier.  

We produce and supply forged shaft blanks, forged step shafts blanks, forged flanged shaft blanks in carbon steel, alloy steel. These forged shaft blanks can be made up of carbon steel, and alloy steel. Like 40Cr steel, 40CrMo steel, etc. We can provide the heat treatment and rough machining service according to your requirement, This can help you to reduce your machining time and machining cost.

Industrial Uses for Custom Forged Discs, Rounds, & Cylinder Sleeves



    Our Forged Steel Products
    Tiangong Forging supplies a variety of semi-finished forged steel products, with the main materials being nickel-molybdenum steel, alloy steel, die steel, stainless steel and carbon steel. In addition to general steel grades such as 35#, 45#, 42CrMo, 42CrMo4, 18CrNiMo7-6, 20CrNi2Mo, 30CrNiMo8 and etc., we can also prepare the required steel according to other national specifications or specified alloy compositions requested by customers.

    The maximum production shaft forging length/weight is 12m/15T; the maximum gear and wheel forging diameter/weight is 1.9m/9T.
    We are particularly specialized in the forging of special-shaped forging parts. 

    Our main products:  
    A.Forged Gear Blank
    B.Wheel and Pulley
    C.Forged Shaft
    D.Hollow Shaft
    F.Multi-stepped Shaft
    G.Various forged blank and block
     I. Special-shaped Forging Parts

    Product Parameters

    Our open die forging process capabilities include:

    More Products

    Many industries utilize forged steel sleeves, rounds, and discs for industrial applications. They are often used by power generation and power transmission industries in blind flanges, tube sheets, and gears. At Great Lakes Forge, we work with customers in nearly every industrial sector. We provide our customers with the metal resources and custom-forged products required for various industrial applications. Industries we serve include:

    • Chemical Processing
    • Electric Motor Manufacturing
    • Food & Beverage Processing Equipment Manufacturing
    • Pelletizing & Compacting Equipment Production
    • Steel Milling
    • And many more


    Production Flow Chart

    Product Name

    Round Forging Bar


    Alloy Steel, Carbon Steel, SS


    Raw Material, Forging, Hot Treatment, CNC Machining


    OD 500-5000mm, Thickness >50mm




    10 Tons


    Machinery Parts, Wind Power, Areospacecraft, heaby duty equipment

    Surface Treatment

    Electroplate, Paint Spraying, Abrazine


    Carton Box

    Quality Control

    100% Inspected /ISO9001 System



    Factory Show

     Our company located in HangZhou city, ZheJiang province. Neaby ZheJiang .  With over 30 years of forging experience. Our focus is on using high-efficiency electro-hydraulic hammer facilities to produce free forged and open-die forged products.
    We are proud of our independent quality assurance laboratory, which ensures that all of our products meet our customers’ requirements.

    A. More than 25 years of professional free forging and open-die forging manufacturing experience
    B. The company covers an area of 71,000 square CHINAMFG
    C. The construction area of the production workshop is 12,000 square CHINAMFG
    D. Total number of employees: 158
    E. 28 engineering and technical personnel
    F. 59 skilled workers
    G. Annual production capacity is 38,000 tons
    H. Annual raw material steel throughput turnover reaches 56,000 tons 

    Reliable production
    At Tiangong Forging, we invest in production equipment every year to maintain and further improve the quality of our products.
    The only way to achieve the required quality is to start with a correctly specified material and process it on an efficient forging machine. To ensure the final standards required by our customers, a correct and precisely controlled heat treatment process is a key factor.
    Various types of high-precision machining equipment are also an important part of providing products with high customer satisfaction.

    1. 12 tons Electro-hydraulic Hammer with Operating Machine
    2. 8 tons Electro-hydraulic Hammer with Operating Machine
    3. 5 tons Electro-hydraulic Hammer with Operating Machine
    4. 20 tons Loader
    5. 5 tons Loader
    6. Natural Gas Pre-forging Heating Furnace
    7. Heat Treatment Electric Furnace
    8. There are 5 heat treatment electric furnaces with loading capacities of  5 tons, 15 tons, 50 tons, 60 tons and 60 tons respectively.
    9. Various Machining Equipment
    10. The machining center has multiple high-precision machining equipment such as CNC vertical lathes, CNC horizontal lathes, horizontal milling machines, radial drilling machines, ordinary horizontal lathes, sawing machines, etc

    Forged shaft blanks

    Flanged shafts, flange shafts and forged step shafts are used in a wide variety of industries including oil and gas exploration, machinery, gear manufacturing, aircraft and aerospace, energy and power generation, defense, automotive, heavy industrial, manufacturing, general metalworking, petroleum and chemical, mining, engine and turbine, ship building, construction, fabricated metal, pulp and paper, and food processing.

    Main Mateirals: Carbon Steel, Stainless Steel and Alloy steels;  

    International Standards: ASME, JIS, DIN, GB, BS, EN, AS, SABS, etc.    

    Standardization and Customization are both our advantages.   


    Our parts are widely used in oil drilling, Chemical Industry, Wind power generator, Large machinery parts Chemical industry,Agricultural machinery parts ship shaft fittings. Wind Power gearbox Transmission system. 

    HangZhou Port, HangZhou automatic Port, ZheJiang Yang shan Port, Italy Vado port. ZheJiang Tailway crane, Egypt hanging bridge, Sri Lanka railway crane, Thailand port bridge. South Korea railway crane, Hongkong island bridge, Singapore railway crane, Russia oil & mining machines and some miltary project. etc.

    Customized solutions
    Our modular process allows us to design solutions various industrial application requiring free-forged and open-die-forged parts. Our modularity means flexibility, wide choice, faster delivery and, above all, competitiveness.

    All Tiangong Forging, products and production processes are designed to ensure exceptional, reliable and long-lasting unique mechanical properties, thereby reducing operating costs and extending service life.
    With an extensive product range and extensive experience gained in most industrial applications, we can also provide engineering advice to our customers.


    Welcome to visit our factory!  Welcome to send inquiry to us.  

    Welcom Trading compamy to co-operate.  

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    Processing Object: Metal
    Molding Style: Forging
    Molding Technics: Free Forging
    US$ 1000/Ton
    1 Ton(Min.Order)


    Order Sample



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    Full Payment
    Currency: US$
    Return&refunds: You can apply for a refund up to 30 days after receipt of the products.

    hydraulic cylinder

    Are there any emerging trends in hydraulic cylinder technology, such as smart features?

    Yes, there are several emerging trends in hydraulic cylinder technology, including the integration of smart features. As industries continue to adopt advanced technologies and seek greater efficiency, hydraulic cylinders are being equipped with innovative capabilities to enhance their performance and provide additional benefits. Here are some of the emerging trends in hydraulic cylinder technology:

    1. Sensor Integration:

    – One of the significant trends in hydraulic cylinder technology is the integration of sensors. Sensors can be embedded within the hydraulic cylinder to monitor various parameters such as pressure, temperature, position, and load. These sensors provide real-time data, allowing for condition monitoring, predictive maintenance, and improved operational control. By collecting and analyzing data, operators can optimize the performance of hydraulic systems, detect potential issues in advance, and prevent failures, resulting in increased reliability and reduced downtime.

    2. Connectivity and IoT:

    – Hydraulic cylinders are being integrated into the Internet of Things (IoT) ecosystem, enabling connectivity and data exchange. By connecting hydraulic cylinders to a network, operators can remotely monitor and control their performance. IoT-enabled hydraulic cylinders facilitate features such as remote diagnostics, performance optimization, and predictive maintenance. The connectivity aspect allows for better integration with overall equipment systems and enables data-driven decision-making for improved efficiency and productivity.

    3. Energy-Efficient Designs:

    – With the increasing focus on sustainability and energy efficiency, hydraulic cylinder technology is evolving to incorporate energy-saving features. Manufacturers are developing hydraulic cylinders with improved sealing technologies, reduced friction, and optimized fluid flow dynamics. These advancements minimize energy losses and increase overall system efficiency. Energy-efficient hydraulic cylinders contribute to reduced power consumption, lower operating costs, and a smaller environmental footprint.

    4. Advanced Materials and Coatings:

    – The use of advanced materials and coatings is another emerging trend in hydraulic cylinder technology. Manufacturers are exploring lightweight materials, such as composites and alloys, to reduce the overall weight of hydraulic cylinders without compromising strength and durability. Furthermore, specialized coatings and surface treatments are being applied to improve corrosion resistance, wear resistance, and lifespan. These advancements enhance the longevity and reliability of hydraulic cylinders, particularly in demanding environments.

    5. Intelligent Control Systems:

    – Hydraulic cylinder technology is embracing intelligent control systems that optimize performance and enable advanced functionalities. These systems utilize algorithms, machine learning, and artificial intelligence to automate processes, adapt to changing conditions, and optimize hydraulic cylinder movements. Intelligent control systems can adjust parameters in real-time, ensuring precise and efficient operation. This trend allows for increased automation, improved productivity, and enhanced safety in hydraulic system applications.

    6. Predictive Maintenance:

    – Predictive maintenance is gaining prominence in hydraulic cylinder technology. By utilizing data collected from sensors and monitoring systems, predictive maintenance algorithms can analyze the condition and performance of hydraulic cylinders. This analysis helps to identify potential failures or degradation in advance, enabling proactive maintenance actions. Predictive maintenance reduces unplanned downtime, extends the lifespan of hydraulic cylinders, and optimizes maintenance schedules, resulting in cost savings and improved equipment availability.

    7. Enhanced Safety Features:

    – Hydraulic cylinder technology is incorporating enhanced safety features to improve operator and equipment safety. These features include integrated safety valves, load monitoring systems, and emergency stop functionalities. Safety systems in hydraulic cylinders help prevent accidents, protect against overloads, and ensure reliable operation. The integration of advanced safety features contributes to safer working environments and compliance with stringent safety regulations.

    These emerging trends in hydraulic cylinder technology demonstrate the industry’s focus on innovation, performance optimization, and sustainability. The integration of smart features, connectivity, advanced materials, and predictive maintenance capabilities enables hydraulic cylinders to operate more efficiently, provide real-time insights, and enhance overall system performance. As technology continues to advance, hydraulic cylinder technology is expected to evolve further, offering increased functionality and efficiency for various industries and applications.

    hydraulic cylinder

    How do hydraulic cylinders contribute to the efficiency of agricultural tasks like plowing?

    Hydraulic cylinders play a crucial role in improving the efficiency of agricultural tasks, including plowing. These cylinders provide several benefits that enhance the performance and productivity of agricultural machinery. Let’s explore how hydraulic cylinders contribute to the efficiency of plowing and other agricultural tasks:

    1. Powerful Force Generation: Hydraulic cylinders are capable of generating high forces, which is essential for tasks like plowing. The hydraulic system supplies pressurized fluid to the cylinders, converting hydraulic energy into mechanical force. This force is then utilized to drive plow blades through the soil, overcoming resistance and facilitating efficient soil penetration. The power generated by hydraulic cylinders ensures effective plowing, even in tough or compacted soil conditions.
    2. Adjustable Working Depth: Hydraulic cylinders allow for easy and precise adjustment of the plow’s working depth. By controlling the extension or retraction of the hydraulic cylinder, farmers can adjust the depth of the plow blades according to soil conditions, crop requirements, or their specific preferences. This adjustability enhances efficiency by ensuring optimal soil tillage and minimizing unnecessary energy expenditure. Farmers can adapt the plowing depth to different field areas, optimizing the use of resources and promoting uniform crop growth.
    3. Responsive Control: Hydraulic systems offer highly responsive control, enabling farmers to make quick adjustments during plowing operations. Hydraulic cylinders respond rapidly to changes in hydraulic pressure and valve settings, allowing for immediate modifications in the plow’s position, depth, or angle. This responsiveness enhances efficiency by facilitating on-the-go adjustments based on soil variations, obstacles, or changing field conditions. Farmers can maintain precise control over the plow’s performance, ensuring effective soil tillage and minimizing the risk of crop damage.
    4. Implement Versatility: Hydraulic cylinders enable the attachment of various implements to agricultural machinery, expanding their functionality and versatility. In the context of plowing, hydraulic cylinders allow for the attachment and detachment of plow blades or other tillage implements. This versatility enables farmers to adapt their equipment to different soil types, field sizes, or specific plowing requirements. By using hydraulic cylinders, farmers can easily switch between different implements, optimizing their equipment for specific tasks and maximizing efficiency.
    5. Efficient Time Management: Hydraulic cylinders contribute to time efficiency in agricultural tasks like plowing. With hydraulic systems, farmers can operate plows at higher speeds while maintaining control and precision. The responsive nature of hydraulic cylinders allows for efficient turning, maneuvering, and repositioning of plows, minimizing downtime and optimizing field coverage. This time efficiency translates into increased productivity and reduced overall operational costs. Farmers can accomplish plowing tasks more quickly, allowing them to cover larger field areas in less time.

    In summary, hydraulic cylinders significantly contribute to the efficiency of agricultural tasks like plowing. Through powerful force generation, adjustable working depth, responsive control, implement versatility, and efficient time management, hydraulic systems equipped with cylinders enhance the performance and productivity of agricultural machinery. These contributions allow farmers to accomplish plowing tasks more effectively, optimize field operations, and achieve improved overall efficiency in their agricultural practices.

    hydraulic cylinder

    How do hydraulic cylinders generate force and motion using hydraulic fluid?

    Hydraulic cylinders generate force and motion by utilizing the principles of fluid mechanics, specifically Pascal’s law, in conjunction with the properties of hydraulic fluid. The process involves the conversion of hydraulic energy into mechanical force and linear motion. Here’s a detailed explanation of how hydraulic cylinders achieve this:

    1. Pascal’s Law:

    – Hydraulic cylinders operate based on Pascal’s law, which states that when pressure is applied to a fluid in a confined space, it is transmitted equally in all directions. In the context of hydraulic cylinders, this means that when hydraulic fluid is pressurized, the force is evenly distributed throughout the fluid and transmitted to all surfaces in contact with the fluid.

    2. Hydraulic Fluid and Pressure:

    – Hydraulic systems use a specialized fluid, typically hydraulic oil, as the working medium. This fluid is stored in a reservoir and circulated through the system by a hydraulic pump. The pump pressurizes the fluid, creating hydraulic pressure that can be controlled and directed to various components, including hydraulic cylinders.

    3. Cylinder Design and Components:

    – Hydraulic cylinders consist of several key components, including a cylindrical barrel, a piston, a piston rod, and various seals. The barrel is a hollow tube that houses the piston and allows for fluid flow. The piston divides the cylinder into two chambers: the rod side and the cap side. The piston rod extends from the piston and provides a connection point for external loads. Seals are used to prevent fluid leakage and maintain hydraulic pressure within the cylinder.

    4. Fluid Input and Motion:

    – To generate force and motion, hydraulic fluid is directed into one side of the cylinder, creating pressure on the corresponding surface of the piston. This pressure is transmitted through the fluid to the other side of the piston.

    5. Force Generation:

    – The force generated by a hydraulic cylinder is a result of the pressure applied to a specific surface area of the piston. The force exerted by the hydraulic cylinder can be calculated using the formula: Force = Pressure × Area. The area is determined by the diameter of the piston or the piston rod, depending on which side of the cylinder the fluid is acting upon.

    6. Linear Motion:

    – As the pressurized hydraulic fluid acts on the piston, it generates a force that moves the piston in a linear direction within the cylinder. This linear motion is transferred to the piston rod, which extends or retracts accordingly. The piston rod can be connected to external components or machinery, allowing the generated force to perform various tasks, such as lifting, pushing, pulling, or controlling mechanisms.

    7. Control and Regulation:

    – The force and motion generated by hydraulic cylinders can be controlled and regulated by adjusting the flow of hydraulic fluid into the cylinder. By regulating the flow rate, pressure, and direction of the fluid, the speed, force, and direction of the cylinder’s movement can be precisely controlled. This control allows for accurate positioning, smooth operation, and synchronization of multiple cylinders in complex machinery.

    8. Return and Recirculation of Fluid:

    – After the hydraulic cylinder completes its stroke, the hydraulic fluid on the opposite side of the piston needs to be returned to the reservoir. This is typically achieved through hydraulic valves that control the flow direction, allowing the fluid to return and be recirculated in the system for further use.

    In summary, hydraulic cylinders generate force and motion by utilizing the principles of Pascal’s law. Pressurized hydraulic fluid acts on the piston, creating force that moves the piston in a linear direction. This linear motion is transferred to the piston rod, allowing the generated force to perform various tasks. By controlling the flow of hydraulic fluid, the force and motion of hydraulic cylinders can be precisely regulated, contributing to their versatility and wide range of applications in machinery.

    China wholesaler Forged Hollow Cylinder Hollow Steel Forging Forging Cylinder for Hydraulic Cylinder   with high quality China wholesaler Forged Hollow Cylinder Hollow Steel Forging Forging Cylinder for Hydraulic Cylinder   with high quality
    editor by Dream 2024-05-07