1. High-Quality Raw Materials Our raw materials are primarily sourced from renowned steel mills such as Jiangsu BOS Hydraulic Technology Co., Ltd., Baosteel, Ansteel, and Changjiang Steel Pipe.
2. Advanced Production Equipment Our manufacturing facilities include cold drawing machines, honing machines, skiving and roller burnishing machines, straightening equipment,polishing machines, heat treatment furnaces, grinding machines, and more.
3. Rich production experience, strict quality control We implement a professional internal quality control system to conduct comprehensive inspections on all products.
In the field of industrial power transmission, welded hydraulic cylinders have become the preferred actuator for many heavy-duty and high load application scenarios due to their unique structural design and excellent performance. It is not only a symbol of strength, but also synonymous with reliability and adaptability.
Extremely high structural strength and rigidity: key components such as cylinder barrel, cylinder bottom, and flange are welded together to form a cohesive structure. This structure eliminates weak links such as threaded connections, can withstand extremely high impact loads and lateral forces, and is not easily deformed.
Compact design and space efficiency: As there is no need to reserve additional wall thickness and space for threads, welded design can achieve a more compact overall structure, providing greater thrust within limited installation space.
Excellent sealing and reliability: The welded structure fundamentally eliminates potential leakage issues at threaded connections, resulting in superior sealing performance and extremely high long-term reliability.
Lightweight and cost-effective: Under the same load requirements, welded hydraulic cylinders can be designed to be lighter, saving material costs, and making transportation and installation more convenient.
Long lifespan and low maintenance: The sturdy structure and excellent sealing mean fewer failure points and longer service life, greatly reducing maintenance costs and downtime.
Welded hydraulic cylinder is a type of hydraulic cylinder that uses welding technology to permanently connect the main components such as cylinder barrel, cylinder bottom, end cover (or flange) together.
The design of the welding hydraulic cylinder enables it to easily cope with various complex and demanding working conditions:
Heavy duty high-pressure environment: Naturally suitable for continuous high-pressure and high impact applications such as construction machinery and metallurgical equipment.
Harsh working environment: The structure is sturdy and can better resist the erosion of dust, moisture, vibration, and corrosive substances.
Wide temperature range operation: Welding structures have stronger adaptability to temperature and are less likely to loosen connections due to temperature changes.
Customization requirements: Its structure is easy to modify and customize, and can be customized according to specific installation space, load requirements, and action processes for non-standard design, with strong adaptability.
Its working principle follows Pascal’s law, which is basically the same as all hydraulic cylinders:
Power input: The hydraulic pump pressurizes the hydraulic oil and injects it into the rodless or rodless chamber of the hydraulic cylinder through the oil port.
Pressure generation: The hydraulic oil under pressure generates strong pressure inside a sealed cylinder.
Force transmission: The pressure acting on the effective area of the piston is converted into a huge linear thrust or tension.
Motion output: The piston rod extends or retracts under the action of thrust, driving external mechanisms (such as buckets, molds, platforms) to complete a predetermined linear motion.
Reversing and control: By changing the direction of oil flow through the directional control valve, the reciprocating motion of the piston rod can be achieved.
Construction machinery: lifting, excavation, and steering mechanisms for excavators, cranes, loaders, and bulldozers.
Metallurgical equipment: the pressing device of the rolling mill, the opening of the furnace door of the steelmaking furnace, and the clamping of the mold.
Mining machinery: hydraulic supports, rock drilling rigs, crushers.
Aerospace: actuators for the lifting of aircraft maintenance platforms and simulation test benches.
Shipbuilding: servos, hatch opening and closing devices, marine cranes.
Injection molding machine: mold clamping and injection mechanism, requiring high pressure and high stability.
Special vehicles: lifting and dumping systems for dump trucks and sanitation vehicles.
The ultimate requirement for reliability and durability: When the equipment shutdown cost is extremely high or the working environment is harsh, the durability and long life of the welded hydraulic cylinder are the primary considerations.
Space limitation: In situations where installation space is limited but high thrust is required, its compact design is the only option.
Enduring high impact and heavy load: For applications with frequent start stop and drastic load changes, its integral structure can effectively avoid loosening and fatigue failure.
Long term cost considerations: Although the cost of purchasing a single item may be slightly higher, from the perspective of the entire lifecycle (including maintenance and downtime losses), its total cost of ownership is often lower.
Customization requirements: When standard cylinders cannot meet special stroke, installation methods, or performance requirements, the flexible design ability of welded cylinders becomes a decisive advantage.
The welding hydraulic cylinder technology is still evolving, and the future development trend mainly focuses on:
Lightweight and High Strength: Higher strength steel and aluminum alloys are used, and through topology optimization and other design methods, weight is further reduced while ensuring strength.
Intelligence and Condition Monitoring: Integrating sensors such as position, pressure, and temperature sensors to achieve real-time condition monitoring, fault prediction, and health management, moving towards Industry 4.0 and predictive maintenance.
New materials and new processes: Applying wear-resistant and corrosion-resistant surface treatment technologies, as well as more advanced welding processes (such as laser welding), to improve weld quality and product consistency.
Energy saving and efficiency: Optimize internal flow channels, reduce pressure loss, and improve overall energy efficiency.
Higher integration: Valve blocks, sensors, and other components are directly integrated onto the cylinder body to form a “plug and play” intelligent power module, simplifying system design.
