HP21VG Series Swashplate Variable Double Hydraulic Pumps
The HP21VG series swashplate variable double hydraulic pumps are innovative and high-performance hydraulic pumps designed to meet the demanding requirements of modern hydraulic systems. With advanced technology and exceptional features, these pumps deliver precise control, superior power transmission, and optimal energy efficiency. This article will delve into the key characteristics, usage methods, and maintenance guidelines for the HP21VG series swashplate variable double hydraulic pumps.
The HP21VG series swashplate variable double hydraulic pumps offer exceptional performance and efficiency for hydraulic systems. With their swashplate variable design, dual pump configuration, and high-pressure capacity, these pumps provide precise control and reliable power transmission. By following the recommended usage methods and adhering to regular maintenance practices, the HP21VG series pumps will continue to deliver outstanding performance, contributing to the success of hydraulic systems. Harness the efficiency and power of the HP21VG series swashplate variable double hydraulic pumps to optimize your hydraulic system’s capabilities.
HP21VG Series Swashplate Variable Double Hydraulic Pumps Key Characteristics:
- Swashplate Variable Design: The HP21VG series hydraulic pumps feature a swashplate variable design, allowing for precise adjustment of the pump’s displacement angle. This feature enables accurate control of the pump’s output, enhancing efficiency and reducing energy consumption.
- Double Pump Configuration: These pumps employ a dual pump configuration consisting of two independent pump units integrated into a single housing. This configuration provides the advantage of compactness while offering the flexibility of operating the pumps individually or in tandem, depending on the hydraulic system’s requirements.
- High Pressure and Flow Capacity: The HP21VG series pumps excel in high-pressure applications with their robust construction and advanced engineering. They deliver exceptional pressure capacity and volumetric flow performance, making them suitable for various industrial applications.
- Efficient Power Transmission: These hydraulic pumps ensure efficient power transmission, translating into improved system performance. Their precise control capabilities enable the hydraulic system to respond quickly and accurately to workload changes, optimizing overall productivity.
HP21VG Series Swashplate Variable Double Hydraulic Pumps Parameter:
| Specification | 21 | 45 | ||
| Geometric displacement cc/rev | 21*21 | 45*2 | ||
| Speed | Rated rpm | 3300 | 3300 | |
| max. rpm | 3600 | 3550 | ||
| Min. rpm | 500 | 500 | ||
| Pressure | Rated bar | 200 | 420 | |
| Max. bar | 250 | 450 | ||
| Min. bar | High-pressure side | 25 | 25 | |
| Low-pressure side | 10 | 10 | ||
| Oil viscosity (mm2/s) | 10~1000， Best range: 16~36 | |||
| Oil temperature (℃ ) | -20~80 | -20~95 | ||
| Oil cleanliness | ISO 4406 Class 20/18/15 or higher | |||
| Weight (Kg) | 25.9 | 56 | ||
HP21VG Series Swashplate Variable Double Hydraulic Pumps Advantages:
• Swashplate design axial piston pump for traveling machinery applications such as skid steer loader.
• Compact size, small installation space
• Various control modes, such as hydraulic control, electronic control, and manual control, can be developed.
• Combination of DA control valve and emergency shut-off valve, etc. (HP21VG45)
• Only one drain port is shared for two circuits
HP21VG Series Swashplate Variable Double Hydraulic Pumps Application:
Usage Method Of HP21VG Series Swashplate Variable Double Hydraulic Pumps:
- Pump Installation: Select an appropriate location in the hydraulic system to install the HP21VG Series Swashplate Variable Double Hydraulic Pumps. Ensure proper alignment and securely attach the pumps to the system’s structure using suitable mounting brackets or accessories.
- Fluid Compatibility: Verify that the hydraulic fluid used in the system is compatible with the HP21VG Series Pumps. Refer to the manufacturer’s recommendations for the appropriate fluid type, viscosity, and temperature range. Regularly monitor and maintain the hydraulic fluid to ensure proper pump operation and longevity.
- Integration with Hydraulic System: Connect the pumps to the hydraulic system using compatible hoses, fittings, and valves. Ensure all connections are secure, leak-free, and properly tightened to ensure optimal hydraulic performance.
- Control and Adjustment: Familiarize yourself with the control options provided with the HP21VG Series Pumps. Adjust the pump’s displacement angle and control parameters according to the specific requirements of the hydraulic system. This enables precise control over the pump’s output and ensures optimal performance.
How To Measure A Hydraulic Cylinder?
Measuring a hydraulic cylinder accurately is essential when it comes to determining the correct replacement or repair parts. Follow these steps to measure a hydraulic cylinder effectively:
- Determine the Type of Cylinder:
Identify whether the hydraulic cylinder is a single-acting or double-acting cylinder. Single-acting cylinders have one port for hydraulic fluid, while double-acting cylinders have two ports. - Measure the Bore Diameter:
The bore diameter refers to the internal diameter of the cylinder barrel. Follow these steps to measure it:- Ensure the cylinder is fully retracted or extended, depending on the type of cylinder.
- Use a caliper or micrometer to measure the inside diameter of the cylinder barrel. Take multiple measurements at different points and average them to ensure accuracy.
- Record the bore diameter in either inches or millimeters.
- Measure the Rod Diameter:
The rod diameter refers to the diameter of the piston rod extending from the cylinder. Here’s how to measure it:- Ensure the cylinder is fully retracted or extended, depending on the type of cylinder.
- Use a caliper or micrometer to measure the diameter of the rod. Again, take multiple measurements at different points and average them for accuracy.
- Record the rod diameter in either inches or millimeters.
- Determine the Stroke Length:
The stroke length refers to the total distance the piston rod can travel within the cylinder. To measure it:- Fully extend the cylinder and measure the distance from the center of the mounting hole on one end to the center of the mounting hole on the other end.
- Record the stroke length in either inches or millimeters.
- Identify the Mounting Style:
Determine the mounting style of the cylinder, which can vary depending on the application. Common mounting styles include flange, clevis, trunnion, and foot mount. Take note of the specific mounting style to ensure compatibility with replacement or repair parts. - Note Additional Specifications:
Depending on the specific hydraulic cylinder, there may be additional specifications to consider. These can include the overall length of the cylinder, the type and size of the ports, and any special features or modifications.
Capability & Capacity Of Factory:
(1) Assembly
We have a first-class independent research and development assembly platform. The hydraulic cylinder production workshop has four semi-automatic lifting cylinder assembly lines and one automatic tilt cylinder assembly line, with a designed annual production capacity of 1 million pieces. The special cylinder workshop is equipped with various specifications of a semi-automatic cleaning assembly system with a designed annual production capacity of 200,000 and equipped with famous CNC machining equipment, a machining center, a high-precision cylinder processing special equipment, a robot welding machine, an automatic cleaning machine, automatic cylinder assembly machine, and automatic painting production line. Existing critical equipment of more than 300 sets (sets). The optimal allocation and efficient use of equipment resources ensure the accuracy requirements of products and meet the high-quality needs of products.
(2) Machining
The machining shop is equipped with a customized inclined rail turning center, machining center, high-speed honing machine, welding robot, and other related equipment, which can handle the processing of cylinder tubes with a maximum inner diameter of 400mm and a maximum length of 6 meters.
(3) Welding
(4) Painting & coating
With small and medium-sized cylinder automatic water-based paint coating lines, to achieve automatic robot loading and unloading and automatic spraying, the design capacity of 4000 pieces per shift;
We also have a semi-automatic paint production line for large cylinders powered by a power chain, with 60 cases per shift design capacity.
(5) Testing
We have first-class inspection facilities and test beds to ensure that the performance of the cylinder meets the requirements.
We are one of the best hydraulic cylinder manufacturers. We can offer comprehensive hydraulic cylinders. We also provide corresponding agricultural gearboxes. We have exported our products to clients worldwide and earned a good reputation because of our superior product quality and after-sales service. We welcome customers at home and abroad to contact us to negotiate business, exchange information, and cooperate with us!