This section provides an overview for manual hydraulic pumps as well as their applications and principles. Also, please take a look at the list of 24 manual hydraulic pump manufacturers and their company rankings. Here are the top-ranked manual hydraulic pump companies as of November, 2023: 1.Baier hydraulic Power Wuhan Co., Ltd, 2.Kashon Power Equipment, 3.TorcStark.
A manual hydraulic pump is a hydraulic pump that can be operated manually. Manual hydraulic pumps are useful because they can be used at sites where power is not available, but they must be handled with care.
By pushing down the long handle toward the main body, pressure is applied to the shaft of the handle, and the pressure is transmitted to the discharge section through the inside of the main body, enabling the pump to discharge grease, etc. stored in the tank inside the main body.
Manual hydraulic pumps are used for greasing rotating equipment, such as electric motors. They are also used for greasing coolers in building air conditioning systems, where the distance between the rotating equipment and the grease inlet is relatively long.
Manual hydraulic pumps can apply relatively high pressures, with a maximum working pressure of 70 MPa (= 713.8 kg/㎠) in general, making it possible to pour even viscous grease-like fluids.
Manual hydraulic pumps are also available with two-stage switching or variable discharge pressure, and are used in different ways depending on the application.
Manual hydraulic pumps are based on Pascal's principle and the principle of leverage.
Pascal's principle states that "a pressure F (kN)" applied to one point of a fluid filled in a sealed container applies the same value of pressure to the entire inner surface of the container through the fluid.
For example, when the handle of manual hydraulic pumps are pushed down over an area of 1㎠ with a force of 7 kN, 70 MPa (7 kN/㎠≒70 MPa) is transmitted to the entire container in the fluid, and the same pressure of 7 kN/㎠ is applied to the discharge area. How this pressure is related to the discharge volume is related to the pressure-receiving area (㎠) and stroke (cm), so it is necessary to check the respective catalogs.
In addition, by lengthening the handle, manual hydraulic pumps can apply a force of 7 kN/㎠ even to a person without any strength, because the force is inversely proportional to the length of the handle due to the "leverage principle."
Here, the compression ratio is often negligible for liquids, whereas for gases such as air, it may have an effect, and air pumps require consideration of the discharge volume.
*Including some distributors, etc.
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Hydro Dynamics is an Indian manufacturer of hydraulic components and systems. The company was founded in 2011 and is headquartered in Belgaum, Karnataka. Its main activity is the design, development, and manufacturing of hydraulic products and components, including hydraulic jacks, hydraulic cylinders, hydro flat jacks, hydraulic power pack pumps, and valves. The company also offers a wide range of hydraulic systems, such as power packs, control valves, and manifolds. Hydro Dynamics' products are used by a wide range of customers, including the automotive, manufacturing, and construction industries.
Target Hydraulics Co. LTD, established in 2013, is a manufacturer of hydraulic cartridge valves, hydraulic valve manifold blocks, and mini hydraulic power pack units, headquartered in China. The company's products have a wide range of applications, including scissor lifts, tipping trailers, electric straddle stackers, hydraulic power units, and custom bespoke hydraulic systems. It's known for its depth of expertise in these areas and offer 3D design services worldwide. All its hydraulic power units are 100% hydraulic oil pressure tested before delivery. Its team of skilled technicians and hydraulics experts can help create the perfect system and get the components and products needed.
Jiangsu Canete Machinery Manufacturing Co., Ltd, established in 1978, based in Pudong New District, Shanghai, is a design and manufacturer of hydraulic products. The company’s product portfolio includes hydraulic cylinders (capacity covers from 10- 3000 tons), synchronous PLC hydraulic system, hydraulic bumps, hydraulic torque wrenches, electric torque wrenches, and hydraulic components. Their products are used domestically and abroad, such as the construction and maintenance of roads and bridges, installation and moving of offshore oil platforms, historic buildings, sports gymnasiums, blast furnaces, power equipment and ocean shipping manufacturing. The company provides a full range of engineering solutions for customers.
Enerpac, since 1910, has been a manufacturer of advanced industrial tools and a service provider located in MenomoneeFalls, Wisconsin, USA. The company produces power units, machine moving tools, pipe blenders, tension meters, and load cells. It also created cutters, gantries, presses, cylinders, and strand jacks used in aerospace, bridges, automotive, mining, and power generation industries. The firm offers rental products, training, hydraulic education, and services such as bolting, tool crib inspection, and calibration. It has 8 manufacturing facilities in The Netherlands, USA, Spain, UK, China, and India.
TorcStark, established in 2000 and based in Dezhou City, Shandong, China, is a manufacturer of hydraulic torque wrenches. The company also produces other products, such as hydraulic wrench pumps, automatic wrench pumps, hydraulic pullers, and 3D adjustment systems, while offering solutions for tightening or loosening the bolts and moving and positioning projects. All of its products are used in bridges, oil fields, subways, and installation and maintenance of wind farms. The products manufactured are used in 170 wind farms across China and hold quality management system certificates to abide by the standards while manufacturing.
Griphold Engineering Private Limited was founded in Gujarat, India, in 1996 as a manufacturer, supplier, trader, and exporter of heavy-duty industrial tools and equipment. The copmany offers a wide range of products, including hydraulic equipment, tool kits, pneumatic tools, torque wrenches, and cylinder jacks. These products are used in various industries, such as iron, petrochemicals, mining, automobiles, and shipbuilding. Its industrial tools and bolting solutions can also be customized upon client’s requests.
GIUSSANI S.R.L., founded in 1947 and headquartered in Bergamo, Italy, is a manufacturer of glass thermometers with electronic contacts, relays, and amplifiers. The company offers a range of products, including thermostatic calibrators, manual pressure generators, sanitary tap test benches, endurance test benches, and laboratory tables, and trolleys with universal supports. It also provides calibration and repair services, hydraulic laboratory tests, rental services for portable instruments, and second-hand thermostatic calibrators. These instruments are used in various applications, including the drying of Italian pasta and, more generally, in process control.
WIKA Group was founded in 1946 and is headquartered in Klingenberg, Germany. The company serves industries such as food and beverage, power generation, refrigeration, and semiconductor, but is primarily known for medical equipment. The company’s six primary product market segments are Pressure, Temperature, Level, Force, Flow, and Calibration. In addition, the company offers Industrial IoT services including conditional monitoring and alarming, asset tracking, predictive maintenance, and process automation. The company also offers standard calibration, repair, and consultancy services in addition to providing online tools for customer assistance.
Blain Hydraulics GmbH, established in 1971 and headquartered in Baden-Württemberg, Germany, is a manufacturer that specializes in the design and manufacture of elevator control valves. The company offers a wide range of products, including lift component, pipe rupture valve, micro leveling drives, home lift, and lift valves. It also provides safety valves, rupture valves, components such as pumps and motors, accessories such as hand Pumps, and more. Its products have self-cleaning filters with a high tolerance to oil contamination. The company has achieved ISO 9001 certification for its quality management. Moreover, it serves the hydraulic elevator industry.
Zenith Hydromatics, established in 1996 and headquartered in Ahmedabad, India, is a manufacturer of a vast range of hydraulic cylinders and more. The company fabricates hydraulic press cylinders, hydraulic power packs, hydraulic pressure jacks, hydraulic foot pumps, and hydraulic jacks. It also specializes in making hydraulic scissor lift tables, hydraulic hand pumps, oil lubrication systems, and high-pressure cylinders. Its hydraulic press cylinders have double-acting cylinders with a maximum pressure of 700 bar and can be used for hydraulic presses.