




SMT16B/SMT/SMAPI series three-s screw pump is designed for continuous heavy load operation for industrial applications. It is a fixed displacement axially driven rotor pump. The mechanical balance between the three relatively moving screws inside and the self-lubricating of the main bearing parts ensure the low pressure pulsation, low noise and long life of the screw pump. We can also provide a variety of shell materials according to the needs and applications of different users.
Parameter Range
Flow range | 3~8000 L/min |
| Maximum working pressure | 16 Mpa |
| Working viscosity | 2~20000 cst |
| Medium temperature | -40~+200℃ |
| Working medium | Lubricating oil, hydraulic oil, diesel, heavy oil (fuel oil) or lubricating oil with similar properties |
Technical Characteristics
‧Low noise 50d(B)A, stable pulsation, low vibration
‧The pump shell can be made of alloy aluminum, cast iron or alloy steel
‧The inlet and outlet position can be rotated arbitrarily in four directions
‧Strong self-priming ability, better than other structural oil pumps
‧Installation form: horizontal, vertical, vertical plug-in and oil-immersion
Application Areas
It is widely used in industrial industries, such as metallurgy, power, petrochemical, shipbuilding and general equipment (compressors, injection molding machines, mining equipment).


SN series three-screw pumps are often used in medium and low-pressure lubrication systems. They are constant-flow axial conveying screw pumps with a continuous working pressure of 0-4MPa. Mechanical balance and self-lubrication of the main bearing parts are used between the three screws, with low-pressure pulsation, low noise and long service life. We can also provide various sealing types according to customer requirements.
Parameter Range
Flow range | 3~8000 L/min |
| Maximum working pressure | 4 Mpa |
| Working viscosity | 2~20000 cst |
| Medium temperature | -40~+200℃ |
| Working medium | Lubricating oil, hydraulic oil, diesel, heavy oil (fuel oil) or lubricating oil with similar properties |
Technical Characteristics
‧Low noise 50d(B)A, stable pulsation, low vibration
‧The pump shell is made of cast iron
‧Installation form: horizontal, vertical
Application Areas
It is widely used in industrial industries, such as metallurgy, power, petrochemical, shipbuilding and general equipment (compressors, injection molding machines, mining equipment).

The working principle of the 2GR twin-screw pump is to form a sealed space by rotating two screws in the pump body. As the screw rotates, the volume of these sealing spaces gradually increases and pushes the liquid from the suction end to the discharge end. Due to the rotation of the screw at equal speed, the flow of liquid outflow is uniform, ensuring the stability of the flow and the increase of pressure. It is suitable for a wide range of media, which can transport low viscosity or high viscosity media, and even media containing particles and corrosive substances. The twin-screw pump has self-priming ability and is suitable for various complex working conditions.
Parameter Range
Flow range | ~2000 m³/h |
| Maximum working pressure | 6 Mpa |
| Working viscosity | 2~10000 cst, Reduce the speed by up to 1x106 cst |
| Medium temperature | -20~+250℃ |
| Working medium | Such as heavy oil, residual oil, crude oil, asphalt, ink, paint, etc., and also suitable for various non lubricating media such as paraffin, latex, seawater, etc |
Technical Characteristics
‧Super Self-priming
‧Low noise, no agitation, no pulsation and smooth media transfer
‧High overall efficiency
‧Twin screw pumps of different configurations are suitable for a wide range of applications
‧It can realize the mixed transportation of gas and liquid
Application Areas
It is widely used in petroleum, chemical, metallurgy, electric power, shipping, pharmaceutical, food and other industries.


GR series high-pressure silent spiral gear pump design has the most leading technical advantages in China. The spiral teeth, shapes and surfaces are completely meshed, and the flow of fluid is stable without pulsation. In terms of structural design, the source of noise has been eliminated - pressure fluctuation, no trap oil phenomenon, can carry higher pressure and flow rate, and have higher volumetric efficiency compared with other rotors.
Parameter Range
Flow range | 4~200 cm³/rev |
| Maximum working pressure | 30 Mpa |
| Working viscosity | 1.4~10000 cst |
| Medium temperature | -40~+200℃ |
| Working medium | Lubricating oil, hydraulic oil, diesel, heavy oil (fuel oil) or lubricating oil with similar properties |
Technical Characteristics
‧Low noise ≤ 55dB(A), stable pulsation, low vibration
‧The pump shell is made of alloy aluminum
‧Can be connected in series at multiple levels
‧Installation form: horizontal, vertical, vertical plug-in and oil-immersed
Application Areas
Widely used in the vehicle industry and hydraulic system equipment, such as hydraulic power devices for construction machinery such as vehicles, drilling rigs, cranes, elevators, rollers, as well as servo electro-hydraulic systems, such as injection molding machines, die-casting machines, bending machines, test benches, servo simulations, etc.




The design of HF series low-pressure spiral gear pump has the most leading technical advantages in China. The spiral teeth, shape and tooth surface are completely meshing, and the flow of the fluid is stable and no pulsating. From the structural design, the root cause of noise has been eliminated - pressure fluctuations, no trapped oil phenomenon, modular design can be selected in a variety of configurations, especially suitable for the use of media with high viscosity and high gas content.
Parameter Range
Flow range | 4~200 cm³/rev |
| Maximum working pressure | 2.5 Mpa |
| Working viscosity | 1.4~20000 cst |
| Medium temperature | -40~+200℃ |
| Working medium | Lubricating oil, hydraulic oil, diesel, heavy oil (fuel oil) or lubricating oil with similar properties |
Technical Characteristics
‧Low noise ≤65dB(A), smooth pulsation, low vibration
‧The pump casing material can be selected as gray cast iron or ductile iron
‧Optional safety valve
‧Rotation direction options: right, left, bidirectional
‧Installation forms: horizontal, vertical
Application Areas
Widely used in wind turbine gearbox lubrication and general product lubrication systems.

GR series internal meshing rotor pump is a product specially developed and designed for the wind power industry. It is used in the lubrication and cooling of gearboxes. It procures high-precision tooth grinding technology with an accuracy of up to level 4, improves gear hardness through carburizing and quenching process, and provides products with more reliable, more stable performance and longer service life. At the ambient temperature of -52°C, it still has a strong self-absorption ability to avoid poor oil absorption. Since 2016, it has been serving the wind power industry and supporting mechanical pumps for gearboxes.
Parameter Range
Flow range | 125~220 cm³/rev(Customizable other displacement products) |
| Maximum working pressure | 2.5 Mpa |
| Working viscosity | 1.4~20000 cst |
| Medium temperature | -40~+200℃ |
| Working medium | Lubricating oil, hydraulic oil or lubricating oil with similar properties |
Technical Characteristics
‧Low noise ≤68dB(A), smooth pulsation, low vibration
‧The pump casing material can be selected as gray cast iron or ductile iron
‧Bidirectional rotatable
‧Installation form: Gearbox shaft end installation
Application Areas
Widely used in wind power gearbox products.

The VHS series screw flowmeter is a product designed for measuring and monitoring the flow rate of lubricating media. It uses the principle of volumetric measurement to measure flow rate, with a measurement accuracy of ± 0.5%. Screw flow meters are suitable for various fluid media, high viscosity media, and lubricating media, and are not affected by viscosity. We can also provide ECI-1 device configurator with various interface forms and related software according to customer requirements.
Parameter Range
Flow range | 1.4~2500 L/min |
| Maximum working pressure | 35 Mpa |
| Working viscosity | 40000 cst |
| Medium temperature | -25~80℃(Special selection can reach up to 150 ℃) |
| Working medium | G 1"~G 2½" |
Technical Characteristics
‧The measurement results are stable and not easily affected by viscosity
‧0-10V, 4-20mA frequency/pulse output, freely optional
‧Lightweight and compact in shape
‧Can be used to measure forward and reverse flow rates
Application Areas
Widely used in various industries such as laboratory, chemical, environmental protection, metallurgy, medicine, papermaking, etc.
If you have any questions, please feel free to contact us