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Aquatech Co., Ltd.
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RP-P Photo
RV-001
RP-3S
RP-H-V_VL_VS
RP-Q2B/C_Q3B/C
RP-H
RP-TX
RP-HX
RP-P Photo
"Aquatech Co., Ltd." develops, manufactures and sells the original tube pump "Ring Pump".
With the aim of "contributing to society by creating a flow", we provide Ring Pumps that can be used in a variety of situations using our unique technology.
This website introduces information about Ring Pump and our product lineup.

❊"Ring Pump" is a registered trademark of our company.

New info
Nov. 28, 2024
NEW Product information;
We have added new models to the popular RP-QⅡ/QⅢ series with stepper motor.

• New models using FKM-70 (fluororubber) tube that can be used with special solvents
• New models using TM-50 (olefin-based) tubes with low sorption properties, suitable for
  cell culture applications.
• New models in the RP-QⅡF/QⅢF series that use small-diameter tubes ideal for constant-volume
  dispensing of several tens of μL


Nov. 14, 2024
NEW Product information;
The first Aquatech pinch valve "Ultra-low power consumption pinch valve RV-001 series"

• This is an ultra-low power consumption pinch valve. It can be operated with two AA
   batteries (3V). Therefore, almost no heat is generated.
• Compact and lightweight design with dimensions of 30 x 23 x 41.5 mm and weight of
    approximately 33 g.
• The cover is attached and detached with a magnet, making it easy to replace the tube.


Aug. 8, 2024
Our company information has been published in "The Kansai Business Profile" created by the Kansai Bureau of Economy, Trade and Industry.

The Kansai Bureau of Economy, Trade and Industry has created and published "The Kansai
Companies Profile", a catalog designed to promote Kansai's attractive mid-sized and small
companies to overseas missions and companies, fostering new business opportunities.
We are pleased to announce that our company information has been included in this catalog.

• What is "The Kansai Companies Profile"? please click here.
• The Kansai Companies Profile, please click here.


July 23, 2024
Comparison of Tube Inner Wall Wear

Comparison data on tube inner wall wear particles between our Ring Pump and other
manufacturer's roller pump is now available for download. (It is our experimental data)

• For the explanatory article, please click here.
• To download the data, please click here.


June 6, 2024
NEW Product information;
We added the RP-QⅡF/QⅢF models, which feature increased discharge rates, to our RP-QⅡ/Ⅲ series with stepper motors.

• The discharge rates range from 2.6 to 2,600 μL/min.
• The appearance and size are the same as the existing RP-QⅡB/QⅢB and QⅡC/QⅢC models.
• Due to the change in motors, we are also launching the dedicated motor controller RE-C602
   simultaneously.


Mar. 12, 2024
NEW Product information;
Large discharge rate by 3 pump heads;   RP-3S series

• Ring pump with a discharge rate of 9 - 2,500 mL/min using a stepper motor.
• Because 3 pump heads are connected, pulsation of discharge flow can be reduced.
• Three types of liquids can be delivered at the same time by using separate tubes.


Dec. 26, 2023
NEW Product information;
Pump head replacement type, capable of discharge rate up to 10 mL/min;   RP-H series

• Pump drive motors can be selected from a brushed DC motor, a brushless DC motor, and
  a stepper motors.
• Pumps using a brushless DC motor and a stepper motor are equipped with a needle roller
  bearing. Therefore they achieved 5,000 hours of continuous operation. (Our experimental value
  using water. Life expectancy is not guaranteed.)
• You can choose from 6 types of tubes depending on your application.


Feb. 1, 2023
Model added to RP-WII series
   Added model RP-WII04F-700Z-DC24V with discharge rate of 700mL/min to RP-WII series.

Dec. 28, 2022
Publish web page for smart phones
   We have released a web page suitable for browsing on smart phones.
   When you access this homepage on your smart phone, it will automatically switch.

Oct. 3, 2022
NEW Product information;
Motor controller RE-C600

 • Stepper motor controller for 1 piece of RP-TX, HX, RP-QⅡB/C, and RP-QⅢB/C series
 • Various pump operation can be controlled by a computer connected to RE-C600.
 • The pump can be stopped at specified number of revolutions, supporting fixed discharge.


Sep. 1, 2022
NEW Product information;
RP-QⅡB/C, QⅢB/C series with stepper motor

The model using a stepper motor has been added to the popular micro pump RP-QⅡ/QⅢ series.
It is possible to control the discharge rate more finely than ever before.


Sep. 1, 2022
NEW Product information;
Motor controller RE-C500/C501

 • Stepper motor controller for RP-HX, RP-TX, RP-QⅡB/C, RP-QⅢB/C series
 • Various pump operation can be controlled by a computer connected to RE-C500.
 • RE-C500 can control 6 pumps individually.
    Furthermore, up to 12 pumps can be controlled by adding one RE-C501.


Sep. 1, 2022
NEW Product information;
Constant discharge pump system; RE-C300-H/HⅡ/M/KⅡ

 • A constant discharge pump system is realized by the pump using a DC motor with an encoder
    and the motor controller RE-C300 that accurately stops the rotation of the motor at an integral
    multiple of one rotation.
 • We offer the following 4 series of pumps.
RP-H···DC24VE, RP-HⅡ···DC24VE, RP-M···DC24VE, RP-KⅡ···D24VE