RV-001
RP-3S
RP-H-V_VL_VS
RP-Q2B/C_Q3B/C
RP-H
RP-TX
RP-HX
We are "Aquatech Co., Ltd." Our company develops, manufactures and sells the original tube pump "Ring Pump".
With our unique technology, we provide pumps that are useful in a variety of situations.

★"Ring Pump" is a registered trademark of Aquatech.

New info
Dec. 11, 2024
Notice of New Year holiday
  Thank you very much for your continued patronage. Our company will be closed on the following dates during the year-end and New Year holidays.
  [Closure period]
December 28th (Sat), 2024
- January 5th (Sun), 2025
  Please note that all inquiries received via email or fax during this closure period will be sequentially responded to from January 6th (Mon), 2025 onwards.
  We apologize for any inconvenience this may cause and appreciate your understanding.
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 (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
  announcethat our company information
  has been included in this catalog.

• What is "The Kansai Companies
   Profile"?
• The Kansai Companies Profile

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.

Jun. 12, 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;
RP-H series
Pump head replacement type, capable of discharge rate up to 10 mL/min;
  • 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;
Stepper 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