Features  Internal Mechanism

Stepping Motor Driven Plunger-Type Micro Pumps
Unlike Syringe Pumps, No Longer Required Frequent Replacement of Seals
Unsurpassed Accuracy & Reproducibility in Flow Rates

High precision micro metering with acid/alkaline solution as well as medical reagents

Seven ranges of the flow rates between 27 and 5,600 µL/stroke selected.

OEM Components

96/8-channel Micro Pump OEM Modules

Metering pump for dispensing reagent to micro plates.
One motor is capable of dispensing to 96 positions simultaneously.
The model for dispensing to 8 positions is also available.

Single channel Micro Pump OEM Module

Pippette tips can be directly attached. Easily integrated to manipulator or any other devices thanks to the compact design and light weight.

Internal Mechanism

① INLET or OUTLET PORT 1

② INLET or OUTLET PORT 2

③ PLUNGER

④ PLUNGER SEAL

⑤ PLUNGER GUIDE

⑥ WASHING PORT for PLUNGER SEAL

⑦ BENCHMARK SENSOR

⑧ SHUTTER

⑨ BEARING

⑩ MOTOR COILS

⑪ MOTOR ROTOR

⑫ LEAD SCREW

Operational Principle

When the stepping motor coils ⑩ get excited in a clockwise direction, the internally threaded rotor ⑪ will start to rotate with the lead screw ⑫ moving leftward.
The plunger ③ directly connected with the lead screw ⑫. will discharge the liquid inside the pump head through the outlet port ① or ②.
One or two outlet ports may be selected. When the plunger ③ comes to the discharge completion position, the benchmark sensor ⑦ will detect the shutter ⑧, giving an electric signal.

For intake of liquid, the motor coils ⑩ will need to get excited in a counter-clockwise direction.
The rotor ⑪ will start to reverse. With the lead screw ⑫ and the plunger ③ moving rightward, the liquid will enter the inlet port ① or ②.
The discharge and suction volumes can be controlled by means of the pulse number of motor.