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Pneumatic drive pumps

A resist-saving photoresist dispensing systems

Photoresist dispensing system PDS series

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Pneumatic drive tubephragm pumps PDS-105H
PDS-105H

Pneumatic drive tubephragm pumps PDS-105V
PDS-105V

Substantial saving of resist
The use of a high-torque stepper motor as the drive source results in a consistent discharge volume, unimpeded by filter clogging or viscosity change. A repeatable accuracy (0.3%) of discharge is maintained.
・ Repeated precision: ±0.3% (F.S.)
・ Linearity: ±0.5% (F.S.)
・ Resolution: 0.01 ml or below

Contamination free
The pump portion is of tubephragm structure wetted internals are flat and smooth, with a small dead volume. Because the system hardly has a place that allows liquid resist to dwell, production of particles is prevented.

Usable for a variety of coating processes
Since the discharge velocity can be changed freely in a shot, the system is capable of dealing with a variety of resist coating processes including application of a very small amount or in a very short period of time.


Pump controller PDS-210

Pump controller PDS-210
A high performance controller. One PDS-210 controller can control a maximum of three PDS pumps. Up to three recipes can be programmed.

Programmable controller PDS-310

Programmable controller PDS-310
This controller is used as an interface with the PDS-230 and is capable of controlling a maximum of two PDS pumps.

Pulse controller PDS-230

Pulse controller PDS-230
This controller operates the PDS pump by generating output pulses corresponding to the length of a signal from the equipment.

Automatic vent unit PDS-410

Automatic vent unit PDS-410
An air elimination unit comprised of a vacuum-purge system. Air in the system can be extracted in a short period of time without any action required by the operator.

Pump specifications
Model PDS-105H (Horizontal) / PDS-105V (Vertical)
Max. discharge capacity 5 mL/shot *
Max. discharge pressure 0.15 MPa
Discharge speed 0.1 to 4.0 mL/sec
Suction speed 0.1 to 3.0 mL/sec
Main materials PFA, PTFE, EPDM
Liquid temp. range 15 to 25 C deg.
Power supply DC24 V
*The 10 ml/shot type (PDS-110) is also available. Please contact us for details.
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