Kamoer KPAS300 is a compact 24V stepper motor driven micro peristaltic pump with a 1–500 ml/min flow range, tool-free pump head, Luer connectors, and reliable OEM integration for water quality analyzers, water samplers, nutrient dosing systems, and compact fluid transfer equipment.

Kamoer KPAS300 Micro Peristaltic Pump: Compact, Reliable, and Easy to Maintain for OEM Fluid Transfer

In compact fluid handling equipment, the pump is often one of the most critical components. Whether used in a water quality analyzer, automatic water sampler, nutrient dosing system, or aquarium water exchange device, the pump must deliver stable flow, fit into limited installation space, and remain easy to maintain over long-term operation.

The Kamoer KPAS300 micro peristaltic pump is designed for these OEM equipment integration requirements. With a compact structure, 24V stepper motor drive, tool-free pump head design, Luer connectors, and replaceable tubing options, KPAS300 provides a practical fluid transfer solution for equipment manufacturers that need reliability, controllability, and maintenance efficiency.

Designed for OEM Equipment Integration

KPAS300 is not positioned as a desktop laboratory pump. It is a compact peristaltic pump designed to be integrated into equipment as a fluid transfer module.

Its small size and flexible installation options make it suitable for limited internal spaces, while its flow range of 1–500 ml/min allows it to meet the needs of many medium and small flow applications. For equipment manufacturers, this means KPAS300 can be used as a built-in pump for water sampling, sample retention, reagent delivery, nutrient dosing, and other automated liquid handling tasks.

Typical application areas include water quality analyzers, water sampling equipment, nutrient solution dosing systems, aquarium water exchange devices, and compact automated fluid systems.

Stepper Motor Drive for Stable and Controllable Flow

KPAS300 uses a stepper motor drive system, which provides better speed control and flow repeatability compared with basic DC motor solutions. This makes it more suitable for equipment that requires programmed liquid delivery, timed operation, or controlled dosing.

For applications such as automatic sample retention in water samplers, the pump needs to work together with the equipment control system. Stable motor control helps the device achieve more consistent fluid transfer during repeated sampling cycles.

In actual use, the final flow should be calibrated according to tubing size, motor speed, liquid properties, suction height, outlet pressure, and system layout.

Tool-Free Pump Head for Easier Tube Replacement

Peristaltic pump tubing is a consumable part. During long-term use, tubing may gradually fatigue, age, or deform due to repeated compression. Therefore, tube replacement is an important maintenance task for equipment users.

KPAS300 features a tool-free pump head design, making tube replacement faster and more convenient. Users can replace tubing by hand without complex disassembly, helping reduce maintenance time and improve equipment serviceability.

This is especially valuable for water sampling equipment and monitoring devices that may be installed in outdoor or unattended locations. Easier maintenance means less downtime and lower after-sales service pressure for equipment manufacturers.

Pump Head Lock Design for Reliable Operation

For compact peristaltic pumps, quick-release pump heads are useful, but stable locking is equally important—especially when the pump is used in higher-flow or higher-load conditions.

KPAS300 is equipped with a pump head lock design to improve pump head stability during operation. This helps reduce the risk of loosening and supports more reliable long-term operation.

For OEM equipment manufacturers, this design helps balance two important requirements: easy tube maintenance and secure pump head positioning during continuous or repeated operation.

Luer Connectors for Standardized Fluid Connections

Fluid connections inside water sampling equipment, analyzers, and dosing systems need to be stable, standardized, and easy to service. Poor tube connections may lead to leakage, air intake, unstable flow, or maintenance difficulties.

KPAS300 uses Luer connectors, which help provide standardized, convenient, and reliable fluid connections. This makes it easier for equipment manufacturers to integrate the pump into compact fluidic systems and maintain consistent assembly quality during batch production.

Luer connectors also simplify external tube replacement and make the fluid path easier to service in the field.

Perx P60 Tubing Options for Different Flow Requirements

KPAS300 is available with Perx P60 peristaltic pump tubing and supports two standard tubing specifications: P25 and P40. These tubing options allow equipment manufacturers to select the appropriate flow performance according to system requirements.

The pump can also support customized tubing materials depending on liquid compatibility and application conditions. For water sampling, wastewater, chemical dosing, or special liquid transfer applications, tubing compatibility should be confirmed based on the actual medium.

Proper tubing selection is essential for long-term stability, service life, and fluid compatibility.

Key Product Specifications

Kamoer KPAS300 offers a flow range of 1–500 ml/min and operates with a 24V stepper motor. The pump power is 20W, the noise level is no more than 60 dB, and the weight is approximately 450 g. The motor life can reach up to 6,000 hours under specified conditions, while the P tubing life is approximately 800 hours.

The pump body uses engineering plastic components, including PC, PA, POM, PET, and PP materials in different structural parts. These material choices support compact design, durability, and reliable equipment integration.

Application in Water Samplers as a Sample Retention Pump

One of the key application directions for KPAS300 is use as a sample retention pump in water samplers.

In automatic water sampling equipment, the pump is responsible for transferring water samples into retention bottles or downstream fluid paths. The pump must provide stable flow, withstand repeated operation, and remain easy to maintain throughout the equipment lifecycle.

KPAS300 fits this requirement well. Its stepper motor drive supports controlled fluid transfer, the tool-free pump head improves maintenance efficiency, the pump head lock enhances operational reliability, and the Luer connectors make fluid connection more standardized.

For water sampler manufacturers, KPAS300 can help improve the reliability of the sampling module while reducing maintenance complexity.

A Practical Pump Choice for Compact Fluid Systems

For OEM equipment manufacturers, choosing a pump is not only about flow rate. The pump also needs to fit the device structure, match the control system, support convenient maintenance, and remain reliable over long-term use.

Kamoer KPAS300 combines compact size, stable stepper motor control, quick tube replacement, secure pump head locking, standardized Luer connections, and flexible tubing options. These features make it a strong choice for water quality monitoring equipment, water samplers, nutrient dosing devices, aquarium systems, and other compact fluid transfer applications.

Conclusion

The Kamoer KPAS300 micro peristaltic pump is designed for equipment manufacturers that need a reliable, compact, and easy-to-maintain fluid transfer solution.

With a 1–500 ml/min flow range, 24V stepper motor drive, tool-free pump head, pump head lock design, Luer connectors, and customizable tubing options, KPAS300 is well suited for OEM integration in water samplers, water quality analyzers, and other automated fluid handling systems.

For applications that require stable flow, easy tube replacement, reliable connection, and compact installation, Kamoer KPAS300 offers a practical and dependable peristaltic pump solution.

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Kamoer Fluid Tech (Shanghai) Co., Ltd.

pump@kamoer.com