The OWP-BL43-440T electric coolant pump stands out with its closed impeller construction, which boosts operational efficiency and keeps noise levels below 60dB, ideal for noise-sensitive laser equipment environments. Leveraging permanent magnet brushless technology, it boasts a space-saving design and low power consumption, fitting seamlessly into compact laser setups without compromising performance. Its shaft system is crafted from ultra-durable friction pair materials, combined with a centrifugal & shielded structure, ensuring a service life of over 20000 hours for long-term reliability. PWM duty cycle speed regulation enables precise flow control, adapting to the varying heat dissipation needs of laser pump sources. Comprehensive protection mechanisms—including reverse connection, overvoltage, overcurrent, dry running, and overtemperature protection—effectively prevent pump damage and ensure stable operation. With an IP68 rating, the pump offers superior dustproof and waterproof performance, capable of withstanding harsh working conditions in laser equipment applications.

The OWP-BL43-440T electric coolant pump is specifically engineered to address the critical cooling needs of fiber laser pump sources in the laser equipment industry. Fiber laser pump sources are core components that generate intense light energy, producing substantial heat during operation—excessive temperatures can degrade pump source efficiency, shorten lifespan, or even cause sudden failures, directly impacting laser equipment performance. This 400W rated coolant pump delivers a rated flow rate of 3000L/H at 20M head and a maximum flow rate of 5000L/H with a 23M max lift, ensuring efficient and consistent coolant circulation to rapidly dissipate heat from fiber laser pump sources. Its compatibility with 50-60% glycol + water mixtures, dielectric oil, and electronic fluorinated solutions aligns with the cooling medium requirements of most fiber laser systems, enabling hassle-free integration. The wide medium temperature range (-40℃ to 85℃) allows reliable operation in diverse working environments, from industrial workshops to precision manufacturing facilities. The 25mm outlet diameter ensures sufficient coolant delivery, while PWM speed regulation lets users adjust flow rates to match the pump source’s heat output during different operating modes—from standby to high-power laser emission. The high/low-level fault feedback signal provides real-time operational status updates, facilitating prompt maintenance and minimizing downtime for laser equipment. With IP68 protection and robust safety features, the OWP-BL43-440T guarantees stable, long-lasting performance, making it the optimal cooling solution to enhance the efficiency, reliability, and service life of fiber laser pump sources in the laser equipment industry.

PWM Speed Control Mode

Performance Curve

Dimensional Drawings