Julabo Recirculating Coolers SemiChill

Julabo SemiChill Circulating Cooler

The Julabo SemiChill circulating cooler is a versatile temperature control solution for demanding laboratory and industrial environments. It impresses with its modular configurability and exceptional precision, making it particularly suitable for processes with high requirements for temperature stability and reliability. Compared to conventional cooling devices, this model impresses with its high cooling capacity, robust construction and user-friendliness, and can be tailored to individual requirements in research, development and production. Powerful and flexible temperature control for industry and laboratories

With its combination of robust industrial design and user-friendly technology, this device is ideal for reliable temperature control in a wide range of applications. The sturdy steel construction protects the high-quality interior and ensures durability in demanding continuous operation. Thanks to its easy mobility - made possible by steerable castors - the recirculating chiller can be flexibly positioned at the desired location.

The most important technical features at a glance

• Dimensions (W x D x H): 49 cm x 62 cm x 105 cm
• Weight: 123 kg
• Operating temperature range: +5 to +35 °C (standard); optional -20 to +80 °C
• Temperature stability: ±0.1 °C
• Cooling capacity: 2.5 kW at 20 °C; 1.5 kW at 0 °C; 0.9 kW at -10 °C (with ethanol)
• Pump capacity: 33 l/min; delivery pressure up to 3.5 bar
• Filling volume: 21-33 litres
• Refrigerant: R404A

Other features include a modern, bright LED display with a resolution of 0.1 °C, a user-friendly input field and an easily accessible on/off button. The dust collection grilles facilitate maintenance and cleaning. Interfaces such as the Pt100 connection and the RS232 interface enable external temperature monitoring and integration into existing process control systems.

Modular design & specific adaptations

The modular design of the SemiChill series allows for a wide range of configurations, enabling special customer requirements such as extended temperature ranges, differentiated pump capacities or specific communication interfaces to be implemented. The devices also support various process fluids, in particular ethanol and water-based cooling media, which is essential in many laboratory applications.

Automation and safety

Precise temperature control is ensured by PID control in combination with ATC3 3-point calibration, as required by the latest industry standards. The industrial main switch, emergency stop and comprehensive warning indicators ensure continuous safe operation even under extreme conditions. Water-cooled, very low-noise versions are available as an option, which emit minimal waste heat into the room.

Certifications and standards

This device complies with international safety and quality standards and is designed for industrial use. The manufactured devices comply with applicable CE directives, workplace-relevant safety standards and are manufactured in accordance with ISO quality management.

Typical areas of application in laboratories and production

The SemiChill series is primarily used in the following areas:

• Reactor temperature control: Precise adjustment and stabilisation of the temperature in synthesis and bioreactors for chemical and pharmaceutical processes. Ethanol or glycol are typically used here.
• Cooling of distillation and extraction plants: Ensuring reproducible distillation results through controlled temperature control, e.g. in the petrochemical industry.
• Temperature control in semiconductor manufacturing: Cooling of sensitive equipment and substrates to avoid thermal stress and improve the quality of wafers.
• Machine and tool cooling: Precision temperature control for CNC machines, injection moulding or die casting in the production of metal and plastic parts.

Other common applications include cooling circuits in analytics (e.g. in mass spectrometers, scanning electron microscopes) and the provision of cold water circuits in photochemical experiments.

FAQs about the JULABO SemiChill recirculating chiller

How is the recirculating chiller filled and emptied?

• Filling is easy thanks to an easily accessible filling opening. A drain cock is available for emptying, which ensures safe and complete drainage of process fluids.

What safety features are integrated?

• Thanks to an industrial power switch, integrated emergency stop switch, warning indicators and automatic fault management, safe continuous operation is guaranteed even in sensitive applications.

Can the recirculating cooler be operated quietly?

• The water-cooled models in the SemiChill series (type suffix "W") in particular operate extremely quietly and also emit virtually no waste heat into the room in which they are installed.

Does the device support external controls?

• The chiller can be integrated into automated process control systems via the Pt100 temperature sensor and the RS232 interface, enabling remote control and monitoring.

Summary

The Julabo recirculating chiller from the SemiChill series sets standards in terms of modularity, precision and reliability in laboratory and industrial temperature control. Individually customisable, safe in continuous operation and with extensive interfaces, it offers future-proof solutions for the most demanding applications, from semiconductor production to large-scale reactor and machine cooling.