Variable Cooling and Heating System,8000

Provides active temperature regulation during high-throughput mechanical lysis workflows. The unit from QIAGEN accepts standard 2 mL screw-cap tubes and adapter sets used with bead-mill homogenizers, actively cooling or warming samples throughout disruption to protect heat-labile biomolecules such as RNA and proteins from degradation in prolonged grinding runs. Operators program set points across a working window from approximately -10°C up to +100°C, with cooling delivered through an external chiller circulator (or dry-ice/ice-water bath) and resistance heating built into the block. The system is particularly useful for tough tissues, plant material, and microbial samples where pre-cooling or brief heating phases improve lysis efficiency without compromising downstream nucleic acid or protein purification yields. Each run uses dry-ice or ice-water cooling reservoirs, and the device pairs with multi-tube adapter blocks for batch processing across a full plate in a single cycle. Installation requires a stable bench surface, 100–240 V mains power, and clearance for the integrated chiller hose. Routine maintenance involves wiping the block with 70% ethanol after each use, descaling the circulation loop quarterly, and verifying block temperature with a calibrated probe at least once per month. The packaged console ships in a single carton containing the main unit, power cord, cooling-hose assembly, and a printed quick-start guide.