Heating cooling system HR-70

Heating Cooling System HR-70

I've worked with countless thermal control units in my years running lab operations, and the HR-70 has become my go-to recommendation for colleagues who need serious temperature precision. The -25°C to 200°C range covers practically every thermal protocol I've encountered, from cryogenic sample prep to high-temperature synthesis work.

Precision Climate Control for Advanced Laboratory Applications

What really sets the HR-70 apart is that ±0.5°C accuracy across the entire temperature spectrum. I've paired it with our Glass reactor GRL-20CE for exothermic reactions where temperature runaway would ruin expensive reagents, and the stability is remarkable. The 3-phase 380V power supply delivers 7kW heating capacity and 28,000 BTU/h cooling, which means you're not waiting around for temperature equilibration between experimental runs.

Dual Heating and Cooling Functionality

• Seamless mode switching without manual intervention or system downtime
• R449A refrigerant provides efficient cooling with reduced environmental impact compared to older systems
• Works beautifully alongside Rotary evaporator RE-2000A for solvent recovery operations requiring precise bath temperature control
• The 205 kg weight means it stays put during operation, unlike lighter units that vibrate during compressor cycling

HR-70 Temperature Range Capabilities

I regularly use mine for crystallization studies at -20°C, then switch to reflux conditions at 180°C the same afternoon. Compare this to the Heater UC-5020, which only handles the upper temperature range—you'd need two separate units to match what the HR-70 does alone. The system pairs exceptionally well with Glass Vacuum Filter CLZZ-20 and Glass Vacuum Filter CLZZ-30 for temperature-controlled filtration of thermally sensitive compounds. Pro tip:pre-cool your glassware to -15°C before filtering heat-sensitive organometallics—game changer for yield optimization.

Optimized Thermal Management Solutions

The 550×680×1650 mm footprint fits under standard lab benches, and that quiet operation means you can actually concentrate while it's running. I've noticed the noise level stays remarkably low even during aggressive cooling cycles. Maintenance is straightforward—check refrigerant levels quarterly and clean the condenser coils monthly if you're in a dusty environment. The robust construction handles the thermal cycling abuse we put it through daily without the pump failures I've experienced with cheaper alternatives.