Applications
Where this equipment is used
- Condenser cooling for rotary evaporators
- Jacket cooling for glass reactors during winterization
- Cold trap cooling for vacuum systems
- Crystallization temperature control
Products
Recirculating Chillers
Low Temperature Recirculating Chiller - DLSB Series
Recirculating chillers provide the cold side of rotary evaporators, glass reactors and molecular distillation systems. The DLSB series delivers stable cooling from −30 °C down to −120 °C, with 10 L/min to 180 L/min flow rates and ±1 °C precision. Cannabis extractors typically pair DLSB-30/80 or DLSB-50/80 with their 50L rotovaps for deep winterization. Plate heat exchange plus a small reservoir delivers rapid cool-down; hermetic compressor design improves long-term reliability.
Industries
Typical laboratory environments
- Cannabis and CBD processors
- Chemistry and materials labs
- Pharmaceutical R&D
- Biotechnology
Catalog Highlights
What the product catalog adds
These points are drawn from the supplied LM product catalog and turned into buyer-facing detail.Plate heat exchange and compact liquid reservoir design are highlighted for fast cooldown.
Catalog includes closed chillers down to -120 °C and explosion-proof recirculating chiller variants.
Optional temperature ranges, voltage customization and large-capacity designs are part of the product story.
Buying Guidance
How to specify the right system
Premium instrumentation decisions should account for methods, workflow and lifecycle service before the purchase order is issued.Sizing & throughput
Match cooling capacity to the evaporation rate — under-sizing the chiller is the #1 cause of reduced recovery throughput.
Compliance & hazloc
240V 60Hz single-phase is available on most DLSB models up to −80 °C; larger and three-phase versions use 240V/60Hz three-phase.
Power & utilities
For −120 °C applications (DLSB-500/40), plan adequate room ventilation and a dedicated circuit.
Technical Specifications
Catalog models & directional pricing
Specific model sizes, wetted materials and factory-direct USD ex-works pricing from our Zhengzhou manufacturing base. All models support custom voltage configurations.| Model | Reservoir | Min Temp | Cooling Capacity (W) | Max Flow | Max Lift | Power Supply | Price (USD)* |
|---|---|---|---|---|---|---|---|
| DLSB-10/30 | 10L | -30 °C | 2010–650 W | 15 L/min | 8 m | 240V 60Hz Single-Phase | $1,800 |
| DLSB-10/40 | 10L | -40 °C | 2800–550 W | 15 L/min | 8 m | 240V 60Hz Single-Phase | $2,200 |
| DLSB-20/30 | 20L | -30 °C | 2800–600 W | 15 L/min | 9.7 m | 240V 60Hz Single-Phase | $2,200 |
| DLSB-30/30 | 30L | -30 °C | 4600–600 W | 35 L/min | 12 m | 240V 60Hz Single-Phase | $3,200 |
| DLSB-30/40 | 30L | -40 °C | 7500–900 W | 35 L/min | 12 m | 240V 60Hz Single-Phase | $3,450 |
| DLSB-30/80 | 30L | -80 °C | 8760–950 W | 35 L/min | 12 m | 240V 60Hz Single-Phase | $6,500 |
| DLSG-50/30 | 50L | -30 °C | 10500–500 W | 60 L/min | 6 m | 240V 60Hz Single-Phase | $3,500 |
| DLSB-50/80 | 50L | -80 °C | 15750–900 W | 60 L/min | 6 m | 240V/60Hz Three-Phase | $10,500 |
| DLSB-100/40 | 100L | -40 °C | 14000–2800 W | 60 L/min | 6 m | 240V/60Hz Three-Phase | $9,850 |
| DLSB-200/40 | 200L | -40 °C | 22000–3500 W | 60 L/min | 6 m | 240V/60Hz Three-Phase | $13,500 (est.) |
| DLSB-200/80 | 200L | -80 °C | 22000–3500 W | 60 L/min | 6 m | 240V/60Hz Three-Phase | $14,200 (est.) |
| DLSB-300/40 | 300L | -40 °C | 28000–4800 W | 180 L/min | 10 m | 240V/60Hz Three-Phase | $15,100 (est.) |
| DLSB-300/80 | 300L | -80 °C | 29000–5000 W | 180 L/min | 15 m | 240V/60Hz Three-Phase | $20,500 (est.) |
| DLSB-500/40 | 500L | -40 °C | 12980–2562 W | 180 L/min | 15 m | 240V/60Hz Three-Phase | $27,500 (est.) |
*Directional ex-works USD pricing. Final quotes depend on custom voltage options, auxiliary matched heaters/chillers, chemical compatibility requirements, and actual sea/air freight to your destination. All components meet CE standards, with ETL/UL recognized components selectable for North American B2B installations.
Common Configurations
Typical model and option direction
- DLSB-30/80 deep winterization (-80 °C)
- DLSB-50/80 high capacity (-80 °C)
- Closed -120 °C systems for demanding low-temp work
Quote Inputs
What to send before we quote
- Target minimum temperature
- Heat load
- Flow requirement
- Voltage / phase
- Indoor ventilation constraints
Buyer Notes
What usually matters during internal approval
These points help procurement and engineering move from browsing to approval without the usual back-and-forth.We confirm single-phase vs three-phase availability up front, so installation isn't held up after delivery.
For solvent recovery applications, quote the chiller against evaporation rate, not just reactor size.
Explosion-proof variants should be described carefully with control and motor scope, not as a generic label only.
Request a quote with process, utility and destination data.
Include the target application, solvent or media, batch size, required temperature or vacuum range, facility power, hazardous-area requirement and destination ZIP code.