Built smart, cascade design
The BLAST 60/45 is the most compact unit in the BLAST lineup and the only model built around Perma Cool’s cascade-style architecture, combining strong low-temperature performance with long-term serviceability.
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Ethanol chilling systems
Perma Cool / Dual-stage cascade
BLAST™ 60/45Ethanol Chiller
Chill 60 gallons of ethanol from room temperature to −40 °C in 45 minutes.
60 galEthanol capacity
−40 °CChilling target
45 minRoom-temperature pull-down
30 galCentrifuge pairing
Production Fit
Compact capacity with a real extraction workflow behind it.
Production-ready workflow
It replaces consumables and slower legacy chilling methods with a production-ready system sized for the ideal 30-gallon centrifuge workflow.
workflow explained →Fast return on value
For many operators, the 60/45 hits the sweet spot, real production capacity, smarter workflow, and a system that can often pay for itself within the first few months of operation.
The equipment
One system.
Four working parts.
Process-side chilling, wall-mounted heat exchange and controls, and two outdoor condensers.
01 At the process
Ethanol chilling platform
The chilling tank, circulation pump, and plate heat exchanger bring storage and heat transfer together in one process-side assembly.
- Vacuum-jacketed tank
- Level sight glass
- Temperature sensor
- Ethanol outlet ports
02 Between refrigeration stages
FluxBox
The FluxBox is the wall-mounted heat exchanger on the BLAST 60/45’s cascade side. It allows the secondary refrigeration circuit to cool the primary circuit, supporting the system’s two-stage, low-temperature performance.
03 System control
PLC control system
Centralized monitoring, logic, and control give operators visibility into the chilling process. PLC/HMI feedback helps operators manage process performance and consistent operation, with compressor protection logic built into the system.
04 Outdoors
Two 6 HP condensers
Two separate six-horsepower condenser units support the primary and cascade refrigeration stages.
View the original BLAST 60/45 system illustration
How cascade works
A chiller for the chiller.
The primary circuit directly chills your ethanol. The cascade circuit cools the primary circuit so the system can reach lower temperatures with efficient, consistent pull-down.
Two smaller, common-sized refrigeration stages replace one oversized unit. That architecture supports low-temperature performance while making parts easier to source and the system simpler to maintain in production.
Why that matters in the field
Better low-temperature performance
Cascade refrigeration supports colder operation than a comparable single-stage setup, with the secondary stage cooling the primary circuit through the FluxBox.
Common parts, easier service
Standard component sizing simplifies diagnosis, repair, and parts sourcing, helping reduce service costs without relying on rare, oversized hardware.
Built for long-term maintenance
Repairable, common-sized components make the machine easier to maintain over its working life and avoid dependence on exotic, hard-to-source parts.
Cascade Refrigeration Design
Dual-stage architecture designed around lower temperatures and better serviceability.
The BLAST 60/45 is built around Perma Cool’s dual-stage cascade architecture, using two smaller, more common-sized refrigeration stages instead of one oversized unit. The primary refrigeration circuit directly chills the ethanol, while the cascade refrigeration circuit cools the primary circuit so the system can reach lower temperatures with efficient, consistent pull-down.
That two-stage design gives the BLAST 60/45 strong low-temperature performance while keeping the system built around more serviceable, widely available components. The result is easier parts sourcing, lower service cost, and a machine that is simpler to maintain in real production use.
Centrifuge pairing
A cold reserve
for the next cycle.
A 60-gallon tank pairs with a 30-gallon centrifuge. Returning ethanol mixes into a reserve of already-cold ethanol, limiting the temperature rise and supporting re-chilling between extraction cycles.
The tank-to-centrifuge ratio is about 2:1. With more cold ethanol in reserve, the tank sees a smaller temperature shift, recovers to −40 °C faster, and is ready for the next extraction cycle sooner.
Read the workflow breakdown article
From ACP-30 to BLAST 60/45
More reserve for repeat cycles.
Perma Cool’s legacy ACP-30 put more than 200 units into the field and demonstrated the value of dedicated ethanol pre-chilling. At roughly 40 gallons, it was sized for basic single-pass centrifuge support.
The BLAST 60/45 expands that reserve to 60 gallons, supporting a 30-gallon centrifuge through repeated extraction and re-chill cycles.
Extraction → Re-chill → Repeat
Keep the ethanol in the workflow.
Returning ethanol mixes into the already-cold reserve instead of resetting the whole tank.
Repeated extraction and re-chill cycles continue until the ethanol reaches roughly 2 to 3 lb of material per gallon, before moving to filtration and evaporation.
BLAST 60/45
The specifications.
Temperature performance depends on system configuration and facility conditions. Final specifications are subject to engineering review.
- Model
- BLAST 60/45
- Ethanol capacity
- 60 gallons
- Pull-down target
- Room temperature to −40 °C in 45 minutes
- Flash chilling average
- 1.33 GPM
- Centrifuge pairing
- 30 gallons
- Refrigeration
- Dual-stage cascade · direct refrigerant
- Condensers
- 2 × 6 HP
- Integration
- HVAC condenser integration
- Controls
- PLC/HMI with compressor protection logic
ROI / Replacement
Electric chilling.
Less reliance on consumables.
A dedicated chilling system for operators moving away from consumables, slower legacy methods, or improvised cold-ethanol workflows.
Replace recurring consumable spend with a serviceable system.
The BLAST 60/45 provides dedicated electric chilling for repeatable low-temperature performance, faster recovery between cycles, and simpler day-to-day operation.
- Reduce dependence on recurring consumables.
- Support faster re-chilling and repeat-cycle extraction.
- Use serviceable, common-sized components to help lower long-term ownership cost.
For operators replacing legacy cooling, the goal is lower operating cost, better throughput, and a more reliable production workflow.
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Compare chilling methods, reduce LN2 dependency, and plan system fit with practical guides built for extraction operators.
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Direct refrigerant vs. LN2 Chiller maintenance guidePlan your BLAST 60/45
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to your production.
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