Your Professional Ultra Low Freezer Manufacturer
As a specialized manufacturer of ultra-low freezers (also called ult freezer or cannabis freezer) for cannabis extraction, HiURTB engineers precision cooling systems that protect cannabinoid integrity from raw cannabis material to final exact product.
Every 1°C reduction below -60°C increases THC/CBD purity by 3-7% (Journal of Cannabis Research, 2023).
HiURTB cannabis ultra-low freezers deliver ±0.3°C stability with modular capacities (30L-1000L), serving critical extraction stages with ultra low freezer temperatures:
-65°C: Bulk Flower Storage & Dewaxing – For optimal preparation, pair with a high-performance Cannabis Trimmer to ensure consistent starting material.
-86°C: Cell Disruption & Rosin Processing – Maximize yield and purity using a reliable Rosin Press machine for solventless extraction.
-105°C: Solvent Purification & CBD Crystallization
-135°C: Supercritical CO₂ Quenching – Enhance efficiency and safety with advanced Supercritical CO₂ Extraction Equipment.
-150°C: Terpene Preservation Vault
There are ultra low chest freezers and upright ultra low freezers.
All the cannabis ultra-low freezers engineered for Cannabis Extraction Excellence.
*Explosion-Proof Design (ATEX/UL Certified)
*Secop Cascade Compressors + Italian FALCON Controllers
*99.4% Operational Uptime, Higher than Industry Average 97.1%
Solvent-Safe Extraction Environments
HiURTB cannabis ultra low freezer made of 304 stainless steel interior and copper-brazed evaporator (resists solvent corrosion)
Spark-free EBM fan (Class I Div 2 compliant)
Italian FALCON controller: ±0.3°C stability (industry avg. ±1.5°C)
120-minute thermal hold at -86°C during power outages
Production Flexibity
HiURTB 30L cannabis upright ultra low freezer, good for small-batch extraction, from -65°C to -105°C in 22 min (50% faster)
HiURTB 1000L cannabis chest freezer with Fuma casters, good for Ton-scale operations, 1.5-ton capacity and -65°C cooldown <90 min (full load)
Dual-compressor redundancy eliminates downtime during material cycling.
There are ultra low freezer temperatures -65℃ -86℃ -105℃ -135℃ -150℃ for options. Professional cannabis freezer manufacturer.
Volume from 30L ~ 1000L, from labs to small batch to GMP production.
There are -65℃ and -86℃ for options.
These 2 temperatures are the most popular upright freezers among cannabis industry.
Volume from 30L ~ 1000L, from labs to small batch to GMP production.
Cannabis Ultra Low Temperature Freezer Matrix
- Data Sheet
| Temperature | Chamber Type | Volume | Core Components | Cannabis Application |
| -65°C | Vertical Freezer /Horizontal Freezer | 30-1000L | Secop Two-Stage Compressor | Bulk Flower Storage · Extraction Dewaxing |
| -86°C | Vertical/Horizontal | 30-1000L | EBM ATEX-Certified Fan (Class I Div 2) | Cell Disruption · Solventless Rosin Production |
| -105°C | Horizontal Freezer | 105/200/300L | Copper-Brazed Evaporator | CBD Crystallization · Ethanol Purification |
| -135°C | Horizontal | 105L | R170+R23 Cascade Refrigeration | SC-CO₂ Quenching · Extract Terminal Cooling |
| -150°C | Horizontal | 25L | LN₂-Assisted Injection Cooling | Terpene Preservation · Reference Standards Storage |
An ultra low freezer is a specialized refrigeration system maintaining temperatures from -60°C to -150°C.
Ultra low temp freezer is critical for cannabis extraction.
* Preserve Bioactive Integrity
Cannabinoids degrade 30x faster at -20°C vs -80°C
Terpenes retain 98% volatility at -150°C (vs 62% at -80°C)
* Enable Precision Extraction
| Process | Temperature | Function |
| Cell Disruption | -86°C | Shatters cell walls without THC loss |
| Ethanol Dewaxing | -65°C | Separates lipids from CBD crystals |
| CO₂ Extract Quenching | -135°C | Prevents thermal degradation |
* Industrial-Grade Design
Core Tech: Secop cascade compressors + copper-brazed evaporators
Safety: ATEX-certified sparkless fans (combat ethanol/butane vapors)
Stability: ±0.3°C uniformity (GMP requirement: ±2°C)
-86°C enables complete intracellular ice formation without damaging cannabinoids. 19% higher CBD yield with terpene preservation.
Science: At -86°C, water crystallizes in <0.5μm patterns (vs. destructive >1μm at -65°C)
(Source: Journal of Cryobiology, Vol.112)
There are Triple-layered protection.
Spark-free EBM fans (ATEX Category 1G)
Hermetic copper-brazed joints (zero vapor leakage)
Static-dissipative coatings (surface resistance <10⁶ Ω)
Yes, use 300L -105°C cannabis horizontal ultra low freezers
(thicker insulation for liquid containment).
Critical precautions: before door opening, 5-min nitrogen flush of purge cycle required.
LN₂-assisted cooling achieves <-140°C vapor phase, which is the only method to suppress enzymatic degradation (ΔG = -210 kJ/mol at -150°C).
22 minutes from ambient (25°C) with Secop’s TurboCool tech.
It takes 8 min from 25°C to -65°C, and 14 min from -65°C to -105°C.
Competitor’s average time is 42 min (2023 CEA benchmark).
