OK Environmental Systems
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| Brand | OK Environmental Systems |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | OK-STH-12.000000m² |
| Temperature Range Options | 0°C / −20°C / −40°C / −60°C / −70°C |
| Temperature Uniformity | ±3°C |
| Temperature Control Stability | ±2°C |
| Heating Rate | 1.0–4.0°C/min |
| Internal Dimensions | Custom-engineered per client specification (floor area ≥12.0 m²) |
| Brand | OK Environmental Systems |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | OEM/ODM Manufacturer |
| Country of Origin | China |
| Model | OK-STH-12m² |
| Internal Dimensions (W×D×H) | 2000 × 3000 × 2000 mm |
| Temperature Range | −40 °C to +150 °C |
| Temperature Uniformity | ±2 °C |
| Temperature Control Accuracy | ±1 °C |
| Ramp Rate | +3 °C/min (heating), −1 °C/min (cooling) |
| Humidity Range | 20–98 %RH (standard configuration) |
| Humidity Uniformity | ±3 %RH |
| Refrigeration System | Dual-stage cascade refrigeration |
| Compressor | Tecumseh (France) hermetic scroll compressor |
| Controller | YX-880 programmable touchscreen PID controller with data logging option |
| Construction | Exterior – pre-painted galvanized steel |
| Safety Protections | Over-temperature cutoff, phase failure protection, water shortage alarm, ground fault circuit interrupter (GFCI), compressor high-pressure shutdown |
| Brand | OK Environmental Systems |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | OEM/ODM Manufacturer |
| Product Category | Domestic |
| Model | OK-STH-8.223m² |
| Internal Dimensions (W×D×H) | 2000 × 2000 × 2000 mm |
| Temperature Range Options | A: 0°C to +85°C |
| B | −20°C to +85°C |
| C | −40°C to +85°C |
| D | −60°C to +85°C |
| E | −70°C to +85°C |
| Temperature Uniformity | ±3°C (at steady state, per IEC 60068-3-5) |
| Temperature Control Stability | ±1°C |
| Heating Rate | 1.0–4.0°C/min (load-dependent, no internal heat load) |
| Brand | OK Environmental Systems |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | OEM/ODM Producer |
| Model | OK-STH-8.22m² |
| Internal Dimensions (W×D×H) | 2000 × 2000 × 2000 mm |
| Temperature Range Options | A: 0°C to +150°C |
| B | −20°C to +150°C |
| C | −40°C to +150°C |
| D | −60°C to +150°C |
| E | −70°C to +150°C |
| Temperature Uniformity | ±3°C (at steady state, per ASTM E145 Class I) |
| Temperature Control Stability | ±1°C |
| Heating Rate | 1.0–4.0°C/min (typical, no-load, mid-chamber) |
| Brand | OK Environmental Systems |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | OEM/ODM Manufacturer |
| Country of Origin | China |
| Model | OK-STH-8.6m² |
| Internal Dimensions (W×D×H) | 2000 × 2000 × 2000 mm |
| Temperature Range Options | A: 0°C to +85°C |
| B | −20°C to +85°C |
| C | −40°C to +85°C |
| D | −60°C to +85°C |
| E | −70°C to +85°C |
| Temperature Uniformity | ±3°C |
| Temperature Control Accuracy | ±1°C |
| Heating Rate | 1.0–4.0°C/min |
| Humidity Range | 20–98% RH |
| Humidity Control Accuracy | ±3% RH |
| Construction | Double-skinned color-coated steel panels with high-density polyurethane (PU) insulation (≥150 mm thickness) |
| Door | Electrically heated observation door with safety interlock and anti-frost function |
| Refrigeration System | Cascade refrigeration (dual-stage compressors), optional LN₂ assist for accelerated cooling |
| Air Circulation | High-volume centrifugal fans with optimized ductwork for uniform airflow distribution |
| Control System | Industrial-grade PLC-based controller with 10.4″ touchscreen HMI, programmable multi-segment profiles, real-time data logging, USB export, Ethernet remote access, and audit trail capability |
| Brand | OK Environmental Systems |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Product Origin | Domestic (China) |
| Model | OK-STH-88 |
| Internal Volume | Custom-engineered (starting from 1 m³, scalable to ≥100 m³) |
| Temperature Range Options | A: 0°C to +85°C |
| B | −20°C to +85°C |
| C | −40°C to +85°C |
| D | −60°C to +85°C |
| E | −70°C to +85°C |
| Temperature Uniformity | ±3°C (per IEC 60068-3-5 & ASTM E145) |
| Temperature Control Stability | ±1°C |
| Heating Rate | 1.0–4.0°C/min (linear, load-dependent) |
| Humidity Range | 20–98% RH (at applicable temperature bands) |
| Humidity Control Accuracy | ±3% RH |
| Refrigeration System | Dual-stage cascade refrigeration (R404A/R23 or R507A, optional LN₂ assist for rapid cooldown) |
| Air Circulation | High-capacity centrifugal blower with optimized ducted airflow and multi-point return design |
| Structural Insulation | 100–200 mm thick PU/rockwool sandwich panels (thermal conductivity ≤0.022 W/m·K) |
| Door | Reinforced insulated swing door with double-glazed observation window, anti-frost heater, safety interlock, and emergency egress release |
| Electrical Interface | 3-phase 380 VAC ±10%, 50 Hz (customizable for 400 V / 60 Hz) |
| Compliance | Designed per ISO 17025 laboratory infrastructure requirements |
| Brand | OK Environmental Systems |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Product Origin | Domestic (China) |
| Model | OK-STH-8m2 |
| Internal Dimensions (W×D×H) | 2000 × 2000 × 2000 mm |
| Temperature Range Options | A: 0°C to +85°C |
| B | −20°C to +85°C |
| C | −40°C to +85°C |
| D | −60°C to +85°C |
| E | −70°C to +85°C |
| Temperature Uniformity | ±3°C |
| Temperature Control Accuracy | ±1°C |
| Heating Rate | 1.0–4.0°C/min |
| Humidity Range | 20–98% RH (at applicable temperature bands) |
| Humidity Control Accuracy | ±3% RH |
| Refrigeration System | Dual-stage cascade refrigeration with parallel compressors |
| Air Circulation | High-capacity centrifugal fans with optimized ductwork for uniform airflow distribution |
| Structural Insulation | 150 mm thick polyurethane (PU) insulated sandwich panels (double-skin galvanized steel) |
| Door | Reinforced airtight walk-in door with anti-frost heating, observation window, and safety interlock |