Walk-in Environmental Test Chamber
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| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | OK-STH (Custom Volume) |
| Temperature Range | A: 0°C / B: −20°C / C: −40°C / D: −60°C / E: −70°C |
| Temperature Uniformity | ±3°C |
| Temperature Control Accuracy | ±1°C |
| Heating Rate | 1.0–4.0°C/min |
| Internal Dimensions | Custom-Designed per User Specification (D×W×H) |
| Pricing | USD 11,200 (FOB Guangdong) |
| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Product Origin | Domestic (China) |
| Model | OK-STH-8.8m² |
| 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 |
| Construction | Modular PU-insulated sandwich panels with steel frame, double-sealed walk-in door, integrated air circulation and multi-stage refrigeration system |
| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Product Origin | Domestic |
| Model | OK-STH-8.00m² |
| Internal Dimensions (D×W×H) | 2000 × 2000 × 2000 mm |
| Temperature Ranges | A: 0°C |
| B | −20°C |
| C | −40°C |
| D | −60°C |
| E | −70°C |
| Temperature Uniformity | ±3°C |
| Temperature Control Accuracy | ±1°C |
| Heating Rate | 1.0–4.0°C/min |
| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Product Origin | Domestic (China) |
| Model | OK-STH-12.00100m² |
| Internal Dimensions (D×W×H) | 3000 × 2000 × 2000 mm |
| Temperature Range Options | A: 0°C / B: −20°C / C: −40°C / D: −60°C / E: −70°C |
| Temperature Uniformity | ±3°C |
| Temperature Control Accuracy | ±1°C |
| Heating Rate | 1.0–4.0°C/min |
| Humidity Range | 20–98% RH (standard configuration) |
| Humidity Control Accuracy | ±3% RH (at 25–85°C) |
| Power Supply Integration | Multi-circuit AC/DC distribution cabinet with real-time voltage/current/power monitoring |
| Structural Material | Stainless steel inner chamber and reinforced load-bearing test racks |
| Safety Systems | Internal emergency egress, explosion-proof observation window, smoke detection with automatic exhaust activation |
| Controller | Industrial-grade PLC with 7×24 h continuous operation capability |
| Compliance | Designed to support ISO 16750-4, IEC 60068-2-30, MIL-STD-810H (Method 507.6), and JESD22-A101 for humidity testing |
| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Product Origin | Domestic (China) |
| Model | OK-STH-1 |
| Temperature Range | Selectable Options — A: 0°C, B: −20°C, C: −40°C, D: −60°C, E: −70°C |
| Temperature Uniformity | ±3°C (at steady state, empty chamber) |
| Temperature Control Accuracy | ±1°C |
| Heating Rate | 1.0–4.0°C/min (average, under standard load conditions) |
| Internal Dimensions | Custom-engineered per client specification (D×W×H) |
| Construction | Modular polyurethane insulated panels (100–150 mm thickness), field-assembled |
| Cooling System | Water-cooled multi-compressor refrigeration (scroll or screw compressors) |
| Air Distribution | Multi-zone ducted airflow with CFD-optimized circulation |
| Control System | Programmable multi-segment PID controller with Ethernet-enabled remote monitoring and data logging |
| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Product Origin | Domestic (China) |
| Model | OK-STH-12.0000m² |
| Internal Dimensions (W×D×H) | 2000 × 3000 × 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 |
| Construction | Modular PU-insulated sandwich panels with steel frame, walk-in sealed door with anti-frost heating, integrated air circulation ducting and centrifugal fans |
| Refrigeration System | Cascade refrigeration (dual-stage compressors), evaporator and heater arrays distributed for uniform thermal field |
| Control System | Industrial PLC-based controller with programmable multi-step temperature profiles, real-time data logging, remote monitoring interface, and safety interlocks |
| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Product Origin | Domestic (China) |
| Model | OK-STH-12.0100m² |
| Temperature Range | Selectable 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 (within working volume) |
| Temperature Control Accuracy | ±1°C |
| Heating Rate | 1.0–4.0°C/min (average, under no-load conditions) |
| Working Volume | Custom-engineered per client specification (minimum base footprint: 12.0 m² floor area) |
| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | OK-STH-12.1m² |
| Internal Dimensions (D×W×H) | 3000 × 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 |
| Temperature Control Accuracy | ±1°C |
| Heating Rate | 1.0–4.0°C/min |
| Humidity Range | 20–98% RH (operational range varies with temperature |
| Humidity Control Accuracy | ±3% RH (at 25°C/50% RH reference point) |
| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | OK-STH-12.22m² |
| Internal Dimensions (W×D×H) | 2000 × 3000 × 2000 mm |
| Temperature Range Options | A: 0°C to +100°C |
| B | −20°C to +100°C |
| C | −40°C to +100°C |
| D | −60°C to +100°C |
| E | −70°C to +100°C |
| Temperature Uniformity | ±3°C |
| Temperature Control Accuracy | ±1°C |
| Heating Rate | 1.0–4.0°C/min |
| Humidity Range | 20–98% RH (dependent on temperature) |
| Refrigeration System | Cascade-type with eco-friendly refrigerants (R404A/R23) |
| Control System | Programmable touchscreen controller with Pt100 and capacitive humidity sensors |
| Compliance | Designed to support IEC 60068-2-1, -2, -30 |
| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Product Origin | Domestic (China) |
| Model | OK-STH-12.88m² |
| Internal Dimensions (W×D×H) | 2000 × 3000 × 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) |
| Temperature Control Accuracy | ±1°C |
| Heating Rate | 1.0–4.0°C/min (dependent on setpoint and load) |
| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Product Origin | Domestic (China) |
| Model | OK-STH-13m² |
| Internal Dimensions (D×W×H) | 3000 × 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 |
| Temperature Control Accuracy | ±1°C |
| Heating Rate | 1.0–4.0°C/min |
| Construction Type | Modular Walk-in Chamber with Structural Steel Frame |
| Refrigeration System | Dual-stage Cascade Compressor System (Standard) |
| Air Circulation | High-capacity Centrifugal Blower with Optimized Ductwork |
| Insulation | 150 mm Polyurethane (PU) Core Sandwich Panels (Thermal Conductivity ≤ 0.022 W/m·K) |
| Door | Reinforced Sealed Walk-in Door with Electric Defrost Viewing Window & Safety Interlock |
| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Product Origin | Domestic |
| Model | OK-STH-4.8m² |
| Internal Dimensions (W×H×D) | 1800×1500×1500 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 |
| Temperature Control Accuracy | ±1°C |
| Heating Rate | 1.0–4.0°C/min |
| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | OK-STH-8.0000m² |
| Price | USD 13,800 (FOB Guangdong) |
| Internal Dimensions (D×W×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 |
| Temperature Control Accuracy | ±1°C |
| Heating Rate | 1.0–4.0°C/min |
| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | OK-STH-8.1m² |
| Internal Dimensions (D×W×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 |
| Construction Type | Modular Walk-in Chamber with Structural Steel Frame |
| Refrigeration System | Cascade Dual-Stage Compressor System (for models ≤ −40°C) |
| Air Circulation | High-Capacity Centrifugal Blowers with Optimized Ductwork for Uniform Thermal Distribution |
| Insulation | 150 mm Thick PU Foam-Core Sandwich Panels (Thermal Conductivity ≤ 0.022 W/m·K) |
| Door | Reinforced Sealed Walk-in Door with Double-Glazed Observation Window, Anti-Frost Heating, and Interlocked Safety Latch |
| Electrical Supply | 380 VAC, 3-Phase, 50/60 Hz |
| Compliance | Designed per IEC 60068-2-1 (Cold), IEC 60068-2-2 (Dry Heat), ISO 16750-4 (Road Vehicles), and ASTM D4332 (Conditioning of Packaging) |
| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | OEM/ODM Producer |
| Country of Origin | China |
| Model | OK-STH-8.38m² |
| Internal Dimensions (D×W×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 IEC 60068-3-5) |
| Temperature Control Accuracy | ±1°C |
| Heating Rate | 1.0–4.0°C/min (empty chamber, typical mid-range condition) |
| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | OK-STH-8.5m² |
| 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 |
| Temperature Control Accuracy | ±1°C |
| Heating Rate | 1.0–4.0°C/min |
| Construction | Modular PU-insulated sandwich panels with reinforced steel frame |
| Door | Large insulated access door with observation window, anti-frost heating, and safety interlock |
| Refrigeration System | Cascade refrigeration (dual-stage compressors) |
| Air Circulation | High-capacity centrifugal fans with optimized ductwork |
| Control System | Programmable PLC-based controller with multi-segment ramp-soak profiles, real-time data logging, and Ethernet/RS485 interface |
| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Product Origin | Domestic |
| Model | OK-STH-8.88m² |
| Internal Dimensions (D×W×H) | 2000 × 2000 × 2000 mm |
| Temperature Range Options | A: 0°C / B: −20°C / C: −40°C / D: −60°C / E: −70°C |
| Temperature Uniformity | ±3°C |
| Temperature Control Accuracy | ±1°C |
| Heating Rate | 1.0–4.0°C/min |
| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | OK-STH-Series (Custom Volume) |
| Price Range | USD 11,000–285,000 (FOB Guangdong) |
| Internal Dimensions | Custom-Designed per Customer Specification (D×W×H in meters) |
| 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 IEC 60068-3-5) |
| Temperature Control Stability | ±1°C |
| Heating/cooling Ramp Rate | 1.0–4.0°C/min (average, non-loaded, mid-chamber) |
| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | OK-STH-4 |
| Chamber Volume | Customizable (Standard nominal volume: 4 m³) |
| Temperature Range Options | A: 0°C |
| B | −20°C |
| C | −40°C |
| D | −60°C |
| E | −70°C |
| Temperature Uniformity | ±3.0°C (at stabilized low-temp setpoint) |
| Temperature Control Accuracy | ±1.0°C |
| Heating/Cooling Ramp Rate | 1.0–4.0°C/min (from +25°C to target low temperature, no-load condition) |
| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Product Origin | Domestic |
| Model | OK-STH-Custom Volume |
| Temperature Range Options | A: 0°C / B: −20°C / C: −40°C / D: −60°C / E: −70°C |
| Temperature Uniformity | ±3°C |
| Control Accuracy | ±1°C |
| Ramp Rate | 1.0–4.0°C/min |
| Internal Dimensions | Custom-engineered per client specifications (D×W×H) |
| Construction | High-strength polyurethane sandwich panels (100–150 mm thickness) |
| Refrigeration System | Cascade dual-stage compressor system (for −40°C to −70°C models) |
| Heating System | High-power tubular electric heaters |
| Air Circulation | Heavy-duty centrifugal blower with optimized ductwork and adjustable airflow distribution |
| Controller | Programmable multi-segment temperature profile controller with real-time logging and Ethernet/RS485 interface |
| Compliance | Designed to meet IEC 60068-2-1 (Cold), IEC 60068-2-2 (Dry Heat), MIL-STD-810H Method 502.7, GJB 150.4A & 150.5A |
| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Product Origin | Domestic |
| Model | OK-STH-12.11m² |
| Internal Dimensions (D×W×H) | 3000 × 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 | ±2°C |
| Heating Rate | 1.0–4.0°C/min |
| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | OK-STH-8.00010m² |
| Internal Dimensions (D×W×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 |
| Temperature Control Accuracy | ±1°C |
| Heating Rate | 1.0–4.0°C/min |
| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Origin Category | Domestic |
| Model | OK-STH-5m³ |
| Temperature Range | Options A: 0°C / B: −20°C / C: −40°C / D: −60°C / E: −70°C (to +150°C) |
| Temperature Uniformity | ±3°C |
| Control Accuracy | ±1°C |
| Ramp Rate | 1.0–4.0°C/min |
| Internal Dimensions | Custom-engineered per client specification (D×W×H) |
| Volume | 5 m³ nominal (scalable) |
| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Product Origin | Domestic (China) |
| Model | OK-STH-12.00000m² |
| Internal Dimensions (D×W×H) | 3000 × 2000 × 2000 mm |
| Temperature Range Options | A: 0°C / B: −20°C / C: −40°C / D: −60°C / E: −70°C to +150°C |
| Temperature Uniformity | ±3°C |
| Temperature Control Accuracy | ±2°C |
| Heating Rate | 1.0–4.0°C/min |
| Humidity Range | 10–98% RH (dependent on temperature) |
| Compliance | Designed per GB/T 2423.4, IEC 60068-2-30, GB/T 2423.34, IEC 60068-2-38, GJB 150.9A, ISO 16750-4 |
| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | OK-STH-Custom Volume |
| Temperature Range | A: 0°C / B: -20°C / C: -40°C / D: -60°C / E: -70°C |
| Temperature Uniformity | ±3°C |
| Temperature Control Accuracy | ±1°C |
| Heating Rate | 1.0–4.0°C/min |
| Internal Dimensions | Custom-engineered per client specification (D×W×H) |
| Structural Design | Modular insulated chamber with reinforced steel frame and walk-in access door |
| Refrigeration System | Cascade refrigeration (dual-stage compressors) or optional LN₂ assist for enhanced cooling performance |
| Air Circulation | High-capacity centrifugal fans with optimized ductwork for uniform thermal distribution |
| Control System | Industrial-grade PLC-based controller with multi-segment programmable profiles, real-time data logging, Ethernet/RS485 interface, and audit-trail-capable software |
| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | OK-STH-13 |
| Temperature Range Options | 0°C / -20°C / -40°C / -60°C / -70°C |
| Temperature Uniformity | ±3°C |
| Temperature Control Accuracy | ±2°C |
| Heating Rate | 1.0–4.0°C/min |
| Custom Internal Dimensions (D×W×H) | Engineered per client specification |
| Volume | 13 m³ |
| Pricing | USD 13,800 (FOB Guangdong) |
| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | OK-STH-3 m³ (Custom Volume) |
| Temperature Range | Selectable Options: 0°C / -20°C / -40°C / -60°C / -70°C |
| Temperature Uniformity | ±3°C |
| Temperature Control Accuracy | ±2°C |
| Heating Rate | 1.0–4.0°C/min |
| Construction | Modular PU-insulated sandwich panels with reinforced steel frame |
| Door | Large insulated walk-in door with observation window, anti-frost heater, and safety interlock |
| Refrigeration System | Cascade refrigeration (dual-stage compressors) |
| Air Circulation | High-volume centrifugal fans with optimized ductwork |
| Control System | Programmable PLC-based controller with multi-segment ramp-soak profiles, data logging, and remote monitoring capability |
| Compliance | Designed to support GLP/GMP-aligned validation protocols |
| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Model | OK-STH-Volume 9 |
| Temperature Range Options | A: 0°C / B: −20°C / C: −40°C / D: −60°C / E: −70°C |
| Temperature Uniformity | ±3°C |
| Control Accuracy | ±1°C |
| Heating Rate | 1.0–4.0°C/min |
| Internal Dimensions | Custom-engineered per user specifications (D×W×H) |
| Construction | Structural steel frame, double-skin insulated panels (PU core), reinforced walk-in door with anti-frost heating, observation window, and cable/port penetrations |
| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Origin Category | Domestic |
| Model Code | OK-STH-12.0005m² |
| Internal Dimensions (D×W×H) | 3000 × 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 |
| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Producer |
| Country of Origin | China |
| Model | OK-STH-12.0015m² |
| Working Chamber Dimensions (D×W×H) | 3000 × 2000 × 2000 mm |
| Temperature Range Options | A: 0°C / B: −20°C / C: −40°C / D: −60°C / E: −70°C |
| Temperature Uniformity | ±3°C |
| Temperature Control Accuracy | ±1°C |
| Heating Rate | 1.0–4.0°C/min |