Walk-in Environmental Test Chamber
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| Brand | Aipu Technology (APKJ) |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Origin Category | Domestic |
| Model | AP-KF-15C |
| Price Range | USD 14,000–28,000 |
| Internal Dimensions (D×W×H) | Customizable |
| Temperature Range | 0 °C to +85 °C |
| Temperature Uniformity | ±3 °C |
| Temperature Deviation | ±2 °C |
| Control Resolution | 0.01 °C |
| Heating Rate (non-linear, no-load) | 1.0–3.0 °C/min |
| Brand | All Precision Instrument |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Model | BHG-9102 |
| Internal Dimensions (D×W×H) | 400 × 450 × 550 mm |
| Temperature Range | −40 °C to +150 °C (unloaded) |
| Humidity Range | 20–98 %RH (no active thermal load) |
| Temperature Uniformity | ±2 °C (unloaded) |
| Temperature Fluctuation | ≤±0.5 °C (unloaded) |
| Humidity Fluctuation | ≤±3 %RH |
| Heating Rate | ≤40 min (20 °C to 100 °C) |
| Cooling Rate | ≤30 min (20 °C to −20 °C) |
| Control Accuracy | ±2 °C / ±3 %RH |
| Sensor Type | PT100 armored resistance thermometers (temperature & humidity), dry-wet bulb principle for RH calculation |
| Refrigeration System | Single-stage, imported Tecumseh (France) compressor, R404A refrigerant (DuPont), Danfoss (Denmark) expansion valve, Parker (USA) filter-drier, Castel (Italy) solenoid valve |
| Humidification System | Built-in stainless steel water tank with Taiwan-imported electronic level controller, visual glass water-level indicator |
| Controller | Programmable high-resolution color touchscreen HMI, bilingual (English/Chinese), PID + BTHC balanced temperature-humidity control, 10 program groups × 16 segments (160 total), max segment time 99 h 59 min, up to 999 full cycles, USB data logging support |
| Safety Protections | Over-temperature alarm (chamber & compressor), over-current/overload protection, phase failure & ground fault detection, fan motor thermal protection, dry-run prevention for humidifier, fuse and SSR-based zero-crossing power control, leakage current protection |
| Brand | APKJ |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | AP---HX |
| Pricing | Available Upon Request |
| Brand | APKJ |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Origin Category | Domestic |
| Model | AP-GD-800 |
| Internal Volume | 800 L (Customizable Dimensions) |
| Temperature Range | -70 °C to +150 °C |
| Temperature Uniformity | ±2 °C |
| Temperature Control Resolution | 0.01 °C |
| Heating Rate | 3.0 °C/min |
| Refrigeration System | Dual-stage cascade with hermetic Tecumseh (France) compressors |
| Refrigerants | Low-GWP blend — R23/R508B (low-temp stage), R404A/R507 (high-temp stage) |
| Compliance | GB/T 10589–1989, GB/T 10592–1989, GB/T 2423.1–1989 (Test Aa/Ab), GB/T 2423.4–1993 (Test Db), MIL-STD-810D Method 502.2 & 507.2 |
| Key | Brand: APKJ |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Manufacturer |
| Country of Origin | China |
| Model | AP-HX-2 |
| Pricing | Upon Request |
| Brand | APKJ |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Manufacturer |
| Country of Origin | China |
| Model | AP-KF-4.5m |
| Pricing | Upon Request |
| Brand | Apkji |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Manufacturer |
| Country of Origin | China |
| Model | AP-HX |
| Temperature Range | −40 °C to +120 °C |
| Humidity Range | 35–95 %RH |
| Temperature Uniformity | ≤ ±2 °C |
| Temperature Stability | ≤ ±0.5 °C |
| Humidity Accuracy | +2 / −3 %RH |
| Power Supply | 3-phase 380 V ±10%, 50 Hz ±2% |
| Insulation | 100 mm polyurethane foam + glass fiber |
| Refrigeration | 1 × Copeland 10 HP scroll compressor + 1 × Tecumseh 6 HP dehumidification unit |
| Control System | OYO or TIME880 intelligent touchscreen controller with PT100 sensors |
| Compliance | GB/T 5170.2/5/18, GB/T 2423.1/2/3/4, GB 10592, GB 10586 |
| Brand | Apkji (APKJ) |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | AP-KF-18m³ |
| Quotation | Available Upon Request |
| Internal Dimensions (D×W×H) | 3000 × 3000 × 2800 mm |
| External Dimensions (D×W×H) | 3240 × 3240 × 3040 mm |
| Temperature Range | Ambient to +60 °C (adjustable in 0.1 °C increments) |
| Temperature Uniformity | ±2.0 °C |
| Temperature Fluctuation | ±1.0 °C |
| Display Resolution | 0.1 °C |
| Heating Rate | ≥1.0–3.0 °C/min (at no-load condition) |
| Timer Range | 1 second to 9999 hours (selectable units) |
| Total Power Consumption | 22 kW |
| Supply Voltage | AC 380 V / 50 Hz |
| Brand | Apkji (APKJ) |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | OEM/ODM Manufacturer |
| Country of Origin | China |
| Model | AP-KF-20 |
| Pricing | Upon Request |
| Brand | Apkji |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Manufacturer |
| Country of Origin | China |
| Model | AP-KF-C |
| Price Range | USD 7,000 – 14,000 (FOB) |
| Internal Dimensions | Customizable |
| Temperature Range | −40 °C to +85 °C |
| Temperature Uniformity | ≤2.0 °C (empty chamber, arithmetic mean of max/min deviations) |
| Temperature Stability | ±0.5 °C (setpoint vs. measured value) |
| Temperature Control Resolution | 0.05 °C |
| Heating Rate | 3 °C/min (typical, under standard load conditions) |
| Noise Level | ≤70 dB(A) (A-weighted, 1 m distance, 1 m height, ambient 25 °C, anechoic environment) |
| Power Supply | AC 380 V, 3-phase 4-wire + PE |
| Brand | Derui Testing |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | DR-H202-V25 |
| Quotation | Upon Request |
| Internal Dimensions (W×D×H) | 2500 × 2200 × 2000 mm |
| Temperature Range | −40 °C to +150 °C |
| Temperature Uniformity | ±2 °C |
| Temperature Control Resolution | 0.1 °C |
| Heating Rate | 3 °C/min |
| Brand | OK |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Product Origin | Domestic |
| Model | 0K-STH-4.55m² |
| Internal Dimensions (D×W×H) | 1500 × 1800 × 1500 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-0001 |
| Internal Dimensions | Custom-engineered per client specification (D×W×H) |
| Temperature Range | Selectable 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 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 |
| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | OK-STH-Volume.0 |
| Price | USD 11,200 (FOB Guangdong) |
| Internal Dimensions (D×W×H) | Customizable |
| Temperature Range | −70 °C to +150 °C |
| Temperature Uniformity | ±3 °C |
| Temperature Control Accuracy | ±1 °C |
| Heating Rate | Up to 3 °C/min |
| Cooling Rate | Up to 1 °C/min |
| Humidity Range | 20–98% RH (at ≥10 °C) |
| Humidity Control Accuracy | ±2.5% RH |
| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | OK-STH (Custom Volume) |
| Price | USD 13,800 (FOB Guangdong) |
| Internal Dimensions (D×W×H) | Customizable |
| Temperature Range | −40 °C to +150 °C |
| Temperature Uniformity | ±2 °C |
| Temperature Control Accuracy | ±1 °C |
| Heating Rate | 3 °C/min |
| Cooling Rate | 1 °C/min |
| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | OK-STH (Custom Volume Options: 5, 10, 20, 50, 100 m³) |
| Temperature Range | −40 °C to +150 °C |
| Temperature Uniformity | ≤ ±2 °C |
| Temperature Control Accuracy | ±1 °C |
| Heating Rate | Up to 3 °C/min |
| Cooling Rate | Up to 1 °C/min |
| Humidity Range | 10–98% RH |
| Humidity Uniformity | ±2–3% RH |
| Humidity Control Accuracy | ±0.1% RH (at stable condition) |
| Refrigeration System | Single-stage or cascade (dual-stage) refrigeration |
| Compressor | Hermetic Tecumseh (France) |
| Controller | YX-880 Touchscreen PID Controller (Hong Kong) |
| Construction | Exterior – Premium Color-Coated Steel |
| Power Supply | AC 1φ 220 V / 3φ 220/380 V, 50/60 Hz |
| Safety Protections | Leakage Circuit Breaker, Over-Temperature Protector, Phase-Loss Protector, Low-Water-Level Cut-off |
| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | OK-STH-12m² |
| Internal Dimensions (W×D×H) | 2000 × 3000 × 2000 mm |
| Temperature Range | −50 °C to +150 °C |
| Temperature Uniformity | ±2 °C |
| Temperature Control Accuracy | ±1 °C |
| Heating Rate | +3 °C/min |
| Cooling Rate | −1 °C/min |
| Construction | Exterior – Premium Color-Coated Steel |
| Refrigeration System | Dual-Stage Cascade Refrigeration |
| Compressor | Hermetic Tecumseh (France) |
| Humidity Range | 10–98 %RH (optional configuration) |
| Humidity Uniformity | ±2–3 %RH |
| Controller | YX-880 Touchscreen PID Controller (Hong Kong) |
| Power Supply | AC 1φ 220 V / 3φ 220/380 V, 50/60 Hz |
| Compliance | GB 11158, GB/T 2423.1–2423.4, IEC 60068-2-1 & -2-2, GJB 150.3/150.4/150.9 |
| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Product Origin | Domestic (China) |
| Model | OK-STH-8m2.010 |
| Internal Dimensions (D×W×H) | 2000 × 2000 × 2000 mm |
| Temperature Range | −20 °C to +150 °C |
| Temperature Uniformity | ±2 °C |
| Temperature Control Accuracy | ±1 °C |
| Heating Rate | 3 °C/min (non-linear, unloaded) |
| Cooling Rate | 1 °C/min (non-linear, unloaded) |
| Humidity Range | 20–98 %RH |
| Humidity Uniformity | ±3 %RH |
| Humidity Fluctuation | ±2 %RH |
| Construction | Inner/Outer Chamber – Stainless Steel |
| Insulation | Rigid Polyurethane Foam + Glass Wool |
| Refrigeration System | Hermetic Compressor (Tecumseh/Tecumseh-equivalent), Eco-friendly Refrigerant (R404A/R134a blend) |
| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | OK-STH-Series (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 Client Specification (D×W×H) |
| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | OEM/ODM Manufacturer |
| Country of Origin | China |
| Model | OK-STH-12.00010m² |
| 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 Stability | ±1°C |
| Heating Ramp Rate | 1.0–4.0°C/min |
| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | OK-STH-12.000m² |
| 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 (empty load) |
| Brand | OK |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | OK-STH-12.1688m² |
| 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 (per IEC 60068-3-5 & GB/T 2423.1/2) |
| Temperature Control Stability | ±1°C |
| Heating Rate | 1.0–4.0°C/min (dependent on setpoint and load) |
| Brand | OK |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Product Origin | Domestic (China) |
| Model | OK-STH-12m2.0100 |
| Internal Dimensions (D×W×H) | 3000 × 2000 × 2000 mm |
| Temperature Range | −40 °C to +150 °C |
| Temperature Uniformity | ±2 °C |
| Temperature Control Accuracy | ±1 °C |
| Ramp Rate | +3 °C/min (heat-up), −1 °C/min (cool-down) |