The walk-in temperature and humidity environmental chamber is designed for testing entire systems or large components under various conditions such as low temperature, high temperature, temperature fluctuations, constant heat, and alternating damp heat. Also known as a "constant temperature and humidity room," it can be customized in size and functionality based on user requirements. Its modular design, sleek appearance, and advanced airflow system make it adaptable to diverse testing needs. Equipped with a touchscreen and PLC controller, this chamber is a high-tech solution for precise environmental simulation.
This article explores the working principles, application fields, technical features, key selection criteria, and specifications of the walk-in temperature and humidity chamber, offering readers a comprehensive understanding of this sophisticated product.
The chamber integrates advanced cooling, heating, humidifying, dehumidifying, and air circulation systems to achieve precise temperature and humidity control. Its interior uses multi-layer insulation and high-efficiency heat exchangers to ensure a stable and uniform environment. The control system, powered by a microprocessor or PLC and high-precision sensors, continuously monitors and adjusts environmental parameters in real-time to maintain preset values with exceptional stability during extended operations.
The walk-in chamber is widely used in industries requiring environmental simulation, including:
When selecting a walk-in temperature and humidity chamber, consider the following factors:
5. Technical parameters
| Capacity | Inner chamber size (W*H*D) | Temperature range | Specification/Model |
|
8m³ |
2000*2000*2000 (mm) |
-40 °C ~+150°C | SN886-8-(-40 °C) |
| -50 ℃～+120℃ | SN886-8-(-50 °C) | ||
| -60 °C ~+150°C | SN886-8-(-60 °C) | ||
| -70 °C ~+150°C | SN886-8-(-70 °C) | ||
|
16m³ |
4000*2000*2000 (mm) |
-40 °C ~+150°C | SN886-16-(-40 °C) |
| -50 ℃～+120℃ | SN886-16-(-50 °C) | ||
| -60 °C ~+150°C | SN886-16-(-60 °C) | ||
| -70 °C ~+150°C | SN886-16-(-70 °C) | ||
|
24m³ |
4000*2000*3000 (mm) |
-40 °C ~+150°C | SN886-24-(-40 °C) |
| -50 ℃～+120℃ | SN886-24-(-50 °C) | ||
| -60 °C ~+150°C | SN886-24-(-60 °C) | ||
| -70 °C ~+150°C | SN886-24-(-70 °C) | ||
|
30m³ |
5000*2000*3000 (mm) |
-40 °C ~+150°C | SN886-30-(-40 °C) |
| -50 ℃～+120℃ | SN886-30-(-50 °C) | ||
| -60 °C ~+150°C | SN886-30-(-60 °C) | ||
| -70 °C ~+150°C | SN886-30-(-70 °C) |
| 1. Sample limitation | This test chamber prohibits: Testing or storage of flammable, explosive, and volatile substance samples Testing or storage of samples of corrosive substances Testing or storage of biological samples Testing or storage of strong electromagnetic emission source samples Testing or storage of radioactive material samples Test or storage of highly toxic substance samples Testing or storage of samples that may produce flammable, explosive, volatile, highly toxic, corrosive and radioactive materials during testing or storage |
| 2. Volume, size and weight | |
| 2.1 Nominal content volume | 6M³ |
| 2.2 Inner chamber size | D(2000)mm ×W(1500)mm× H(2000)mm |
| 2.3 External dimensions | Approx. D(3750)mm ×W(2120)mm× H(2450)mm |
| 2.4 Weight | Approx. 1500KG |
| 3. Performance | |
| 3.1 Temperature range | Temperature range:-50 ℃～+120℃ |
| 3.2 Humidity range |
(20 ～ 98)% RH (refer to temperature and humidity controllable range chart, no active wet and heat load)
Temperature and humidity controllable range chart |
| 3.3 Temperature fluctuation | ≤±0.5℃ (The temperature fluctuation is half of the difference between the measured maximum temperature and the minimum temperature at the center point) |
| 3.4 Temperature uniformity | ±2.0℃ (Temperature uniformity is the arithmetic mean of the difference between the highest and lowest temperature measured in each test) |
| 3.5 Temperature error | ±2.0℃ |
| 3.6 Heating time | +20℃～+120℃≤45min (Non-linear no-load) |
| 3.7 Cooling time | +30℃～-50℃≤75min (Non-linear no-load) |
| 3.8 Relative humidity error (Damp heat only) |
±3%RH |
|
3.9 Working noise
|
Sound level≤75dB (Measured in a soundproof room with an ambient temperature of 25 ° C and low echo; using A weighting, the average value of 8 points is tested; each test point is 1 meter away from the noise source and 1 meter away from the ground) |
| 4. Structural characteristics | |
|
4.1 Material
|
1. Outer wall material: Cold rolled steel plate, pickling and phosphating advanced powder baking paint 2.Inner wall material: SUS304# stainless steel plate 3. Chamber insulation material: rigid polyurethane foam + glass fiber |
| 4.2 Air duct parts | Centrifugal fan; the air outlet can adjust the air volume, height and return air volume |
| 4.3 Door | Double open hinged door, adopts reaction-free grip handle, equipped with observation window, lighting lamp, window/door frame anti-condensation electric heating device, door opening size: (approximately) 1.5*2M |
| 4.4 Observation window | There are two conductive film explosion-proof tempered glass observation windows on the door (with anti-condensation function) 500W×600H (mm) |
| 4.5 Fan | Long axis centrifugal fan |
| 4.6 Sample rack | Two built-in stainless steel adjustable movable tray racks |
|
4.7 Impeller
|
Use stainless steel impeller imported from Taiwan |
| 4.8 Heater | Nickel-chromium alloy electric heater |
|
4.9 Refrigeration Compressor
|
Germany Bitzer compressor |
|
4.10 Evaporator
|
Fin type evaporator |
|
4.11 Refrigerating method
|
Mechanical compressor cascade |
|
4.12 Cooling method
|
Air-cooling |
|
4.13Temperature control instrument
|
TH1200-A, 7-inch smart LCD touch programmable controller |
| 4.14 Lead hole | Φ100mm, 1pc, equipped with a special foam rubber plug (located on the left side of the chamber) |
|
5. Heating, humidification and refrigeration systems and their working principles
|
|
| 5.1 Heating system | Stainless steel sleeve type anti-dry heating tube built-in nickel-chromium alloy heating wire |
| U-shaped fin type stainless steel high-speed heating electric heater is used for heating | |
| Completely independent system, does not affect the control circuit | |
| 5.2 Humidification system |
Humidification method: 1. External detachable boiler humidification method or built-in water tank humidification2. Stainless steel armored humidifier 3. Humidifier control mode: non-contact and other periodic pulse width adjustment, SSR (solid state relay) 4. Water level control device, humidifier anti-dry burning device, sediment collection device, liquid level observation window 5. Humidifier power: 12KW |
| Humidification system |
Humidifier: 1. Fully automatic water supply device or button type electric automatic water replenishment 2. High and low temperature double water level electronic level switch to prevent malfunction 3. Water shortage and air burning over temperature protection + ultra-low water level protection + water supply overtime protection to ensure the safe operation of equipment |
| 5.3 Refrigeration system | Cooling method: air-cooling |
| Refrigeration compressor: Germany Bitzer compressor with environmentally friendly refrigerant | |
| Refrigerant copper tube: inner spiral K-TYPE refrigerant copper tube | |
| Condenser: wave-shaped fin type air-cooled condenser | |
| Evaporator: Slope type FIN—TUBE evaporator | |
| Freezing element: Original imported solenoid valve, drying filter, etc. | |
| 5.4 Features | The pipelines of the whole system are subjected to a 22kg leak detection test |
| The heating and cooling system is completely independent | |
| The system can prevent high temperature and high pressure air flow back | |
| All refrigeration system action programs are completely controlled by the microcomputer controller | |
At Sinuo Testing Equipment Co., Limited, we offer state-of-the-art walk-in environmental chambers that cater to a wide range of testing needs, from temperature and humidity simulations to complex, customized environments. While we provide a variety of standard models, we understand that every client’s requirements are unique. That’s why we specialize in crafting bespoke solutions, tailored precisely to your specifications.
Whether you're in aerospace, automotive, electronics, or other industries, our flexible designs ensure that your testing conditions are met with the highest accuracy and reliability.
Looking for something beyond the ordinary? Let’s discuss how we can create the perfect testing environment for your business. Contact us today to unlock custom solutions that drive your success!
The walk-in temperature and humidity environmental chamber is designed for testing entire systems or large components under various conditions such as low temperature, high temperature, temperature fluctuations, constant heat, and alternating damp heat. Also known as a "constant temperature and humidity room," it can be customized in size and functionality based on user requirements. Its modular design, sleek appearance, and advanced airflow system make it adaptable to diverse testing needs. Equipped with a touchscreen and PLC controller, this chamber is a high-tech solution for precise environmental simulation.
This article explores the working principles, application fields, technical features, key selection criteria, and specifications of the walk-in temperature and humidity chamber, offering readers a comprehensive understanding of this sophisticated product.
The chamber integrates advanced cooling, heating, humidifying, dehumidifying, and air circulation systems to achieve precise temperature and humidity control. Its interior uses multi-layer insulation and high-efficiency heat exchangers to ensure a stable and uniform environment. The control system, powered by a microprocessor or PLC and high-precision sensors, continuously monitors and adjusts environmental parameters in real-time to maintain preset values with exceptional stability during extended operations.
The walk-in chamber is widely used in industries requiring environmental simulation, including:
When selecting a walk-in temperature and humidity chamber, consider the following factors:
5. Technical parameters
| Capacity | Inner chamber size (W*H*D) | Temperature range | Specification/Model |
|
8m³ |
2000*2000*2000 (mm) |
-40 °C ~+150°C | SN886-8-(-40 °C) |
| -50 ℃～+120℃ | SN886-8-(-50 °C) | ||
| -60 °C ~+150°C | SN886-8-(-60 °C) | ||
| -70 °C ~+150°C | SN886-8-(-70 °C) | ||
|
16m³ |
4000*2000*2000 (mm) |
-40 °C ~+150°C | SN886-16-(-40 °C) |
| -50 ℃～+120℃ | SN886-16-(-50 °C) | ||
| -60 °C ~+150°C | SN886-16-(-60 °C) | ||
| -70 °C ~+150°C | SN886-16-(-70 °C) | ||
|
24m³ |
4000*2000*3000 (mm) |
-40 °C ~+150°C | SN886-24-(-40 °C) |
| -50 ℃～+120℃ | SN886-24-(-50 °C) | ||
| -60 °C ~+150°C | SN886-24-(-60 °C) | ||
| -70 °C ~+150°C | SN886-24-(-70 °C) | ||
|
30m³ |
5000*2000*3000 (mm) |
-40 °C ~+150°C | SN886-30-(-40 °C) |
| -50 ℃～+120℃ | SN886-30-(-50 °C) | ||
| -60 °C ~+150°C | SN886-30-(-60 °C) | ||
| -70 °C ~+150°C | SN886-30-(-70 °C) |
| 1. Sample limitation | This test chamber prohibits: Testing or storage of flammable, explosive, and volatile substance samples Testing or storage of samples of corrosive substances Testing or storage of biological samples Testing or storage of strong electromagnetic emission source samples Testing or storage of radioactive material samples Test or storage of highly toxic substance samples Testing or storage of samples that may produce flammable, explosive, volatile, highly toxic, corrosive and radioactive materials during testing or storage |
| 2. Volume, size and weight | |
| 2.1 Nominal content volume | 6M³ |
| 2.2 Inner chamber size | D(2000)mm ×W(1500)mm× H(2000)mm |
| 2.3 External dimensions | Approx. D(3750)mm ×W(2120)mm× H(2450)mm |
| 2.4 Weight | Approx. 1500KG |
| 3. Performance | |
| 3.1 Temperature range | Temperature range:-50 ℃～+120℃ |
| 3.2 Humidity range |
(20 ～ 98)% RH (refer to temperature and humidity controllable range chart, no active wet and heat load)
Temperature and humidity controllable range chart |
| 3.3 Temperature fluctuation | ≤±0.5℃ (The temperature fluctuation is half of the difference between the measured maximum temperature and the minimum temperature at the center point) |
| 3.4 Temperature uniformity | ±2.0℃ (Temperature uniformity is the arithmetic mean of the difference between the highest and lowest temperature measured in each test) |
| 3.5 Temperature error | ±2.0℃ |
| 3.6 Heating time | +20℃～+120℃≤45min (Non-linear no-load) |
| 3.7 Cooling time | +30℃～-50℃≤75min (Non-linear no-load) |
| 3.8 Relative humidity error (Damp heat only) |
±3%RH |
|
3.9 Working noise
|
Sound level≤75dB (Measured in a soundproof room with an ambient temperature of 25 ° C and low echo; using A weighting, the average value of 8 points is tested; each test point is 1 meter away from the noise source and 1 meter away from the ground) |
| 4. Structural characteristics | |
|
4.1 Material
|
1. Outer wall material: Cold rolled steel plate, pickling and phosphating advanced powder baking paint 2.Inner wall material: SUS304# stainless steel plate 3. Chamber insulation material: rigid polyurethane foam + glass fiber |
| 4.2 Air duct parts | Centrifugal fan; the air outlet can adjust the air volume, height and return air volume |
| 4.3 Door | Double open hinged door, adopts reaction-free grip handle, equipped with observation window, lighting lamp, window/door frame anti-condensation electric heating device, door opening size: (approximately) 1.5*2M |
| 4.4 Observation window | There are two conductive film explosion-proof tempered glass observation windows on the door (with anti-condensation function) 500W×600H (mm) |
| 4.5 Fan | Long axis centrifugal fan |
| 4.6 Sample rack | Two built-in stainless steel adjustable movable tray racks |
|
4.7 Impeller
|
Use stainless steel impeller imported from Taiwan |
| 4.8 Heater | Nickel-chromium alloy electric heater |
|
4.9 Refrigeration Compressor
|
Germany Bitzer compressor |
|
4.10 Evaporator
|
Fin type evaporator |
|
4.11 Refrigerating method
|
Mechanical compressor cascade |
|
4.12 Cooling method
|
Air-cooling |
|
4.13Temperature control instrument
|
TH1200-A, 7-inch smart LCD touch programmable controller |
| 4.14 Lead hole | Φ100mm, 1pc, equipped with a special foam rubber plug (located on the left side of the chamber) |
|
5. Heating, humidification and refrigeration systems and their working principles
|
|
| 5.1 Heating system | Stainless steel sleeve type anti-dry heating tube built-in nickel-chromium alloy heating wire |
| U-shaped fin type stainless steel high-speed heating electric heater is used for heating | |
| Completely independent system, does not affect the control circuit | |
| 5.2 Humidification system |
Humidification method: 1. External detachable boiler humidification method or built-in water tank humidification2. Stainless steel armored humidifier 3. Humidifier control mode: non-contact and other periodic pulse width adjustment, SSR (solid state relay) 4. Water level control device, humidifier anti-dry burning device, sediment collection device, liquid level observation window 5. Humidifier power: 12KW |
| Humidification system |
Humidifier: 1. Fully automatic water supply device or button type electric automatic water replenishment 2. High and low temperature double water level electronic level switch to prevent malfunction 3. Water shortage and air burning over temperature protection + ultra-low water level protection + water supply overtime protection to ensure the safe operation of equipment |
| 5.3 Refrigeration system | Cooling method: air-cooling |
| Refrigeration compressor: Germany Bitzer compressor with environmentally friendly refrigerant | |
| Refrigerant copper tube: inner spiral K-TYPE refrigerant copper tube | |
| Condenser: wave-shaped fin type air-cooled condenser | |
| Evaporator: Slope type FIN—TUBE evaporator | |
| Freezing element: Original imported solenoid valve, drying filter, etc. | |
| 5.4 Features | The pipelines of the whole system are subjected to a 22kg leak detection test |
| The heating and cooling system is completely independent | |
| The system can prevent high temperature and high pressure air flow back | |
| All refrigeration system action programs are completely controlled by the microcomputer controller | |
At Sinuo Testing Equipment Co., Limited, we offer state-of-the-art walk-in environmental chambers that cater to a wide range of testing needs, from temperature and humidity simulations to complex, customized environments. While we provide a variety of standard models, we understand that every client’s requirements are unique. That’s why we specialize in crafting bespoke solutions, tailored precisely to your specifications.
Whether you're in aerospace, automotive, electronics, or other industries, our flexible designs ensure that your testing conditions are met with the highest accuracy and reliability.
Looking for something beyond the ordinary? Let’s discuss how we can create the perfect testing environment for your business. Contact us today to unlock custom solutions that drive your success!
