Rain Test Chamber Manufacturer & IP Water Testing

Rain Test Chamber

The IPX3456 rain test chamber is used to test the waterproof performance of products at different levels. The chamber is mostly made of stainless steel, with built-in swing pipes and nozzles, and the water flow parameters are accurately controlled through auxiliary equipment such as flow meters.

IPX3 can simulate water spraying, with the swing pipe swinging angle of ±60°;
IPX4 simulates splashing water, with the swing pipe swinging angle of ±180°;
IPX5 uses a specific nozzle for water spraying test;
IPX6 can simulate a strong water spraying environment.

It is widely used in home appliances, electronics, automotive parts and other industries. By simulating rain scenes of different intensities, it tests the waterproof ability of products and provides a basis for product quality control and design improvement.

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Electronics

Car-mounted LiDAR undergoes rain test

As a core component of the Advanced Driver Assistance System (ADAS) and autonomous driving system, the waterproof performance of automotive radar is directly related to the safety and reliability of the vehicle.
Problem 1: Water ingress into the radar
Cause: The shell is not tightly sealed or the sealing ring is aging.
Solution: Improve the sealing design and use higher performance sealing materials.
Problem 2: Signal attenuation
Cause: Rain interferes with the radar signal.
Solution: Optimize the antenna design and signal processing algorithm of the radar.

Materials

New ultra-thin tent material undergoes rain test

Although silicone-coated nylon fabrics are inherently waterproof, rain tests can be used to accurately test their ability to prevent rainwater from penetrating under different rainfall intensities and durations, and to determine whether they can meet the needs of using the tent in various rainy weather environments. For example, testing whether it can ensure that the interior of the tent is dry when heavy rain (rainfall of more than 50 mm per hour) lasts for two hours.

If the inside is damp, with obvious water stains or leaks, it means that the waterproof performance does not meet the standards and the cause needs to be analyzed. It may be uneven coating thickness, poor sealing at the seams, etc., and the material or structural design can be improved.

New Energy Batteries

Outdoor photovoltaic energy storage battery rain test

The international community follows the IEC 60529 standard, and generally requires a higher level of protection for outdoor photovoltaic energy storage batteries. For example, IPX5 and above. The IPX5 standard requires that at a water flow rate of 12.5 liters per minute, a nozzle with a diameter of 6.3 mm be used to spray water at a distance of 2.5 to 3 meters from the sample for 3 minutes from all directions to detect whether the battery has water ingress. The higher IPX6 standard requires that at a water flow rate of 100 liters per minute, a nozzle with a diameter of 12.5 mm be used to spray water at a distance of 2.5 to 3 meters from the sample for 10 minutes from all directions to ensure the waterproof performance of the battery in extreme weather such as heavy rain.

Package

Structural stability test of honeycomb carton

The penetration and soaking of rainwater may affect the structural strength of honeycomb cartons. The test aims to observe whether the overall structure of the honeycomb cartons will deform or collapse during and after the rain, and whether the connections between the parts are still firm, so as to evaluate its structural stability in a humid environment. If the size changes greatly and the structural strength decreases significantly, further research is needed on how to improve its structural stability under humid conditions, such as optimizing the honeycomb structure design and strengthening the strength of the connection parts.

Metal mold

Water resistance test of molds with special surface treatment

Special surface treatment (such as electroplating, chemical plating, coating, etc.) is to enhance the performance of the mold, but the treated layer may react chemically or be physically damaged when in contact with rainwater. The rain test can test whether the surface treatment layer has bubbling, peeling, dissolution, etc. under the scouring of rainwater, and evaluate its water resistance. If there is obvious bubbling, peeling, dissolution, and obvious color change, the severity of the problem should be evaluated. For minor problems, the surface treatment process can be optimized, and for serious problems, the treatment plan needs to be redesigned.

Aerospace

The primary purpose is to ensure flight safety. If it rains during flight, rainwater will seep into key components such as motors, batteries, and flight control systems, causing short circuits, failures, or even crashes, endangering the safety of people and property. The second is to ensure the quality of shooting. If the lens and camera are not waterproof, rain will affect the clarity and stability of the picture, and even damage the camera. If there are problems such as water ingress, short circuit, loss of control of flight attitude, abnormal shooting, etc., it will be judged as failed, and it is necessary to analyze the waterproof design defects, sealing process problems, etc., and retest after improvement. Improve product reliability and durability and reduce after-sales costs.

Selection criteria when buying a temperature test chamber

IP34 related parameters and specifications

1. Inner box size (mm): width 1000 × height 1000 × length 1000,
Outer box size (mm): width 1380 × height 1900 × length 1050, Bucket: length 2000 width 300 height 400

2. Test bench: diameter Φ450mm, speed about 1-5 rpm, height must be adjustable;

3. Water spray ring radius (m): 0.4m, removable (for the third-level waterproof and fourth-level waterproof a test method);

4. Water spray pipe swing angle range: ±60° or ±160° swing with the vertical direction (settable);

5. Water spray hole diameter (mm): φ0.4;

6. Swing pipe: This equipment is equipped with 1 R400mm swing pipe, the nozzle is Φ0.4mm hole, and the number of nozzles is 25 according to the standard.

7. Flow rate of each water spray hole: 0.07L/M (adjustable), flow meter displays direct reading;

8. Swing time: about 4S for each swing (2×120°), or about 12S for each swing (2×320°);

9. Test time: 1-999,999min (settable);

10. Material: stainless steel or powder spray (all parts in contact with water are made of stainless steel),

11. Control system: PLC+stepper motor+touch screen;

12. Safety protection device: power overload, short circuit protection, grounding protection, water shortage protection, alarm sound prompt;

13. Power supply: 1∮, 380V, 50Hz.

14. This machine adopts PLC+stepper motor+touch screen control system: swing angle, swing speed, test time can be set directly on the touch screen

Main technical parameters of IP56

1. Two sprinkler heads are installed on the longitudinal IPX56. One IPX5 sprinkler head and one IPX6 sprinkler head;

2. Inner diameter of spray hole: IPX5 (grade) φ6.3mm, IPX6 (grade) φ12.5mm

3. Water spray flow: IPX5 (grade) 12.5±1 (L/min), IPX6 (grade) 100±5 (L/min)

4. Pipe diameter: one 1/4 high-pressure soft pressure pipe

5. Turntable: one, speed: 3±1R/min

6. Water spray duration: 3, 10, 30, 9999min (adjustable)

7. Running time control: 1M~9999min (adjustable)

8. Water circulation system to ensure the recycling of water sources

9. Control system: self-developed touch screen control system.

10. The water tank door of the equipment is made of tempered glass as a waterproof wall

11. The inner box is made of SUS304=1.0 brushed plate, and the whole is fully welded and assembled.

What standards does the rain test chamber support

IPX3, IPX4, IPX5, and IPX6 waterproof ratings are typically tested and certified according to the following standards:

1. IEC 60529 (International Electrotechnical Commission - IP Protection Ratings)

IPX3: Protection against water spraying at an angle of up to ±60° from vertical.
IPX4: Protection against water splashing from any direction.
IPX5: Protection against low-pressure water jets from any direction.
IPX6: Protection against powerful water jets from any direction.

2. ISO 20653 (Ingress Protection for Road Vehicles)

Applicable to automotive components, similar to IEC 60529 but adapted for vehicle industry requirements.

3. DIN 40050-9 (German Industrial Standard - Vehicle Protection Ratings)

An extension of IEC 60529, mainly used for automotive and heavy equipment protection testing.
Defines IPX9K, which tests resistance to high-temperature and high-pressure water jets, stricter than IPX6.

4. GB/T 4208 (Chinese National Standard - Enclosure Protection Ratings)

Equivalent to IEC 60529, it specifies protection levels against solid objects and water ingress (IP codes).
IPX3 to IPX6 test requirements are essentially the same as IEC 60529.

5. JIS D0203 (Japanese Industrial Standard - Automotive and Electronics Waterproof Testing)

Used for automotive and electronic products to ensure resistance to rain and wet environments.

6. MIL-STD-810H (U.S. Military Standard - Environmental Test Methods)

Method 506.6 (Rain Test) and Method 512.5 (Immersion Test) align with IPX5/IPX6 requirements, mainly for military-grade equipment.

Summary:

Rain test chambers are designed to comply with IEC 60529, ISO 20653, DIN 40050-9, GB/T 4208, JIS D0203, and MIL-STD-810H standards. These standards ensure that products in electronics, electrical equipment, automotive, and military industries can withstand various levels of water exposure and maintain proper functionality.

What are the safety protection functions of the rain test chamber

1. Power overload and short circuit protection

2. Grounding protection

3. Water shortage protection

4. Alarm prompt