PutianRain Test Chamber

Exposure to rain significantly affects product aging, pigment fading, and metal corrosion; accordingly, waterproofing tests are receiving increasing attention across industries such as rubber, plastics, chemicals, automotive, and textiles. Environmental factors are numerous—temperature, humidity, rainfall, and more—and this waterproofing test apparatus is designed to simulate rain‑exposure conditions in environmental testing.
This product is designed to evaluate whether the enclosures and seals of electrical equipment can maintain proper performance under rain‑exposure conditions. Featuring a scientifically engineered design, it realistically simulates spray‑water environments. Utilizing digital and variable‑frequency control technologies, it enables automatic adjustment of rainfall intensity, the rotation angle of the test specimen holder, the oscillation angle of the spray‑arm, and the oscillation frequency of the spray nozzle.
Complies with standards: GB 2423.38-90, GB 4706.32-2004, IEC 5129.

Technical Specifications of the Rain-Exposure Test Apparatus
The test laboratory consists of a test bench, a water storage tank (provided by the customer), a control cabinet, a turntable, and a spray system.

Main technical parameters:
Laboratory overall dimensions: 5 m deep × 5 m wide × 3.2 m high (customer-provided room and water reservoir)
Sprinkler system: Composed of a water pump, a pressure gauge, and a fixed sprinkler pipe support.
(1) IPX12 Water Dropping Test Apparatus
1. Drip area: 1000 x 1000 x height 120 mm
2. Pinhole for dripping: ￠0.4mm
3. Pinhole spacing: 20 x 20 mm
4. Drip rate: 1–99 mm per minute or higher, adjustable via the touchscreen.
5. Rainfall rate: Adjustable between 1 mm/min, 3 mm/min, and 5 mm/min; user‑defined parameters.
6. Drip height: The sample is positioned 200 mm from the needle tip, and the drip tray has a maximum height of 1500 mm above the floor, which is adjustable.
7. Air-pressure cleaning: After the test is completed, the water in the drip tank is automatically drained, followed by a 3-minute air‑blowing cycle with adjustable timing.
8. Rack material: Coated aluminum alloy profiles
9. Installation method: Wall-mounted installation
10. Lifting: Driven by a DC electric lifting motor, with a stainless steel lead screw and pulley guide rails, complemented by a locking nut–based lifting mechanism.
(2) IPX34 rain test apparatus
1. Swing pipe: radius 800 mm (standard configuration); other dimensions are also available upon request.
2. Inner diameter of the oscillating tube: ¢16 mm
3. Nozzle inner diameter: 0.4 mm
4. Spray nozzle distance: 50 mm
5. Material of the oscillating pipe: 304 stainless steel industrial pipe
6. Nozzle angle: IP3: 120°, IP4: 180°
7. Spray tube angle: IP3: 120°, IP4: approximately 360°
8. Water spray flow rate: R800 oscillating nozzle: 3.5 L
9. Flow Calculation: Nozzle count × 0.07 L/min = flow rate at the oscillating pipe outlet; water flow rate can be set.
10. Installation methods: 1) One end can be mounted on the wall, while the other end is fixed to the floor. 2) Both ends are fixed to the floor.
11. Rack material: coated aluminum alloy profile, 40×80 mm, wall thickness 2 mm.
(3) IPX56 Rain Test Apparatus
1. Sprinkler system: Composed of a water pump, a pressure gauge, and a fixed sprinkler pipe bracket, with two spray nozzles mounted on the front side—one IP5-rated nozzle and one IP6-rated nozzle.
2. Pipe diameter: Two 6‑mm flexible hoses connect to the nozzle.
3. Nozzle inner diameter: 1—φ6.3 mm, IP5 rating; 2—φ12.5 mm, IP6 rating; the nozzle handle is hung on the cabinet wall.
4. Water spray pressure: 100–150 kPa (adjustable according to flow rate)
5. Water spray flow rate: IP5 (rating) 12.5 ± 1 (L/min), IP6 (rating) 100 ± 5 (L/min)
6. Water spray duration: 3, 10, 30, or 9,999 minutes (adjustable)
7. Nozzle-to-product distance: 2.5 m to 3 m
8. Pressure gauge, one piece
9. One multi-stage stainless steel water pump
10. Circular turntable (for sample placement): diameter 500 mm, with an adjustable speed of 1–5 r/min.
(4) Water tank
1. Inner box diameter: 800 mm, height: 1000 mm
2. Cabinet material: 304 stainless steel, 2 mm thick
3. Water Level: A transparent flexible hose is used in conjunction with a stainless steel ruler to observe the water level; the scale reads up to 1.5 meters.
4. Water tank level control: stainless steel float ball, in conjunction with an overflow hole.
(5) Universal Rotary System
1. Turntable diameter: 500 mm
2. Turntable speed: 1–3 rpm, adjustable.
3. Turntable angle: Adjustable to a 15-degree tilt.
4. Turntable material: 304 stainless steel, laser-cut and equipped with straps for securing samples.
5. Live testing: Equipped with a waterproof socket (to be specified in advance)
6. Turntable height: Double-layer design with adjustable height; the adjustment mechanism operates on a screw‑rod principle.
7. Turntable Mobility: Equipped with four swivel casters that can be moved freely, featuring brakes.
8. Turntable material: 304 stainless steel
9. Turntable Power System: TECO Motor + Reduction Gearbox + Inverter
(6) Control System
1. Employs a touchscreen, PLC, and a closed-loop stepper control system.
2. Pump flow control: Speed regulation is achieved using a variable-frequency drive.
3. Water spray flow rate: The flow rate can be directly set via the touch screen, with closed-loop feedback controlled by a flow meter.
4. Control functions: adjustable height of the drip tray, oscillation tube angle, water spray flow rate, turntable speed, test time setting, and automatic drainage and blow‑drying of the drip tray.
5. Protection devices: leakage protection, water‑shortage protection, overload protection, and safety‑distance protection.