Rain Test Chamber Manufacturer
BONAD manufactures rain test chambers and water jet test equipment for controlled dripping, rain spray, powerful water jets and high-pressure hot-water exposure. Solutions support IEC 60529, ISO 20653:2023, JIS D 0203 and applicable UL rain-test methods.
What is a rain test chamber?
A rain test chamber is a controlled water-ingress test system used to evaluate how products and enclosures withstand dripping water, rain spray, splashing or water jets. Depending on the applicable standard, the chamber or test system controls nozzle design, flow rate, pressure, water temperature, spray angle, distance, exposure time and specimen movement.
The term covers more than one machine design. Available solutions include enclosed rain test chambers, drip apparatus, oscillating-tube systems, handheld spray nozzles, water-jet equipment, IPX9K chambers and integrated multi-level systems. The correct configuration depends on the exact standard, required exposure level, specimen dimensions and installation conditions. IPX7 and IPX8 immersion testing use different equipment and are handled separately.
Rain test chamber methods and water-jet levels
Choose the rain test chamber or water-jet system by the required exposure method before comparing chamber size, automation and optional functions.
Dripping Water
Controlled vertical or inclined water droplets for enclosure protection verification.
Rain Spray & Splash
Oscillating tubes or handheld nozzles apply water from defined directions.
Water Jets
Defined nozzles and flow rates evaluate resistance to water jets and powerful jets.
High-Pressure Jets
Higher-pressure and, for IPX9K, high-temperature exposure for demanding applications.
Industry-Specific Rain Tests
Dedicated nozzle arrangements for automotive and North American product standards.
Standards for rain and water-jet testing
Water-ingress standards can specify different nozzles, flow rates, spray angles and specimen positions. Select the equipment according to the exact product standard, edition and required test method.
| Standard | Main test scope | Typical applications | Related equipment |
|---|---|---|---|
| IEC 60529 | IPX1–IPX6 enclosure water-ingress testing | Electrical products, luminaires, appliances and enclosures | Drip, oscillating-tube and water-jet systems |
| ISO 20653:2023 Legacy reference: DIN 40050-9 (withdrawn) | Water-protection testing for road-vehicle electrical equipment | Automotive and EV components | IPX6K and IPX9K test systems |
| JIS D 0203 | R1, R2, S1 and S2 rain and spray methods | Automotive electrical and vehicle-mounted components | JIS D0203 rain test chamber |
| Applicable UL standards | Rain and 45° water-spray arrangements defined by the product standard | Outdoor luminaires and electrical products | UL rain test sprinkler apparatus |
DIN 40050-9 note: DIN 40050-9 has been withdrawn but may still appear in older automotive specifications and purchasing documents. For current road-vehicle electrical-equipment applications, use ISO 20653:2023 as the primary reference unless the customer, contract or certification body specifies otherwise.
Rain test chambers and individual water-test systems
Representative rain test chambers and individual test devices for common IEC, ISO, JIS and UL methods.
IPX1 IPX2 Rain Test Chamber
For vertical dripping and 15° inclined dripping tests on electrical and electronic enclosures.
- Customizable drip area and structure
- Rotating platform with 0° / 15° positioning
- Suitable for luminaires, appliances and enclosures
IPX3 IPX4 Oscillating Tube Test Chamber
Enclosed chamber for controlled rain spray and splash testing with an oscillating tube and rotating platform.
- Adjustable spray angle, flow and test duration
- Different oscillating tube radii available
- Chamber and turntable dimensions can be configured
IPX5 IPX6 Water Spray Jet Test Chamber
Dedicated water-supply and flow-control system for standard water-jet and powerful water-jet testing.
- 6.3 mm nozzle for IPX5
- 12.5 mm nozzle for IPX6
- Integrated water tank and circulating system
IPX9K High-Pressure Test Chamber
Enclosed chamber for high-pressure, high-temperature water jets applied from defined angles.
- 0°, 30°, 60° and 90° spray positions
- Rotating specimen platform
- Controlled pressure, temperature and exposure time
JIS D0203 1000L Rain Test Chamber
Automotive rain and spray chamber with dedicated nozzle arrangements for the JIS D 0203 test methods.
- Two rain nozzles for R1 and R2
- Forty spray nozzles for S1 and S2
- Programmable control and water recirculation
UL Rain Test Sprinkler and Apparatus
Movable nozzle-frame system for applicable UL rain and 45° water-spray test arrangements.
- Adjustable nozzle height and position
- Individual pressure indication
- Suitable for luminaires and outdoor electrical products
Comprehensive rain test chambers
A comprehensive rain test chamber combines several water-protection levels in one installation. It is suitable when multiple test methods are performed regularly and centralized water control offers practical laboratory benefits.
IPX1–IPX6 Comprehensive Rain Test Chamber
Combines IPX1/IPX2 dripping, IPX3/IPX4 oscillating spray and IPX5/IPX6 water jets in one installation.
- Centralized water supply and control
- Suitable for laboratories testing several product ratings
- Configurable chamber, turntable and spray-system dimensions
IPX5–IPX9K Water Spray & Jet Test Chamber
Integrates standard water jets, higher-pressure jets and high-pressure hot-water spray testing in an enclosed chamber.
- IEC 60529 and ISO 20653:2023 methods; older specifications may reference DIN 40050-9
- Automated flow, pressure, temperature and time control
- Suitable for automotive, EV, outdoor and industrial products
Handheld nozzles for rain and water-jet testing
Portable devices can suit large, fixed or irregular products, as well as laboratories with an existing controlled water-supply system.
IPX3 IPX4 Handheld Spray Nozzle
Compact spray-device option for samples that are unsuitable for an oscillating-tube chamber.
View nozzle
IPX5 IPX6 Water Jet Nozzle Set
Portable nozzle solution for controlled IPX5 and IPX6 testing or integration into a test room.
View nozzle setChoose an enclosed or open-type IPX9K system
Select an enclosed or open-type system according to the specimen dimensions, weight and available test area.
Enclosed IPX9K chamber
Open-type IPX9K system
Select by specimen and installation conditions
- Enclosed chamber: best for standard-size components, routine laboratory testing and compact water containment.
- Open-type system: best for large, heavy or irregular specimens that require more flexible positioning.
The open-type configuration requires adequate floor space, drainage and water containment around the test area.
How to choose a rain test chamber
Start with the applicable standard and required water-exposure level. Rain test chambers that look similar may use different nozzle designs, flow rates, spray angles and specimen positions.
| Test requirement | Test method | Recommended equipment | Typical use |
|---|---|---|---|
| IPX1 / IPX2 | Vertical and inclined dripping water | Dripping Water Test Apparatus | Lighting, appliances, electrical enclosures |
| IPX3 / IPX4 | Oscillating spray and splashing | Oscillating Tube Test Chamber | Electronics, luminaires, automotive parts |
| IPX3 / IPX4 | Manual spray nozzle | Handheld Spray Nozzle | Large, fixed or irregular specimens |
| IPX5 / IPX6 | Water jets and powerful water jets | Water Spray Jet Test Equipment | Outdoor enclosures and industrial products |
| IPX1–IPX6 | Drip, spray and water jets | Comprehensive Rain & Water Spray System | Multi-product laboratories and QA departments |
| IPX5–IPX9K | Water jets through high-pressure hot-water jets | IPX5–IPX9K Test Chamber | Automotive, EV and outdoor industrial products |
| JIS D 0203 | R1, R2, S1 and S2 rain/spray methods | JIS D0203 Rain Test Chamber | Automotive electrical and vehicle-mounted parts |
| Applicable UL methods | Rain and 45° water spray | UL Rain Test Apparatus | Outdoor luminaires and electrical products |
Confirm the standard
Provide the exact product standard, edition and required protection level.
Define the specimen
Confirm dimensions, weight, mounting orientation and whether it must operate during testing.
Review the laboratory
Check water supply, drainage, electrical power, floor space and sample-handling needs.
Common applications
Equipment configuration should reflect the actual product size, installation orientation and intended service environment.
Equipment verification before delivery
Before shipment, each configured rain test chamber or water-jet system is checked against the agreed functions and technical requirements. The verification scope depends on the selected model, options and order specification.
Standard and customized test systems
BONAD manufactures rain test chambers and water-jet systems and supports configuration selection according to the specimen, test method and installation conditions. The objective is to match the equipment to the application rather than simply supply a standard machine.
Available configuration options
- Chamber dimensions and usable test area
- Oscillating tube radius and spray coverage
- Turntable size, load and sample fixtures
- Flow, pressure and water-temperature control
- Automatic nozzle motion and test sequencing
- Powered specimen connections and protection
- Water storage, filtration and recirculation
- Open-type, enclosed or special installation structure
Rain test chamber FAQs
These answers provide general selection guidance. The final configuration should follow the exact applicable standard.
What is a rain test chamber used for?
A rain test chamber exposes a product or enclosure to controlled dripping water, rain spray, splashing or water jets to evaluate resistance to water ingress. The required nozzle, flow, pressure, angle and test duration depend on the applicable standard.
What is the difference between rain spray testing and water-jet testing?
Rain spray testing uses dripping water, oscillating tubes or spray nozzles to simulate rain and splashing. Water-jet testing applies a concentrated stream at a defined nozzle size, flow rate, distance and duration.
Can one system perform IPX1 through IPX6 testing?
Yes. A comprehensive system can combine IPX1/IPX2 dripping, IPX3/IPX4 oscillating spray and IPX5/IPX6 water-jet functions. It is most useful when several protection levels are tested regularly.
Can one chamber cover IPX5 through IPX9K?
Yes. A configured IPX5–IPX9K chamber can integrate standard water jets, higher-pressure jets and high-pressure hot-water exposure. Confirm the supported standards and test levels before ordering.
Is DIN 40050-9 still used for IPX9K testing?
DIN 40050-9 has been withdrawn, but it may still appear in older automotive drawings, specifications and purchasing documents. For current road-vehicle electrical-equipment applications, ISO 20653:2023 should normally be used as the primary reference. Confirm the required standard and edition before configuring the equipment.
When is a handheld nozzle more suitable than a chamber?
A handheld nozzle may be suitable for large, fixed or irregular specimens that cannot fit inside a chamber, or for laboratories that already have a controlled water-supply and drainage area.
What is the difference between enclosed and open-type IPX9K equipment?
An enclosed chamber contains the hot water and spray within a cabinet. An open-type system provides greater flexibility for large, heavy or irregular specimens but requires more installation space and suitable water containment.
Is JIS D 0203 testing the same as IEC 60529 IPX testing?
No. Both evaluate water resistance, but JIS D 0203 uses its own R1, R2, S1 and S2 methods and dedicated automotive test conditions. Equipment should be selected according to the required standard.
Is UL rain testing the same as IPX3 or IPX4 testing?
No. Applicable UL product standards may specify different nozzle layouts, water pressures, spray angles and distances. Confirm the exact UL or ANSI method before selecting the apparatus.
Does this equipment cover IPX7 and IPX8 immersion testing?
No. IPX7 temporary immersion and IPX8 continuous or pressurized immersion use different test equipment. They should be handled by dedicated water-immersion or pressure-immersion systems.
What information is needed for an equipment recommendation?
Provide the applicable standard, required test level, specimen dimensions and weight, mounting orientation, powered-testing requirement and available laboratory utilities.
Choose the right rain test chamber
Send the applicable standard, test level, sample size and sample weight. Our team will help compare individual devices, comprehensive rain test chambers and customized configurations.