6 M³ Walk-in Sand & Dust Test Chamber IP Dust Protection Testing

Volume and Dimensions

Sample Size

Width: 36–39 inches (≈ 91.44–99.06 cm)

Height: 70–72 inches (≈ 177.8–182.88 cm)

Depth: 30–36 inches (≈ 76.2–91.44 cm)

Effective Internal Volume

Approx. 6 m³

Internal Chamber Dimensions

1500*1500*2500 mm (W*D*H)

Door Opening

1400*1500 mm (W*H)

External Dimensions

Approx. 2500*2300*3300 mm (W*D*H)

Functional Parameters

Working Chamber Temperature

RT +10°C to +70°C

Working Chamber Humidity

≤75% RH (not displayed or controlled)

Vacuum Degree

≤10 kPa

Dust Type

Talcum powder

Dust Particle Size

Passes through a 75 µm mesh (wire diameter 50 µm)

Dust Concentration

2–4 kg/m³

Airflow Meter

Mechanical type

Airflow Velocity

≤2 m/s

Time Control

Dust blowing period: 1 s–99 h (adjustable); test duration: 1 s–99 h (adjustable); vibration time: 1 s–99 h (adjustable)

Metal Mesh

Wire diameter ≥50 µm; mesh spacing ≥75 µm

Dust Circulation System

Equipped with a high-power mixed-flow fan and circulation duct; suction volume 80× test enclosure volume; flow ≤60× per hour; vertical airflow from top to bottom; uniform dust distribution; calibrated pressure gauge port

Sample Platform Load Capacity

≥200 kg

Dust Drying System

Equipped with a dust drying heater; controlled via touchscreen; enables drying without interrupting the test; ensures consistent dust concentration

Dust Replacement

Manual replacement using a vacuum cleaner; convenient and efficient

Chamber Configuration

Chamber Materials

Outer shell: 1.0 mm high-quality color steel plate, white baked finish

Insulation: 100 mm polyurethane foam

Inner chamber: 1.0 mm SUS3201 stainless steel

Sample Platform

Load capacity ≥200 kg

Doors

1) Manual double doors with large observation windows and dust wipers

2)Each door fitted with one multi-layer explosion-proof glass window

3)Sealed with double-layer high/low-temperature resistant silicone gaskets

Dust Blowing Principle

Vertical top-down airflow, programmable blowing duration

Dust Circulation System

1) Four funnels (one at each corner) with metal dust filters

2) Rotating dust brush beneath sample platform directing dust into funnels

3) Mixed-flow fan circulates dust uniformly in the chamber

4) Dust concentration: 2–4 kg/m³ (adjustable); dust settles slowly and evenly (<2 m/s)

Test Ports

Two Φ100 mm ports (one on each side) with sealing plugs and stainless-steel covers

Lighting

LED light installed on ceiling; controlled via control panel; lifespan ≥1000 h

Vacuum System

1) Single-stage rotary vane vacuum pump (2 HP)

2) Electronic differential pressure sensor with regulator valve

3) Includes vacuum pump, piping, U-type pressure gauge, air flow meter, and connectors

4) Copper and rubber tubing, air filter, and pressure regulator

5) Glass rotor-type flow meter for evacuation rate measurement

Dust Drying System

1) Internal heating system for dehumidification

2) Finned stainless steel heating tubes with perforated protective cover

3) Controlled by SSR + PID for precise temperature control

4) The drying process does not affect the testing procedure.

Control Cabinet

1) Independent control cabinet housing electrical components

2) Positioned for convenient operation

Additional Functions

Vacuum control for maintaining sub-atmospheric pressure or cyclic pressure variations

Control System

Controller

7-inch programmable LCD touchscreen controller (records temperature and humidity)

Program Execution

Supports 4 outputs executing 4 independent time programs simultaneously

Time Control

Each output point includes start and stop time settings

Control Modes

Independent or joint timing for dust blower, vibration, and total test time

Maximum Test Time

9999 minutes

Communication Interface

RJ45, RS485, or RS232 for remote monitoring and operation

Temperature Measurement

High-precision Class A PT100 platinum resistance sensor

Operating Conditions and Protection Devices

Operating Conditions

Ambient temperature: -5°C to +40°C

Relative humidity: ≤90% RH

Atmospheric pressure: 86–106 kPa

Power supply: 380V AC (±10%), 3-phase + PE, grounding resistance ≤4Ω

Frequency: 50Hz ±10%

Rated power: ≈26 kW (subject to final design)

Protection Devices

1) Air switch: overcurrent, overheat, and short-circuit protection

2) Heating system: leakage, short-circuit, and overload protection

3) Chamber overtemperature protection (dual safety modes)

4) Phase sequence and phase loss protection

5) Leakage protection

6) Three-color alarm light with audible/visual alarm and door interlock

7) Fault display with alarm code on LCD screen; main power cut off until fault cleared

8) Interlock system: prevents operation of refrigeration/heating if circulation fan is not running or overloaded

9) Self-diagnostic and safety functions: power failure protection, line break detection, temperature/humidity alarms, automatic operation, water shortage detection, timer (auto start/stop), backup operation, and help prompts

No.

Name

Origin / Brand

Unit

Quantity

1

Touch Screen

Kunlun Tongtai

pc

1

2

PLC

Wuxi / Xinje

set

1

3

AC Contactor

Chint

set

1

4

Intermediate Relay

Chint

pc

1

5

Indicator Light & Button

Shanghai / Hongbo

set

1

6

Alarm Buzzer

Shanghai / Hongbo

pc

1

7

Emergency Stop Switch

Shanghai / Hongbo

pc

1

8

Red Self-locking Button

Shanghai / Hongbo

pc

1

9

Overcurrent Protector

Chint

pc

1

10

Main Power Switch (MCB)

Chint

pc

1

11

Switching Power Supply

Taiwan / Mean Well

pc

1

12

Three-phase Asynchronous Motor

Taiwan / Jiuzhou

pc

1

13

Vibration Motor

China / Chuangxin

set

1

14

Vacuum Pump

China / Feiyue

pc

1

15

Air Flow Meter

China / LZT Juyi

pc

1