Innovation and Efficiency: Dunel's New IPX9k Test Machine

Dunel's New IPX9k Test Machine

Dunel IPX9k High-Pressure / High-Temperature Water Test System – Post-Launch Technical Overview

Officially released in mid-2024, the Dunel IPX9k test machine is a standalone system designed to perform IPX9k tests in full compliance with ISO 20653, IEC 60529 and related automotive standards (DIN 40050-9, VW 80000, etc.). The equipment has been developed with particular emphasis on energy efficiency, operational reliability and ease of integration.

Key Technical Feature: Tankless Hot-Water Generation

The most distinctive characteristic of the Dunel system is the complete elimination of the traditional insulated storage tank. Water is heated instantaneously and only in the exact volume required for each test cycle.

Documented benefits (from the original 2024 release data):

• Energy savings of up to 70 % compared with conventional tank-based machines (which typically keep 100–200 L of water at 80–85 °C continuously)

• Constant water temperature of 85 °C throughout the entire test sequence

• No standby thermal losses and no long pre-heating times

Control and Safety Features

• Programmable test timer with automatic pressure-pump shutdown at the end of the cycle

• Triple independent water-pressure safety switches for redundancy and precise control

• Variable-frequency-drive (VFD) motor for accurate flow regulation

• Built-in pressure gauge (manometer) on the front panel for real-time monitoring

Versatility

In addition to standalone operation, the system can feed an IPX9k nozzle array installed inside existing environmental or dust chambers. This configuration is especially useful when testing small components or electronic modules that must undergo combined water-jet and temperature/humidity cycles.

Main Technical Specifications

• Test pressure: 100 bar (nominal)

• Water temperature: 85 °C

• Flow rate: 10 L/min

• Nozzle configuration compliant with ISO 20653 (4 nozzles, 0°–90°–180°–270°, 100–150 mm distance)

• Full stainless-steel water circuit

Production and Market Status (November 2025)

• First batch of 20 units: fully delivered between June and September 2024

• Second batch: deliveries completed July–August 2025

• The machine is now in regular series production with typical lead times of 8–12 weeks

Summary

The Dunel IPX9k system combines full regulatory compliance with significantly reduced energy consumption through its tankless heating technology, automated safety features and chamber-integration capability. It is currently in routine use across European automotive Tier-1 suppliers and independent test laboratories.

For detailed technical documentation, calibration certificates or integration drawings, please contact: info@dunel.com