HALT & HASS Chamber | Accelerated Stress Testing Equipment

HALT (Highly Accelerated Life Testing) and HASS (Highly Accelerated Stress Screening) Chambers are advanced environmental test chambers designed to identify product weaknesses, improve durability, and ensure reliability under extreme conditions. Widely used in electronics, automotive, aerospace, consumer products, and industrial equipment, these chambers help manufacturers detect design flaws early, reduce failure rates, and enhance product life. They comply with MIL-STD, IEC, ISO, and JEDEC standards for accelerated stress testing.

By subjecting products to extreme temperature variations, vibration, and combined environmental stresses, they allow manufacturers to simulate real-world operational conditions in a compressed timeframe, enabling rapid product improvement and cost-efficient quality assurance.

Core Functions and Purpose

  • Thermal Stress Testing – Rapid temperature cycling to evaluate thermal tolerance and failure points.
  • Vibration Testing – Multi-axis vibration to simulate operational and shipping stresses.
  • Combined Environmental Testing – Simultaneous application of temperature, vibration, and humidity stresses.
  • Design Verification (HALT) – Identifies product weaknesses during development.
  • Production Screening (HASS) – Ensures finished products meet reliability and durability standards.

Product Types & Specifications

Based on Application

  • Electronics HALT/HASS Chamber – For circuit boards, sensors, and devices.
  • Automotive HALT/HASS Chamber – Tests control units, batteries, and electronic assemblies.
  • Industrial Equipment HALT/HASS Chamber – Ensures durability of machinery and protective housings.

Based on Size & Capacity

  • HALT/HASS Chamber – Compact, ideal for laboratory or R&D testing.
  • Walk-in HALT/HASS Chamber – Large-scale testing for bulky assemblies and high-volume production.

Common Specifications

  • Temperature Range: -70°C to +180°C (customizable).
  • Vibration Frequency: 5 Hz to 2 kHz, multi-axis.
  • Humidity Range: 10% to 95% RH (optional).
  • Capacity: 50 liters to several thousand liters.
  • Material: Stainless steel inner chamber with insulated outer body.
  • Control System: Advanced PLC or touchscreen interface with programmable stress profiles and data logging.

Our chambers are customizable to meet specific product and industry requirements, featuring advanced multi-axis vibration, rapid thermal cycling, and intelligent PLC-based controls for automated testing. Backed by nationwide delivery, competitive pricing, and expert after-sales service, Indian Tread Bird ensures consistent, reliable, and long-term performance for every testing application.

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FAQ's

Can the device under test (DUT) remain powered during testing?

Yes, many models offer power-on testing with real-time monitoring of device performance.


What temperature range do these chambers support?

Most chambers operate from -100°C to +200°C with rapid thermal cycling.


Which industries use HALT and HASS Chambers?

They are widely used in electronics, aerospace, automotive, telecom, and medical device industries.


What’s the difference between HALT and HASS?

HALT is used during product development to find design flaws, while HASS is for screening production batches for hidden defects.


What is a HALT and HASS Chamber?

A HALT and HASS Chamber is a testing system used to apply extreme thermal and vibration stress to products, helping detect design or manufacturing defects early.


What are the benefits of HALT/HASS Tests?

There are many benefits of performing HALT/HASS Tests :
It helps to reduce product development and design time. It helps to ensure product quality & reliability. It helps to boost customer confidence. It helps to speed up time in the market. It helps to increase profit margins. It reduces warranty costs.

Why HALT/HASS tests are performed?

HALT tests are performed to find product design weaknesses which help to make products more rugged.
HASS is used to find flaws and defects during production for monitoring the quality and consistency of a particular manufacturing process.

Why products fail & how performing HALT/HASS tests benefit them?

A statistical strength distribution exists for any product. Where the Product Strength and Field Stress Curves intersect in red, failures will occur. HALT/HASS  tests can cause the weaker components in the chamber to fail. The Commodity Intensity curve will be moved to the right by HALT and HASS. HALT/aim HASS's is to create a wide design margin or distance between the two curves, resulting in fewer field failures and a more reliable product.

What is a HALT chamber?

A highly accelerated life test (HALT), is a stress testing methodology for enhancing product reliability. ... HALT can be effectively used multiple times over a product's life time. During product development, it can find design weakness when changes are much less costly to make.

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