HALT & HASS Test Chamber

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Environmental chamber for highly accelerated life testing (HALT) and highly accelerated stress screening (HASS) applications

HALT (Highly Accelerated Life Testing) and HASS (Highly Accelerated Stress Screening) chambers help uncover product weaknesses quickly by combining extreme temperature shifts and multi-axis vibration. This approach accelerates failure detection, shortens development cycles, and improves the reliability of components before they go into production.

Standard Configuration

2 cable ports (ø100 mm), supplied with white hard rubber plugs and covers
Hour meter
2 observation windows (multi-layer heated insulated glass)
1 sample power control terminal
1 RS-485 communication port
1 RJ-45 Ethernet port
USB port
Emergency stop

Features

The cooling system uses liquid nitrogen spray technology, which allows the chamber to reach temperature change rates of up to 70 °C per minute under specific conditions. This rapid thermal cycling is essential for accelerated stress testing.
A three-axis vibration platform with six degrees of freedom applies complex motion to samples, simulating real-world mechanical stress from multiple directions at once.
The chamber is engineered to help teams quickly identify design limitations and failure thresholds, so improvements can be made early and development timelines can be significantly reduced.
High-quality pneumatic hammers deliver reliable vibration forces while consuming less compressed air, which lowers operating costs and extends the service life of critical components.

Technical Parameters

Model		CT05LN70	CT10LN70	CT17LN70
Chamber volume (m³)		0.5	1.0	1.7
Performance	Temperature range	－100℃～ 200℃
	Temperature fluctuation	2.0℃
	Max. temperature change rate	≥70℃/min (average under standard load condition over the range of -80℃ to 150℃ measured at air inlet) ≥60℃/min (average under standard load condition over the range of -100℃ to 200℃ measured at air inlet)
	Axial vibration	Tri-axial, six-degree-of-freedom
	Vibration energy	75gRMS (25℃～30℃, empty table)
	Vibration stability	±1gRMS (≤10gRMS) ±2gRMS (≤30gRMS) ±3gRMS (＞30gRMS)
	Control precision	±1gRMS (after stabilization for 1 min), start to vibrate from the minimum value 1gRMS, with increment of 1gRMS
	Frequency range (Hz)	5-10000
	Table size (mm)	610×610	910×910	1220×1220
Internal dimensions (mm)		W800×H800×D900	W1000×H1000×D1000	W1300×H1000×D1300
Power supply		380V (three phase four wire protective grounding wire)
Rated power (kW)		50	60	96
Cooling method		Atomization and spraying of liquid nitrogen (LN2)

Performance data are based on operation in an ambient temperature between 5 °C and 35 °C, with relative humidity up to 85% and cooling water temperature not exceeding 28 °C. All values were measured with the chamber empty.

What does Highly Accelerated Life Testing (HALT) involve?

HALT, or Highly Accelerated Life Testing, is a method that uses step-by-step increases in stress, like temperature extremes, vibration, and humidity, to intentionally push products to their limits. This approach helps uncover hidden design flaws, weak points, and performance margins very early in development, giving engineers a chance to refine and strengthen the design before it goes into production.

How does Highly Accelerated Stress Screening (HASS) differ from HALT?

HASS, or Highly Accelerated Stress Screening, is carried out during manufacturing rather than development. It applies controlled levels of stress, higher than normal working conditions but lower than HALT, to quickly screen batches of products and filter out early failures. This process ensures that only reliable units move forward to shipping and reduces the likelihood of defects in the field.

What makes our HALT & HASS chambers a good choice?

Our HALT&HASS testchambers combine a broad temperature range of –100 °C to 200 °C with rapid thermal cycling speeds up to 70 °C per minute. The vibration system can reach forces up to 75 Grms, making it suitable for a wide range of accelerated tests. Whether you’re working on design validation or production screening, these chambers deliver the flexibility and performance needed to improve product reliability while helping you optimize investment costs.

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