Hirayama PC-R8 Series HAST Chamber — Single-Vessel Configuration
The Hirayama PC-R8 HAST chamber is a precision Highly Accelerated Stress Test system manufactured by Hirayama Manufacturing Corporation and distributed in North America by Hastest Solutions Inc. Available in two test-chamber capacities — the PC-304R8 (34.5 L) and PC-422R8 (84.4 L) — the PC-R8 series delivers stable unsaturated and saturated HAST conditions for semiconductor package qualification, MEMS reliability, and electronic component accelerated stress testing per JEDEC JESD22-A110, IEC 60068-2-66, and JIS C 60068-2-66.
Dual-Vessel Structure for Stable Test Conditions
The PC-R8 series adopts a round-shape dual-vessel structure where the test chamber and steam generator are mechanically independent. This separation reduces mutual temperature influence between the dry-bulb test space and wet-bulb steam generator, producing more stable temperature and humidity conditions than single-vessel HAST designs while preserving the full effective area of the test chamber. The chamber interior is constructed from electrolytic-polished SUS316L stainless steel for corrosion resistance and easy decontamination between test runs.
PC-R8 Specifications
| Parameter | PC-304R8 | PC-422R8 |
|---|---|---|
| Test chamber size | φ300 × D522 mm (34.5 L) | φ420 × D657 mm (84.4 L) |
| Effective chamber size | φ220 × D350 mm (12 L) | φ340 × D475 mm (40 L) |
| Temperature range (100% RH) | 105.0 – 151.4 °C | 105.0 – 133.3 °C |
| Temperature range (85% RH) | 110.0 – 157.5 °C | 105.0 – 140.0 °C |
| Temperature range (65% RH) | 118.0 – 162.5 °C | 118.0 – 150.0 °C |
| Humidity range | 65% RH – 100% RH (±3% RH at 85% RH) | |
| Pressure range | 0.019 – 0.393 MPa | 0.019 – 0.208 MPa |
| Temperature control accuracy | ±0.5 °C | |
| Outside dimensions | W709 × D950 × H1674 mm | |
| Weight | 260 kg | 280 kg |
| Power supply | AC 220 / 230 / 240 V, 50/60 Hz, single phase | |
| Voltage application terminals | 20 std (60 max) | 20 std (100 max) |
| Communication | RS-232C standard, HAST-NET software optional | |
| Continuous operation | Up to 500 hours | |
| Chamber material | Stainless steel SUS316L, electrolytic polished | |
Two Control Methods, Three Exhaust Modes
The PC-R8 supports both HUM (unsaturated) control for IEC 60068-2-66 / JIS C 60068-2-66 compliance with adjustable humidity from 65–100% RH, and STD (saturated) control for traditional 100% RH wet-saturation testing equivalent to a conventional pressure cooker. Three exhaust modes — slow cooling with humidity maintained, cooling with moisture kept, and quick exhaust — let engineers tailor post-test sample handling to specimen sensitivity.
Why Buy from Hastest Solutions
- Authorized North American Hirayama distributor since 2002
- U.S.-based installation, calibration, and engineering support from San Jose, California
- OEM Hirayama spare-parts inventory in California
- ISO/IEC 17025 accredited contract HAST testing available before chamber purchase
- 24+ years of HAST application engineering across semiconductor, automotive, aerospace, and energy industries
Frequently Asked Questions
What is the difference between PC-R8 and PC-R9?
The PC-R9 series is the next-generation successor to PC-R8, adding USB data recording, remote operation software, automatic cleaning mode, EU compliance (CE/S-Mark), and China SELO approval. Both share identical chamber dimensions, temperature/humidity/pressure ranges, and IEC 60068-2-66 compliance. Choose PC-R8 for cost-optimized procurement when next-gen connectivity is not required.
What standards does the PC-R8 meet?
PC-R8 unsaturated control mode meets IEC 60068-2-66 and JIS C 60068-2-66. The chamber is also commonly used for JEDEC JESD22-A110 highly accelerated temperature/humidity stress testing.
Can the PC-R8 perform PCT (saturated) testing?
Yes. STD saturated mode maintains 100% RH from start of test, equivalent to conventional pressure-cooker test (PCT) per the older JEDEC JESD22-A102 method.
Looking for a dual-chamber configuration? See the PC-R8D dual HAST chamber for double the throughput in a single footprint, or browse the full Hirayama HAST Chambers range.
Request a quote on the Hirayama PC-R8: call (408) 945-7861 or email contact@hastest.com. Hastest Solutions, 2139 S. 10th St., San Jose, CA 95112.
