Hirayama PC-R8D Dual HAST Chamber — Two Independent Test Vessels
The Hirayama PC-R8D dual HAST chamber is the two-vessel configuration of the PC-R8 series, distributed in North America by Hastest Solutions. The PC-R8D houses two completely independent HAST test chambers — each with its own steam generator, controller, and exhaust system — within a single floor footprint. This doubles parallel throughput for high-volume semiconductor package qualification, automotive electronics validation, and reliability testing labs without doubling floor space.
Available in two configurations: PC-304R8D (34.5 L per chamber) and PC-422R8D (84.4 L per chamber). Each chamber operates independently, so two different test conditions, programs, or specimen sets can run simultaneously.
PC-R8D Specifications
| Parameter | PC-304R8D | PC-422R8D |
|---|---|---|
| Test chambers | 2 independent vessels per unit | |
| Test chamber size (each) | φ300 × D522 mm (34.5 L) | φ420 × D657 mm (84.4 L) |
| Effective chamber size (each) | φ220 × D350 mm | φ340 × D475 mm |
| Temperature range (100% RH) | 105.0 – 151.4 °C | 105.0 – 133.3 °C |
| Temperature range (85% RH) | 110.0 – 157.5 °C | 110.0 – 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 | W900 × D1100 × H1780 mm | |
| Weight | 475 kg | |
| Power supply | AC 220 / 230 / 240 V, 50/60 Hz, single phase (×2 cords) | |
| Voltage application terminals (each) | 20 std (60 max) | 20 std (100 max — special configuration above 80) |
| Chamber material | SUS316L stainless steel, electrolytic polished | |
When to Choose Dual over Single-Vessel
The PC-R8D is the right choice when:
- Your lab runs continuous high-throughput qualification and a single chamber creates a bottleneck
- You need to compare two specimen lots under identical environmental controls in parallel
- You want redundancy — if one vessel needs maintenance, the other continues operating
- Floor space is at a premium and a two-chamber footprint is worth the cost premium
For single-chamber needs at lower capital cost, see the PC-R8 single-vessel HAST chamber.
Same Hirayama Engineering Standards as PC-R8
The PC-R8D inherits all PC-R8 engineering features: dual-vessel structure within each test chamber, color touch panel, two control methods (unsaturated HUM and saturated STD), three exhaust modes, electrolytic-polished SUS316L stainless steel construction, electric clamp door locking, slide-out sample tray, and RS-232C communication for centralized control of up to 16 chambers via HAST-NET software. The PC-R8D meets IEC 60068-2-66, JIS C 60068-2-66, and is suitable for JEDEC JESD22-A110 reliability qualification.
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 for capacity overflow or pre-purchase validation
- Trusted by semiconductor, automotive, aerospace, and US Navy customers since 2002
Frequently Asked Questions
Can the two chambers in PC-R8D run different test conditions simultaneously?
Yes. Each chamber has its own controller, steam generator, and exhaust system, allowing fully independent test conditions, durations, and programs.
Does PC-R8D require twice the utility connections?
The PC-R8D requires two power supply cords (one per chamber) but shares a single drainage system. Power requirement is approximately 2.5 kW per chamber for PC-304R8D, 3.2 kW per chamber for PC-422R8D.
What is the difference between PC-R8D and PC-R9D?
The PC-R9D is the next-generation dual chamber with USB data recording, remote operation software, automatic cleaning mode, CE Marking, and China SELO approval. PC-R8D shares identical chamber capacity, temperature/humidity/pressure ranges, and IEC 60068-2-66 compliance at a more economical price point.
Request a quote on the Hirayama PC-R8D dual HAST chamber: call (408) 945-7861 or email contact@hastest.com. Hastest Solutions, 2139 S. 10th St., San Jose, CA 95112.



