The Yamato DH-650Z is a 216 L high-temperature forced-convection fine oven with a 500 °C ceiling and a CR5 program controller — the highest-temperature forced-air oven in Yamato's fine-oven line. Where the DH-612 stops at 360 °C, the Yamato DH-650Z extends precision forced convection to 500 °C using six wire heaters and heavy ceramic-fiber/rock-wool insulation. It is a capital instrument for high-temperature heat treatment that still needs fan-driven circulation.
Key Specifications
| Spec | Value |
| Model (focus) | Yamato DH-650Z (brochure model DH650) |
| System | Forced convection circulation (with exhaust damper) |
| Operating temperature range | Room temp +10 °C to 500 °C |
| Temperature control precision | ±0.3 °C (at 360 °C) |
| Temperature distribution precision | ±3.0 °C (at 360 °C) |
| Time to reach max temperature | Approx. 60 min |
| Interior material / size | Stainless steel / 600 × 600 × 600 mm |
| Exterior material / size | Electrogalvanized steel (SECC) / 1350 × 950 × 1300 mm |
| Insulation | Ceramic fiber, rock wool, heat-insulating block |
| Heater | Wire heater, 200 V 1.3 kW × 6 |
| Blower / fan motor | Propeller fan / 20 W (capacitor) |
| Exhaust port | ø80 mm (rear of body) |
| Heater control | SSR-controlled; PID/SSR by microcomputer |
| Sensor | K-thermocouple |
| Other functions | Key lock, calibration offset, external alarm output, temperature output, time-up output, RS485 communication |
| Safety | Over-current ELB, overheat-prevention device, self-diagnostics, temperature fuse, door switch |
| Shelf stages / pitch / load | 9 stages / 60 mm / 30 kg per shelf |
| Chamber capacity | 216 L |
| Power supply | 3-phase AC200V, 23 A, 50/60 Hz (US nominal 220 V) |
| Weight | Approx. 250 kg |
| Included | 3 stainless-steel wire shelves, 6 shelf pegs, operating manual, CR5 controller manual, warranty card |
Application Profile
The DH-650Z is for high-temperature heat treatment where forced-air circulation is still needed — annealing, high-temperature curing and baking, materials conditioning, and burn-in up to 500 °C. Unlike the natural-convection DR201 furnace-oven, the DH-650Z uses a propeller fan to circulate air for better uniformity at temperature (±3.0 °C distribution at 360 °C), and its six wire heaters plus heavy ceramic-fiber and rock-wool insulation carry the chamber to 500 °C. RS485 communication and external alarm/temperature/time-up outputs support integration into instrumented production lines.
Why the Yamato DH-650Z sits at the top of the DH range
The DH-650Z trades the DH-612's single-phase convenience for a 500 °C ceiling: 3-phase AC200V/23 A power, a six-element 7.8 kW-class wire heater bank, SSR control, and a ~250 kg insulated cabinet. It is the choice when a process demands both high temperature and forced-air uniformity; if 360 °C suffices, the single-phase DH-612 is far lighter and cheaper, and if uniformity can be relaxed toward 700 °C the natural-convection DR201 is the furnace-class option. (See laboratory-oven-selection.)
Frequently Asked Questions
What temperature range does the Yamato DH-650Z reach? Room temperature +10 °C to 500 °C. The spec table cites ±0.3 °C control precision and ±3.0 °C distribution at 360 °C.
Is it forced-air or natural convection? Forced convection — a propeller fan circulates air within the chamber, with a manual exhaust damper for venting.
Is the DH-650Z programmable? Yes. It uses the CR5 program controller (a dedicated CR5 controller manual ships with the oven) alongside PID/SSR microcomputer control.
What power supply does it require? 3-phase AC200V, 23 A (US nominal 220 V) — a dedicated 3-phase circuit is required; the ~250 kg cabinet needs rigging.
How is it different from the DH-612? The DH-612 is a single-phase 216 L oven to 360 °C; the DH-650Z is a 3-phase 216 L oven to 500 °C with six wire heaters and heavier high-temperature insulation.
What integration outputs does it offer? RS485 communication plus external alarm, temperature, and time-up output terminals for line integration.
Ordering & Configuration
quote-based. The DH-650Z is a capital high-temperature fine oven sold through a quote. At quote we confirm the 3-phase 200/220 V service and 23 A circuit, your process temperature and CR5 program profile within 500 °C, any RS485/output-terminal integration, and rigging and floor space for the 1350 × 950 × 1300 mm, ~250 kg cabinet with exhaust routing. Warranty terms are confirmed with the quote, and lead time is provided at quotation. Request a quote to configure the DH-650Z.
Where the DH-650Z fits: among Yamato fine ovens it is the high-temperature apex — DH-412/DH-612 (single-phase, 360 °C) and DH-832/DH-1032 (3-phase, 300 °C) sit below it, while the natural-convection DR201 (300–700 °C) trades forced-air uniformity for a higher furnace ceiling. Choose the DH-650Z when a process needs both 500 °C and fan-driven circulation.
