The Yamato IN-604W-220V is the window-and-shaker configuration of the IN604 programmable refrigerated incubator — the same 143 L stainless chamber holding −5 °C to +50 °C at ±0.3 °C (refrigerator continuous), fitted with an observation window and an internal shaker power hook-up so a compatible orbital shaker can run inside a temperature-controlled environment. That combination targets shaken microbial and cell culture at defined temperature. This is the 220V variant; the 115V sibling is the IN-604W-115V.
Key Specifications
| Model / capacity | Yamato IN604 (W config) — 143 L |
| Configuration | Observation window + internal shaker power hook-up |
| Circulation method | Forced circulation (axial fan) |
| Temperature control range | −5 °C to +50 °C |
| Adjustment accuracy | ±0.3 °C (refrigerator continuous); ±1.0 °C (cycle operation) |
| Distribution accuracy | ±1.0 °C (at 37 °C, refrigerator continuous) |
| Control system | PID by microcomputer; programmable, 32 steps |
| Setting / display | Digital up/down keys; orange LED display |
| Operation modes | Fixed temp, auto-start, auto-stop, program (32 steps, repeat) |
| Refrigerator | Air-cooled full-closed reciprocating compressor, 250 W |
| Cooling medium | R134a, 310 ±5 g |
| Heater | Iron-chrome, 550 W |
| Sensor | Platinum resistance bulb (Pt100Ω) |
| Interior / insulation | Stainless steel; expanded polystyrene (non-fluorocarbon) |
| Defrost | Manual ON / automatic OFF, cycle operation |
| Shelves | Stainless punching-metal; 15 kg/shelf; 30 mm bracket pitch |
| Cable port | Inner diameter 30 mm (right side) |
| Internal dimensions | 600 × 477 × 500 mm (W×D×H) |
| External dimensions | 710 × 645 × 913 mm (W×D×H) |
| Weight | Approx. 93 kg (base chamber) |
| Power supply | 220V, 50/60 Hz (base spec sheet rated AC100V; 220V per manifest) |
Application Profile
A refrigerated incubator holds setpoints at or below ambient without drifting upward as the room warms — the requirement behind BOD testing, culture near ambient, and low-temperature stability work. The W configuration extends that to shaken culture: an internal power hook-up lets an orbital shaker operate inside the temperature-controlled chamber, so suspension cultures, aeration-dependent microbial growth, and dissolution or extraction studies get controlled temperature and agitation from one instrument rather than a shaker in a separate incubated enclosure.
The base chamber specifications are unchanged from the standard IN-604: ±0.3 °C adjustment accuracy and ±1.0 °C distribution at 37 °C with the refrigerator running continuously, PID 32-step programming, and a SUS304 interior (avoid strong acids and halide-releasing samples). As always, load with the shelves and space samples so the forced-circulation uniformity is preserved.
Compatibility & Configuration
The W designation adds an observation window for viewing the load without opening the door, plus an internal receptacle to power a shaker — commonly a Yamato MK-series orbital shaker. Note that the shaker and window are catalog configuration options and are not itemized in the IN604/804 instruction manual spec table; confirm the exact window construction, the shaker model supplied (if any), and the internal outlet rating at quote. The closely related IN-604WMK ships with the MK-161 shaker installed, whereas this W SKU provides the hook-up for a shaker.
Frequently Asked Questions
What does the "W" in IN-604W mean? It denotes the window + shaker-hook-up configuration: an observation window and an internal power outlet so a compatible orbital shaker can run inside the incubator.
Does it include the shaker? This W SKU provides the internal power hook-up for a shaker; the IN-604WMK is the version that comes with the MK-161 shaker installed. Confirm shaker supply at quote.
Are the chamber specs the same as the standard IN-604? Yes — the 143 L chamber, −5 °C to +50 °C range, ±0.3 °C accuracy, R134a/250 W refrigeration, and 550 W heater are identical to the standard IN-604.
How accurate is temperature control? Adjustment accuracy is ±0.3 °C with the refrigerator in continuous operation; distribution is ±1.0 °C at 37 °C (no-load).
Ordering & Configuration
Add to quote or cart for a formal quotation. At quote we confirm supply voltage (this is the 220V SKU; order IN-604W-115V for 115 V), the window/shaker configuration and internal outlet rating, whether a shaker is included, and lead time.
At ~93 kg and 710 × 645 × 913 mm, plan a stable, ventilated location with condenser clearance. Warranty: per Yamato standard capital-equipment terms — confirmed at quote.
Yamato IN604 refrigerated incubator, 143 L — window/shaker options:
- IN-604W-220V (this product) — window + shaker power hook-up, 220V
- IN-604W-115V — same configuration, 115V
- IN-604WMK — window + MK-161 shaker installed
- IN-604 (base) — no window/shaker
