The MK-161-220V is a Yamato compact benchtop shaker with a rare feature at its size: three switchable shaking motions — reciprocating (linear), oval (elliptical), and rotation (orbital) — selectable by a manual switch on one platform. Speed is adjustable 20-200 rpm with a digital timer, and the DC-brushless drive handles up to 5 kg of racks and containers on a small footprint. This is the 220V variant; the 115V sibling is the MK-161-115V.
Key Specifications
| SKU | MK-161-220V |
| Type | Compact benchtop shaker, 3-mode switchable |
| Shaking modes | Reciprocating ⇔ oval (elliptical) ⇔ rotation — serial switching via manual selector |
| Rotation shake stroke | 30 mm |
| Reciprocating shake stroke | 30 mm |
| Speed range | 20-200 shakes/min (rpm) |
| Speed adjuster | Dial with digital display |
| Timer | Digital, 0.1 min (6 sec) to 99.9 min, plus continuous |
| Motor | DC brushless motor |
| Max load | 5 kg (including racks and containers) |
| Shaking table (platform) | Main 300 W × 254 D mm; additional table 290 W × 250 D mm |
| External dimensions | 350 W × 300 D × 150 H mm |
| Weight | ~15 kg |
| Safety | Motor protective circuit; 2 A power fuse |
| Voltage / power | 220V, 50/60 Hz (spec sheet rated AC100V, 0.6 A) |
Note: The MK-161 is a shaker only — it has no integral heating or incubation chamber. Set it inside a separate incubator when temperature-controlled shaking is required.
Application Profile
The three switchable motions make one compact platform cover mixing tasks that usually need separate shakers:
- Reciprocating (linear) — aeration of microbial and cell cultures in flasks; wash steps
- Oval / elliptical — gentle, thorough mixing of suspensions and staining/destaining trays
- Rotation (orbital) — general orbital mixing of flasks, tubes, and plates
- Solubility, extraction, and dissolution work where motion type affects mixing efficiency
- Method development — comparing shaking modes on one instrument at matched speed
- Space-constrained benches and inside incubators — the small 350 × 300 mm footprint and 15 kg mass suit tight stations
At 20-200 rpm with a 30 mm stroke and 5 kg capacity, the MK-161 targets small-to-mid batch mixing rather than high-throughput platform shaking. See shaking-incubator-selection guidance for matching motion type, orbit, and speed to the application.
Design Architecture
A DC-brushless motor drives the platform through a mechanism whose motion is set by a manual selector — the same unit switches serially between reciprocating, oval, and rotation without changing hardware. Both the rotary and reciprocating strokes are 30 mm. Speed is set on a dial with digital display and holds across the 20-200 rpm range; the operator initiates fine adjustment after loading because the initial speed can vary with load. A digital timer covers 0.1 min to 99.9 min plus continuous running, with pause/resume. Protection is provided by a motor protective circuit and a 2 A power fuse. The base platform (300 × 254 mm) accepts an additional table (290 × 250 mm) for expanded vessel layouts.
Frequently Asked Questions
What shaking motions does the MK-161-220V offer? Three switchable motions on one platform — reciprocating (linear), oval (elliptical), and rotation (orbital) — selected by a manual selector without changing hardware.
What speed and load can it handle? It runs 20-200 shakes/min (rpm) and carries up to 5 kg including racks and containers, with a 30 mm stroke on both the rotary and reciprocating modes.
Does the MK-161 heat or incubate samples? No. It is a shaker only, with no integral heating or incubation chamber. For temperature-controlled shaking, place it inside a separate incubator.
Which voltage is this SKU? This is the 220V variant (the MK161 spec sheet is rated AC100V, 0.6 A). Order the MK-161-115V for a 115V supply.
How long can a run be timed? A digital timer covers 0.1 min (6 sec) to 99.9 min plus continuous running, with pause and resume.
Ordering & Configuration
In the box: power fuse, operation manual, and warranty card. (Conical flasks and additional shaking tables are optional accessories.)
Confirm voltage. This SKU is the 220V variant (the MK161 spec sheet is rated AC100V, 0.6 A); order MK-161-115V for 115V supply.
Confirm platform and vessel needs. Specify flask clamps, racks, or the additional shaking table for your vessel mix — these are ordered separately.
Pair with an incubator if needed. For temperature-controlled shaking, place the MK-161 inside a separate incubator — the shaker itself provides motion only.
Confirm at quote: supply voltage, required shaking mode(s), platform/clamp accessories, load weight, and lead time.
Warranty: Per Yamato standard terms — warranty card included.
Yamato MK161 compact shaker:
- MK-161-115V — 115V
- MK-161-220V (this product) — 220V
