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Misonics PS 620 — 20 L Ultrasonic Cleaner

The long-part bench · 20.7 L · 700 W swept 40 kHz · heated

Talk to an engineerCall 1300 647 664
Misonics PowerSonic 620 benchtop ultrasonic cleaner — Three-quarter viewClick to enlarge

Three-quarter view

The long-part bench
$2,795 AUD ex GST

The longest tank on the benchtop: 500 mm of stainless with a 440 mm basket for the loads smaller tanks turn away… full pitch below.

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Delivered within Australia. Outside Australia, request a delivered price.

In the box
  • ✓ Stainless perforated basket (440 × 250 × 100 mm)
  • ✓ Tank lid
  • ✓ 1 m drainage hose
  • ✓ 3 m power lead, standard plug
  • ✓ Manual · 12-month warranty
Download the PS 620 brochure (PDF)
Ships Australia-wide · freight quoted at checkout · spare parts held locally
Specification

Full specification — PS 620

CAPACITY & DIMENSIONS
Tank Volume Capacity20.7 L
Total Solution Volume (incl weir)15 L
Useful Volume11 L
Useful Measurement (LxWxD)440×250×100 mm
Tank – Length500 mm
Tank – Width300 mm
Tank – Internal Depth150 mm
Tank – Working Depth100 mm
Basket – Length440 mm
Basket – Width250 mm
Basket – Wall Height100 mm
Maximum Load Capacity4.5 kg
Overall Unit – Length590 mm
Overall Unit – Width405 mm
Overall Unit – Height275 mm
Machine Weight (Dry)11.8 kg
Machine Packed Weight16 kg
Packaging Dimensions700×540×400 mm
Tank MaterialSS304 – 0.7mm
ULTRASONIC SYSTEM
Ultrasonic Power700 W
Ultrasonic Power Density34 W/L
Ultrasonic Frequency40 kHz
Multi-FrequencyNo
Number of Generators1
Number of Resonators1
Power AdjustableLow/Med/High
Load SensingNo
Degas FunctionYes
Sweep FunctionYes
HEATING SYSTEM
Heating Power0.3 kW
Heating Element TypeSilicone rubber heater pad
Heating Voltage240V AC
Temperature RangeAmbient–80 °C
Safety ThermostatYes
Insulated TankNo
CONTROL & SAFETY
Control Panel TypeMembrane Touch
Programmable CyclesNo
Stored Recipes1
Power InterlockNo
Non-Drip EdgeYes
Lid TypeRemovable Plastic
Remote AccessNo
ELECTRICAL & POWER
Power Supply240V / 50Hz / 1-Phase
Wiring Requirements1P+E+N
Power Cable Provided3 m IEC lead c/w plug
Socket Requirement240 V 10 A 3-pin socket
Over-Current Fuse3 A
POWER DRAW
Max Power Consumption1000 W
Circuit Breaker – Full Load10 A
COMPLIANCE & WARRANTY
Machine Warranty12 months
Printed ManualYes
Online ManualYes
Electrical Design StandardAS/NZS 3100

Specification per the published policy · download the PS 620 brochure (PDF)

Tank volume is the whole tank, including the pockets that carry the resonators, heaters and platform. Useful volume is the working volume your parts sit in. All specifications — incl. dimensions, ultrasonic power and volume — are confirmed at quotation.

Why this machine

The long-part bench

The longest tank on the benchtop: 500 mm of stainless with a 440 mm basket for the loads smaller tanks turn away — full clinic instrument trays, batch electronics, long precision parts, the home restorer's bigger jobs. 700 watts holds intensity across the larger volume. When the question is "will it fit?", this is the answer.

Applications

Who buys the 620 — click your trade for the full application guide

Medical & Dental

Hinged instruments, burs, forceps and trays cleaned to pre-sterilisation standard — cavitation clears the box joints and serrations that brushes miss and audits find.

Veterinary

Surgical kits, dental scalers and clipper blades — one benchtop tank absorbing the whole clinic's dirty work.

Electronics Repair

Liquid-damage recovery and flux removal — clean under components where swabs never reach.

Home Workshop & Bicycle

Bicycle drivetrains, home injector and carby servicing, restoration parts — the serious hobbyist's upgrade from the parts bucket.

The difference you cannot see

Industrial BLT transducers — not hobby discs

Every PowerSonic is driven by bolt-clamped Langevin transducers — the same construction as our industrial machines — delivering more real power into the bath and lasting years past the glued disc elements in lookalike tanks. Add swept frequency, a true degas mode and three power levels, and this is a small machine with industrial manners. It is why a PowerSonic outcleans cheaper tanks on day one, and why it is still doing it on day one thousand.

A 40 kHz bolt-clamped Langevin transducer — hex bolt through the steel back mass, ceramic stack under the black band, copper terminals, aluminium horn
At the controls

Set it, lid on, walk away

Timer — to 99 minutes

Five-minute instrument cycles to long soak jobs, unattended.

Heat — to 80 °C, separate control

Thermostat-protected; heat the bath without running sonics, ready for the first basket.

Power — Low / Med / High

Delicate stones on Low, workshop steel on High. Intensity matched to the part, not averaged.

Sweep

Continuously varies the frequency — even cleaning across the basket, no hot spots, kinder to the tank.

Degas

Pulses the drive to purge dissolved air after a fresh fill — full cleaning power from the first cycle.

Drain valve + hose

Bath changes without lifting and tipping — the detail you appreciate weekly.

Chemistry

Approved chemistry

Do not run caustics or acids in a PowerSonic. Strip chemistry is for the industrial machines. The three products below are the ones approved for these tanks.
General degreasing

FX Degreaser

Oils, grease and grime — home workshop, bicycle drivetrains, general parts. 5% in water, works from warm.

Product, SDS & TDS →Medical · dental · veterinary

AquaVantage 815 GD

Instrument-grade cleaning for practice reprocessing — supplied in 10 L and 20 L packs sized for clinics.

Product, SDS & TDS →Electronics · jewellery · watches

AquaVantage 1696 GD

Near-neutral at pH 7.9–8.3 — flux and handling soils off boards, skin oils and polish residue out of settings and watch parts, without touching the substrate.

Product, SDS & TDS →
Questions

Before you buy

What cleaning solution should I use?
Two rules. First: never plain water alone — it cavitates poorly and cleans worse. Second: never caustics or acids in a PowerSonic — these are precision benchtop tanks, and the approved chemistry list is deliberately mild: FX Degreaser for general degreasing, Brulin 815 GD for medical and veterinary instrument work, Brulin 1696 GD for electronics, jewellery and watch parts. All dose from the bottle at label rates.
Can parts sit on the tank floor?
No — always in the basket. Parts on the floor damp the transducers, wear the tank and clean poorly. The basket suspends the load in the strongest part of the field; it ships in the box.
How long does a cycle take?
Most loads run 5–15 minutes. Heavily fouled parts may take a second cycle or a warmer bath rather than a longer one — temperature does more than time once chemistry is right. The timer runs to 99 minutes for soak-style jobs.
Does it sterilise instruments?
No — and nothing ultrasonic does. It cleans to pre-sterilisation standard: cavitation removes the soil load that would otherwise shield organisms in the autoclave. Clean ultrasonically, then sterilise; that is the compliant sequence.
Will it damage delicate items?
Run delicate work on Low power and correct chemistry. Solid jewellery, most stones, steel and glass are routine. Avoid: soft porous gems (pearls, opals, emeralds with fillers), loose plating and lacquered finishes — ask us if unsure, it is a two-minute phone call.
What are sweep and degas for?
Sweep continuously varies the frequency so cleaning power distributes evenly — no hot and dead spots, kinder to the tank. Degas pulses the ultrasonics to drive dissolved air out of a fresh fill; run it for a few minutes after every water change and the bath cleans at full strength.
Why BLT transducers?
The industrial bolt-clamped Langevin transducers in every PowerSonic deliver more power into the bath and last far longer than the glued disc elements in hobby-grade machines. It is the main reason a PowerSonic outcleans lookalike tanks at half the price — and outlives them.
What's in the box?
Tank lid, stainless perforated basket, 1 m drainage hose, 3 m power lead with standard plug, and the manual. Fill, dose, clean — nothing else to buy on day one.
What about delivery and warranty?
Shipped Australia-wide, tested and tagged by a licensed electrician before despatch, backed by a 12-month warranty and local support with spare parts held here. Freight quoted at checkout.
Complete the purchase properly

Machine, matched chemistry and the right basket

Chemistry for this machineFX Degreaser · Brulin 815 GD · Brulin 1696 GD — mild aqueous only, no caustics or acidsSee it prove itselfDocumented processes across the platform
Related

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PS 610

PS 610

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Who stands behind it

Supplied and supported by Misonics

Specified for Australian conditions, stocked in Melbourne and supported here — parts, service and the people who know the cycle. Sold direct and through our distribution partners.

Talk to an engineerCall 1300 647 664
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