Misonics SonoDrive G5 ultrasonic generator, front three-quarter view with the touch screen showing the power setpoint

Product render of the SonoDrive G5. A photograph of the delivered unit will replace it.

What is fixed

Pairing	Matched to the rodSized to the resonator's power output — the two are quoted together
Frequency	Fixed25 kHz standard across the Solo 360 range
40 kHz option	AvailableOn the two shortest rods, and to order — on application
Rod power range it covers	800 to 1,500 WThe Solo 360 range, 340 to 1327 mm
Not interchangeable	Rods onlyThe multi-frequency VarioSonic G4 drives immersibles and plates, not rods

Specification

Frequency range	20 – 170 kHzThe platform tracks the range; built as a Solo 360 drive it is set to the rod and holds it
Power output	To 1,500 WSized to the resonator it drives
Output stage	IGBTMicrocontroller managed, fully automatic
Frequency control	AutomaticHolds the resonant point as the bath and the load change
Cooling	IndirectThe cooling air never contacts the electronics — built for a dirty plant room
Display	4.3″ colour touchOr a blind version with no screen, on application
Communications	RS485 (Modbus RTU)
Digital I/O	DB-25Control and monitoring, plus five DC-isolated 24 V inputs so a PLC can set the power
Data	SD card, USB, EthernetOn-board logging
Protection	Over-temperature, over-current, short circuit, no-loadPlus the safety interlocks
Enclosure size	105 × 155 × 390 mmW × H × D — bench, 19-inch rack, DIN rail or wall
Supply, IP rating, ambient	Confirmed at quotationStated against the build, with the rod it is matched to

What the control actually does

Sweep	Breaks up standing waves and evens out the energy distribution.
Pulse or continuous	Selectable, with on and off times set on the panel.
Wave shape	Triangular, saw-tooth or random, each with its own parameters.
Boost	Extra drive on demand for stubborn contamination.
Automatic degas	Drives dissolved air out of a fresh bath before the work goes in.
Timed start	Real-time clock with six time channels — the bath can degas before the shift.
Constant output	Holds the set power as temperature, liquid level and work load change.
Monitoring	Messages, warnings and faults on the screen; run data to SD, USB or Ethernet.
Integration	RS485 Modbus RTU to PLC and HMI, five isolated 24 V inputs, 19-inch cabinet mounting.

SonoDrive G5

Fixed frequency · matched for power output

A rod resonator is not driven by a general-purpose generator. The SonoDrive G5 is specified against the rod it runs — its power output matched to the resonator, its frequency fixed rather than swept across bands.

Start from the rod, not the generatorPick the length your working depth allows and the SonoDrive follows from it. If you have not chosen a rod yet, do that first — it decides the generator.

Pick a rod length →

Only after a generator? Read this firstOpen

We do not sell a generator on its own to drive transducers we have not specified, and we do not sell transducers to run on a generator we did not supply. It is not a policy about paperwork — the two are tuned to each other, and an unmatched pair usually means no cavitation, a drive running hot, and both halves replaced inside a year.

There is no warranty on an unmatched pair. If you already own one half, tell us what it is and roughly when it went in and we will tell you where you stand before you spend anything.

Why that is — the five things that have to line up →

Price on application

Quoted with the rod resonator it drives

See the rod range

The generator follows the rod. Power is sized to the resonator and the frequency is set to it, so the two are specified and quoted together rather than picked separately. Supply, IP rating and ambient limits are stated against your build.

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

How it is sold

The generator and the transducer are bought together

A generator is tuned to the transducers it drives. Four things have to line up: the frequency the generator tracks, the total capacitance of the array wired to it, the impedance and phase that array presents once it is in the liquid, and the voltage across the group under load. We specify all four against each other, so the pair is quoted, built and commissioned as one item.

What goes wrong when they are not matched

The label is not the loadTwo transducers both marked 40 kHz are not the same electrical load — they differ in capacitance, in phase, and in how the assembly moves. A generator is tuned to a particular array, not to a number on a plate.

The tuning is inside the generatorA matching network — transformer ratio and a tuning inductance — cancels that array's capacitance so the drive sees a near-resistive load at resonance. Change the array and the power goes into heat and reactive current instead of cavitation.

Tracking only has a windowThe generator hunts for resonance within a narrow band around its design frequency. A stack outside that window is never found: the drive sits off resonance, runs hot, and trips or limits.

Power has to match both waysOverdriven, the ceramic depoles and the bond lines and the radiating face fail years early. Underdriven, there is no useful cavitation at all — a bath that looks like it is running and does not clean.

The cable counts tooCable capacitance sits inside the tuned circuit, which is why the length is quoted with the set and should not be extended on site.

A new generator will not rescue an old set. Transducers age — output falls away, the resonant point drifts and the impedance climbs — so an older array is no longer the load a new drive was tuned for. A set of mixed ages is worse again: the weakest element pulls the rest off tune and the drive spends its power hunting for a resonance that has moved. What you get is a generator running hot or dropping out, a bath cleaning unevenly, and transducers failing earlier than they should — and from the outside there is no way to tell which end is at fault, so you end up replacing both anyway.

There is no warranty on an unmatched pair. Equipment warranty covers a generator and transducers supplied and matched by Misonics. A Misonics transducer driven by a generator we did not supply, or a Misonics generator fitted to transducers we have not specified, is not covered — we have no way to characterise the combination, so we will not stand behind it. If you already own one half, tell us what it is and roughly when it went in, and we will tell you where you stand before you spend anything.