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Service, repairs & breakdowns
Independent service for Topsinn fume extractors
Diagnosis that finds the actual fault, not just a filter sale. Scheduled maintenance, breakdown attendance and phone support for extraction on plate lasers, tube lasers and profile cutting tables.
Scheduled maintenance
Extraction is the easiest thing on a laser cell to ignore until it fails. A scheduled service is cheap, quick, and stops the failure that takes the machine with it. A typical visit covers:
- Differential pressure recorded and trended against previous visits — the single best indicator of filter condition
- Cartridge inspection for blinding, media damage, oil contamination and burn marks
- Pulse-jet sequence verified valve by valve, with timer and interval settings checked
- Compressed air supply checked for pressure, and critically for water and oil carry-over
- Solenoid and diaphragm condition, air receiver drained and drain function verified
- Fan motor current draw measured against nameplate, plus bearing noise and vibration check
- Door and dust bin seals inspected for leaks that quietly destroy your suction
- Ducting, hoods and blast gates checked for blockage, damage and settled dust
- Airflow at the machine measured, so you know what you are actually getting
- Written report with findings, wear items due, and what to budget for next
Breakdown attendance
Extractor down and the laser with it? Call us. Before we send anyone we will run a short phone diagnosis — a surprising proportion of extraction faults are compressed air, a tripped overload, or a pulse timer setting, and can be resolved in ten minutes without a service call.
If it does need attendance, you will get an honest view on whether that is the fastest route or whether a part shipped overnight with instructions gets you cutting sooner.
Filter changeouts
Done properly: unit isolated and locked out, old cartridges bagged and removed without redistributing the dust you just spent money capturing, seals and seats inspected, new cartridges seated and torqued correctly, pulse system verified, and a fresh clean-filter differential pressure baseline recorded so you can trend from a known starting point.
Fault diagnosis
The most common extraction complaints and what usually causes them. If you are troubleshooting before you call, start here.
| Symptom | Common causes worth checking first |
|---|---|
| Loss of suction at the table | Blinded cartridges; pulse-jet not cleaning; blast gate or damper closed or partly shut; duct blockage or collapsed flexible; door or dust bin seal leaking; fan rotating backwards after an electrical change; full dust bin. |
| Differential pressure high and not recovering | Cartridges at end of life; pulse system inoperative; insufficient compressed air pressure or volume; oil or moisture in the air line has glazed the media; pulse interval set too long for the dust loading. |
| Pulse-jet not firing | No compressed air; timer board failure or wrong settings; failed pilot or main solenoid coil; ruptured diaphragm; blocked pilot port; control fuse or supply fault. |
| Pulse-jet firing continuously | Timer board fault; stuck solenoid; incorrect on-demand pressure setpoint; differential pressure sensor or tubing fault reading falsely high. |
| Compressed air consumption climbing | Leaking diaphragm passing air continuously; leaking fittings or blow pipe joints; receiver drain stuck open. |
| Filters blinding much sooner than expected | Oil or moisture in the compressed air; wrong media for the material being cut; extractor undersized for the machine; pulse cleaning ineffective; galvanised or coated material generating a very fine sticky fume; no pre-separator on a high dust load application. |
| Motor overload tripping | Fan labouring against a blocked filter; overload set incorrectly; supply voltage or phase problem; bearing failure; impeller build-up causing imbalance. |
| Excessive noise or vibration | Bearing wear; dust build-up on the impeller; loose mounts or anti-vibration feet; duct resonance; loose panel or door. |
| Dust escaping from the cabinet | Door seal or dust bin seal failure; cartridge not seated correctly; split or holed cartridge media; damaged tube sheet gasket. |
| Sparks or burn marks in the filter | Insufficient duct run or no spark arrestor for the application; cutting a material that throws hot particulate; excessive combustible dust accumulation. Stop and get this assessed properly — it is a fire risk, not a nuisance. |
Installation, relocation & commissioning
Moving premises, adding a machine, or fitting extraction to a laser that came without it.
Moving a unit
Disconnection, transport preparation, re-siting, re-connection and re-commissioning. Site moves are the most common time for an extractor to come back up running backwards, under-ducted, or on the wrong overload setting — all of which show up as poor cut quality weeks later.
Ducting & hoods
Duct runs, transitions, blast gates and table connections. Duct design decides how much of the extractor’s rated airflow actually reaches the cutting zone — a badly routed system can throw away a third of it before you cut a single part.
Commissioning & testing
Rotation check, current draw against nameplate, pulse sequence verification, clean-filter differential pressure baseline, and airflow measured at the machine so you have a documented starting point to trend against.
Australian supply voltage
Imported extraction units are frequently specified at 380 V three-phase 50 Hz, while Australian mains three-phase supply is nominally 400/415 V 50 Hz. The frequency matches, and equipment is often rated to accommodate the difference — but it is worth confirming against the actual nameplate on your unit, and worth checking that motor overload settings were set for the real measured full-load current rather than left at a factory default. We check this as part of commissioning. If you are unsure, have it verified by a licensed electrician; all fixed electrical work in Australia must be carried out by a licensed electrical worker.
Safety and compliance
Two things worth being straight about.
Workplace exposure. Laser cutting generates fine metal fume and particulate. Cutting stainless steel produces hexavalent chromium and nickel compounds; galvanised and coated material produces zinc oxide fume; and fine metal particulate in general sits well within the respirable range. Australian workplace exposure standards apply, and under the model WHS Regulations a PCBU must eliminate or minimise exposure so far as is reasonably practicable. A dust collector that is not maintained is not controlling anything — it just looks like it is.
Combustible dust. Some cutting operations generate dust with genuine fire and deflagration potential, particularly where aluminium or titanium is involved, or where fines accumulate in ducting and hoppers. If your process falls into that category, explosion protection provisions, spark arrest and housekeeping are engineering questions that need proper assessment for your specific installation — not a rule of thumb from a website. We will tell you when that is the situation rather than guess at it.
The information on this page is general guidance based on field experience with industrial extraction equipment. It is not a substitute for the manufacturer’s documentation for your specific unit, a risk assessment of your specific installation, or advice from a suitably qualified professional.
Book a service or report a fault
Tell us the model, the symptom and your location. We will come back with a diagnosis and the fastest realistic path to getting you cutting again.