Dust Collector Losing Suction? Bags, Cartridges and Hose Adaptors

Your dust collector is running, but the shavings stay on the floor, or the hose won’t fit the next machine. Often the cause is a blocked hose or a full or caked bag, not a dead motor. A hose that won’t fit just needs the right adaptor.

PartsForMachines stocks 31 SIP dust and fume extraction spares, from filter bags and 1µm cartridges to welding fume filters and hose adaptors.

Dust Collector Has Lost Its Suction: Blocked Hose, Full Bag or Caked Filter?

Lost suction often comes from a blocked hose, a full collection bag or a filter bag caked with dust, so work along the airflow. Start with the hose: clear any blockage in it or at the machine’s port.

Next, check the lower bag. A full bag cuts suction, so empty it before the dust reaches the top. Then look at the upper cloth bag. If it stays caked after cleaning, fit a new one, such as the 66376 coarse cotton filter bag for the 01954 and 01956. Still weak after all that? Have the fan and motor checked.

Cloth Filter Bag or 1µm Cartridge: Is the Upgrade Worth It?

It is worth it if you cut a lot of MDF or sand heavily; for chips and general sawdust, a cotton bag does the job. The 62606 1µm high filtration cartridge filters down to 1µm and is made for finer particles such as MDF.

Each cartridge suits specific machines, so check it is listed for your collector’s item number. Expect to clean it more often, too: fine dust blinds filter media sooner than chips do.

Can I Wash a Clogged Filter Bag, or Is It Time for a New One?

Clean it first, and fit a new one once cleaning no longer brings the suction back. Check your machine’s manual before you wash a cloth bag.

Replace the bag if it is torn, if dust still escapes once it is fitted correctly, or if it stays caked after cleaning. For the small 01952 collector, the matching spare is the 62564 coarse cotton filter bag; bags for the bigger collectors are listed for those machines only.

Hose Won’t Fit the Machine’s Dust Port: Which Adaptor Do I Need?

Measure the machine’s dust port across the outside and the inside, then pick the ring that steps the collector’s 100mm hose inlet to that size. The 01935 5-piece adaptor set has 35, 40, 45, 70 and 105mm rings and suits SIP dust collectors, including the 50-litre dust and chip collector.

Ring sizes are nominal, so compare your measurement with each ring’s figures: the 35mm ring is 34.4mm across the outside. A narrower hose carries less air, so keep the full-size hose for as much of the run as you can.

What Should I Check Before I Order?

• the item number on your collector or extractor’s rating plate, matched to the spare’s “suitable for” list
• filter bag or collection bag: the cotton bag is the filter, the polythene bag collects the waste
• whether a 1µm cartridge is listed for your machine, if you cut MDF or sand a lot
• on a welding fume extractor, which stage is due: pre-filter, main filter or carbon filter
• the outside and inside diameter of the machine’s dust port, before you choose an adaptor ring

Browse the dust and fume extraction spares, or contact the PartsForMachines team by WhatsApp, telephone or email with your machine’s item number. A photo of the rating plate helps.

Product options, delivery options and returns terms are shown on each product page. A 30-day return policy applies to eligible items.

Frequently Asked Questions

Which 1µm cartridge fits my dust collector?

It depends on the machine, as the 62606 and 62605 suit different collectors. Check the item number on your collector’s rating plate against the “suitable for” list on each cartridge’s product page. Not sure? Send our team a photo of the plate.

Can I use a plastic bag instead of the cloth one?

Only as the lower bag. The 66371 polythene collection bag for the 01954 and 01956 is made to collect the waste, while the cotton bag is the filter. Never swap them over.

What does the carbon filter in a welding fume extractor do?

It removes fume odours by absorption, working alongside the cartridge filter rather than replacing it. On the FX100, the WE08-00053 carbon filter works with the WE08-00052 cylinder cartridge filter; the two also come together as a kit.

Which filters does a welding fume extractor use?

Usually several filter stages, each a separate part. On the FX-EH and FX-WM extractors, the WE08-00010 pre-filter and the WE08-00008 absolute filter are sold separately, so you replace only the one that is due.

My FX200 extractor’s filters are clogged: which part do I need?

The WE08-00098 primary filter and the WE08-00099 high-efficiency filter are separate parts of the FX200’s 3-stage system; SIP rates the final stage down to 0.3 microns. Replace the stage that is clogged.

Can I replace a damaged fume extraction arm?

Yes, on the wall-mounted FX-WM extractors. The 05810 is a 3m flexi arm for the single-arm 05812 and the double-arm 05806 only, so check your extractor’s model number first.

Do PAPR welding headshield filters need changing too?

Yes, and they are separate spares: a main HEPA filter (WE09-00028) and a pre-filter (WE09-00029). Follow the headshield manual for when to change each one.

Can a 1µm cartridge be cleaned without taking it out?

Yes. The 62606 has a manual filter shaker and cleaner, so you can service it in place without specialist tools. Work the shaker more often when you cut MDF or sand heavily.