Connect a Cyclone collector 6 in inlet to a 1-1/4 in shop-vac hose
How to join a Cyclone collector 6 in inlet to a 1-1/4 in shop-vac hose, and what stops it leaking dust.
Not compatible without stepping down. A 1-1/4 in shop-vac hose is far larger than the Cyclone collector 6 in inlet, so it needs a 6 in to 1-1/4 in step reducer.
Rings drawn to scale from the measured diameters in the table below.
The two ends
| End A | Cyclone collector 6 in inlet (6 in ID) |
|---|---|
| End B | 1-1/4 in shop-vac hose (approx 1-1/2 cuff in OD, 1-1/4 in ID) |
| Fit type | hose cuff into female socket |
| Reducer needed | 6 in to 1-1/4 in step reducer |
Shop notes
The hose tip is about 32 mm and the port socket about 152 mm, a gap of 120 mm, so the port socket simply swallows the hose tip with no contact. A 6 in to 1-1/4 in step reducer is needed, and even reduced the airflow is mismatched between the Cyclone collector 6 in inlet and the 1-1/4 in shop-vac hose.
Wrapping tape to close a 120 mm gap never seals cleanly and chokes the airflow further. Step the sizes properly, or pair each end with a fitting closer to its own size.
The reducer to buy
Shop 6 in to 1-1/4 in step reducer on AmazonaffiliateFind 6 in to 1-1/4 in step reducer on eBayaffiliateRelated connections
- Cyclone collector 6 in inlet6 in inlet (approx 152 mm)
- 1-1/4 in shop-vac hose1-1/4 in (approx 32 mm)
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