Optimised airflow. Maximum clearance. Better results.
When space is tight, Cyclomade® Oval Spiral Ducts deliver. Designed for low-clearance ceilings and congested ceiling spaces, offering the same airflow efficiency and strength as round ducting — reshaped for the realities of modern commercial builds.
Made from galvanised steel and lock-seamed for strength, they’re ideal for projects where round ducting simply won’t fit but performance still matters. Suitable for concealed ceiling voids or exposed architectural spaces, Cyclomade® oval ducting combines technical compliance with practical ease.
Extraction solutions suitable for a range of uses:
| Height MM | Width MM | Base Tube Diameter MM | 0.8 Material | 1.0 Material | 1.2 Material |
|---|---|---|---|---|---|
| 200 | 535 | 406 | OD-535-8 | OD-535-10 | OD-535-10 |
| 200 | 610 | 457 | OD-610-8 | OD-610-10 | OD-610-10 |
| 200 | 685 | 508 | OD-685-8 | OD-685-10 | OD-685-10 |
| 200 | 760 | 559 | OD-760-8 | OD-760-10 | OD-760-10 |
| 200 | 840 | 610 | OD-840-8 | OD-840-10 | OD-840-10 |
| 200 | 1000 | 710 | OD-1000-8 | OD-1000-10 | OD-1000-10 |
| 200 | 1170 | 800 | OD-1170-8 | OD-1170-10 | OD-1170-10 |
| 200 | 1320 | 915 | OD-1320-8 | OD-1320-10 | OD-1320-10 |
| 250 | 585 | 457 | OD-585-8 | OD-585-10 | OD-585-10 |
| 250 | 660 | 508 | OD-660-8 | OD-660-10 | OD-660-10 |
| 250 | 735 | 559 | OD-735-8 | OD-735-10 | OD-735-10 |
| 250 | 810 | 610 | OD-810-8 | OD-810-10 | OD-810-10 |
| 250 | 965 | 710 | OD-965-8 | OD-965-10 | OD-965-10 |
| 250 | 1145 | 800 | OD-1145-8 | OD-1145-10 | OD-1145-10 |
| 250 | 1295 | 915 | OD-1295-8 | OD-1295-10 | OD-1295-10 |
| 250 | 1450 | 1000 | OD-1450-8 | OD-1450-10 | OD-1450-10 |
| 250 | 1610 | 1120 | OD-1610-8 | OD-1610-10 | OD-1610-10 |
| 300 | 635 | 508 | OD-635-8 | OD-635-10 | OD-635-10 |
| 300 | 710 | 559 | OD-710-8 | OD-710-10 | OD-710-10 |
| 300 | 790 | 610 | OD-790-8 | OD-790-10 | OD-790-10 |
| 300 | 940 | 710 | OD-940-8 | OD-940-10 | OD-940-10 |
| 300 | 1100 | 800 | OD-1100-8 | OD-1100-10 | OD-1100-10 |
| 300 | 1270 | 915 | OD-1270-8 | OD-1270-10 | OD-1270-10 |
| 300 | 1420 | 1000 | OD-1420-8 | OD-1420-10 | OD-1420-10 |
| 300 | 1580 | 1120 | OD-1580-8 | OD-1580-10 | OD-1580-10 |
| 300 | 1750 | 1250 | OD-1750-8 | OD-1750-10 | OD-1750-10 |
| 350 | 685 | 559 | OD-685-8 | OD-685-10 | OD-685-10 |
| 350 | 760 | 610 | OD-760-8 | OD-760-10 | OD-760-10 |
| 350 | 915 | 710 | OD-915-8 | OD-915-10 | OD-915-10 |
| 350 | 1070 | 800 | OD-1070-8 | OD-1070-10 | OD-1070-10 |
| 350 | 1245 | 915 | OD-1245-8 | OD-1245-10 | OD-1245-10 |
| 350 | 1400 | 1000 | OD-1400-8 | OD-1400-10 | OD-1400-10 |
| 350 | 1550 | 1120 | OD-1550-8 | OD-1550-10 | OD-1550-10 |
| 350 | 1700 | 1250 | OD-1700-8 | OD-1700-10 | OD-1700-10 |
| 400 | 645 | 559 | OD-645-8 | OD-645-10 | OD-645-10 |
| 400 | 740 | 610 | OD-740-8 | OD-740-10 | OD-740-10 |
| 400 | 890 | 710 | OD-890-8 | OD-890-10 | OD-890-10 |
| 400 | 1040 | 800 | OD-1040-8 | OD-1040-10 | OD-1040-10 |
| 400 | 1200 | 915 | OD-1200-8 | OD-1200-10 | OD-1200-10 |
| 400 | 1370 | 1000 | OD-1370-8 | OD-1370-10 | OD-1370-10 |
| 400 | 1525 | 1120 | OD-1525-8 | OD-1525-10 | OD-1525-10 |
| 400 | 1680 | 1250 | OD-1680-8 | OD-1680-10 | OD-1680-10 |
| 450 | 700 | 610 | OD-700-8 | OD-700-10 | OD-700-10 |
| 450 | 865 | 710 | OD-865-8 | OD-865-10 | OD-865-10 |
| 450 | 1015 | 800 | OD-1015-8 | OD-1015-10 | OD-1015-10 |
| 450 | 1175 | 915 | OD-1175-8 | OD-1175-10 | OD-1175-10 |
| 450 | 1345 | 1000 | OD-1345-10 | OD-1345-10 | |
| 450 | 1500 | 1120 | OD-1500-10 | OD-1500-10 | |
| 450 | 1650 | 1250 | OD-1650-10 | OD-1650-10 |
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