Hi guys. I have a Bill Pentz (Clear Vue Cyclones in the US) fan for my dust system which i sourced in the US, and i'm struggling to economically sort the issue of driving it at the 3,450 rpm it needs to perform really well.
It'd work in terms of chip collection, but my pressure drop will be around that where the fan curve shows the performance really starting to tail off and i don't want to risk it.
This is the difference in speed between a US spec 5hp single phase 2 pole motor at 60Hz, and the local 50Hz equivalent which gives 2,850 rpm.
I'd seen a Belgian guy post of buying a suitable inverter for the same drive for around €300 which would be fine (can't reach him as the post is several years old), but my quotes so far in the UK range from £650 - £1200 which is too much.
It's not rocket science, all it would need is a single stage 1.2:1 helical gearbox or maybe a toothed belt in a housing - capable of flange mounting to the motor and the flat fan casing at the other end.
Trouble is step-up gearboxes seem rare in industry (almost all are reducers), i've only been able to find stuff for driving hedge cutters etc off the back of tractors with less than ideal shaft configurations.
I've a few enquiries out which might yet yield something, but am i missing something?
ian
It'd work in terms of chip collection, but my pressure drop will be around that where the fan curve shows the performance really starting to tail off and i don't want to risk it.
This is the difference in speed between a US spec 5hp single phase 2 pole motor at 60Hz, and the local 50Hz equivalent which gives 2,850 rpm.
I'd seen a Belgian guy post of buying a suitable inverter for the same drive for around €300 which would be fine (can't reach him as the post is several years old), but my quotes so far in the UK range from £650 - £1200 which is too much.
It's not rocket science, all it would need is a single stage 1.2:1 helical gearbox or maybe a toothed belt in a housing - capable of flange mounting to the motor and the flat fan casing at the other end.
Trouble is step-up gearboxes seem rare in industry (almost all are reducers), i've only been able to find stuff for driving hedge cutters etc off the back of tractors with less than ideal shaft configurations.
I've a few enquiries out which might yet yield something, but am i missing something?
ian