Thread: Spindle Size (HP) adequacy

Hi Glenn,
I have a cheap Chinese 800 watt spindle on my machine which is two years old now. It cuts ally with a 5mm carbide mill cutter at 0.75mm DOC at 1500mm/min without pushing it hard. I have cut 20mm plate and regularly do 10, 12 and 16mm plate.

Abviously 1.5kw would be better but it still doesn't hold a 1/2 bit and weighs a lot more than the 800 watt so take your choice.

If the machine will take it I would go the 1.5kw as there is very little difference in price in the Chinese cost of the spindle - Tekno might be different.

Do you have a link to the Tekno?

Thanks Rod

I was looking at the spindles via this chap:DamenCNC - TeknoMotor He has been very helpful and only to happy to answer my multiple emails.

Specifically I was looking at the C31/40-C-DBS-P-ER20-0.7KW-24000RPM

I guess one of the main reasons which may be a silly one was the physical size of the spindle, it has the ER20 and it measures around 63 x 83 x 240, weighing 4kg

the next model up is the C41/47-B-DB-P-ER25-HY-1.6KW-24000RPM which goes to the ER25 and measures 93 x 83 x 310, weighing 8 kg (i don't think my gantry would have an issue though??). The price is almost double too. But i think this may really be the better option in the long run

From what I have read these units seem pretty good and well worth the money, but i do also need to have a good look into the air cooled Chinese spindles, i did have a 2.2kw water cooled unit previously and it served well,it was just the water set up was a bit of a pain (my fault not theirs!)

Cheers
Glenn

Have you seen these?

Square Spindle

I haven't seen that seller, his price actually seems pretty good to.

I was looking at one similiar through Lovehappyshopping where i bought my watercooled unit, NEW AIR-COOLE MOTOR SPINDLE 3KW AND MATCHING INVERTER (eBay item 390260695202 end time 09-Mar-11 14:53:25 AEDST) : Business, Office Industrial

will definitely have to do some more research on these units.

thanks
Glenn

Hi Glenn,
I wasn't recommending that seller or the unit. Just showing that you can get the square body as a lot think only the cylindrical units come out of China.
Be good to see what you decide on.