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How many sheets per day cut/drill/edged on CNC10/23
I have been looking through the forum trying to get some real world figures on how many sheets per day I should expect to get off our CNC
We have had CNC for about 4 months. I had very little CNC experience prior to purchase. My guy running it also very little experience running a CNC.
Long story short. I think we are capable of getting at least 20% more throughput on the machine probably more like 30-40% simply through efficient processing, no extra energy exerted (in fact probably less!!). He of course, doesn't see it the same way. So in an effort to "guide him on the right path" I'm wondering if you could please provide some real world figures from your shops of how many sheets you cut, edge and organise for assembly in a day.
Setup as below:
Frameless cabinets melamine carcass, doors either melamine or mdf for painting.
After parts cut I like them in a combination of stacked on a trolley, in a parts cart and tall stuff leaning against the wall.
8.5 hour shift with 30 min lunch and 15 min tea break.
Can't tell you as we don't know what kind of ply you cut, how many inches there is per sheet, how many holes there are, how many toll changes and how fast you can cut and get a good finish
I have no first hand experience but I have seen basic office furniture being processed at 41/2-5 minutes per sheet before the bander. this was with automatic loading and unloading of sheets
Thanks for the feedback.
whilst I understand we could simply work off this figure and divide by the minutes in a shift I'm after real world figures to compare what the machine is capable of and what a staff member actually produces.
We routinely cut 5 to 6 sheets per hour. Our run times are likely a little longer than most as we have a v-bit that scribes part information on each part instead of using stick on labels. This adds a few minutes per sheet. We are also using a relatively light duty machine. We have 20HP of vacuum and cut at 500ipm. Machine is a Camaster Cobra with 10HP spindle and 10 position tool change. Typical sheet uses 3 or 4 tools.
At 5 to 6 sheets per hour the machine has scribed all parts with part number and edgeband info, drilled pilot holes for screwing boxes together, drilled all shelf and hardware holes, drilled leg leveler holes, and cut parts. This also includes time to load and unload machine, and edgeband while the next sheet is running. Basically we have 5 or 6 sheets worth of parts ready for assembly every hour.
Our off load/load time is about 1 minute per sheet. So the machine sits idle for about 1 minute every sheet. Our guys are really not working very hard to make this happen.
With your 5 to 7 minute minute run time stated above, I would call it 8 minutes average per sheet including loading/unloading. For real world numbers I would simply divide working time by this number. In order to make it happen, you simply need to stress the importance to your guys......when the machine stops, the mission is to get it running again as quickly as possible.
We are 10 to 12 minutes per sheet including load/unload and our guys have no trouble making this happen.
For a very accurate time, go spend an hour with the guys running the machine and watch and time. The main time to watch is the idle time, as once you have your cutting parameters optimized, not much you can do about them. You can however do things to speed load/unload times....make it as efficient as possible.
I think you also have no need to cut with 2 passes.