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14th January 2017, 07:50 PM #1New Member
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Air compressor for a wide belt sander
G'day All,
I would greatly appreciate any feedback from users (wide belt sanders) regarding what air compressor specs. are required to tension a wide belt sander (LEDA GP-600AE, 600mm wide - with electronic eye tracking)
I have no info from the previous owners (government department), phoned Leda and they weren't much help..
I'd be using the machine a couple of hours per day - with the compressor dedicated to the machine.
Any info from wide belt sander users would be appreciated as I want to get a compressor that can handle the requirements
..
Thanks in advance
Cromulant
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14th January 2017 07:50 PM # ADSGoogle Adsense Advertisement
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14th January 2017, 09:23 PM #2Taking a break
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They use bugger-all air unless it has air-jet cleaning of the sanding belt or a leak in the system.
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15th January 2017, 10:01 AM #3
If you can't find any precise info, then this generic table might give you some idea of where to start tweaking from.
- Andy Mc
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15th January 2017, 10:13 AM #4Taking a break
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That's only pressure settings (most of which is set at the factory), not consumption. I'm out of town at the moment, but I'll try to remember to check the book at work when I get back
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15th January 2017, 06:21 PM #5New Member
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15th January 2017, 06:35 PM #6Taking a break
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70 PSI sounds a bit low to me, but if that's what the book says
All the machines at work recommend 6-8 bar or about 90-120 PSI
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16th January 2017, 09:50 AM #7New Member
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[QUOTE=elanjacobs;2001561]70 PSI sounds a bit low to me, but if that's what the book says
All the machines at work recommend 6
Thanks Elancojobs
.....on closer inspection the table of technical data says 70 PSIG (gauge) not sure this is the same as PSI ? ..... as further within the manual it says the air pressure required is 6 atm (which is around 90 PSI as you have indicated).
Just out of curiosity, are you running a WB sander, and if so what type of compressor (specs alone if you don't want to be brand specific). Hope you are enjoying (or enjoyed) your break.
Best regards
Cromulant
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16th January 2017, 10:05 AM #8Taking a break
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Yes, we are running a twin head 1350mm WBS as well as a CNC router and a whole lot of other machines. The compressor is a big 3-phase Broadbent, don't know the numbers off the top of my head but it runs the whole factory with no problem
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17th January 2017, 02:31 AM #9
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17th January 2017, 12:21 PM #10Senior Member
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Albert has a 900 SCM from memory, the belt cleaning and tracking on these uses about 100lpm. The heavy air consumption on these sanders comes from the air jet used to clean the dust off the finished piece, using that would bump air consumption up to 500lpm.
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17th January 2017, 06:15 PM #11New Member
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Thanks to all for the additional feedback
As a novice regarding WB sanders I have been led to believe that in machines with 'electronic eye tracking" belt tensioning alone is the principal consumer or air.
100lpm (as opposed to 0.5 cubic meters per hour - 8.5 litres per minute at 6 atm, as per manual) would require a substantially bigger compressor.
Perhaps "Albert" has a machine without electronic tracking (not sure how to PM of find this gentleman, hopefully he my be reading to confirm ?)
Cromulant
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17th January 2017, 06:23 PM #12Taking a break
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100lpm is for belt cleaning, not tracking; that only needs a pulse every minute or so. The eye detects when the belt shifts too far and an air cylinder acts on one end of the roller to shift it back
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17th January 2017, 07:50 PM #13SENIOR MEMBER
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Hello Cromulant! Ian asked me to have a look at this post and perhaps I can share my bit of info
Regarding OP's question and other bits and pieces...
I started with a 900mm SCM single head with no jet cleaning, I cant remember how much air it uses but it was a lot, it has no electronic tracking, but air is pushed onto a sacrificial plastic spoon to track the belt.
here is a photo of it.
1014324_10152144292043813_770214111_n.jpg
I now use a 1100mm SCM twin head with platten and jet cleaning, this machine is much newer and I believe it has electronic tracking and uses 30 litre per minute of air at 6 bar for oscillating, and for the jet cleaning 700 litre per minute for the jet cleaning, this figure is the amount of air it will use if the jet is turned on constantly for continuous sue, there is a switch you can play with the timing of the jet.
12961542_10153776263658813_6739605181023969127_n (1).jpg
I have a 10hp, 1210l/min or 43cfm Compressoor, I wouldnt go anything smaller for my 730 litre per min sander, there is even room for me to move up if I wanted a bigger sander, buy the biggest/best compressor you can afford and you wont need to look at it again - you are future proofing yourself.
Keep in mind when you are considering compressor you may want to consider dryer and proper compressed air line for your workshop. just like workshop ducting.SCM L'Invincibile si X, SCM L'Invincibile S7, SCM TI 145EP, SCM Sandya Win 630, Masterwood OMB1V, Meber 600, Delta RJ42, Nederman S750, Chicago Pneumatics CPRS10500, Ceccato CDX12
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18th January 2017, 01:20 AM #14
Thanks Albert for dropping bye ...
The other consideration is dust collection.regards from Alberta, Canada
ian
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18th January 2017, 11:03 AM #15New Member
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Wow...thanks to all Ian, Albert and Elancojobs.....i'm on a learning curve and great to have access to your time and knowledge.
Based on my manual, it appears my GP-600AE has air jet cleaning only as an optional extra (for clearing and cooling the running abrasive). Seems it my not be equipped with this at present.
Leads to a couple of questions....as this appears to be the air hungry part of operation.
(I realise this may be a how long is a piece of string question) Can you run a 600 wide sander without air jet cleaning ?? - 3-4 hours a week (one hour blocks mostly)
Does this impact on requiring more effective dust extraction AND downtime in cleaning manually ??
I would rather fork out for the air jet cleaning (and big compressor) long term - but may ?? be able to run her without for a bit while I figure out the finances
Regards
Cromulant
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