Re: One dust collector to rule them all?
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Hi Albert:
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Aha, the penny dropped for me when I saw airtight solutions. I was not particularly well informed about ¡°Nederman¡± extractors, but I know from experience that Airtight units are excellent, both in terms of
value and performance. No wonder you¡¯re happy.
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Warm regards,
Lucky
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Good day Lucky,?
I didnt have any technical issue with my hydrovane, but when I first got it, I called in compressor technician to give it a service, the cost of it at the time, $1000. I only bought the compressor for $800!! and the technician said to me that I need to run
it all the time and also this is only a small service, I need to do a service every year, by the time I got my invoice I have decided to cut it loose.?
I bought my Nederman 2nd hand, it did not come with any shaker, I know this can be retrofitted either by Nederman or after market it, mine did came with 3 stainless steel bins though, I will be replacing these bins with Comafer briquette press sometime in the
next 2 years.?
busy shop cant give you a good view of the unit.?
I have always had impeller pushing material style extractor, my previous extractor is a 4kw bag house unit, its a copy of the Nederman, it survived 8 years in my workshop, these type of fan are material handling, they are designed to take the beating (to a
degree), but if you drop a 10mm spanner in it, it will surely cause damage, I have had odd 8mm thick domino get sucked into the extraction but the impeller are fine after I removed the ducting to inspect damage, they are well built.?
current workshop and ducting layout
The only regret I have with Nederman is that I should have bought it years ago but its an costly item... mine costed $8k NZD, could have bought it cheaper but I have been bothering the guy from Nederman long enough(first email to them was back in 2014!), so
decided to get this unit, its slightly used condition and a lot of free ducting, the Nederman is very very efficient, the shavings/dust you see on the floor are from spill over when I opened up the extractor to clean it. I am like you, in the suburban area
(am in Auckland), I cant have my extractor sitting in my garden.
I have just tested the noise level of the Nederman standing 1m from the machine using an app called Decibel X, ambient noise is 35dB, max noise is 80dB, it feels louder than 80dB maybe because its sitting in a corner
attached is a T750 datasheet, material is top entry but the fan is the same as S750, 7000m3/hr @ 2800 Pa?
On Wed, Dec 7, 2022 at 10:56 AM, David Luckensmeyer wrote:
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Thanks for your comments. I didn¡¯t catch whether you had success or problems with the hydrovane? My hydrovane, like the screw, needed to be run continuously.
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I understand you have a Nederman S750 and are very happy with it. I just looked it up online and the machines on offer look very interesting. A couple of questions:
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- Do you have the shaker cleaning option? Whether you do or not, I wonder how the Nederman goes with wide belt dust?
- I see that the shaker cleaning option can only be operated (manual, mechanical or automatic) while the machine is stopped. I like to run my machines for hours at a time, and the RL250 cleaning cycle
might kick in every 15 to 20 mins depending on what I¡¯m doing during that time. Is it normal to have to power everything down in order to ¡°clean/shake¡± a dust extractor? Is this an advantage of the RL units, or in fact one of its downfalls?
- The Nederman runs the extracted material through the impeller, while the RL¡¯s impeller is after the filters. I don¡¯t know which is preferable in terms of extraction capability although I love not
having to worry about chunks of timber or foreign material damaging my impeller.
- I see there are bag, barrel and bin options for the Nederman. Which do you have and which do you recommend?
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Bottom line: I¡¯d love to hear more about the day to day living with a Nederman.
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Regarding air compressors¡ Another point I failed to mention for the benefit of others considering hydrovane or screw compressors: I live in sub-tropical Brisbane in Australia. It is not quite as humid as Hawaii,
but relative humidity is generally high. That must play a role in how much water gets into the oil of these compressors and needs to be ¡°burned off¡± with continuous or near-continuous run times. I wonder whether a hydrovane or screw compressor would last a
lot longer with intermittent use if located in an area of low relative humidity?
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David Luckensmeyer