Cheapest spd pump

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21

Do A LOT amd i mean a lot of reading. @Cryo13 @Killa12345 @Killavolt, myself, and a few others have also posted threads, videos and pics of our setups. I suggest reading, and getting the vac parts like we have.

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22

For a 5l you should probably get an edwards e2m30 / e2m28 or comparable pump, however in a pinch one could probably get away with using that…
I completely agree with @Demontrich

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23

I would suggest larger pump for 5l. Than the 2021i

24

be a boss about it. comes in just under budget. cfm city.
https://www.ebay.com/itm/Stokes-Microvane-Vacuum-Pump-With-Roots-Blower-And-Exhaust-Scrubber-On-Cart/123390135147?hash=item1cbaa00b6b:rk:16:pf:0&checksum=12339013514723a93d94ab9640f5ad469aa535d8f2c0&enc=AQADAAAC8FjVrDbVsZ8oH%2F8PNHtt9VX4%2Fw7FZcmMuqsX8uaFEduVaYBHIikkvE4FOnVioym2P2BwCHsbbYHAa4OsMWyUVfQRtWf%2FtqbMyQwuyFxSTX8vzc5slXmIeDOJIzn8wrCLA0BEp4o8cuI77pdL6Xk%2Fqyn3A8%2Fwuq5P64YCMPe30deZKsHbJiAQu8AXqJgRJY7DZEqFC4zORl2yMoup%2Fe9A5rrfl56feKvg61emwbQ5o7WznSNdMFTzo6eXEI%2B9eh7n6Q7NMtdtTzlfaYVIGb5Up4WUz5ZtMdWgjmqlJNjwBU47tUwugbHPDuTkIY3DVGFgw7YzL0G5QqzGcc3LLhXKPghUtawZ%2BC9%2BTw97TuHB1vJBy90xwmUGhzksQcFgB3UTUc%2BzSxjXbIGHnzDYaqYCEeTzCkMWeZowWlEuHbYHK4RGaAHsvXGwq32Kzw3o69ExMhZ0%2Fmq73BDoU97%2FGGjjXLHy0jlwT1T0E%2FxQBxT%2BBlzbwvZvWqjafpCZzMI%2FDJGoh%2FtXJEqURKkUZl9wKuc7rHGMXQ6QUBmeBm%2BI9bqXIx1pstKrVOsWXaSMI7SSbo%2FEJmBimdcXCl3mhgASuXKhypV0micJYS1m6rZsE35el3PEoMUtEP6D3icTftPCdkkndk3qVZhavoh6SN%2BF%2F1qSEW9lsxA3QZZ96lYbo%2B%2FD9Vki3UCGWQq9g6OdcEAor04%2FIjBMsrOFiVKh7dgvDrvwg3Izw4%2BhsoHr0ZD5VkTAtEutHfqXvSPBsvS5q%2BRQhXGiU5wTP9P%2BCsfItlbu9kofv%2FyF4zgDE2RDjfsgODx5Houd5r40LG5Uu%2B%2FtRjWp6Pnu4YscXT9eMqVZzjRmcjvcuNNYrEClPCLPNNGbCydA1ZtsXiae1jI7CrHUB8ThPvNQ1XKy3oggyclxO5yXVMz2HT9mDt2GN3v%2FMD1sDMJuSt5HDElqu2rWDhM8g7jPKD6YqWcv5c4zDY0T7l2jHYDlyvW%2BiRDVUXLJY7QfPzPH2Nvu

25

JB built HVAC pump will kill it, $400-600 and youre good. the eliminator model works, but I havent ran into a model that doesnt work. Hit typically sits around 50 micron main body unless you strap two together.

Plus theyre typically available in stores around the US

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26

Yes. I have one on a summit 5l kit

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27

And I also use it to pull vac on my cls system. I can get my giant 12" collection down under 20 micron. And that ish is way bigger than a 5L spd.

2 Likes
28

Would this work?
https://www.amazon.com/HFS-Vacuum-Pump-Double-Stage/dp/B00XFLA2MC/ref=sr_1_3?hvadid=241941513829&hvdev=c&hvlocphy=9030055&hvnetw=g&hvpos=1o1&hvqmt=b&hvrand=6727917654917569817&hvtargid=aud-648254335185%3Akwd-381137056235&keywords=9+cfm+vacuum+pump&qid=1555715530&s=gateway&sr=8-3

29

I’m gonna try this idea when I get around to it. Safely wiring it wasn’t really a specialty of mine and it burned out.

I got my 0.9 cu ft AI acuutemp from 0 to -30 in 5 seconds. It was a wet dream and I urge people to try it out but SERIOUSLY WIRE IT CORRECTLY

30

Would work a 1000ml , slight maybe a 2000

31

https://www.amazon.com/2XZ-2-Rotary-Vane-Vacuum-Pump/dp/B07NSMRYMQ

?

32

I have a trivac leybold 2.5e for sale. 700+ shipping.

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33

No thats only good for rotovapes. U want something heavier/bigger than that for spd.
If its new and below $500, Its probablt not gonna work well. u want the pumps that are $2k+ new. Obviously buy them used if u can. I just scored a edwards e2m28 ($4k new) for $800 off ebay and was $40 short on another bid on a e2m30 that went for $900

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34

Alcatel 2021i is your beat bang for your $$$. But a rebuilt used will run ya 1600+. Used ebay challenge pumps can be found for 300-500.

3 Likes
35

Lanphan redirected me to that 2xz-2 pump that’s why I posted it lol

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36

https://kdlabinstrument.com/Rotary-Vane-Vacuum-Pump/2XZ-rotary-vane-vacuum-pump.html
Rotary vane vacuum pumps may be a good spin

37

This is literally a pile of shit

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38

Which one?

39

Anything like the kdlab stuff.

When you spend money on a pump you should expect to perform 5-10 rebuilds on it.

Why buy pumps destined to the dumpster when they need servicing.

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40

Have you used any of the kdlab pumps? How do they compare against an Alcatel2021i?