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bayanMM

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  1. @neilestrick do you think something like this https://www.grainger.com/product/2MMN2?ef_id=CjwKCAjwvuGJBhB1EiwACU1AiaUBH5aw9zBHt8erE-kemtah9xmy7BVb4ftDKHTLbCppm6s7Pt-EFBoCVhQQAvD_BwE:G:s&s_kwcid=AL!2966!3!496359975010!!!g!461787464874!&gucid=N:N:PS:Paid:GGL:CSM-2295:4P7A1P:20501231&gclid=CjwKCAjwvuGJBhB1EiwACU1AiaUBH5aw9zBHt8erE-kemtah9xmy7BVb4ftDKHTLbCppm6s7Pt-EFBoCVhQQAvD_BwE&gclsrc=aw.ds would be appropriate as a 1 to 1 replacement?
  2. Good morning everyone, I've got myself a funny project here. My employer is trying to sell/donate an Olympic FL10E kiln to, well, just about anyone in the local area who's willing to take it. The kiln hasn't been working out too well with our production model, & we want to clear up the space it's occupying for future equipment. Unfortunately, state regulation prevents us from both selling & donating a kiln with a mercury relay installed, & a regulator (who did a fine job intercepting a craigslist post) insisted that we must source & install a suitable replacement relay before continuing. I've already contacted Olympic's technicians to pick their brains for a potential solution, & I'm doing some research & planning on my end while waiting for them to get back to me/in case they don't have anything for me. I'm thinking that https://www.mdius.com/products/solid-state-relay-75-amp-2-pole-or-3-pole-ac-control-35a-60a-retrofit-back-plate-120v-fan should be a suitable retrofit part for the installed https://www.mdius.com/products/mercury-relay-60-amp-3-pole-220-vac-coil-normally-open , & the included fan should work wonders for heat mitigation. My major hangup is what the best way of supplying power to the 120v fan is; I figure running a direct 120 plug into the wall *should* be the quick & easy solution, but because I have a less-than-optimal amount of electrical experience, I don't have 100% confidence in setting that up & passing that along to the next owner. Another option would be to go with the SSR that has a 24VDC fan, & feeding that with the controller's output 4 at 12VDC. Thoughts? Suggestions? Thanks in advance.
  3. Howdy everyone! This is a listing for an Olympic FL10E electric front-loading kiln that I'm helping my employer sell. Requested asking price optimally $2000, but negotiable. Specs and images below. 208 Volt, 46 Amp, 14400 Watt, 3 Phase, 60Hz, Max Temp 2350F/^10 10 cubic feet interior, 4.5” brick + 1” fiber walls, single zone Type K thermocouple, locking door latches, Bartlett V6-CF digital controller Direct wire install Est. weight 1150 lbs Fully refurbished for sale; new elements, mercury relay, full feeder rewiring; $700 of new parts. Full set of replacement wall elements included ($360 value) Cosmetic damage to interior brick, element channels, stainless steel shell, & interior of control boxes No long term structural damage, no evidence of excessive shell losses from brick damage.
  4. so quick update: Regarding the elements, I got conflicting signals from Skutt vs Euclid; Skutt tech said that a lower gauge element retrofit wouldn't be possible, but advised the APM upgrade, while Euclid gave me a quote for a set that actually comes slightly cheaper than the stock elements before s&h. 99% on going with Euclid's lower gauge. I'm going to push for the SSR's in my proposal; everything I'm seeing is pointing towards the increased longevity + efficiency being worth the money in the long run. I am curious about how the SSR's will affect the mid-late fire; data has been showing that the controller goes to full blast really early on dense loads (consistently around 600*F), & lags significantly behind the programmed ramp. We're actually in the process of ordering more KMT1227's for my location, so I'll see if I can get a factory SSR upgrade for one of those, & hold off on the others while we run tests to confirm that it's all worth it. My plan is to individually test these upgrades on 4 KMT1227's: one stock, one w/ low gauge, one with SSR, & for a final round, one with both upgrades. I figure that the data from a handful of firings each should give us something concrete before next year. I'll be sure to share results as we get them, & will happily share what we have right now if y'all are interested. Thank you all so much for sharing your collective knowledge & experience!
  5. I had a similar thing happen w/ a Skutt 1222, after some troubleshooting I figured it had to be something wrong with the relays. Problem went away after a full replacement.
  6. Sorry for reviving an older subject, but I read through & couldn't resist adding a bit of devilry to the conversation. A bit of background- I was (& still am) involved in the cast iron sculpture community long before getting into kilnwork, so a lot of my attitudes & approaches towards heat come from that side over 2500*F; we mostly work w/ propane starters to ignite coke fueled blast furnaces to hold ~3000*F for 5-12 hour long performance events. All of this lends to a "mas fuego" sort of candor regarding handling & being around extreme heat. Anywho, I've done work at an outfit where toploading electric kilns were cracked 1" at 1000*F, with additional 1" cracks for every 100*F down to 5" at 500*, at which point it was considered "safe" to dive in & start pulling out lowfire tiles on advancer furniture. I think this was made SOP to make the fastest possible turnarounds. In a pinch, I found that we could, at an absolute SHTF maximum, pop lids fully open & dive in at 750. As long as we stayed below that 750* mark, we never really had any problems with glazes, ware breaking, or sudden furniture death. In any case, all of these kilns were also further crash cooled w/ batteries of electric fans aimed at their propped lids, & pulled ware was also cooled down in front of large drum fans.
  7. Very good to know, I'm starting to lean towards beefing up instead of grabbing APM's, but the price point will end up being the final deciding factor here towards thicker wire. Slowly switching over to L&L or ConeArt is actually my preferred long-game solution, & I have a whole other proposal written up for all that, but it's a long shot- this company has really serious brand loyalty to Skutt products (they also got really burned out, pun not intended, on a number of bad experiences w/ 3 large Olympic frontloaders that we're still dealing with), so it'll be a tough sell. Part upgrades is my compromise proposal to at the very least extend the maintenance cycles. I briefly looked at type S, but the number of reports on their fragility compared to K is a bit of turnoff.
  8. Thank you both so much, this has all been really helpful for me, & has given me a lot more to work with. My takeaway is that SSR's or internal cooling may be the best/most immediate solution to streamlining our maintenance cycle, & different elements would be a bonus, but not the biggest fix, while doing both may yield the best long-term results. My pipedream is for our standard typeK thermocouples to be the only part we switch out within the year; right now we schedule replacements every 6 months or as needed. Unfortunately, thermocouples happen to be the only repair that regularly is preventative, rather than reactive. @neilestrick Thanks for the tip on upsizing the elements vs APM's; my primary issue with our current equipment actually happens to be how quickly our elements sag/warp into really incredible conditions before arcing sometime around the 10-12 month mark. This actually has been more of a problem with our two large Olympic front-load electrics, so this may also be a solution for those two while we still have them around. I'll be writing Skutt & Euclid shortly to pick their brains about it & get estimates. Would there be any concern about changes in firing characteristics with upsizing the elements? @Bill Kielb Your video on SSR's was super informative, & I'll be sure to forward it up with my proposal. We're currently in the process of networking all of our preexisting & future kilns; right now HQ only has one convert that we use as a general test kiln for new glazes, upgrades/hardware changes, & data tracking through KilnLink. Company furnished the second location with the new KMT models; as of now they have 8, with plans for 12 more within the year. Anyways, I've noticed from a month of data that there seems to be a trend for fuller loads (10-11 layers, 20-22 shelves in a KM1227 208 3p, 1.5in apart) to significantly lag behind shortloads, but I think I need more data & time to have that for sure. It never occurred to me that max density had that much of an impact on draw & relay health; we all figured it was as simple as more stuff = more time. I saw a lot of discussion about electrical safety w/ bonded shelves; Advancers make up half of our shelving inventory. It wouldn't be too hard to have my crews kill each kiln @ the breaker as soon as they hit unloading temp, but I like the KISS idea of retrofitting SSR converts w/ a euro-style lid switch- I feel there's less room for catastrophic human error there.
  9. Howdy y'all! I run & maintain the kilns at a Minnesota-based designer tile factory, & I'm currently researching potential kiln upgrades for all of our equipment. We primarily run Skutt KM1227's / KM/1027's on a high frequency lowfire schedule; our 14 kilns are scheduled to fire almost every day that isn't a weekend or holiday. Most of our glaze firings are to ^06/05. We almost exclusively use lowfire hobby glazes, & have found that an army of smaller topload kilns gets more reliable results than much larger car kilns. We've just expanded to a second location in northern Minnesota, & we have plans in the books to expand to multiple locations out of state within the next 5 years, so I'm primarily interested in maintenance solutions that will reduce downtime. Our EM relays routinely fail around every 6-8 months, & elements around or just below the year-mark. I've been scrolling through these forums for a bit, & I found some discussion on solid state relay conversions that I found to be promising (I've reached out to Skutt about new boxes for SSR conversions for our existing kilns), & found some notes around the web on APM elements. However, a lot of what I found pertained to folks that work in the mid-highfire ranges. Cards on the table, budget is not an issue here, but I wanted to run this by y'all before I send in my proposal to the higher-ups. Will we see a noticeable/justifiable improvement in kiln performance/component service life with these upgrades?
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