Across International

[irishmick]

hello good sir. i noticed your using weight to flatten. mine comes out like laffy taffy so its easy to mold flat then i just vac and release a few times and it seems to work but please indulge me on your magic as im only so far into the force. ive been loving slabs for 3 months and have acheived great things so far according to those of the wise and well established but now i need to start honing these skills to more efficient and faster ways so if you dont mind id love to pick your brain. peace love and chicken grease.

 

[irishmick]

I run my across 1.9 oven at 95 for three days and get consistent shatter. I go straight from twerp to oven vac it to -29.5 let it cook for hour drop vac till it flattens then back to- 29.5 I do this 5 times in three days

 

[Chonkski]

Hi

Chonski what is the reason you use parchment before the ptfe if it is sappy?

Also some local person that works at a head shop has been telling me to stay away from parchment and use silicone sheets instead. I am assuming he's full of shit and just wants to sell me his crap? Because most of the pics I see online, people are using parchment.

Well if it is sticky still, it has I little more trouble coming off of the Teflon during a flip, rather than parchment. And it will put more wear and tear on the Teflon sheets when trying to pull it off of the slab.

Hard to make sense in words.

Since we're on the subject,
I also keep a granite slab in a mini fridge next to the ovens, which I use as a surface to help with flipping slabs.

 

[Sunfire]

I think the silicone sheets are not necessary. I use quialon or however you spell it. You buy packs of sheets precut to 14.25"x16.5" I believe is the sizes, which fit perfectly in your 1.9 oven with a tiny bit of extra lip to help with accidental over expansion of muffin. I personally however got the 16x24 sheets and cut them in half.

 

[A6 Grower]

I have been speaking with them since ive canned the 2.3 Elite and I learned they infact have a 4 sided heating system with 2 long heat tubes bending from wall to ceiling and wall to floor. I am talking to them about using heat mats as we speak.

This is correct. I thought the back was heated but its not, my hand lied to me lol.

Still loving this oven, VERY stable temp on all shelves.

 

[Dab Strudel]

This is correct. I thought the back was heated but its not, my hand lied to me lol.

Still loving this oven, VERY stable temp on all shelves.

Really? The guy told me the temps can very about 5°c on any 1 shelf, which is alot imo. Are you getting better results than that? I want to get one, I have AI's 1.9 coming next week hopefully so maybe the week after ill take a crack at one of these.

Guy also told me that no one that has ordered has cared to ask about temp uniformity (on any 1 shelf) which is weird considering a few of yall have one or more. Im trying to get them to take on the heat mats vs heat coils so if any of you have a good reputation with them drop them an email telling them you agree with the heat mats. You dont have to write a paragraph or essay, they just need some reassurance that this is the way to go.

 

[Sunfire]

I'm super confused now...
The dzf-6050 is made by keda in china.
It doesn't matter who you buy it from, I'm pretty sure it's same ovens and are 3 sided heating. I just put in an inquiry to see if they use coils or mats though and I'll have a response by tomorrow I'm sure.

Idk how they got the stainless shelves in there though, keda ships them straight from china, sealed in the crates, with 2 aluminum shelves. Maybe hydrion made them switch it up for some reason?

I'll repeat, HFS sells a single dzf-6050 for 1850$ AFTER tax and they do free shipping. AI is way more pricey. Sounds like hydrion will do good bulk discounts as will HFS but once again don't call either of them and say that "so and so got this deal or that deal." Simply ask politely what quantity discounts are available. The long shoreman strike is over thank god but I know about 40 of the 50 HFS got in were gone quick. I'd only use ai if I wanted them NOW. AI is three times closer to me than HFS and wanted to charge me three times the shipping as the discount I got from HFS for picking them up myself. Once again don't demand that discount if you do that, just kindly ask if you can get it, please.

I was asked to not share my pricing but I will say I saved thousands going with HFS rather than ai, as I went in on a big order with some friends and ai was not entertaining much of a quantity discount. You can order straight from keda as well but I'm pretty sure on multiple ovens they will want to do it by freighter and will take 6 weeks. By air it will be much less but air shipments from china are always beat to shit and trying to deal with a warranty directly through china sounds like a nightmare!

 

[Dab Strudel]

I'm super confused now...
The dzf-6050 is made by keda in china.
It doesn't matter who you buy it from, I'm pretty sure it's same ovens and are 3 sided heating. I just put in an inquiry to see if they use coils or mats though and I'll have a response by tomorrow I'm sure.

Idk how they got the stainless shelves in there though, keda ships them straight from china, sealed in the crates, with 2 aluminum shelves. Maybe hydrion made them switch it up for some reason?

I'll repeat, HFS sells a single dzf-6050 for 1850$ AFTER tax and they do free shipping. AI is way more pricey. Sounds like hydrion will do good bulk discounts as will HFS but once again don't call either of them and say that "so and so got this deal or that deal." Simply ask politely what quantity discounts are available. The long shoreman strike is over thank god but I know about 40 of the 50 HFS got in were gone quick. I'd only use ai if I wanted them NOW. AI is three times closer to me than HFS and wanted to charge me three times the shipping as the discount I got from HFS for picking them up myself. Once again don't demand that discount if you do that, just kindly ask if you can get it, please.

I was asked to not share my pricing but I will say I saved thousands going with HFS rather than ai, as I went in on a big order with some friends and ai was not entertaining much of a quantity discount. You can order straight from keda as well but I'm pretty sure on multiple ovens they will want to do it by freighter and will take 6 weeks. By air it will be much less but air shipments from china are always beat to shit and trying to deal with a warranty directly through china sounds like a nightmare!

Hydrion, like AI, mod the ovens according to the needs of the market unlike other ebay oven retailers- I wont put quotes on it but thats almost exactly what Mr Hydrion said. They must put that good ole american spit shine on that china just cant. It would help if the ovens were here tho, Guy said the stock is in china.

 

[A6 Grower]

Really? The guy told me the temps can very about 5°c on any 1 shelf, which is alot imo. Are you getting better results than that? I want to get one, I have AI's 1.9 coming next week hopefully so maybe the week after ill take a crack at one of these.

Guy also told me that no one that has ordered has cared to ask about temp uniformity (on any 1 shelf) which is weird considering a few of yall have one or more. Im trying to get them to take on the heat mats vs heat coils so if any of you have a good reputation with them drop them an email telling them you agree with the heat mats. You dont have to write a paragraph or essay, they just need some reassurance that this is the way to go.

Ya i didn't ask much about it as i already knew how it would be since i have an old 2 sided 1.9 from ai it was at least going to be better then that. The shelves kinda look and feel aluminum but could just be shitty thin SS.

I did inquire about using heat mats for the heated shelves but he said it would be hard to get a seal on the wires. I didn't mention heat mats on the outside would be a better solution then the heating coils. But honestly once the oven is on and to temp its very consistent throughout the whole oven. Shelves very just a couple degrees when i check them in the morning. While they are heating you can tell the back and sides get warmer before the front but not much and it even out in a couple hours.

I think the 4 sided heating is perfect for what we need, BHO isnt as sensitive as a lot of people think. Most of the times ive found if i have Good moisture free butane and moisture free material and a clean collection pot, there's almost nothing i can do to a slab to get it to budder up, always perfect shatter. Taste and color are affected slightly. I think a lot of issues get blamed on the oven when really its something prior.

 

[Sunfire]

I agree good sir! I was even scraping and whipping, mostly to spread it out evenly on the parchment, and I was getting an auto-shatter effect. I found I'm too lazy to take the extra time and care for shatter so I had to go up to 1 40F to get it to go honeycomb crumble. Taking moisture seriously, and quality of material is crucial.

 

[GSTMI]

big agree... i put my temp at 125, leave the oil in for an hour, pull it out real fast- laser temp says 106. a bit wtf.

Mine is ~13 - 14F off as well. If you read the manual you can 'tune in' your settings. Factory are obviously not always the best.

 

[Sunfire]

To be honest the manual the Chinese ovens come with it very hard to understand. I'm going to have to call to get instructions for the auto tune but that may not even be necessary. I've been told by many you usually have to have your set value about 5-10 degrees higher to achieve the temp you want at the parchment. It's no biggie. Just hit it with your laser IR gun and adjust accordingly.

Furry wall are you letting it warm up for a few hours before putting in parchments? And where are you on the yuba county thread bro? We need massive support this shit is getting crazy!

 

[A6 Grower]

And from the convo i had with hydrion it defiantly seems like they just order in bulk from keda and have a warehouse over there that adds and customizes them to their specs. Good idea really. Keda is a lot harder to work/talk with then hydrion lol

 

[SkyHighLer]

Really? The guy told me the temps can very about 5°c on any 1 shelf, which is alot imo. Are you getting better results than that? I want to get one, I have AI's 1.9 coming next week hopefully so maybe the week after ill take a crack at one of these.

Guy also told me that no one that has ordered has cared to ask about temp uniformity (on any 1 shelf) which is weird considering a few of yall have one or more. Im trying to get them to take on the heat mats vs heat coils so if any of you have a good reputation with them drop them an email telling them you agree with the heat mats. You dont have to write a paragraph or essay, they just need some reassurance that this is the way to go.

Ya i didn't ask much about it as i already knew how it would be since i have an old 2 sided 1.9 from ai it was at least going to be better then that. The shelves kinda look and feel aluminum but could just be shitty thin SS.

I did inquire about using heat mats for the heated shelves but he said it would be hard to get a seal on the wires. I didn't mention heat mats on the outside would be a better solution then the heating coils. But honestly once the oven is on and to temp its very consistent throughout the whole oven. Shelves very just a couple degrees when i check them in the morning. While they are heating you can tell the back and sides get warmer before the front but not much and it even out in a couple hours.

I think the 4 sided heating is perfect for what we need, BHO isnt as sensitive as a lot of people think. Most of the times ive found if i have Good moisture free butane and moisture free material and a clean collection pot, there's almost nothing i can do to a slab to get it to budder up, always perfect shatter. Taste and color are affected slightly. I think a lot of issues get blamed on the oven when really its something prior.

The idea of using silicone heaters on the outsides is interesting. You'd need to have large clear center sections of panel, how is the outer shell attached?

The cost is of a strip heater versus a silicone heater is about the same, but since the silicone heaters can be easily attached with the supplied adhesive backing, the oven should be less expensive.

Strip heaters
http://www.omega.com/pptst/CSH3_Series.html

Silicone heaters
http://www.omega.com/pptst/SRFR_SRFG.html

 

[Sunfire]

Ummm idk if on the outside is a good idea lol! There's 2 inches of "glass wool insulation" in between the outer shell and the inner shell.

 

[SkyHighLer]

Silicone heaters on the outsides of the inner walls...

I understand when you can make a statement that can't be twisted, you've hit a grand slam home run against Her Majesty, Lucifer. ;-)

The Marines have a similar ditty, when you can give an order that can't be misunderstood by those under you, you're ready for command.

Post edited for Sunfire's elucidation, lol...........

 

[Sunfire]

Lol I don't understand the lucien comment...? Anyways, I havnt heard back about what kind of heat system the keda ovens are. I bet they are coils though. I bet if we put together an order for a thousand we can get them to change to mats!!! Maybe a vacuum sealed double pane glass door too!

 

[Dab Strudel]

I'm super confused now...
The dzf-6050 is made by keda in china.
It doesn't matter who you buy it from, I'm pretty sure it's same ovens and are 3 sided heating. I just put in an inquiry to see if they use coils or mats though and I'll have a response by tomorrow I'm sure.

Idk how they got the stainless shelves in there though, keda ships them straight from china, sealed in the crates, with 2 aluminum shelves. Maybe hydrion made them switch it up for some reason?

I'll repeat, HFS sells a single dzf-6050 for 1850$ AFTER tax and they do free shipping. AI is way more pricey. Sounds like hydrion will do good bulk discounts as will HFS but once again don't call either of them and say that "so and so got this deal or that deal." Simply ask politely what quantity discounts are available. The long shoreman strike is over thank god but I know about 40 of the 50 HFS got in were gone quick. I'd only use ai if I wanted them NOW. AI is three times closer to me than HFS and wanted to charge me three times the shipping as the discount I got from HFS for picking them up myself. Once again don't demand that discount if you do that, just kindly ask if you can get it, please.

I was asked to not share my pricing but I will say I saved thousands going with HFS rather than ai, as I went in on a big order with some friends and ai was not entertaining much of a quantity discount. You can order straight from keda as well but I'm pretty sure on multiple ovens they will want to do it by freighter and will take 6 weeks. By air it will be much less but air shipments from china are always beat to shit and trying to deal with a warranty directly through china sounds like a nightmare!

We do not get ovens from KEDA. KEDA is located in the west of China, and our factory is in Shanghai. There are more than 100 oven factories in China, all using same model number DZF-6050 and DZF-6020, and it's not easy to identify the build quality if you don't visit the factory and check the product. Many prior customers like our product, and I am quite confident about quality.

Not so my good sir

 

[Sunfire]

Wow crazy, why the hell are they all using that same model number?

OK so I'm tripping out please help me!

So these keda ovens from HFS come with barbed kf25 fittings. The guy down at the shop was just like "oh we just use this hose here, it was a hard orange tube. I was going to get kf25 to flare fittings but when I saw the price I gasped. So i got some poly ethylene hose that was very stiff and hard and just hooked everything up with barbed fittings. I can't get them to pull past 25k microns on my vg200 and the analog gauge say 28.5. So I'm like shit, wtf! So I rigged on a proper appion vacuum hose and using that I can get the analog gauge to 29. I hooked the vg200 to a 1/4" charging hose off the 1/4" flare fitting on the pump cause the appion hose is on the 3/8 fitting on the pump. I did that because I read in the ravg manual that you shouldn't hook a digital gauge straight to a pump because it will give you falsely low readings. So my vg200 is saying 1000 microns and the analog gauge says less than -29hg, man wtf! I'm wondering if the vg200 is reading weirdly low because it's on 1/4" line that opposite of the 3/8" line from the pump?!?!

I opened up the side panel and say they have barbed fittings inside with no screw clamps. The analog gauge seems to show no leaks after hours though. I'm soooo fucken confused and depressed! I'm calling HFS tomorrow. Anyone got any advice please?

Maybe these keda ovens are shit after all, or maybe just the gauges suck, or maybe the poly ethylene hose permeates?

 

[Rickys bong]

Wow crazy, why the hell are they all using that same model number?

It seems common in China for many different companies to produce the same product. I've seen this in several industries. Many different companies all use the same drawings for a particular piece of machinery so you get the same model coming from a dozen different locations.

Which also results in varying degrees of quality.

Troubleshooting vacuum systems can be frustrating.
Start with the pump, make sure the pump is pumping into the sub 500 micron range by itself.

Go through every threaded connection on the oven and make sure they are tight, Chinese seem to have a superstition about making things tight. Liquid pipe sealants work better on applications where the treads are crap quality. Many Chinese products are a work in progress. Go through every single connection. The valve on the oven could also be leaking.

A new oven will may also need to be "baked out" to get rid of any oils from manufacture. Clean the inside with acetone and crank the temp up to 200 with the pump running. It could take several hours...

25k microns is 25mm or 25 torr. That is probably a leak if it won't pump below that.... Door seals are suspect, make sure the sealing face is flat and lube the door seal with some food grade grease.

Put a valve on the pump and tee your micron gauge somewhere on the oven. Let it pump for a few hours and then close the valve on the pump. The micron gauge may go up a bit initially, but if it continues to rise over an hour you've still got a leak somewhere.

Your supplier won't be able to help you... You''l need to figure it out on yer own.

RB