Dabpress Rosin Plates

elmomuzz

That just happened...
hobbess, just something for you to consider. those models like dp-bj6t35 or dp-bj3t33 where the bottle jack and lever is attached to the system, i often see the press almost tilt or fall over as you are applying pressure. unless you have it bolted down or something, i could see that being annoying as hell every time you press. check the link below and at the 3 minute mark and you can see what i'm talking about. i have the dp-hr10t35v 10-Ton press with a separate pump and i've been very happy. it is $499 (minus 5%) and you have to buy a external pump (strongway pump for $63 on amazon) but it's something to consider before buying. i think its worth it considering how often it will be used. either way, you are gonna love your new toy. good luck


Just clamp down the back of the press. It doesn’t move.
 

Hobbess

Relaxed
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Thanks for all the advice everyone!

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I'm all but set on the dp-bj6t35 and now I want to be sure that I'm ordering all the supplies I need:

Bags - what size/micron for 3" x 5" press plates?

dabpress-2x4-120-rosin-filter-bag-bottle-tech-driptech-bags_1024x1024.jpg


Rosin collection kit

dt-1_grande.jpg


Pre press molds - what size would you suggest?

Dabpress-2x4-rosin-press-mold-anodized-min_grande.jpg


Parchment paper - not advertised on DabPress site, where do you folks buy?

Anything I'm forgetting anything?

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https://www.dabpress.com/collections/prepress-mould

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MonkeyTime

Well-Known Member
I use the 30mm round pre-press with 2x4 bags (cut off bottom seam and then cut in half) with either 1 or 2 pucks per press (1 for 3-6g or 2 for up to 14g) using flower. Kirkland parchment from Costco has worked well for me.

@Hobbess I'm the exact same routine as Biz, 5-6gr per press is a full stuff depending on material for 1/2 of a bag.

I'm usually one puck per press.
 

invertedisdead

PHASE3
Manufacturer
The BJ6 ton is a great press, I've probably squished at least 2 pounds and it hasn't missed a beat.

Been on a bit of a live sauce kick these last few months but after experiencing some bouts of harsh vapor, presumably from the high terpene content, I'm back on the good glue with a smoother vapor experience! Pressed some White Widow rosin the other day, nice colas, not a huge yield but that classic stinky Widow flavor! :p
 

Baron23

Well-Known Member
I use the 30mm round pre-press with 2x4 bags (cut off bottom seam and then cut in half) with either 1 or 2 pucks per press (1 for 3-6g or 2 for up to 14g) using flower. Kirkland parchment from Costco has worked well for me.
I do the same....cut the seam off and insert a pressed puck, trim and fold, and squish...seems to work well for 7 g.
 

invertedisdead

PHASE3
Manufacturer
Are y'all pre-pressing under pressure (I use a vice) or just the 'body weight lean'? My kid freaked out when I pre-pressed his 1/8th into what looked like a green tums.

I only use body pressure, but if the material is wet and/or fluffy it can require a bit more pressure or it can expand past my bag width or plate height.
 

starvin'marvin

New Member
Are y'all pre-pressing under pressure (I use a vice) or just the 'body weight lean'? My kid freaked out when I pre-pressed his 1/8th into what looked like a green tums.
me personally, i just use my body weight. i made a simple jig where i screwed 3 pieces of 2x4 lumber (@10 inches long) on top of each other and then drilled out a 1 1/2 inch wide hole about 3 1/2 inches deep. i just put the pre-press mold in the hole and fill it up with bud. put the jig on the floor and stand on it for like 15-20 seconds. cant get much easier than that. i thought about buying an arbor press but don't even think its necessary. thoughts?
 

Hobbess

Relaxed
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I ordered my dabpress and supplies a few minutes ago - May 1. I'll post some pics when it comes in to give you folks an idea of how long the order process takes.

Thanks to everyone for their advice, you made the process simple.

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:bigleaf:

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1969

New Member
Alright, here's my "somewhere in the ballpark" PSI calculations assuming the Cylinder Effective Area is somewhere in the 14.5 cm/2 neighborhood. I've looked at a few cylinders that are all just a bit taller than what's used with the dabpress hr10t35v.

This is only my guess at this point
, but I think it's worth putting out there as it should be useful until the true data comes in!

1KG=14.95PSI=0.1MPa
So 8900PSI is 625kg/cm2

Diameter of hydraulic cylinder: ??cm
Square/cm = 14.5?

So 8900 psi ( read on gauge ) = 14.5? x 625 = 9062kg = 9.98 Ton = 19960 pounds

So lets say that you wanna apply 1500 PSI to an 8 sq/in puck made using 2x4" pre-press mold, you need 12000 pounds of pressure.

5437 PSI on gauge = 14.5? x 375 = 5443kg = 6 tons = 12000 pounds

For a 1.75" cylinder shaped puck from using 30mm pre-press mold, 2.4 sq/in at 1500 PSI you need 3600 pounds of pressure.

1593 PSI on gauge = 14.5 x 112 = 1633kg = 1.8 tons = 3600 pounds

For a 2.5" cylinder shaped puck from using 40mm pre-press mold, 4.9 sq/in at 1500 PSI you need 7350 pounds of pressure.

3280 PSI on gauge = 14.5 x 230 = 3335kg = 3.67 tons = 7350 pounds

Useful links -

PSI to kg cm/2 chart - https://www.sensorsone.com/psi-to-kg-cm2-conversion-table/

I hope I didnt screw any of that math up, I'm a bit out of my element with this but think it's correct?

Basically you will want to figure out the sq/in of your puck size, which means generally you'll have a pre-press mold or filter to contain the puck. The 30mm mold will flatten out to approx 1.75" (2.4 sq/in) round puck, the 40mm will flatten out to about 2.5" (4.9 sq/in). Rectangle pucks are easier math, length x width = sq/in puck size.

@JCat likes his rosin at 1500 PSI and it is definitely a sweet spot, can obviously press higher or lower pressure depending on your preference, but for the sake of giving PSI for buds without overpressing 1500 PSI is a nice spot.
Brain fog here. How do you derive kg/cm2, i. e., the number following 14.5 x?. How do you come up with 625,375,112 etc in your examples. My head thanks you.
 

psychonaut

Company Rep
Company Rep
Brain fog here. How do you derive kg/cm2, i. e., the number following 14.5 x?. How do you come up with 625,375,112 etc in your examples. My head thanks you.

Lets not damage our heads any longer, that content is probably no longer relevant to the calculations we've simplified it now. It was originally a measurement of the cylinder effective area but there's a simplier way.

Now we are using cylinder effective area x pressure in cylinder. This is not exact but fairly close.

2.25 x (pressure read on gauge) = total pounds of force applied

We were using metric before and doing some other calculations to convert it over to standard for inches, this is a much easier measurement and honestly I think it's a little on the high side but it makes the math easier and I dont believe the calculated PSI to be very far off from actual PSI.
 

1969

New Member
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Thanks Bizwaxzion!

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Lets not damage our heads any longer, that content is probably no longer relevant to the calculations we've simplified it now. It was originally a measurement of the cylinder effective area but there's a simplier way.

Now we are using cylinder effective area x pressure in cylinder. This is not exact but fairly close.

2.25 x (pressure read on gauge) = total pounds of force applied

We were using metric before and doing some other calculations to convert it over to standard for inches, this is a much easier measurement and honestly I think it's a little on the high side but it makes the math easier and I dont believe the calculated PSI to be very far off from actual PSI.
2.25 comes from where? Cylinder effective area? Thanks.
 

psychonaut

Company Rep
Company Rep
2.25 comes from where? Cylinder effective area? Thanks.

That's correct. These hydraulic hand pumps can operate with different tonnage cylinders, they all have their own calculations. With commercial grade 10000 PSI pumps you can operate a 5-50 ton cylinder, the oil capacity determines the compatibility in most cases.
 

LongDraw

Well-Known Member
Man o man am i loving my dabpress.

Did another press today, but now used my good stuff. This was some gorilla glue, i have several other strains but don't know the name of most sadly.

Kief press i don't think i will be using, made the pucks tall. I used the large prepress that came with my bundle. I took the large bud and just tore it into a few chunks laid in there and used handpressure. Kept it together good enough and worked well.

So first puck was about 1.5 grams. Pressed at arouond 2k on the gauge, not sure what this came out to at the puck still was to lazy to figure it out. Then did another puck, with about 1.6 grams, at same pressure. Temp for both was 200 degrees farenheit, first puck pressed at 2.5 minutes and 2nd puck at 3 minutes. For both i gave 30 seconds with just a little pressure to warm things up.

Total return from the two was .60 grams.

I then took the pressed pucks broke up into 4 pieces staked them and repressed at 220 degrees F, and around 3.5k on the gauge i think, for 2.5 minutes. Returned another .10 grams.

Total return .7 grams out of maybe 3.1 grams, so about 23% return. I am very happy :)

This stuff looks good, darker gold. Much more sticky like then shatter, which was what my last stuff gave me.

Can't wait to taste it tonight. I haven't even tasted rosin made from good flower yet, but concentrate in my opinion can't hold a candle to the flavor you get from rosin.

Also, the table is working out very well. I resituated how i use it and now just slide it out of the closet, plug in and it is ready to go. I had seen someone else post they found the table for 50 dollars. I am really happy with my purchase at 70, so for 20 less that is pretty amazing. Figure for what i need to use it for it should last for a good amount of time.

Thanks again everyone, happy pressing/squishing.
 

psychonaut

Company Rep
Company Rep
I have a question I recently discovered that oil leaks out of 10-Ton Hydraulic Cylinder... see picture... should i tighten the connection or what should I do?

does it harm if oil is leaking out... should I refill oil... and how?

2czt3c7.png


http://i67.tinypic.com/2czt3c7.png

Since we discussed this in PM wanted to put a reply here for any others who may experience issues. It sounds like the thread tape needs to be removed and reapplied. You'll want to open the release valve on the pump to make sure no pressure is in the line, then close the release valve and disconnect the hose from the cylinder. Verify all the bolts on the bottom cylinder mount are tight. Tilt the press forward in drip tech position, then use a crescent wrench to remove the female coupler on the back of the cylinder. Once the coupler is removed, remove the tread tape on the fitting, and reapply new tape. Finally reinstall the coupler in the back of the cylinder and tighten it completely, connect the hose back up to the cylinder and retest for leaking.

Depending on how much fluid leaked out, you may want to empty the hydraulic fluid from the pump, measure it, then refill with the manufacturers recommended amount.

Also, depending on how much use the pump gets, the oil should be checked once per year and replaced if heavy use in a production environment.

@LongDraw glad you are getting along well with your press! It is a lot of fun, I will be soon pressing some skunk #1 that I have big hopes for! I am glad to see you moving into newer material, you will notice a difference in terpene content and effects =)
 
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