The Forestry Forum is sponsored in part by:

iDRY Vacuum Kilns


Forestry Forum
Sponsored by:


TimberKing Sawmills



Toll Free 1-800-582-0470

LogRite Tools



Norwood Industries Inc.




Your source for Portable Sawmills, Edgers, Resaws, Sharpeners, Setters, Bandsaw Blades and Sawmill Parts

EZ Boardwalk Sawmills. More Saw For Less Money!

STIHLDealers.com sponsored by Northeast STIHL


Woodland Sawmills

Peterson Swingmills

 KASCO SharpTech WoodMaxx Blades

Turbosawmill

Sawmill Exchange

Michigan Firewood, your BRUTE FORCE Authorized Dealer

FARMA


Council Tool

Baker Products

ECHO-Bearcat

iDRY Wood Lumber Vacuum Drying for everyon

Baltic Abrasives Technologies Nyle Kiln Dry Systems




Author Topic: Resawing , drying , dressing S. American hardwoods  (Read 601 times)

0 Members and 1 Guest are viewing this topic.

Offline ellmoe

  • Senior Member x2
  • *****
  • Posts: 1427
  • Age: 62
  • Location: Bushnell,Florida
  • Gender: Male
  • I need to edit my profile!
    • Share Post
Resawing , drying , dressing S. American hardwoods
« on: March 10, 2019, 07:18:11 AM »
  Being in Florida we are " touched " by Cent. and South America. Whether it is cheap ( in both uses of the word ) pine import killing markets, boa constrictors and walking catfish in the 'glades , or Brazilian peppers taking over drained cypress swamps, the influence is very apparent. There are benefits to , such as opportunities to work with exotic woods ( and string bikinis ! :D ). I have been approached about resawing , drying , and planing containers of plantation grown hardwoods. Several species are potentially involved , included are teak , purpleheart , and Ipe . I have planed Ipe before , strictly carbide knives , but have not worked with any of the other species. Pricing and capabilities are my biggest concerns , especially , but not limited to , kiln drying. I will be resawing square cants , for now the largest being 10 x 10's , most smaller , I believe . Products will be mostly 4/4 and 5/4 boards. The cants will be a few months old , so basically green. Normally , I try to air dry my lumber before putting in kiln , but customer is in a hurry to get into the marketplace . I recently bought a Idry vacuum kiln and have a Koetter , there will be production challenges with just them. Can anyone give some thoughts on how these woods will dry ? Will it be like trying to dry green hickory , cost prohibitive to go from saw to kiln , or any other challenges you can see ? To be totally truthful , I looking forward to playing with some purpleheart  myself. Thanks. 
Thirty plus years in the sawmill/millwork business. A sore back and arthritic fingers to prove it!

Online longtime lurker

  • Senior Member x2
  • *****
  • Posts: 1260
  • Location: QLD, Australia
  • Gender: Male
    • Share Post
Re: Resawing , drying , dressing S. American hardwoods
« Reply #1 on: March 10, 2019, 08:51:41 AM »
I've sawn and dried teak, assuming that its real teak thats been planted down there and not some other "teak".

Not bad sawing, firm without being hard but tends to carry silica depending on the soil it was grown in (like a lot of tropical hardwoods) so it can take the edge of a saw faster than usual. TCT or stellite would be the way to go: IMHO TCT is better with "hard" like Ipe but stellite is better if the issue is abrasive like silica laden teak.

Drying wise the teak was okay, I tend to conservative schedules but yeah.... no worries at all.
I suspect ipe and purpleheart will be similar to a lot of our timbers in that density range in that you need slow initial drying to prevent surface checking but thats just a guess based on density and shrinkage rates: let me know how it goes.
 
The quickest way to make a million dollars with a sawmill is to start with two million.

Offline ellmoe

  • Senior Member x2
  • *****
  • Posts: 1427
  • Age: 62
  • Location: Bushnell,Florida
  • Gender: Male
  • I need to edit my profile!
    • Share Post
Re: Resawing , drying , dressing S. American hardwoods
« Reply #2 on: March 10, 2019, 09:18:22 AM »
LL , thanks for the reply. I have read about the silica problem with teak , so I anticipated having to use stellite blades and carbide planer knives , but have no clue how much a problem this will be . I have some experience moulding S4S Ipe into RED, nasty stuff  ( dust , mostly ), definitely needs carbide . Thanks for the heads up on TCT for Ipe , I'll definitely look into it.
If this comes about I will post about it.
Thirty plus years in the sawmill/millwork business. A sore back and arthritic fingers to prove it!

Offline customsawyer

  • Senior Member x2
  • *****
  • Posts: 4763
  • Age: 50
  • Location: Rentz, Ga.
  • Gender: Male
    • Share Post
    • The Custom Sawyer
Re: Resawing , drying , dressing S. American hardwoods
« Reply #3 on: March 11, 2019, 03:50:36 AM »
I did some Anigray (sp) from South Africa for a customer. Drying wasn't to bad but as you already learned had to have carbide to go through the planer due to the silica. I would want to do a test run for the customer before I committed to all of it. Most of the time I have tried to deal with anybody doing shipping containers of wood. They want you to do all the work, take all the risk and they get all the money.
Two LT70s and to much other support equipment to mention.
www.thecustomsawyer.com

Offline ellmoe

  • Senior Member x2
  • *****
  • Posts: 1427
  • Age: 62
  • Location: Bushnell,Florida
  • Gender: Male
  • I need to edit my profile!
    • Share Post
Re: Resawing , drying , dressing S. American hardwoods
« Reply #4 on: March 11, 2019, 07:52:03 AM »
Thanks Jake. Test run , for each species , is definitely going to happen . This is a new venture , they , as well as me , are trying to figure costs. How was your experience in drying the Anigre ?
Thirty plus years in the sawmill/millwork business. A sore back and arthritic fingers to prove it!

Offline GeneWengert-WoodDoc

  • Senior Member x2
  • *****
  • Posts: 2530
  • Location: Bishop, GA
  • Gender: Male
  • Author of "Sawing Hardwood Lumber"
    • Share Post
    • Book on Sawing hardwood Lumber
Re: Resawing , drying , dressing S. American hardwoods
« Reply #5 on: March 15, 2019, 09:15:01 PM »
Common name is Anigre, Other names include Anegre, Aniegre, Aningeria (and various spellings)
Scientific Name: Genus is Pouteria.  There are several different species in this group.  It is from Africa.

Silica is common in many tropical hardwoods.  The silica quickly...very quickly...dulls tools.
Gene - Author of articles in Sawmill & Woodlot and books: Drying Hardwood Lumber; VA Tech Solar Kiln; Sawing Edging & Trimming Hardwood Lumber. And more

Offline customsawyer

  • Senior Member x2
  • *****
  • Posts: 4763
  • Age: 50
  • Location: Rentz, Ga.
  • Gender: Male
    • Share Post
    • The Custom Sawyer
Re: Resawing , drying , dressing S. American hardwoods
« Reply #6 on: March 16, 2019, 08:59:51 AM »
When you say quickly you are not joking. It took 5 boards to dull my newly sharpened HSS knifes to the point that they looked like a butter knife. Had to spend $1600.00 on carbide knifes to make the $1200.00 and change I charged the customer. ::) Tuition at the school of hard knocks is high.
Drying was not a issue. It was already dried to 12%. Since it was being installed in a cabin in Colorado the customer insisted on it being dried to 6%. So I did. As it was already at 12% I had no issues taking it down the last little bit. Wish I had more information but that is all I know.
Two LT70s and to much other support equipment to mention.
www.thecustomsawyer.com

Offline ellmoe

  • Senior Member x2
  • *****
  • Posts: 1427
  • Age: 62
  • Location: Bushnell,Florida
  • Gender: Male
  • I need to edit my profile!
    • Share Post
Re: Resawing , drying , dressing S. American hardwoods
« Reply #7 on: March 16, 2019, 06:55:10 PM »
Thanks , Jake. I have one set of carbides ( from planing Ipe ) , but will need more.
Thirty plus years in the sawmill/millwork business. A sore back and arthritic fingers to prove it!

Online K-Guy

  • Full Member x2
  • ***
  • Posts: 103
  • Location: Bangor, ME
  • Gender: Male
    • Share Post
    • http://www.nyle.com/
Re: Resawing , drying , dressing S. American hardwoods
« Reply #8 on: March 18, 2019, 02:01:24 PM »
Ellmoe
Kiln Drying
For Teak.  Kiln schedule T10-D4S is suggested for 4/4 stock and T8-D3S for 8/4.

For Purpleheart. Kiln schedule T6-D2 is suggested for 4/4 stock and T3-D1 for 8/4.

For Ipe. Kiln schedule T3-C1 is suggested for 4/4 stock.
Nyle Kiln Sales & Service

Offline ellmoe

  • Senior Member x2
  • *****
  • Posts: 1427
  • Age: 62
  • Location: Bushnell,Florida
  • Gender: Male
  • I need to edit my profile!
    • Share Post
Re: Resawing , drying , dressing S. American hardwoods
« Reply #9 on: March 18, 2019, 09:37:55 PM »
Thank you , K.
Thirty plus years in the sawmill/millwork business. A sore back and arthritic fingers to prove it!


Share via delicious Share via digg Share via facebook Share via linkedin Share via pinterest Share via reddit Share via stumble Share via tumblr Share via twitter

xx
Drying American Beech

Started by adkterp on Drying and Processing

3 Replies
1561 Views
Last post September 04, 2005, 03:54:20 PM
by Rockn H
xx
Speed drying/seasoning American Hornbeam?

Started by malignity on Drying and Processing

42 Replies
5201 Views
Last post January 29, 2016, 06:55:08 PM
by Clark
xx
Resawing

Started by jim king on Sawmills and Milling

12 Replies
2548 Views
Last post May 03, 2010, 12:20:00 AM
by Meadows Miller
xx
Resawing 4/4 walnut.

Started by firefighter ontheside on Sawmills and Milling

12 Replies
1395 Views
Last post May 16, 2018, 10:10:39 AM
by Magicman
 


Powered by EzPortal