PDF Publication Title:
Text from PDF Page: 091
MAXIMUM MOISTURE LOSS PER DAY In the manual which accompanies their dry kilns, Nyle states that “Drying Group 1 woods at a rate of less than 5% per day may result in mold or staining of the lumber. Drying Group 3 woods at a rate greater than 3.5% per day may result in checking or other degrade to the lumber.” That’s excellent advice. Two tables have been published to help you determine if you are drying at a safe rate. The first list of species and thicknesses was published by Dr. Gene Wengert and has been reproduced in numerous publications since at least 1980. His recommendation for 8/4 walnut has become slightly more conservative over time, and the latest version of his recommendations is published in Drying Hardwood Lumber (See Table 9). Table 9. Safe drying rates for North American hardwoods SPECIES Elm, American (White) Maple, hard Maple, soft (sapwood) Oak, red, upland Oak, red, lowland Oak, white, upland Sweet gum Tupelo/Black gum Walnut Yellow-poplar MAXIMUM RATE OF MC LOSS PER DAY (%) Ash, White Beech Birch, yellow Cherry 4/4 LUMBER 10.4 4.5 6.1 5.8 10.4 6.5 13.8 3.8 1.0–3.8 2.5 5.3 10.9 8.2 13.8 8/4 LUMBER 4.1 1.8 2.4 2.3 4.1 2.6 5.5 1.5 – 1.0 2.1 4.3 3.3 5.5 91PDF Image | HARDWOOD DRY KILN OPERATION A MANUAL FOR OPERATORS OF SMALL DRY KILNS
PDF Search Title:
HARDWOOD DRY KILN OPERATION A MANUAL FOR OPERATORS OF SMALL DRY KILNSOriginal File Name Searched:
FOR128.pdfDIY PDF Search: Google It | Yahoo | Bing
5,000 BF Shipping Container Lumber Dry Kiln For Quality Lumber The 5,000 BF container kiln consists of one 40 foot high-cube aluminum shipping container... More Info
Shipping Container Lumber Dry Kilns by Global Energy Global Energy designed and developed the container kiln back in 1991. The purpose is to give access to portable sawmill owners, furniture makers, and small business the value added profit of dry kiln lumber and quality hardwoods... More Info
Vacuum Kiln Conversion Kit for Lumber and Wood Dry Kilns Convert your existing conventional dry kiln into a fast drying vacuum kiln. Similar to vacuum bagging in the boat building and aircraft industry, we have come up with a proprietary process which allows you to build a very simple vacuum kiln at a fraction of the price, and without the intensive conventional metal chamber structure... More Info
Vacuum Pump Cart System for Bagging Clamping Wood Drying and more Vacuum Cart with 2HP Pump and Dual Pistons with multiple multiplex vacuum ports and liquid reservoir... More Info
Vacuum Bagging Basics Vacuum bagging is a method of clamping, which has traditionally been used in the composites industry, but can also be used for vacuum drying materials, including wood products... More Info
CONTACT TEL: 608-238-6001 Email: greg@globalmicroturbine.com (Standard Web Page)