Johnson improved the overall debarking process by 20% which represents a net saving of over $200,000 for a mill that consumes a volume of 400,000 cubic meters of logs on a yearly basis.
PRESENTATION OF THE RESULTS
Johnson Enterprises Inc. contracted Forintek Canada Inc. for the purpose of evaluating the performance on their debarking tools at a high profile sawmill in Quebec.
This study aimed mainly at quantifying – by the means of debarking chosen log samples – the percentage of fiber in bark- the percentage of bark in chips – and the losses of revenues directly linked to the loss of fiber during the debarking process.
This comparison test was performed under winter conditions, involving dry and frozen wood using the debarker at the mill which had been equipped with the tools of a competitor. The same exercise was repeated on the same debarker with the tools of Johnson Enterprises inc.
FORINTEK CANADA EVALUATION
$30,400.00
GAIN
1x4x4x1900
RESULT
Result of an added volume of one truckload of woodchips per day
$91,200.00
GAIN
3x4x4x1900
RESULT
Result of an added volume of one truckload of woodchips per day
$152,000.00
GAIN
1x4x4x5x1990
RESULT
Result of an added volume of one truckload of woodchips per day
Result: 2x4x5x5x1900 gain $ 304,000.00
Result of an added volume of two truckloads of woodchips per day
SCENARIOS
An improved debarking process at a sawmill equipped with three debarkers would generate important financial gain in decreasing fiber content in bark content.
- The cost per bone dry ton of 1 trailer load of woodchips approximates $100
- 1 trailer load contains 19 bone of dry tons
- The value of 1 woodchip trailer load equals to $1900.00
Financial impacts, caused by the loss of fiber in bark and fiver damage during the debarking process:
FIBER LOSS IMPACTS FINANCIAL OUTCOME
Loss volume on logs (%)
Remaining bark (%)
Fiber in bark (%)
Bark in chips (%)
EVALUATIONS
3.43
11.5
21.8
1.18
EXISTING DEBARKER
2.08
4.0
15.8
0.68
JOHNSON TOOLS
-39.40%
-65.20%
-27.50%
-42.40%
J VS ED VAR (%)
DRY WOOD
Loss volume on logs (%)
Remaining bark (%)
Fiber in bark (%)
Bark in chips (%)
EVALUATIONS
5.36
0.6
23.3
1.19
EXISTING DEBARKER
4.28
0.4
12.2
1.21
JOHNSON TOOLS
-20.10%
-33.30%
-47.60%
-1.70%
J VS ED VAR (%)
FROZEN WOOD
44,736.84$ (Loss)
10,000/19bdt per trailer x penalty 85.00$
Supply of 10,000BDT=
1900$-1815$ = 85.00$
Loss:
18,15$ BDT
Payable to sawmills:
5% bark content in woodchips represents a penalty of 4.5% of 19BDT (risk of losing the contract)
13,157.89$ (Loss)
10,000/19bdt per trailer x penalty 25.00$
Supply of 10,000BDT=
1900$-1875$ = 25.00$
Loss:
18.91 BDT
Payable to sawmills:
2% bark content in woodchips represents a penalty of 1.5% of 19BDT
4,736.84$ (Loss)
10,000/19bdt per trailer x penalty 9.00$
Supply of 10,000BDT=
1900$-1891$=$9.00$
Loss:
18.91 BDT
Payable to sawmills:
1% bark cotent in woodchips represents a penalty of 0,5% of 19 bones dry ton (BDT)
Level of tolerance of bark in woodchips according to a reputable paper mill during winter: 0.75%
Level of tolerance of bark in woodchips according to a reputable paper mill during summer: 0,50%
Bark remaining on logs during the debarking process financial impacts, caused by an abundance of bark in woodchips:
ABUNDANCE OF BARK IN WOODCHIPS IMPACT FINANCIAL OUTCOME
JOHNSON PRODUCTS
COMPETITION PRODUCTS
