Inchworm processor - N.B.C.C. Miramichi vocational forest worker program

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• Subject: Inchworm processor - N.B.C.C. Miramichi vocational forest worker program
• From: Al K ingston <redpine@NBNET.NB.CA>
• Date: Fri, 8 Mar 1996 19:27:24 -0400
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INCHWORM PROCESSOR
IF YOU ARE IN THE BUSINESS OF HARVESTING TREES PLEASE READ THIS


This is study of the production of the Inchworm processor completed by
N.B.C.C. Miramichi vocational forest worker program

STAND INFORMATION

Mature to over mature spruce and jack pine stand 75+ years old.

SIGHT DESCRIPTION


Flat, level, dry site located at the Miramichi -N.B.C.C.-Forest Training
center in New Brunswick Canada
PREPARATION FOR STUDY

The trees were felled directionally with chainsaws.approx aria 15 meters
deep by 250 meters long.
DATA   RESULTS  OF STAND HARVESTED

Volume-   Spruce-           64.750 m 3/ha    12.40 Cords/Acre-  38.1%
          Jack Pine --      101.150 m 3/ha   20.14 Cords/Acre-  61.9 %

Total                      169.900m 3/ha     32.54 Cords/acre   100.0


Density-    (using 1/100 ha plots)

Spruce          450/ha         180/ac       50%
Jack Pine       400/ha         160/ac       44.5%
Maple            25/ha          10/ac        2.8%
W.Burch          25/ha          10/ac        2.8%
                --------------------    ----------
Total           900/ha         360/ac       100%


Basal Area                 (2MBAF/AV. DBH

                Spruce      13 m2/ha  39.3%  20.8 cm

            Jack Pine      20m2/ha   60.7%   23.9 cm

------------------------ ----------------
TOTAL                  33 M2/ha   AV. DBH 22.7





                         DATA RESULTS OF PRODUCTION TEST


                      Cutting 8' Pulpwood  /16' 8"top sawlogs

TOTAL TIME AVAILABLE

processing and moving :      360 min.       6.00 hours   79.1%

Down Time (Repair Chain)      23 min.       .38            5.0%

Lunch Break & Discussion      72 min.       1.20 hours  15.8%

                   TOTAL     455 min.       7.58 hours   100.0


PRODUCTION RESULTS


Saw Logs --16'
170 Pieces        33.930 M2  =     58.20 m3 stacked =   16.06 cords

Pulpwood   8'
843 Pieces        16.843 m3    =       28m3 stacked =    7.97  cords

Hardwood pulpwood 8'
10 Pieces         .222m3      =      .44m3 stacked  =      .12  cords

TOTAL             50.995m3    =     87.53m3 stacked =        24.15Cords

PRODUCTION / HOURS WORKED

Total      `8.499m3/hr    =     14.59m3 stacked /hr            = 4.03cds/hr


Average Tree/hr production      49.7 Trees/hr

Average  m3 /tree produced    .171m3/tree

Average bolts/tree produced    4.1 Bolts of 2.44  length/tree



Conclusion: The INCHWORM, porter, felling,  cost $61.56 /hr   therefore it
cost $15.27 to cut a cord of wood. Or $4.22 to cut 1 cubic meatier stacked.


The INCHWORM cut bolts to proper length and limbed well  I would expect the
production following a feller buncher would be in the order of 6.0 cds per
hour . this is the next test for the INCHWORM I will post this information
when it available. By the way theINCHWORM cost only $60,000 CANADIAN.

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