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Edition 47 19-81
Rippers
Estimated Ripper Production Graphs
●
D8R/D8T
●
D9R/D9T
CONSIDERATIONS FOR USING
PRODUCTION ESTIMATED GRAPHS:
●
Machine rips full-time — no dozing.
●
Power shift tractors with single shank rippers.
●
100% efficiency (60 min hour).
●
Charts are for all classes of material.
●
In igneous rock with seismic velocity of 8000 fps
(2450 mps) or higher for the D11T, and 6000 fps
(1830 mps) or higher for the D10T2, D9R/D9T and
D8R/D8T, the production figures shown should be
reduced by 25%.
●
Upper limit of charts reflect ripping under ideal con-
ditions only. If conditions such as thick lamination,
vertical lamination or any factor which would adversely
affect production are present, the lower limit should
be used.
B
A
2
3
4
5
6
7
8
250
500
750
1000
1250
1500
1750
2000
2250
2500
2750
3000
3250
1
2
250
500
750
1000
1250
1500
1750
2000
2250
2500
B
2 3 4 5 6 7 8
250
500
750
1000
1250
1500
1750
2000
2250
2500
2750
3000
3250
250
500
750
1000
1250
1500
1750
2000
2250
2500
1
2
A
SEISMICVELOCITY (in meters per second x 1000)
KEY
A — IDEAL
B — ADVERSE
SEISMICVELOCITY (in feet per second x 1000)
D9R/D9TWITH SINGLE SHANK
PRODUCTION (BCY/hour)
PRODUCTION (Bm
3
/hour)
SEISMICVELOCITY (in meters per second x 1000)
SEISMICVELOCITY (in feet per second x 1000)
D8R/D8TWITH SINGLE SHANK
PRODUCTION (BCY/hour)
PRODUCTION (Bm
3
/hour)