584 / 2440
Hydraulic
Excavators
7
Edition 47 7-255
Production EstimatingTables
●
Trenching Production
Cubic Meters/Yards per 60 Minute Hour*
ESTIMATED
CYCLETIMES
ESTIMATED BUCKET PAYLOAD** — LOOSE CUBIC METERS/YARDS
ESTIMATED
CYCLETIMES
CycleTime
5.0 6.0
7.0
8.0 9.0 10.0 11.0 12.0 13.0 14.0 15.0
Cycles
Per
Min.
Cycles
Per
Hr.
Seconds Min.
15.0 0.25 1200 1440 1680 1920 2160 2400 2640 2880 3120 3360 3600 4.0
240
17.1 0.29 1050 1260 1470 1680 1890 2100 2310 2520 2730 2940 3150 3.5
210
20.0 0.33 900 1080 1260 1440 1620 1800 1980 2160 2340 2520 2700 3.0
180
24.0 0.40 750 900 1050 1200 1350 1500 1650 1800 1950 2100 2250 2.5
150
30.0 0.50 600 720 840 960 1080 1200 1320 1440 1560 1680 1800 2.0
120
35.0 0.58 510 612 714 816 918 1020 1122 1224 1326 1428 1530 1.7
102
40.0 0.67 450 540 630 720 810 900 990 1080 1170 1260 1350 1.5
90
45.0 0.75 390 468 546 624 702 780 858 936 1014 1092 1170 1.3
78
50.0 0.83 360 432 504 576 648 720 792 864 936 1008 1080 1.2
72
55.0 0.92 330 396 462 528 594 660 726 792 858 924 990 1.1
66
60.0 1.00 300 360 420 480 540 600 660 720 780 840 900 1.0
60
Cubic Meters/Yards per 60 Minute Hour*
ESTIMATED
CYCLETIMES
ESTIMATED BUCKET PAYLOAD** — LOOSE CUBIC METERS/YARDS
ESTIMATED
CYCLETIMES
CycleTime
16.0 17.0 18.0 19.0 20.0 21.0 22.0 23.0 24.0 25.0
Cycles
Per
Min.
Cycles
Per
Hr.
Seconds Min.
15.0 0.25 3840 4080 4320 4560 4800 5040 5280 5520 5760 6000 4.0
240
17.1 0.29 3360 3570 3780 3990 4200 4410 4620 4830 5040 5250 3.5
210
20.0 0.33 2880 3060 3240 3420 3600 3780 3960 4140 4320 4500 3.0
180
24.0 0.40 2400 2550 2700 2850 3000 3150 3300 3450 3600 3750 2.5
150
30.0 0.50 1920 2040 2160 2280 2400 2520 2640 2760 2880 3000 2.0
120
35.0 0.58 1632 1734 1836 1938 2040 2142 2244 2346 2448 2550
1.7
102
40.0 0.67 1440 1530 1620 1710 1800 1890 1980 2070 2160 2250
1.5
90
45.0 0.75 1248 1326 1404 1482 1560 1638 1716 1794 1872 1950
1.3
78
50.0 0.83 1152 1224 1296 1368 1440 1512 1584 1656 1728 1800
1.2
72
55.0 0.92 1056 1122 1188 1254 1320 1386 1452 1518 1584 1650
1.1
66
60.0 1.00 960 1020 1080 1140 1200 1260 1320 1380 1440 1500
1.0
60
Job Efficiency Estimator
WorkTime/Hour
Efficiency
60 Min
100%
55
Min
91%
50
Min
83%
45
Min
75%
40
Min
67%
*
*Actual hourly production = (60 min. hr. production)
×
(Job Efficiency Factor)
**Estimated Bucket Payload = (Amount of Material in the Bucket)
= (Heaped Bucket Capacity)
×
(Bucket Fill Factor)
NOTE:
For estimating truck loading production include approximately 0.7 minutes for truck
exchange time.