927 / 2440
13-12 Edition 47
Rotary Mixers
Weight of Materials
Stabilization/Reclamation Production
WEIGHT OF MATERIALS
LOOSE
IN-PLACE
Material
kg/m
3
lb/yd
3
kg/m
3
lb/yd
3
Clay
— Dry
1480
2500
1840
3100
—Wet
1660
2800
2080
3500
Clay and Gravel
— Dry
1420
2400
1660
2800
—Wet
1540
2600
1840
3100
Sand and Gravel
— Dry
1720
2900
1930
3250
—Wet
2020
3400
2220
3750
Sand
— Dry
1420
2400
1600
2700
— Damp
1690
2850
1900
3200
—Wet
1840
3100
2080
3500
Earth
— Dry Packed
1510
2550
1900
3200
—Wet Excavated
1600
2700
2020
3400
—Top Soil
950
1600
1360
2300
— Loam
1250
2100
1540
2600
Bituminous Concrete —Windrowed Chunks (25%Voids)
1740
2925
—
—
— Compacted
—
—
2310
3900
STABILIZATION/RECLAMATION PRODUCTION
The following charts list production in square meters per minute, square yards per minute, cubic meters
per minute, and cubic yards per minute. The information is based on various travel speeds and cutting
depths for Cat Rotary Mixers equipped with a 2438 mm
(8 ft)
cutting rotor.
PRODUCTION RATES
Travel
Speed m/
min m
2
/min
m
3
/minute
Cutting Depth — mm
100 125 150 175 200 225 250 275 300 325 350 375 400 425 450 475 500
3
7.3 0.73 0.9 1.1 1.3 1.5 1.6 1.8 2.0 2.2 2.4 2.6 2.7 2.9 3.1 3.3 3.5 3.7
6
14.6 1.46 1.8 2.2 2.6 2.9 3.3 3.7 4.0 4.4 4.8 5.1 5.5 5.9 6.2 6.6 6.9 7.3
9
21.9 2.2
0
2.7 3.3 3.8 4.4 4.9 5.5 6.0 6.6 7.1 7.7 8.2 8.8 9.3 9.9 10.4 11.0
12
29.3 2.9
0
3.7 4.4 5.1 5.9 6.6 7.3 8.0 8.8 9.5 10.2 11.0 11.7 12.4 13.2 13.9 14.6
15
36.6 3.6
0
4.6 5.5 6.4 7.3 8.2 9.1 10.0 11.0 11.9 12.8 13.7 14.6 15.5 16.5 17.4 18.3
18
43.9 4.4
0
5.5 6.6 7.7 8.8 9.9 11.0 12.1 13.2 14.3 15.4 16.5 17.6 18.7 19.7 20.8 21.9
21
51.2 5.1
0
6.4 7.7 9.0 10.2 11.5 12.8 14.1 15.4 16.6 17.9 19.2 20.5 21.8 23.0 24.3 25.6
24
58.5 5.9
0
7.3 8.8 10.2 11.7 13.2 14.6 16.1 17.6 19.0 20.5 21.9 23.4 24.9 26.3 27.8 29.3
27
65.8 6.6
0
8.2 9.9 11.5 13.2 14.8 16.4 18.1 19.7 21.4 23.0 24.7 26.3 28.0 29.6 31.3 32.9
PRODUCTION RATES
Travel
Speed ft/
min yd
2
/min
yd
3
/minute
Cutting Depth — inches
4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
10
8.9 0.98 1.2 1.5 1.7 2.0 2.2 2.5 2.7 3.0 3.2 3.5 3.7 4.0 4.2 4.5 4.7 4.9
20
17.8 1.96 2.5 3.0 3.4 4.0 4.4 4.9 5.5 5.9 6.4 6.9 7.4 7.9 8.4 8.9 9.4 9.9
30
26.7 2.9
0
3.7 4.5 5.2 5.9 6.7 7.4 8.2 8.9 9.6 10.4 11.1 11.9 12.6 13.4 14.0 14.8
40
35.6 3.9
0
4.9 5.9 6.9 7.9 8.9 9.9 10.9 11.9 12.8 13.9 14.8 15.8 16.8 17.8 18.7 19.8
50
44.5 4.9
0
6.2 7.4 8.6 9.9 11.1 12.4 13.6 14.8 16.0 17.3 18.5 19.8 21.0 22.3 23.4 24.7
60
53.4 5.9
0
7.4 8.9 10.3 11.9 13.3 14.8 16.4 17.8 19.2 20.8 22.2 23.7 25.2 26.7 28.1 29.7
70
62.3 6.8
0
8.6 10.4 12.0 13.8 15.6 17.3 19.1 20.8 22.4 24.3 25.9 27.7 29.5 31.2 32.8 34.6
80
71.2 7.8
0
9.9 11.9 13.7 15.8 17.8 19.8 21.8 23.7 25.6 27.7 29.6 31.6 33.7 35.6 37.5 39.6
90
80.1 8.8
0
11.1 13.4 15.5 17.8 20.0 22.4 24.5 26.7 28.8 31.2 33.3 35.6 37.9 40.1 42.1 44.5