Earth Equipment Approximate Production Data For Primary Tasks

Becky August 25, 2016

(planning Output Norms = Ideal Output x Performance Factor x Correction Factor)

Tracked Bull Dozer Ideal Output Per Hour In Bulk Volume In Easy-To-Doze Loose Soil

Job Conditions, Assumed dozing speed 3km/h, return speed 6 km/h and maneuvering time as 0.15 min. Ideal output in one hour = St blade capacity x cycles in one hour

HP range
Straight
Blade capacity
Dozing Distance in Meters (one way)
Yd3
M3
Up to 25
50
75
100
250-300
8
6.11
400
230
150
110
180-250
6
4.58
300
160
110
80
120-180
4
3.06
200
110
70
60
100-120
3
2.23
150
80
50
40
75-100
2
1.53
100
60
40
30
50-75
1.5
1.14
70
40
30
20


Front-End Loader Ideal Output Per Hour in Bulk Volume Easy-to Haul Loose Soil

Ideal output of the wheeled loader shovel

Job Conditions, Assumed maneuvering time as 0.4 min and speed (loaded) as 4 km/h and return empty as 12 km/h



Bucket Capacity
Output per hour in m3
Bucket Capacity
6.12 m3
410
265
245
165
130
110
95
85
8 Yd3
4.6 m3
310
200
185
115
95
80
70
60
6 Yd3
3.06 m3
205
135
125
75
65
55
50
40
4 Yd3
2.3 m3
155
100
95
60
50
40
35
30
3 Yd3
1.5 m3
100
65
60
40
30
25
25
20
2 Yd3
0.76 m3
50
35
30
20
15
15
10
10
1 Yd3
Distance m
25
50
75
100
125
150
175
200
One way

Hauling Distances in Meters

Ideal output of the tracked loader shovel

Job Conditions, Assumed digging maneuvering and dumping time 0.4 min and speed (loaded) as 3 km/h and empty return as 6 km/h

Bucket Capacity
Output per hour in m3
Bucket Capacity
3.06 m3
200
185
140
115
95
85
75
60
4 Yd3
1.53 m3
130
90
70
60
50
40
35
30
2 Yd3
0.76 m3
65
45
35
30
25
20
15
15
1 Yd3
Distance m
10
20
30
40
50
60
70
80
One way

Hauling Distances in Meters

Excavation and Lifting Equipment Ideal Output Per Hour In Bulk Volume In Easy to Dig Soil Swing 90 Degree with 23 seconds cycle.


Types of Equipment
Features
Bucket Struck Capacity

Bucket Sizes
Yd3
0.50
0.75
1.00
1.50
2.00
3.00
m3
0.38
0.57
0.76
1.14
1.53
2.30
Engine HP (Approx.)

50
75
100
130
160
200
Face Shovel
Maximum cutting height
m
7.0
7.0
7.0
7.5
8.5
10.0
Ideal Output/Hour (Loose, easy dig)
Lm3
60
90
120
180
220
300
Backhoe
Maximum Digging Depth
m
5.0
6.5
7.5
8.0
9.0
9.0
Ideal Output/Hour (Loose, easy dig)
Lm3
48
72
96
144
176
240
Dragline
Maximum Boom Length
m
21
21
21.27
21.27
27.30
30.33
Ideal Output/Hour (Loose, easy dig)
Lm3
45
67
78
135
165
225
Clamshell
Maximum Boom Length
m
21
21.27
21.27
21.27
21.30
30.33
Ideal Output/Hour (Loose, easy dig)
Lm3
24
36
48
72
88
120


Scrapper Ideal Output Per Hour In Bulk volume In Easy To Scrap Soil

Ideal output of the towed scraper

Job Conditions, Assumed digging maneuvering and dumping time 3.0 min and speed (loaded) as 3 km/h and empty return as 6 km/h

Heaped Capacity
Output Per Hour in m3
Heaped Capacity
21.4 m3
215
140
105
85
70
60
28 Yd3
18.4 m3
185
120
95
75
60
50
24 Yd3
13.8 m3
140
90
70
55
45
40
16 Yd3
10.7 m3
105
70
50
40
35
30
14 Yd3
6.9 m3
70
50
35
30
25
20
9 Yd3
Distance m
100
200
300
400
500
600
One way

Hauling Distances in Meters

Ideal output of the motorized scraper

Job Conditions, Assumed digging maneuvering and dumping time 2.0 min haul road is less than 5% and speed (loaded) as 20 km/h and empty return as 40 km/h rolling resistance of

Heaped Capacity
Output Per Hour in m3
Heaped Capacity
38.3 m3
600
410
350
310
250
225
210
190
170
150
50 Yd3
30.6 m3
485
325
230
250
200
180
170
150
135
120
40 Yd3
22.3 m3
360
245
210
185
150
135
125
115
100
90
30 Yd3
15.3 m3
240
165
140
125
100
90
85
75
65
60
20 Yd3
Distance m
400
800
1000
1200
1600
1800
2000
2200
2600
3000
One way

Hauling Distances in Meters

Performance Factor

 Job Conditions
 Management Conditions
Excellent
Good
Average
Poor
 Favourable
 1.6
 0.9
 0.8
 0.7
 Average
 0.9
 0.8
 0.7
 0.6
 Unfavourable
 0.8
 0.7
 0.7
 0.5
Note
1.Management conditions, under control of management include operators efficiency, equipment operations worthiness, equipment maintenance capability, planning and supervisions, effectiveness, client attitude etc.
2.Job conditions, which affect efficiency but are beyond the control of management cover terrain, weather conditions, temperature etc.

Common Correction Factors

Soil factor, Multiply

Easy Dig (loam, sand, gravel)
Medium Dig (common earth)
Hard Dig (stiff, clay, soft rock)
1.00
0.85
0.67

Swell Factor for in-phase performance

Common earth
Sand and gravel
Clay (dry)
1.2
1.1
1.3

Altitude, reduce performance

0-300 m
300 m and above
Nil
Performance reduction 1% per 100 m increase in altitude above 300 m
Temperature derating effect, reduce performance.
Temp C
0
15
30
45
Performance change %
+3
0
-3
-5

Working Efficiency, Multiply

60 Min.
55 Min.
50 Min/h
45 Min
40 Min/h
1.00
0.92
0.83
0.75
0.67


Correction Factors Special For Bull Dozer

Blade Factor Multiply

S Blade
A Blade or P Blade
U Blade (use only in loose soil)
1.0
0.65
1.20

Transmission system Factor Multiply

Power Shift
Direct drive
1.0
0.8

Grade Factor (Approximate), Multiply

Up Grade
Down Grade
1 – (2.5 Grade % /100)
1 + (2.5 Grade % /100)

Correction Factors Special for Excavators

Swing Factor

Angle of swing (Degree)
45
60
75
90
120
150
180
Factor
1.25
1.15
1.05
1.0
0.90
0.80
0.70

Load Factor

Side Casting
Loading in Vehicles
1.0
0.8


Correction Factors Special For Scrapers

Maximum Load Carrying Capacity = Weight of volumetric capacity or Scraper pay load, which ever is less.
Becky

Posted by Becky