LAMPIRAN 1
Harga Koefisien gesek μ dan ���
Type of pulley and atmospheric
condition
Friction
factor μ �
�� for wrap angles �, deg and radians
180° 210° 240° 300° 360° 400° 480° 3,14 3,66 4,19 5,24 6,28 7,0 8,38 Cast iron of
steel pulley and very humid
(wet) atsmosphere,
dirty
0,1 1,37 1,44 1,52 1,69 1,87 2,02 2,32
Wood or rubber lagged pulley
and humid atmosphere,
dirty
0,15 1,60 1,73 1,87 2,19 2,57 2,87 3,51
Cast iron or steel pulley and
humid atmosphere,
dusty
0,20 1,87 2,08 2,31 2,85 3,51 4,04 5,34
Cast iron or steel pulley dry
atmosphere; dusty
0,30 2,56 3,00 3,52 4,81 6,59 8,17 12,35
Wood lagged pulley and dry
atmosphere ; dusty
0,35 3,00 3,61 4,33 6,25 9,02 11,62 18,78
Rubber lagged pulley and dry atmosphere;
dusty
0,45 3,15 4,33 5,34 8,12 12,35 16,41 28,56
LAMPIRAN II
Karakteristik Material Angkut
SR No
Material Average Bulk Density
(t=1000kg)
Angle of surcharge
Mak Rec Conveyor slope
Abrasiveness
Lb/ft t/m3 (deg) (deg) ...
1 Acid phospate 60 0,98 10 13 A2
2 Alum 50 0,80 25 22 A1
3 Alumina 55 0,90 10 12 A3
4 Alumina Sulphate 54 0,90 20 17 -
5 Ammonium chloride 50 0,80 10 10 -
6 Ammonium Nirate 45 0,70 25 23 -
7 Ammonium
Sulphate,granular
50 0,80 10 10 -
8 Asbestos one or rook 80 1,30 20 18 A1
9 Asbestos, shred 23 0,37 30 30 A3
10 Ashes, coal, dry 37 0,60 25 23 A1
11 Ashes, coal, wet 47 0,75 25 25 A1
12 Ashes, fly 45 0,70 30 23 A3
13 Ashes, gas product, wet 75 1,20 30 28 A3
14 Asphall 82 1,30 30 30 -
15 Bagasse 8 0,13 30 30 A1
16 Bark, wood, reluse 15 0,24 30 27 A2
17 Barley 38 0,60 10 12 A1
18 Baryles, powdered 130 2,10 10 15 -
19 Bauxite, ground, dry 88 1,10 20 18 A2
20 Bauxite, mine run 85 1,36 20 17 -
21 Bauxite, crushed, 3inch 80 1,30 20 20 A3
