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Spartan
®
Belts
Spartan® Load Support – Maximum Belt Width
Material Weight
0-40 lb./cu. ft.
(0-640 kg/cu. m)
41-80 lb./cu. ft.
(641-1280 kg/cu. m)
81-120 lb./cu. ft.
(1281-1920 kg/cu. m)
PIW/Plies Trough Idlers
20 deg 35 deg 45 deg 20 deg 35 deg 45 deg 20 deg 35 deg 45 deg
Inches
220/2
42
36
30
36
30
24
30
24
18
330/3
48
42
36
48
36
30
42
36
30
440/4
54
48
42
54
48
36
48
42
36
600/3
72
60
60
66
60
54
60
54
48
Millimeters
220/2
1070
910
760
910
760
610
760
610
460
330/3
1220
1070
910
1220
910
760
1070
910
760
440/4
1370
1220
1070
1370
1220
910
1220
1070
910
600/3
1830
1520
1520
1680
1520
1370
1520
1370
1220
On systems with troughing idler spacing greater than 5ft. (1.5m) OR idler roll gap greater than 1/2 in. (12.7mm), consult your Sales Representative or ContiTech.
Spartan® Troughability – Minimum Belt Width
Table based on ISO 703 Testing Procedure
Idlers
Spartan
220/2
Spartan
330/3
Spartan
440/4
Spartan
600/3
Inches
20 degree idlers
14
16
20
24
35 degree idlers
16
20
24
30
45 degree idlers
20
24
30
36
Millimeters
20 degree idlers
360
410
610
610
35 degree idlers
410
510
760
760
45 degree idlers
510
610
910
910
If top cover and pulley cover are balanced (i.e., 3/16 in. x 3/16 in. or 5mm x 5mm) or less
than 1/16 in. (2mm) differential (i.e., 3/16 in. x 5/32 in. or 4mm x 3mm), add 6 in. (150mm)
to the minimum belt width. 6 in. (150mm) narrower widths are possible if the belt is broken
in for an extended period of time fully loaded. Consult your Sales Representative. Additional
break-in time is required when the belt has been stored prior to insulation in ambient
temperatures of less than 50°F (10°C). Above tables are based on top cover gauge equal or
greater than the bottom (pulley) cover gauge.
Spartan® Minimum Pulley Diameters – Minimum Belt Width
Table based on ISO 703 Testing Procedure
Spartan
220/2
Spartan
330/3
Spartan
440/4
Spartan
600/3
Inches
Over 80% Tension
14
16
20
24
60% to 80% Tension
12
14
18
20
40% to 60% Tension
8
10
14
18
Up to 40% Tension
8
10
14
16
Tails and Snubs
8
10
14
16
Millimeters
Over 80% Tension
360
410
510
610
60% to 80% Tension
300
360
460
510
40% to 60% Tension
200
250
360
460
Up to 40% Tension
200
250
360
410
Tails and Snubs
200
250
360
410
2015 Heavyweight Conveyor Belts
Spartan®