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Conveyor belts with a smooth carrying surface are useful for conveying of packed and unpacked material up to the angle of inclination 22° as an upper limit.
CHEVRON belts are the right belts to meet your requirements when higher angles of inclination are required.
For this purpose, SAVA has developed high-performance and high-quality Chevron and High-Chevron conveyor belts. Their advantages are long service life and flexibility due to homogeneous Chevron profiles which are vulcanised together with a base belt.
Areas of application:
- quarries, sandpits
- cement works, lime works
- farming: conveying of beets, grains, potatoes, fertilizers, wooden chips
- coal and coke transport
- sugar refineries
- salt mines
- mobile crushers and screens
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Selection of a type and height of profiles depends on the material to be conveyed and the angle of inclination:
| Type of material |
Material example |
Max. angle of inclination |
| Height of cleats |
| h(mm): 16 |
h(mm): 25 |
h(mm): 32 |
| POWDERY |
Flour, lime etc. |
25° |
28° |
30° |
| LOOSE FLOWING |
Grains: corn, barley, wheat, rye, dray sand |
20/25° |
25/30° |
25/30° |
| LOOSE ROLLING |
Gravel, ground stone |
25° |
28° |
30° |
| STICY |
Wet sand, ash, wet loam |
30/35° |
35/40° |
40/45° |
| PACKED |
Sacks, jute sacks, paper sacks |
30/35° |
35/40° |
35/40° |
The values given are just an orientation and depend on the type of goods conveyed, loading conditions and the conveyor belt speed.
The maximum inclination of a smooth conveyor belt reaches from 15° to 22° in dependence of the type of material.
Steep angle conveyor belts with a profiled surface reach an inclination of 30° to over 40°.
In unfavorable loading conditions only the profiled surface may be loaded.
For the rest, the capacity is calculated in the same way as for smooth surface conveyor belts.
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Equations:
Volume flow:
Qv = Qth . k . v m3/h
Mass flow:
Qm = Qv . ρ t/h
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Reduction factor k
| Angle of inclination |
14° |
16° |
18° |
20° |
22° |
24° |
26° |
28° |
30° |
35° |
40° |
| Loose rolling and rough material |
0,91 |
0,89 |
0,85 |
0,81 |
0,76 |
0,71 |
0,66 |
0,61 |
0,56 |
- |
- |
| Sticky material |
1 |
|
|
0,93 |
|
|
0,85 |
|
|
0,58 |
0,47 |
Theoretical volume flow Qth (m3/h) at two-sectioned idlers
at v=1 m/s, trough angle 20°, material static angle of slide 10°, horizontal conveying, smooth belt
| Belt width (mm) |
400 |
500 |
| Qth (m3/h) |
40 |
70 |
Theoretical volume flow Qth (m3/h) at three-sectioned idlers
at v=1 m/s, trough angle 20°, material static angle of slide 10°, horizontal conveying, smooth belt
| Belt width (mm) |
500 |
650 |
800 |
1000 |
1200 |
| Qth (m3/h) |
60 |
110 |
172 |
281 |
412 |
MINIMUM PULLEY DIAMETERS (mm)
| CHEVRON belt with profile height 16 mm |
EP 250/2 |
EP 400/3 |
| Minimum pulley diameter (mm) |
Ø 250 |
Ø 315 |
| High-CHEVRON belt with profile height 25 and 32 mm |
EP 250/2 |
EP 400/3 |
| Minimum pulley diameter (mm) |
Ø 315 |
Ø 400 |
Other constructions on request.
MINIMUM TAKE-UP ADJUSTMENT (% of centre distance)
| Fixed or automatic take-up at tail |
| 1,5% |
MAXIMUM SPACING BETWEEN ROLLERS
| Carrying idler group |
0,5 meter |
| Return idler group * |
<= 0,8 meter |
* It should not be a multiple of a spacing between two cleats.
MAXIMUM TROUGH ANGLE
| Standard idler group |
Profile height 16 mm |
Profile height 25 and 32 mm |
| - 3-Roll |
30° |
25° (1) |
| - 2-Roll |
30° |
20° |
(1) Width < 800 mm: 20°
BELT SPLICING - additional lenght per splice (m) to be ordered
| Type of splice |
Belt EP 250/2 |
Belt EP 400/3 |
Belt EP 500/4 |
| Hot vulcanised |
0,65 m |
0,85 m |
1,10 m |
| Cold splicing |
0,70 m |
0,90 m |
1,20 m |
Other belt construction on request. CHEVRON belts may also be spliced with mechanical clamps.
Type A - profile height 16 mm
Type AH - profile height 25 mm
Typical belt construction:
EP 250/2 3,5/1
EP 400/3 3,5/1,5
EP 500/4 4/2
Cover type:
• anti-abrasion
• oil and grease resistant
• heat resistant
• fire resistant
• sliding belts
• food grade
Special application:
• Chevron + ripcheck
(steel cord reinforcement)
| Pattern |
Width (B) (mm) |
Pattern width (A) (mm) |
Freezone width (C) (mm) |
Pitch (mm) |
|
A33, AH33* |
400 |
330 |
35 |
250 |
500 |
330 |
85 |
250 |
| A44, AH44 |
500 |
440 |
30 |
250 |
600 |
440 |
80 |
250 |
650 |
440 |
105 |
250 |
| A51, AH51 |
600 |
510 |
45 |
250 |
650 |
510 |
70 |
250 |
800 |
510 |
145 |
250 |
| A54, AH54 |
600 |
540 |
30 |
250 |
650 |
540 |
55 |
250 |
800 |
540 |
130 |
250 |
| A62, AH62 |
650 |
620 |
15 |
250 |
800 |
620 |
90 |
250 |
1000 |
620 |
190 |
250 |
| A72, AH72 |
800 |
720 |
40 |
250 |
1000 |
720 |
140 |
250 |
| A83, AH83 |
1000 |
830 |
85 |
250 |
1200 |
830 |
185 |
250 |
| A94, AH94 |
1000 |
940 |
30 |
250 |
1200 |
940 |
130 |
250 |
| A101, AH101 |
1200 |
1010 |
95 |
250 |
1400 |
1010 |
195 |
250 |
| A112, AH112 |
1200 |
1120 |
40 |
250 |
1400 |
1120 |
140 |
250 |
| A133, AH133 |
1400 |
1330 |
35 |
250 |
1600 |
1330 |
135 |
250 |
| A151, AH151 |
1600 |
1510 |
45 |
250 |
1800 |
1510 |
145 |
250 |
| A156, AH156 |
1600 |
1560 |
20 |
250 |
1800 |
1560 |
120 |
250 |
| A161, AH161 |
1800 |
1610 |
95 |
250 |
2000 |
1610 |
195 |
250 |
*AH33 available in width 500 mm only.
CHEVRON conveyor belts with A and AH type profiles
Type F - profile height 32 mm
Typical belt construction:
EP 250/2 3,5/1
EP 400/3 3,5/1,5
EP 500/4 4/2
Cover type:
• anti-abrasion
• oil and grease resistant
• heat resistant
• fire resistant
• sliding belts
• food grade
Special application:
• Chevron + ripcheck
(steel cord reinforcement)
| Pattern |
Width (B) (mm) |
Pattern width (A) (mm) |
Freezone width (C) (mm) |
Pitch (mm) |
| A51, AH51 |
500 |
450 |
25 |
330 |
600 |
450 |
75 |
330 |
650 |
450 |
100 |
330 |
| A72, AH72 |
650 |
600 |
25 |
330 |
800 |
600 |
100 |
330 |
| A83, AH83 |
800 |
700 |
50 |
330 |
1000 |
700 |
150 |
330 |
| A94, AH94 |
1000 |
900 |
50 |
330 |
1200 |
900 |
150 |
330 |
| A101, AH101 |
1200 |
1000 |
100 |
330 |
1400 |
1000 |
200 |
330 |
| A112, AH112 |
1200 |
1100 |
50 |
330 |
1400 |
1100 |
150 |
330 |
| A133, AH133 |
1400 |
1260 |
70 |
330 |
1600 |
1260 |
170 |
330 |
| A151, AH151 |
1400 |
1360 |
20 |
330 |
1600 |
1360 |
120 |
330 |
| A156, AH156 |
1600 |
1410 |
95 |
330 |
1800 |
1410 |
195 |
330 |
| A161, AH161 |
1600 |
1560 |
20 |
330 |
1800 |
1560 |
120 |
330 |
| A156, AH156 |
1800 |
1660 |
70 |
330 |
2000 |
1660 |
170 |
330 |
Conveyor belts with L type profiles (reversible)
PROFILE HEIGHT 8 mm
| B (mm) |
PROFILE |
A (mm) |
C (mm) |
EP400/3
3/1 |
EP500/4
4/2 |
|
500 |
L 38 |
380 |
60 |
only on request |
only on request |
|
650 |
L 51 |
510 |
70 |
only on request
|
only on request |
|
800 |
L 64 |
640 |
80 |
only on request |
only on request |
|
1000 |
L 77 |
770 |
115 |
only on request
|
only on request |
|
1200 |
L 103 |
1030 |
85 |
only on request |
only on request |
Chevron conveyor belts are also available in combination with ripcheck and in different rubber cover types.
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