J. 450 - ScanBelt

J. 450
Belt data
Material
Polyacetal (POM)
Polypropylene (PP)
Belt surface:
Open area:
Strength:
Material/colour:
Cleanability:
Accessories:
Application:
Construction:
Width interval:
etc.
Registered Trademark ®
Max. belt pull
kg
450
200
Belt weight
kg/m2
9
7,5
Smooth.
67 %
The right belt for heavy transportation.
POM
Good.
3 mm flight buds made in friction material or
POM. 5 and 25 mm side guards.
Spiral coolers, radius conveyors.
It only runs in J-curves.
47/50 mm side modules, 200 mm centre modules.
Normally 33 mm. E.g: 95 mm, 128 mm, 162 mm
Contact Scanbelt.
Sprocket Data
A= Outside
No. of teeth diameter
6
11
11 STEEL
116
189
189
Phone +45 98 90 90 88
B= Pitchdiameter
104
177
177
C= Insidediameter
92
166
166
Hub width:
22
22
22
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Round bore
mm
in.
FLEX
30/40/45
FLEX
Version 2016/1
Square bore
mm
in.
40
Page 81
50 mm. Radius belt dimensions
A = Standard belt width
B = Inner radius
C = Inner diameter
D = Outer diameter
B
C
D
A
A
Standard width – Radius belt
S-250
J-450
119
152
186
219
252
288
321
354
388
421
454
490
523
556
590
656
695
728
761
795
828
861
895
995
1095
1195
1295
1395
95
128
162
195
229
262
296
329
362
396
429
462
498
532
566
600
633
667
701
734
768
802
835
869
903
1003
1103
1203
1303
1403
Phone +45 98 90 90 88
A
B
C
D
186
267
534
906
288
429
858
1434
388
594
1188
1964
490
769
1538
2518
A
B
C
D
95
133
266
456
195 296
283 444
566 888
956 1480
396
614
1228
2020
S-250
590 695
950 1150
1900 2300
3080 3690
J-450
498 600
797 960
1594 1920
2590 3120
795
1346
2692
4282
895
1551
3102
4892
995
1765
3530
5520
1095
1988
3976
6166
701
1157
2314
3716
802
1364
2728
4332
903
1562
3124
4930
1003
1775
3550
5556
S.250 / J.450
Collapse factor = min. inner radius
belt width
Min. inner radius = collapse factor x belt width
width
Note: Belts width steel reinforcements
S.250: + 5 mm.
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Version 2016/1
Page 82
Frame measurements for Radius belt
Frame measurements for Radius belt S-250
10 10
12 12
26
11 11
Measurements
in mm.
A = belt width
G = A – 24 mm.
H = A – 28 mm.
12
12
G
A
H
Frame measurements for Radius belt S-100 / J-350
Measurements
in mm.
A = belt width
B = A + 4 mm.
AA
12 12
D
D
15 15
Phone +45 98 90 90 88
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Version 2016/1
Page 83
Installation instructions
Radius belts
1.Frame construction.
The frame must be sufficiently stiff to prevent twisting or other forms of dimensional change while loaded.
The outer dimensions must remain within stated tolerances, so that the belt cannot become trapped or fall out
of the slide rails.
2. Slide rails.
There should be as few joints as possible and they should always be avoided in the curves. All joints must be smooth,
so that the belt cannot get caught in a joint.
3. Sprockets.
The sprocket in the outer curve should be fitted as close to the outer edge as possible. All drive sprockets should
be locked so that they cannot move sideways.
Contrary to the drive sprockets, the non-driven sprockets should be fitted, so that they run freely on the shaft.
4. Turning shoe.
It is vital that the transition between the turning shoe and the slide rails is smooth with no risk of the belt getting
caught.
5. Tightening.
The belt should normally be installed with an excess length of approx. 3 elements, depending on the total length
of the belt.
In the event of the return belt rising immediately after the drive unit, a take-up roller may be necessary. On short
belts, tightening to a single element´s excess length may be sufficient.
An "accumulation" of the belt must never occur at the drive sprockets.
6. Extra drive unit.
On heavily loaded belts, an extra drive unit may be necessary. This motor can be of the type "BAUER
DREHFELDMOTOR" in order to prevent the two motors from working against each other. The extra motor
should be placed at the non-driven end, but under special circumstances may be placed at the centre of the belt.
Phone +45 98 90 90 88
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Version 2016/1
Page 84
Calculation for a S-curve
Radius Belt example 90o S-curve.
A:
B:
C:
D:
E:
Belt width.
Min. inner radius = belt width x collapse factor.
Straight run on pull and return = belt width.
Straight run between 2 curves = min. 2 x belt width.
Curve length.
Calculation example
Belt width 421 mm - 2 pcs. 90° turning radius.
Collapse factor = 1,6
B = 421 (A) x 1,6
C min.
D min.
E [(B + A) x 3,14]
4
=
=
=
=
674 mm.
421 mm.
842 mm.
860 mm
Belt length-[C/C] (2 x C)+D+(2 x E) =
3404 mm.
Total belt length-(C/C x 2) + sprocket pitch diameter.
Phone +45 98 90 90 88
www.scanbelt.com
Version 2016/1
Page 85