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AGRICULTURAL TIRES

FIELD

PERFORMANCE

AGRI

STRUCTURES
Bias Tires (Conventional Tires)
Radial Tires
USAGE
Flotation
Forestry
Tractor Front
Tractor Rear
Tractor Radial
Harvester
Row Crop
Trailer / Implement
INFLATION TYPES
Tubeless (TL)
Tube Type (TT)

RADIAL AND BIAS TRACTOR TIRES

Bias (diagonal, cross-ply) tire

A pneumatic tire in which the ply cords extend to the beads and are laid at alternate angles less than 90° to the center line of the tread.

Radial ply tire 

A pneumatic tire in which the ply cords extend to the beads and are laid at 90° to the center line of the tread. The inextensible circumferential belt stabilizes the tire's carcass.

FOOT PRINT DIFFERENCE

Radial tire technology delivers substantial benefits to the agricultural industry:


  • Better grip and traction with wide tread, reduced slip
  • Lower rolling resistance
  • Minimized soil compaction 
  • Maximized life span
  • Improved driving comfort with stronger and more flexible sidewalls
  • Higher load capacity
BIAS AND RADIAL TIRE COMPARISON
BIAS
Small Footprint
More deformation in the tread
More slip
High inflation pressure
Uneven ground pressure distribution
High soil compaction
Low productivity
High operating cost (high fuel consumption)
BIAS
Wider Footprint
Less distortion in the tread pattern
Better Traction
Low inflation pressure
Even ground pressure distribution
More handling
More productivity
Low operating cost (lower fuel consumption)

AGRICULTURAL SIDEWALL MARKINGS

BRAND
RIMS
DROP CENTRE RIM

a) 4.00E - 7 JA

a) 4.00E - 7 JA

DIVEDED RIMS
5° DROP-CENTRE RIM - DD (L) RIM CONTOUR
Rim Dimensions (mm)
A Pmin.
4.00E 101.5 ± 2 20 18
4.50E 114.5
5.00F 127 22.5 23.5
5JA 127 16 17.5
5.50F 139.5 22.5 23.5
6.00F 152.5 ± 2.5
6 LB 152.5 22 25
7.00I 178 16 23
7JA 178 17.5
9 228.5 25.5 27
9.00 228.5 19 25
11 279.5 25.5 31.5
12 305
13 330
13.0 330 47
13.00 330 ± 5 19 30
14 355.5 25.5 31.5
16.00 406.5 19 30
Rim Diameters
Nominal Rim
Code()
Rim Diameter
D(mm)
8 202.4
10 253.2
12 304.0
13 329.4
14 354.8
15 380.2
15.3 388.3
16 405.6
17 436.6
18 462
19 487.4
20 512.8
24 614.4
Rim Diameters
Nominal Rim Code (*) Rim Diameter D (mm)
16 405.6
18 462.0
20 512.8
24 614.4
26 665.2
28 716.0
30 766.8
32 817.6
34 868.4
36 919.2
Rim Diameters
Nominal Rim Code (*) Rim Diameter D (mm)
38 970.0
40 1020.8
42 1071.6
44 1122.4
66 1173.2
48 1224.0
50 1274.8
52 1325.6
54 1376.4
Diameters
Nominal
Diameter
Code
Specified
Diameter D
(mm)
Internal
Diameter of
the wheel
34 868.4 713.3
38 970 814.9
42 1071.6 916.5
46 1173.2 1018.1
Rim Dimensions (mm)
A G
1
P
min.
P
min.
DD15L 381 36.5 134 60
DD16L 406.5 50.5 160 60
DD18L 457 50.5 160 60
W, DW AND TW RIMS

a) W Rims



b) DW Rims



W, DW AND TW RIMS

Rim Diameters
Nominal Rim
Code(*)
Rim Diameter
D(mm)
16 405.6
18 462.0
20 512.8
24 614.4
26 665.2
28 716.0
30 766.8
32 817.6
34 868.4
36 919.2
Rim Dimensions (mm)
A G
1
P
min.
W6 152.5 ±2.5 22.5 23.5
W7 178
W8 203 25.5 23
W8 203 ±2.5 27
W9 228.5
W10 254
W11 279.5
W12 305
W13 330
W8L 203 22.5
W10L 254
W14L 355.5

W15L 381 ±5
25.5 33
W16L 406.5
W18L 457
DW10 254 ±2.5 27
DW11 279.5
DW12 305
DW13 330
DW13L 330
DW14L 355.5

DW15L 381
DW16L 406.5 ±5
29 50.5
DW18L 457
DW20B* 508 ±6.5 50.5
DW21B* 533.5
DW23B* 584
DW24B* 609.5
DW25B* 635
DW27B* 686
DW28B* 711
DW30B* 762
TW13 330 ±2.5 25.5 27
TW14L 355.5
36.5
TW15L 381 ±5
TW16L 406.5 50.5
TW18L 457
TW20B 508 ±6.5 29
TW21B 533.5
TW23B 584
TW24B 609.5
TW25B 635
TW27B 689
TW28B 711
TW30B 762

*It is mentioned as DW-A, now DW-B in current

VALVES
TUBELESS VALVES




Valve Type, Reference Standard Valve Diameter Valve Height
(L)
DIN ETRTO TRA
- V2-03- - 8.8 59
34 GS 11.5 V2-03-1 TR413 11.3 42.5
49 GS 11.5 V2-03- TR414 11.3 48.5
43 GS 16 V2-03- TR415 15.7 42.5
TUBELESS VALVES
Valve Parts Valve Diameters Valve Height
(L)
V5.01.1 ve V4.02.1
15.7 47.5
MATCHING OF SOME VALVE PARTS
Valve Type Parts
V4.03.1 V4.01.1 V4.02.1
V4.03.2 V4.01.2
A
V4.03.1 41.15
V4.03.2 49.65

USE OF LIQUID BALLAST IN TRACTOR TIRES

The traction capability of a tire is directly related to its weight. The heavier the tire is, the more traction it has.

In order to increase the traction power and to prevent possible wear of slipping, iron cast ballasts must be installed on the front or rear side of the tractor or liquid ballast must be applied. Petlas, together with all vehicle manufacturers recommend using iron cast ballasts. In cases which iron cast ballast application is not possible, tires may be filled with liquid instead.

Size Rim Amount of Solution Solution Preperation
CACI2 Amount
(kg)
Total Weight
(kg)
7.50-20 5.50 F 30 8 35
9.5-20 W8 35 9 41
8.3-24 W7 40 11 48
9.5-24 W8 50 13 58
11.2-24 W10 70 19 81
12.4-24 W11 80 22 93
13.6-24 DW12 120 32 39
14.9-24 W13 150 40 174
18.4-26 DW16L 280 76 325
23.1-26 DW20 470 127 345
11.2-28 W10 90 24 104
12.4-28 W11 110 30 128
13.6-28 W12 140 38 162
14.9-28 W13 180 49 209
16.9-28 W15L  220 59 255
14.9-30 W13 200 54 232
16.9-30 W15L  250 67 290
18.4-30 W16L 320 86 371
12.4-32 W11 130 35 151
16.9-34 W15L  280 76 325
19.4-34 W16L 360 97 419
12.4-36 W11 150 40 174
13.6-36 W12 180 49 209
13.6-38 W12 190 51 220
14.9-38 W12 220 59 255
16.9-38 W15L  280 76 325
18.4-38 W16L 370 100 429
20.8-38 W18L 487 131 565

Liquid ballasting should be done by filling in the tire with a mixture of water and calcium chloride without exceeding 75% of the tire.

Using just water without adding extra materials is only possible when there no probability of freeze. However, using only water decreases the effect of ballasting by up to %20. When antifreeze is needed, water /calcium chloride mixture should be used.

The tire must not be filled with water completely, by any means.

Liquid Filling Process:

-Deflate the tire.
-Rotate the tire in to position the valve at the top.
-Remove the valve core.
-Start filling the water according to the instructions in the manual of the pump.
-During the filling process, remove the pump regularly and let the air get out of the tire.
-Stop the filling process when liquid starts to flow from the valve. Mount the valve core.
-Inflate the tire to its normal pressure.


Important Remark:
In tubeless tires, it is recommended to use an inner tube to prevent rusting of the rim.

TIRE MANUAL

  • Tire Manual