xthra tyres
Bias OTR TIRE 31/90-49 54PR XBA 2 E4 TL
XTHRA makes the OTR tire 31/90-49 with 54 plies as a broader and tougher alternative for the usual bias 27.00-49.
The construction offers 2.500 kg (5511 lbs) higher payload capacity adding 8% deeper tread with 20% increased TKPH* (TMPH).
XBA 2 is a 2nd generation E4 bias OTR tire pattern developed by XTHRA for application in dumpers and similar equipment.

Application :
Rigid dumpers and similar equipment running at open-pit mining sites.

Characteristics :
Deep pattern with diagonal central junction for improved casing strength;
Wide flat base provides cut and wear resistance;
Reinforced shoulders for improved stability;
Cut and wear resistant.

Size Class
| PR
Pattern Load
Index
Speed
Index
TRA
Code
TT
| TL
TD
[mm]
TKPH
[C | S | H]
TMPH
[C | S | H]
31/90-49 54PR XBA 2 224 B E4 TL 72 340 | 390 | 440 233 | 267 | 302
Size Class
| PR
Pattern Load
Index
Speed
Index
31/90-49 54PR XBA 2 224 B

TRA
Code
TT
| TL
TD
[mm]
E4 TL 72

TKPH
[C | S | H]
TMPH
[C | S | H]
340 | 390 | 440 233 | 267 | 302

Std.Rim
[in]
OD
[mm | in]
SW
[mm | in]
Net Weight
[kg | lb]
CBM
[pc]
Qty. /Cntr40'
[pc]
19.50/4.0 2,720 | 107 790 | 31 1,100 | 2,425 5.8 11
Std.Rim
[in]
OD
[mm | in]
SW
[mm | in]
19.50/4.0 2,720 | 107 790 | 31

Net Weight
[kg | lb]
CBM
[pc]
Qty. /Cntr40'
[pc]
1,100 | 2,425 5.8 11

Speed
[km/h]
Speed
[mi/h]
Max.Load
[kg]
Max.Load
[lb]
Pressure
[kpa]
Pressure
[psi]
Pressure
[bar]
15 9 29,960 66,050 787 114 7.9
20 12 29,680 65,433 773 112 7.7
25 16 29,400 64,816 759 110 7.6
30 19 29,120 64,199 745 108 7.5
35 22 28,840 63,581 731 106 7.3
40 25 28,560 62,964 718 104 7.2
45 28 28,280 62,347 704 102 7.0
50 31 28,000 61,729 690 100 6.9
Speed
[km/h]
Max.Load
[kg]
Pressure
[kpa]
Pressure
[psi]
15 29,960 787 114
20 29,680 773 112
25 29,400 759 110
30 29,120 745 108
35 28,840 731 106
40 28,560 718 104
45 28,280 704 102
50 28,000 690 100

Speed
[mi/h]
Max.Load
[lb]
Pressure
[kpa]
Pressure
[psi]
9 66,050 787 114
12 65,433 773 112
16 64,816 759 110
19 64,199 745 108
22 63,581 731 106
25 62,964 718 104
28 62,347 704 102
31 61,729 690 100

*Specs may change without notice.

OTR tires are an important part on any company's operational budget.
A clear and well defined maintenance program is essential for obtaining the best tire performance.

Herein we make some important reminders concerning tire maintenance:

Inflation Pressure:

  • Under inflation generates heat, leading to early tire failure through tread pattern separation; cable and cord fatigue accelerates leading to internal liner and external sidewall ruptures. Treadwear becomes uneven causing cracks and consequently, infiltration. Rim displacement is also another consequence developing to air leaks on tubeless tires;
  • Over inflation increases mid-pattern ground contact causing uneven pattern wearing process; it reduces tyre capacity to absorb irregular road and impacts against physical obstacles ending to a much exposed pattern center subjected to cuts and sudden rupture. Bead suffers excess pressure increasing localized targetted forces against traction, with a potential risk for permanent damage and burts;

Overload Consequences:

  • Overloading will considerably shorten tire life through heat generation, abnormal tire deflection and cord tension, excessive bead movement; all leading to cracks and ruptures caused by dangerous carcass stress;

Road Maintenance:

  • Road surface is one of the most important factors determining a tire performance. Bumping spots, holes, rocks, debris and all physical obstacles cut, excessively wear and even burst tires. Important attention shall also be paid to cleaning loading and dumping areas, reflecting directly on performance and productivity.

For further information or enquiries, contact us :

Commercial Offices:
529 Chevallum Rd.
QLD 4555, Chevallum, Australia
E-mail. au@xthra.com

202 Urb. Los Incas
Santiago de Surco, Lima, Peru
E-mail. pe@xthra.com

Tenders & Global After-Sales:
Av. Arthur GuimarĂ£es, 260 - Santa Cruz
31150-690 Belo Horizonte, MG, Brazil
E-mail. br@xthra.com

Administration & HR:
3905 Two Exchange Square, Central
Hong Kong
E-mail. hk@xthra.com

Finance:
71 - 75 Shelton Street, Covent Garden
London, United Kingdom
E-mail. uk@xthra.com

For further information or enquiries, contact us :

Commercial Offices:
529 Chevallum Rd.
QLD 4555, Chevallum, Australia
E-mail. au@xthra.com

202 Urb. Los Incas
Santiago de Surco, Lima, Peru
E-mail. pe@xthra.com

Tenders & Global After-Sales:
Av. Arthur GuimarĂ£es, 260 - Santa Cruz
31150-690 Belo Horizonte, MG, Brazil
E-mail. br@xthra.com

Administration & HR:
3905 Two Exchange Square, Central
Hong Kong
E-mail. hk@xthra.com

Finance:
71 - 75 Shelton Street, Covent Garden
London, United Kingdom
E-mail. uk@xthra.com


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