XRT 4 is a 4th generation E4 radial 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 : Closed centered 'Z' type blocks for optimal traction and self-cleaning; Reinforced shoulders for improved stability and perfect load distribution; Excellent heat dissipation; 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]
40.00R57
**
XRT 4
250
B
E4
TL
98
850 | 1,030 | 1,130
583 | 706 | 775
Size
Class | PR
Pattern
Load Index
Speed Index
40.00R57
**
XRT 4
250
B
TRA Code
TT | TL
TD [mm]
E4
TL
98
TKPH [C | S | H]
TMPH [C | S | H]
850 | 1,030 | 1,130
583 | 706 | 775
Std.Rim [in]
OD [mm | in]
SW [mm | in]
Net Weight [kg | lb]
CBM [pc]
Qty. /Cntr40' [pc]
27~29.00/6.0
3,570 | 141
1,120 | 44
4,000 | 8,818
14.3
5
Std.Rim [in]
OD [mm | in]
SW [mm | in]
27~29.00/6.0
3,570 | 141
1,120 | 44
Net Weight [kg | lb]
CBM [pc]
Qty. /Cntr40' [pc]
4,000 | 8,818
14.3
5
Speed [km/h]
Speed [mi/h]
Max.Load [kg]
Max.Load [lb]
Pressure [kpa]
Pressure [psi]
Pressure [bar]
15
9
64,200
141,537
787
114
7.9
20
12
63,600
140,214
773
112
7.7
25
16
63,000
138,891
759
110
7.6
30
19
62,400
137,568
745
108
7.5
35
22
61,800
136,246
731
106
7.3
40
25
61,200
134,923
718
104
7.2
45
28
60,600
133,600
704
102
7.0
50
31
60,000
132,277
690
100
6.9
Speed [km/h]
Max.Load [kg]
Pressure [kpa]
Pressure [psi]
15
64,200
787
114
20
63,600
773
112
25
63,000
759
110
30
62,400
745
108
35
61,800
731
106
40
61,200
718
104
45
60,600
704
102
50
60,000
690
100
Speed [mi/h]
Max.Load [lb]
Pressure [kpa]
Pressure [psi]
9
141,537
787
114
12
140,214
773
112
16
138,891
759
110
19
137,568
745
108
22
136,246
731
106
25
134,923
718
104
28
133,600
704
102
31
132,277
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 :