COLORADO OTR LP - Global Tire LLC - OTR · PDF file2 COLORADO OTR LP 2 Table of contents...

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TABLE OF CONTENTS

INTRODUCTION

Industry Standard

Application Vehicle Matching Chart

GENERAL INFORMATION

Structural Diagrams - Radial Tire

Definitions

Classifications

Uses and Characteristics of Off-The-Road (OTR) Tires

TRAClassificationandCorrespondingColoradoOff-The-RoadTires

Rubber Compound Codes

Tire Families/Design Tread-Depth

Tire Markings

Type of Tire Size Designation

DualSpecificationCodes

TREAD DESIGNS RADIAL AND BIAS – Dimensional and Inflation Data

Earthmover Tread Designs (Radial)

Earthmover Tread Designs (Bias)

TABLES

Load Index

Conversion Table: Star Rating to Ply Rating

Pressure Conversion Chart

Tread Depth Conversion Chart

FITMENT GUIDE

3

3

3

4

4

5

7

7

8

8

9

10

10

11

12

12

17

22

22

24

25

26

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INTRODUCTION

Industry StandardColoradoTirehasdevelopedawiderangeoftirepatternsandspecifications,sothattheproperOff-The-Road(OTR)tirecanbematchedtoanyvehicle,service,oroperatingcondition.

Colorado OTR tires are designed and manufactured to meet the commonly accepted international standards setbytheTRA(TireandRimAssociation)intheU.S.A.,bytheETRTO(EuropeanTireandRimTechnicalOrganization) in Europe, and/or by the JATMA (Japan Automobile Tire Manufacturers’ Association) inJapan*.

Thefollowingmeasurementsstrictlyfollowthesestandards:Loadcapacities,inflationpressures,dimensions(suchasoveralltirediameterandwidth),aswellastherelativerimandtubevalves.

Ifatireistobeusedforapurposeotherthanthatforwhichitisoriginallyintended,pleaseconsultColoradoOTR,LPforreferenceonapplicationanduse.


APPLICATION VEHICLEEarthmover Service DumpTrucks,MotorScrapers, ArticulatedDump

Trucks,CoalHaulers,LoggingTrucks,OtherMiningTrucks,etc.

Loader & Dozer Service Shovels, Front-End Loaders, Back-hoe Loaders,SkidSteerLoaders,Dozers,ShuttleTrucks,Load-Haul-Dumps,etc.

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GENERAL INFORMATION

Structural Diagrams - Radial Tire

Structural Diagrams - Bias-Ply Tire

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TREAD

TREAD

TREAD BELTS

TREAD BELTS

BODY PLYS

BODY PLYS

TURN-UP PLY

SIDEWALL

BEAD BUNDLE

BEAD BUNDLE

BEAD CHAFER (FILLER)

INNER LINER

INNER LINER

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DEFINITIONS

Tire Size - The size of each tire is indicated by nominal width and rim diameter in inches and mm.Radialstructureisindicatedbytheletter“R”.Forsometirestheaspectratioisindicatedbypercentage.

ExampleRadial Tire 40.00R57,33.25R35,445/95R25

Bias Tire 30.00-51,45/65-45

Star Rating, Ply Rating and Load Index - The load capacity of a tire is indicated by the star rating (incaseofaradialtire)andtheplyrating(incaseofabiastire).*The load index is applied in countries where the ETRTO standards are used.

Overall Diameter (OD)-“OverallDiameter”istwicethesectionheightofanewtire,plusthenormalrimdiameter,andincluding24-hourinflationgrowth.

Overall Width (OW)-“OverallWidth”isthewidthofanewtire,including24-hourinflationgrowth,andincludingprotectivesideribsbarsordecorations.

Section Width (SW)-“SectionWidth”isthewidthofanewtire,including24-hourinflationgrowthandnormalsidewalls;BUT,notincludingprotectivesideribs,bars,ordecorations.

Static Loaded Radius and Width (SLR, SLW) -“StaticLoadedRadius”istheshortestdistancefromtheaxlecentertothecontactsurfaceofatire.“StaticLoadedWidth”istheoverallwidthofatiremountedontheapprovedrimatthespecifiedinflationpressure,placedstillandverticallyonaflatboard,andloadedwiththespecifiedload.

Original Tread Depth (OTD)-“OriginalTreadDepth”isthetreaddepthofanewtiremeasuredatthepointofthetread-indicator(whereavailable);OR,one-fourththewidthofthetirecrownsectionfromthecrowncenter,andincluding24-hourinflationgrowth.

Section Height (SH)-“SectionHeight”isthedistancefromtheheelofthebeadtothecrownsectionofthetire,andincludestheoriginaltreaddepth.

Aspect Ratio –“AspectRatio”isrepresentedasapercentagetodeterminetheSectionHeight.

Speed Rating -“SpeedRating“isrepresentedbyanalphasymbolonthesidewallandisdefinedasthemaximumcontinuousspeedallowedforapre-determinedperiodofonehour.

Ton Kilometer per Hour (TKPH) -“TonKilometerperhour” isaformulatedrepresentationof theamountofworkthatisappliedtoatireoveraspecifiedperiodofonehour.

2.1

2.2

2.3

2.4

2.5

2.6

2.7

2.8

2.9

2.10

2.11 Defin

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2.12 TKPH Formula-TocalculateTKPHthefollowingformulaapplies:

TKPH Work RateAverage Tire Load X Average Speed per Shift

Average Tire LoadEmpty Tire Load in Tons + Loaded Tire Load in Tons

2

Average SpeedCycleDistanceinKmXNumberofCyclesperShift

HoursperShift

2.12

TheTKPHformulawillensureoptimumperformancefromOTRTires.ThisformulaMUSTbeadheredto.Failuretodosowillresultinprematurefailureofthetireduetoexcessiveheatbuildup.Toavoidexcessiveheatbuildup,atirewithaTKPHratingthatishigherthanthatoftheworkratecalculatedmustbeselected.

Eachtirepositiononthemachinemustbecalculatedandconsideredindividually.Apositionwiththehighestaveragetireloadshouldbeselected.

For imperial measurements; Ton Mile per Hour (TMPH): the formula remains the same, noting (TMPH) figuresmustbeselectedfromthe(TKPH)-(TMPH)datafields.

*Any tire or tires found to be working outside of their recommended TKPH-TMPH will NOT be subject to manufacturer’s warranty.

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GENERAL INFORMATION (cont.)

Classifications

Uses and Characteristics of Off-The-Road (OTR) TiresThe characteristics which OTR tires possess differ somewhat according to the function they must serve and thetypeofvehiclesonwhichtheyaremounted.


Type/Service Tire Characteristics VEHICLE

Earthmover

Heat-Resistance

Cut-Resistant

Wear-Resistant

Shock Burst-Resistant

Loader & Dozer Cut-Resistant

Wear-Resistant

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TRA Classification and Corresponding Colorado Off-The-Road Tires

Off-The-RoadtiresareclassifiedbytheTRAasshowninthechartbelow.Namesofthecorrespondingtreadpatterns as related to Colorado OTR Tires are also shown below:

TRA Classification Tread TypeColorado OTR Tread Pattern

Radial BiasE-4 Rock CR1T CB1T

E-4 Rock CR2T CB2T/CB3T

L5 Extra Deep Tread -TBA- CB1L/CB2L

L5S Deep Tread Slick -TBA- CB3L

Rubber Compound Codes

Service Code Number Structure

Earthmover (E)ARCRHR

StandardCut-ResistantHeat-Resistant

Loader & Dozer (L) CR Cut-Resistant

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E-2/E-3L-2/L-3

E-4L-4 / L-4S L-5/L-5S

TRACTION,ROCK ROCK,DEEPTREAD ROCK,EXTRADEEPTREAD

N 1.5N 2.5N

Tire Families

Thereare3primaryearthmovertirefamilieswhicharecategorizedbytheaspectratioH/S(Theratiobetweenthesidewallandtheheightandthetirewidth).

100 SERIES OR STANDARD TIRE

TheH/Saspectratioisapproximatelyequalto1.00Thesectionwidth,givenininches,isto2decimalplaces.e.g.18.00R33

Design Tread-Depth

80 SERIES OR WIDE BASE

TheH/Saspectratioisapproximatelyequalto0.80The sectionwidth, given in inches, is awhole number followed by afraction.e.g.20.5R25Orthesectionwidthisgivenininchesfollowedbythenumber80.e.g.59/80R63

65 SERIES

TheH/Saspectratioisapproximatelyequalto0.65The section width is given in inches or in millimeters followed by the number65.e.g.35/65-33

H/S : 1.00H

S

H/S : 0.80H

S

H/S : 0.65 H

S

N 1.5N 2.5N

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Tire Markings

Type of Tire Size Designation

Section Width (inches)



Radial Structure

Radial Structure

Aspect Ratio 65 Series

Rim Diameter (inches)



Star Rating

Star Rating

Ply Rating

1

Regular

Wide Base

Super Wide Base

1

2

3

4

ColoradoBrandName

ColoradoSpecificationCodes

SerialNumber

TireSize,StarRating,andType

4

3

2

27.00

27.00

40 /

49

49

39 30PR

R

R

65

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Dual Specification Codes

Combination Construction Size DesignationLoader & Dozer Service

+ Earthmover Service

Radial

BiasTBA

Loader & Dozer Service +

Grader ServiceBias TBA

Earthmover Service +

Grader Service Radial TBA

*MultipleStarRatingColorado Tiresmarkedwith “LOADER&DOZER * (one star)” and “EARTHMOVER ** (two star)” havespecifiedloadcapacityoneachservicingcondition.

Thestrengthofthetirecasingisdesignedtoconstraininflationpressureused.(26.5R25isusedasanexample)

Type of Service Star RatingInflation

PressureLoad

(Load Index)Speed

(Speed Symbol)

Loader *(onestar) 5.25bar 15,000kg(202)

10km/hour(A2)

Earthmover **(twostar) 5.00bar 11,500kg(190)

50km/hour(B)

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TREAD DESIGNS RADIAL AND BIAS – Dimensional and Inflation Data

EARTHMOVER TREAD DESIGNS (RADIAL)CR1T

Tire Size TRA Code

Ply Rating

Original Tread Depth

TKPHRecommended RimWidth/FlangeHeight

Minimum Dual

Spacing

Static Loaded Radius Weight

(lbs / kg)

Maximum Load (kg) Pressure (kpa)

InflatedDimensions(inches / mm)

32nd mm (inches / mm)

(inches / mm) @10km/h @50km/h Section

WidthOverall

Diameter

59/80R63 E4 ** 120 95 2188 44.00/5.0 70/1,780

68.4/1,737

11,200/5,091 - 101,600/600 59.2

/1,503159.1/4,026

53/80R63 E4 ** 120 95 1544 36.00/5.0 63/1,618

64.5/1,638

10,050/4,568 - 88,030/700 52.7

/1,338125.6/3,780

50/90R57 E4 ** 120 95 1498 32.00/6.5 61.5/1,562

66.0/1,676

10,200/4,636 - 78,000/700 49.8

/1,266150.5/3,809

50/80R57 E4 ** 120 95 1382 34.00/5.0 61.5/1,562

63.5/1,612

10,200/4,636 - 77,290/700 49.6

/1,262142.3/3,600

40.00R57 E4 ** 112 89 1238 29.00/6.0 54.7/1,389

61.8/1,567

7,450/3,386 - 60,000/700 44.1

/1,121142.0/3,594

37.00R57 E4 ** 112 89 1060 27.00/6.0 48.5/1,232

61.5/1,562

6,900/3,136 - 51,500/700 40.9

/1,039136.3/3,449

RADIALTRUCKTIREDIMENSIONALDATA

CR1T

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Tire Size

TireLoadLimitsatVariousColdInflationPressuresBasedon30mph/50kphMaximumSpeed

KPAPSI

Star Rating

45065

47569

50073

52576

55080

57583

60087

62591

65094

67598

700102

800116

59/80R63 kg lbs 2Star 81,900

180,00085,200188,000

88,600195,000

91,900203,000

95,200210,000

98,400217,000

101,600224,000

53/80R63 kg lbs 2Star 67,050

147,80069,800153,900

72,550160,000

75,250165,900

77,950171,800

80,500177,600

83,200183,400

85,010187,447

88,030194,106

50/90R57 kg lbs 2Star 78,000

171,600

50/80R57 kg lbs 2Star 77,290

170,038

40.00R57 kg lbs 2Star 42,500

93,50045,00099,000

46,250102,000

48,750107,500

50,000110,000

51,500113,500

53,000117,000

54,500120,000

56,000123,500

58,000128,000

60,000132,500

37.00R57 kg lbs 2Star 51,500

113,300

**NOTE THAT ALL SPECIFICATIONS ARE BASED ON THE HEAT-RESISTANT (HR) COMPOUND. STANDARD AND CUT-RESISTANT TBA

RADIALTIRELOADINFLATIONTABLE

CR1T

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EARTHMOVER TREAD DESIGNS (RADIAL)

CR2T

Tire Size TRA Code

Ply Rating



Minimum Dual

Spacing


(lbs / kg)





WidthOverall

Diameter

53/80R63 E4 ** 120 95 1574 36.00/5.0 63.7/1,618

64.2/1,630

10,050/4,568 - 88,030/700 52.7

/1,338125.6/3,780

40.00R57 E4 ** 112 89 1266 29.00/6.0 54.7/1,389

62.0/1,575

7,450/3,386 - 60,000/700 44.3

/1,125142.0/3,594

37.00R57 E4 ** 112 89 1060 27.00/6.0 48.5/1,232

60.1/1,526

6,900/3,136 - 51,500/700 40.2

/1,021136.3/3,449

36.00R51 E4 ** 102 81 750 26.00/5.0 46.6/1,184

55.7/1,415

5,500/2,500 - 46,250/700 39.3

/939127.7/3,231

33.00R51 E4 ** 100 80 714 24.00/5.0 45.1/1,146

53.1/1,350

4,450/2,022 - 38,750/700 35.2

/895121.0/3,060

30.00R51 E3 ** 57 45 536 22.00/4.5 39.1/993

51.0/1,295

3,600/1,636 - 33,500/525 33.5

/853104.7/2,650

27.00R49 E4 ** 81 65 500 19.50/4.0 35.1/892

47.6/1,208

3,140/1,427 27,250/700 29.3

/743106.8/2,703


CR2T

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2T

Tire Size


KPAPSI

Star Rating

45065

47569

50073

52576

55080

57583

60087

62591

65094

67598

700102

800116

53/80R63 kg lbs 2Star 67,050

147,80069,800153,900

72,550160,000

75,250165,900

77,950171,800

80,500177,600

83,200183,400

85,010187,447

88,030194,106

40.00R57 kg lbs 2Star 42,500

93,50045,00099,000

46,250102,000

48,750107,500

50,000110,000

51,500113,500

53,000117,000

54,500120,000

56,000123,500

58,000128,000

60,000132,500

37.00R57 kg lbs 2Star 51,500

113,300

36.00R51 kg lbs 2Star 33,500

74,00035,50078,000

36,50080,500

37,50082,500

38,75085,500

40,00088,000

41,25091,000

42,50093,500

43,75096,500

45,00099,000

46,250102,000

33.00R51 kg lbs 2Star 27,500

60,00029,00064,000

30,00066,000

30,75068,000

32,50071,500

33,50074,000

34,50076,000

35,50078,500

36,50080,500

37,50082,500

38,75085,500

30.00R51 kg lbs

33,50073,700

27.00R49 kg lbs 2Star 19,500

43,00020,00044,100

20,60045,400

21,80048,100

22,40049,400

23,00050,700

23,60052,000

25,00055,100

25,75056,800

26,50058,400

27,25060,000



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EARTHMOVER TREAD DESIGNS (RADIAL)

CR3T

Tire Size TRA Code

Ply Rating



Minimum Dual

Spacing


(lbs / kg)





WidthOverall

Diameter

36.00R51 E4 ** 102 81 750 26.00/5.0 46.6/1,184

57.8/1,468

5,500/2,500 - 46,250/700 39.3

/939127.7/3,231


CR3T

Tire Size


KPAPSI

Star Rating

45065

47569

50073

52576

55080

57583

60087

62591

65094

67598

700102

800116

36.00R51 kg lbs 2Star 33,500

74,00035,50078,000

36,50080,500

37,50082,500

38,75085,500

40,00088,000

41,25091,000

42,50093,500

43,75096,500

45,00099,000

46,250102,000


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2T

EARTHMOVER TREAD DESIGNS (BIAS)

CB2T

Tire Size TRA Code

Ply Rating



Minimum Dual

Spacing


(lbs / kg)





WidthOverall

Diameter

59/80-63 E4 88 120 95 1485 44.00/5.0 73.0/1,854

68.9/1,750

11,000/5,000 - 111,000/700 57.8

/1,469159.1/4,026

53/80-63 E4 86 111 88 980 36.00/5.0 61/1,551

63.9/1,623

9,500/4,310 - 92,500/700 51

/1,300149.4/3,780

40.00-57 E4 60 104 83 800 29.00/6.0 51.6/1,311

64.5/1,638

7,445/3,378 - 54,500/550 43.0

/1,092142.0/3,593

37.00-57 E4 68 104 83 700 27.00/6.0 48.5/1,231

60.8/1,544

6,600/3,000 - 51,500/525 40.1

/1,01840.1/1,018

36.00-51 E4 58 111 88 680 26.00/5.0 46.6/1,184

58.8/1,494

5,441/2,469 - 41,250/525 40.0

/1,01640.0/1,016

27.00-49 E4 48 82 65 460 19.50/4.0 35.1/893

48.4/1,229

2,712/1,230 - 25,000/575 29.0

/737105.9/2,680

BIASTRUCKTIREDIMENSIONALDATA

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CB2T

Tire Size


KPAPSI

Ply Rating

400 58

42562

45065

47569

50073

52576

55080

57583

60087

62591

65094 700102 825

120

59/80-63 kg lbs 88ply 111,000

244,713

53/80-63 kg lbs 86Ply 92,500

203,928

40.00-57 kg lbs 60ply 48,750

107,50050,000110,000

51,500113,500

53,000117,000

54,500120,000

37.00-57 kg lbs 68ply 51,500

113,538

36.00-51 kg lbs 58ply 37,500

82,50038,75085,500

40,00088,000

41,25091,000

27.00-49 kg lbs 48ply 20,600

45,40021,20046,700

21,80041,800

22,40049,400

23,00050,700

23,60052,000

24,30053,600

25,00055,100


BIASLOADINFLATIONTABLE

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LOADER TREAD DESIGNS (BIAS)

CB1L

Tire Size TRA Code

Ply Rating



Minimum Dual

Spacing


(lbs / kg)





WidthOverall

Diameter

70/70-57 L4 84 122 97 - 60.00/6.0 - 71.7/1,821

14,710/6,686 - - 74.2

/1,884 -

58/85-57 L4 84 122 97 - 46.00/6.0 - 68.7/1,745

12,780/5,809 - - 55.9

/1,419 -

CB1L

Tire Size


KPAPSI

Ply Rating

400 58

42562

45065

47569

50073

52576

55080

57583

60087

62591

65094

700102

825120

70/70-57 kg lbs 88ply TBA - - - - - - - - - - - -

58/85-57 kg lbs 86Ply TBA - - - - - - - - - - - -



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CB2L

Tire Size TRA Code

Ply Rating



Minimum Dual

Spacing


(lbs / kg)





WidthOverall

Diameter

52/80-57 L4 68 122 97 - 36.00/6.0 - 70.7/1,795 TBA 82,500/600 - 51.9

/1,320142.0/3,594

50/80-57 L4 68 122 97 - 36.00/6.0 - 70.5/1,790 TBA 77,500/600 - 51.2

/1,300141.6/3,583


CB2L

Tire Size


KPAPSI

Ply Rating

47569

50073

52576

55080

57583

60087

65094

67596

700102

725105

750109

775112

850123

52/80-57 kg lbs 84ply TBA 69,000

152,00073,00016,100

75,000165,500

77,500171,000

80,000176,500

50/80-57 kg lbs 84Ply TBA 67,000

147,50069,000152,000

71,000156,000

73,000161,000

75,000165,500

zz`


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CB3L

Tire Size TRA Code

Ply Rating



Minimum Dual

Spacing


(lbs / kg)





WidthOverall

Diameter

50/65-51 L5 62 157 125 - 40.00/4.5 - 60.2/1,536 - 63,000/650 - 50.0

/1,270120.9/3,061

45/65-45 L5 58 149 118 - 36.00/4.5 - 53.8/1,366 - 51,250/650 - 45.0

/1143108.0/2,733

35/65-33 L5 42 126 100 - 28.00/3.5 - 40.9/1,038 - 26,500/600 - 35.0

/88982.1/2,077


CB3L

Tire Size


KPAPSI

Ply Rating

47569

50073

52576

55080

57583

60087

65094

67596

700102

725105

750109

775112

850123

50/65-51 kg lbs 62ply 53,000

117,00054,500120,000

56,000123,500

58,000128,000

60,000132,500

63,000139,000

45/65-45 kg lbs 58Ply 41,250

91,00042,50093,500

43,75096,500

51,250113,000

35/65-33 kg lbs 42Ply 22,400

49,40023,00050,700

23,60052,000

26,50058,400


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Tabl

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TABLES

Load Index - An international numerical code associated with the maximum load a tire can carry at a certainspeed(indicatedbyitsSpeedSymbol)andunderserviceconditionsspecifiedbyColoradoOTR.

LI Kg LI kg LI kg LI kg LI kg LI kg

0 45 50 190 100 800 150 3,350 200 14,000 250 60,000

1 46.2 51 195 101 825 151 3,450 201 14,500 251 61,500

2 47.5 52 200 102 850 152 3,550 202 15,000 252 63,000

3 48.7 53 206 103 875 153 3,650 203 15,500 253 65,000

4 50 54 212 104 900 154 3,750 204 16,000 254 67,000

5 51.5 55 218 105 925 155 3,875 205 16,500 255 69,000

6 53 56 224 106 950 156 4,000 206 17,000 256 71,000

7 54.5 57 230 107 975 157 4,125 207 17,500 257 73,000

8 56 58 236 108 1,000 158 4,250 208 18,000 258 75,000

9 58 59 243 109 1,030 159 4,375 209 18,500 259 77,500

10 60 60 250 110 1,060 160 4,500 210 19,000 260 80,000

11 61.5 61 257 111 1,090 161 4,625 211 19,500 261 82,500

12 63 62 265 112 1,120 162 4,750 212 20,000 262 85,000

13 65 63 272 113 1,150 163 4,875 213 20,600 263 87,500

14 67 64 280 114 1,180 164 5,000 214 21,200 264 90,000

15 69 65 290 115 1,215 165 5,150 215 21,800 265 92,500

16 71 66 300 116 1,250 166 5,300 216 22,400 266 95,000

17 73 67 307 117 1,285 167 5,450 217 23,000 267 97,500

18 75 68 315 118 1,320 168 5,600 218 23,600 268 100,000

19 77.5 69 325 119 1,360 169 5,800 219 24,300 269 103,000

20 80 70 335 120 1,400 170 6,000 220 25,000 270 106,000

21 82.5 71 345 121 1,450 171 6,150 221 25,750 271 109,000

22 85 72 355 122 1,500 172 6,300 222 26,500 272 112,000

23 87.5 73 365 123 1,550 173 6,500 223 27,250 273 115,000

24 90 74 375 124 1,600 174 6,700 224 28,000 274 118,000

25 92.5 75 387 125 1,650 175 6,900 225 29,000 275 121,000

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bles

LI Kg LI kg LI kg LI kg LI kg LI kg

26 95 76 400 126 1,700 176 7,100 226 30,000 276 125,000

27 97 77 412 127 1,750 177 7,300 227 30,750 277 128,000

28 100 78 425 128 1,800 178 7,500 228 31,500 278 132,500

29 103 79 437 129 1,850 179 7,750 229 32,500 279 136,000

30 106 80 450 130 1,900 180 8,000 230 33,500

31 109 81 462 131 1,950 181 8,250 231 34,500

32 112 82 475 132 2,000 182 8,500 232 35,500

33 115 83 487 133 2,060 183 8,750 233 36,500

34 118 84 500 134 2,120 184 9,000 234 37,500

35 121 85 515 135 2,180 185 9,250 235 38,750

36 125 86 530 136 2,240 186 9,500 236 40,000

37 128 87 545 137 2,300 187 9,750 237 41,250

38 132 88 560 138 2,360 188 10,000 238 42,500

39 136 89 580 139 2,430 189 10,300 239 43,750

40 140 90 600 140 2,500 190 10,600 240 45,000

41 145 91 615 141 2,575 191 10,900 241 46,250

42 150 92 630 142 2,650 192 11,200 242 47,500

43 155 93 650 143 2,725 193 11,500 243 48,750

44 160 94 670 144 2,800 194 11,800 244 50,000

45 165 95 690 145 2,900 195 12,150 245 51,500

46 170 96 710 146 3,000 196 12,500 246 53,000

47 175 97 730 147 3,075 197 12,850 247 54,500

48 180 98 750 148 3,150 198 13,200 248 56,000

49 185 99 775 149 3,250 199 13,600 249 58,000

24

COLORADO OTR LP

24

Conversion Table - Star Rating to Ply Rating

Tabl

es

Tire Size Star Rating Corresponding Ply Rating

GRADER TIRES

14.00R24 * 16ply

16.00R24 * 16ply

17.5R25 * 16ply

20.5R25 * 24ply

23.5R25 * 24ply

STANDARDEARTHMOVERTIRES

14.00R24 *** 32ply

14.00R25 *** 32ply

16.00R25 ** 36ply

18.00R25 * 24ply

1800R25 ** 36ply

18.00R33 ** 40 ply

21.00R35 ** 44 ply

24.00R35 ** 48ply

24.00R49 ** 48ply

27.00R49 ** 54ply

30.00R51 ** 58ply

33.00R51 ** 64ply

36.00R51 ** 66ply

3700R57 ** 72ply

40.00R57 ** 78ply

53/80R63 * 78ply

55/80R63 * 86ply

59/80R63 ** 88ply

Tire Size Star Rating Corresponding Ply Rating

WIDEBASEEARTHMOVER

17.5R25 * 16ply

17.5R25 ** 20ply

20.5R25 * 24ply

20.5R25 ** 28ply

23.5R25 ** 24ply

23.5R25 ** 32ply

26.5R25 ** 32ply

29.5R25 ** 34ply

33.5R33 ** 44 ply

37.5R33 ** 48ply

33.25R35 ** 44 ply

37.25R35 ** 48ply

37.5R39 ** 52ply

WIDEBASELOADER

15.5R25 * 16ply

17.5R25 * 16ply

20.5R25 * 24ply

20.5R25 ** 28ply

23.5R25 * 24ply

23.5R25 ** 32ply

26.5R25 * 24ply

26.5R25 ** 36ply

29.5R25 * 28ply

29.5R29 * 34ply

35/65R33 * 36ply

40/65R39 * 42ply

45/65R45 * 50ply

www.coloradootr.com

25

Pressure Conversion Chart

Tabl

es

PSI KPA PSI KPA PSI KPA PSI KPA

1 10 36 250 70 480 104 710

3 20 37 255 71 490 105 720

4 30 38 260 72 495 107 730

6 40 40 270 74 500 108 740

7 50 41 280 75 510 109 750

9 60 43 290 77 520 111 760

10 70 44 300 78 530 112 770

11 80 45 310 80 540 114 780

13 90 47 320 81 550 115 790

14 100 48 330 82 560 116 800

16 110 50 340 84 570 118 810

17 120 51 350 85 580 119 820

18 130 53 360 87 590 121 830

20 140 54 370 88 600 122 840

21 150 55 380 89 610 124 850

23 160 57 390 91 620 125 860

24 170 58 400 92 630 126 870

26 180 60 410 94 640 128 880

27 190 61 420 95 650 129 890

28 200 62 430 97 660 131 900

30 210 64 440 98 670 132 910

31 220 65 450 99 680 133 920

33 230 67 460 101 690 135 930

34 240 68 470 102 700 136 940

26

COLORADO OTR LP

26

Tread Depth Conversion Chart

mm 32nd mm 32nd mm 32nd

1 1 30 38 95 120

2 3 31 39 100 126

3 4 32 40 105 132

4 5 33 42 110 139

5 6 34 43 115 145

6 8 35 44 120 151

7 9 36 45 125 157

8 10 37 47 130 164

9 11 38 48 135 170

10 13 39 49 140 176

11 14 40 50 145 183

12 15 41 52 150 189

13 16 42 53 155 195

14 18 43 54 160 202

15 19 44 55 165 208

16 20 45 57 170 214

17 21 46 58 175 220

18 23 47 59 180 227

19 24 48 60 185 233

20 25 49 62 190 239

21 26 50 63 195 246

22 28 55 69 200 252

23 29 60 76 205 258

24 30 65 82 210 265

25 31 70 88 215 271

26 33 75 94 220 277

27 34 80 101 225 283

28 35 85 107 230 290

29 37 90 113 235 296

Tabl

es

www.coloradootr.com

27

FITMENTGUIDE

Brand Tire Size EquipmentManufacturerLoading Capacity

(MT)

Empty Weight(MT)

Loaded Weight(MT)

Colorado 59/80R63

TerexUnitRigMT6300AC 363 236 599

TerexUnitRigMT5500 326 232 558

Caterpillar797B 345 215 560

Colorado 55/80-63

LiebherrT282 360 230 590

TerexUnitRigMT5500 326 232 558

Belaz75600 320

Colorado 53/80R6353/80-63

HitachiEH5000 315 213 528

Komatsu930E-3SE 291 213 504

Komatsu930E-4 292 210 502

Colorado 52/80-57LeTourneauL-1350Loader 38.1 143.3 181.4

LeTourneauL-1400Loader 38.1 163.8 201.9

Colorado 50/80-57 HitachiEH4500 282 198 480

Colorado 40.00R5740.00-57

Caterpillar793C 218 152 370

Caterpillar793D 218 117 335

Terex Unit Rig MT 4400 Mining Truck 218 161 379

LiebherrT262 218 172 390

Komatsu830E 222-227 164-165 386-392

Belaz75306 220 156 376

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COLORADO OTR LP

28

FITMENTGUIDE(cont.)


(MT)

Empty Weight(MT)

Loaded Weight(MT)

Colorado 37.00R5737.00-57

Caterpillar789C 177 136 313

TerexUnitRigMT3700ACMiningTruck 186 149.7 335.7

TerexUnitRigMT3700B 172-186 131 303-317

LiebherrT252 181 148.3 329.3

HitachiEH3500 190 134 324

Komatsu730E 183 141 324

Colorado 50/65-51 LeTourneauL-1100Loader 29.9 106.2 136.1

Colorado 37.25-35

Caterpillar657GScraper 47.2 67.8 115

Caterpillar637GScraper 34 52.1 86.1

Caterpillar631Scraper 34 46.5 80.5

Colorado 35/65-33875/65-33

CaterpillarAD55UndergroundTruck 60.5 41.5 102

CaterpillarR2900GXTRALoader 20 56 76

Caterpillar988HWheelLoader 11.4 38.2 49.6

HitachiLX450 46.6

Colorado 33.25-35

LeTourneauLogStacker6592-94rear 59 112.1 171.1

LeTourneauLogStacker4592-94front 40.8 22.7 63.5

LeTourneauLogStacker3592SLfront 31.8 19 50.8

LeTourneauLogStacker5092-94 45.4 14.5 59.9

LeTourneauLogStacker5592-94rear 49.9 29.5 79.4

Colorado 33.25-29

Caterpillar627GScraper 23.9 37.9 61.8

Caterpillar623GScraper 25 37.4 62.4

Caterpillar621GScraper 23.9 32.6 56.5

Fitm

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www.coloradootr.com

29

FITMENTGUIDE(cont.)


(MT)

Empty Weight(MT)

Loaded Weight(MT)

Colorado 2400-35

Caterpillar773F 54.4 45.6 100

Caterpillar775F 63.5 46.3 109.8

TerexTR60 55 40.7 95.7

TerexTR70 65 47.7 112.7

HitachiEH1100 64.9 45.8 110.7

KomatsuHD465 55 41.1 96.1

KomatsuHD605-7 64 45.9 109.9

Belaz7555 55 41.5 96.5

Colorado 2100-35

TerexTR45 41 37 78

LeTourneauLogStacker4592-94rear 40.8 22.7 63.5

Belaz7547 45 33 78

Colorado36.00R5136.00-51

Caterpillar784C

TerexMT3600B 154-172 116-124 271-297

TerexBD270 243 188 431

Kress200CCoalHauler 220 220

HitachiEH3000 155 123.5 278.5

Colorado 33.00R5133.00-51

Caterpillar785C 136 95.7 231.7

TerexUnitRigMT3300 136 105.2 241.2

KomatsuHD1500-7 144.2 105.3 249.5

KomatsuHD1500-5 136-149 101 237-250

LeTourneauLogStacker6592-94front 59 112.1 171.1

Belaz7513 136 107 243

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30

COLORADO OTR LP

30

FITMENTGUIDE(cont.)


(MT)

Empty Weight(MT)

Loaded Weight(MT)

Colorado 45/65-45

Caterpillar854GWheelDozer 94.4

KomatsuWA800-3 101

LeTourneauD950WheelDozer 99.8

LeTourneauL950Loader 24.5 82.1 106.6

LeTourneauL1000 23.1 82.1 105.2

Colorado27.00R4927.00-4931/80R49

Caterpillar776D 107.5 55.5 163

Caterpillar777F 90.9 72.4 163.3

TerexTR100 91 85 176

Komatsu785-5 96 72.4 163.4

Komatsu785-7 94 72 166

HitachiEH1600 89.7 70.9 160.6

HitachiEH1700 98.4 71.7 170.1

Colorado 45/65-3941.25/70-39

Caterpillar844HWheelDozer 70.8

Caterpillar990HWheelDozer 77

Colorado 37.5-39Caterpillar651B-EScraper

LeTourneauLogStacker5592-94front 49.9 29.5 79.4

Colorado 1800-33

Caterpillar769D 36.6 34.8 71.4

Caterpillar771D 41 34.7 75.7

KomatsuHD405-7 40.1 34.4 74.5

KomatsuHD325-7 37.7 31.6 69.3

HitachiEH750 41.9 33.5 75.4

Fitm

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31

FITMENTGUIDE(cont.)


(MT)

Empty Weight(MT)

Loaded Weight(MT)

Colorado 1800-25

TerexTR35 31.7 24 55.7

HitachiEH600 33.1 23.8 56.9

Belaz7540 30 22.6 52.6

Fitm

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uide

32

COLORADO OTR LP

32

Date post:	07-Feb-2018
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