Tuesday, March 30, 2010

Bolt Info - Informasi Baut

Head Marking

Grade and
Material

Nominal Size Range
(inches)

Mechanical Properties

Proof Load
(psi)

Min. Yield Strength
(psi)

Min. Tensile Strength
(psi)

US Bolts


No Markings

Grade 2

Low or medium carbon steel

1/4 thru 3/4

55,000

57,000

74,000

Over 3/4 thru 1-1/2

33,000

36,000

60,000


3 Radial Lines

Grade 5

Medium Carbon Steel, Quenched and Tempered

1/4 thru 1

85,000

92,000

120,000

Over 1 thru 1-1/2

74,000

81,000

105,000


6 Radial Lines

Grade 8

Medium Carbon Alloy Steel, Quenched and Tempered

1/4 thru 1-1/2

120,000

130,000

150,000

Stainless markings vary. Most stainless is non-magnetic

18-8 Stainless

Steel alloy with 17-19% Chromium and 8-13% Nickel

1/4 thru 5/8

40,000 Min. 80,000 – 90,000 Typical

100,000 – 125,000 Typical

3/4 thru 1

40,000 Min. 45,000 – 70,000 Typical

100,000 Typical

Above 1

80,000 – 90,000 Typical

Head Marking

Class and
Material

Nominal Size Range
(mm)

Mechanical Properties

Proof Load
(MPa)

Min. Yield Strength
(MPa)

Min. Tensile Strength
(MPa)

Metric bolts


8.8

Class 8.8

Medium Carbon Steel, Quenched and Tempered

All Sizes below 16mm

580

640

800

16mm - 72mm

600

660

830


10.9

Class 10.9

Alloy Steel, Quenched and Tempered

5mm - 100mm

830

940

1040


12.9

Class 12.9

Alloy Steel, Quenched and Tempered

1.6mm - 100mm

970

1100

1220

Stainless markings vary. Most stainless is non-magnetic.

Usually stamped A-2

A-2 Stainless

Steel alloy with 17- 19% Chromium and 8-13% Nickel

All Sizes thru 20mm

210 Min.
450 Typical

500 Min.
700 Typical

Tensile Strength: The maximum load in tension (pulling apart) which a material can withstand before breaking or fracturing.

Yield Strength: The maximum load at which a material exhibits a specific permanent deformation

Proof Load: An axial tensile load which the product must withstand without evidence of any permanent set.

1MPa = 1N/mm2 = 145 pounds/inch2

Saturday, March 27, 2010

Lanjutan mega builders - tunnel 2

silakan klik judul diatas

Mega Builders - Tunnel - Metode kerja membuat terowongan

Berikut saya link kan video pembuatan terowongan / tunnel. silakan klik judul diatas

Buldoser - crawler dozers ex komatsu


D275A
Crawler Dozers

Machines belonging to this category are otherwise called a bulldozer, which pushes earth and rocks with a blade installed at the machine’s front end. Large- sized crawler dozers normally have a set of claws called a ripper that is installed at the machine’s rear end and can crush a hard rock. Swamp bulldozers are equipped with an undercarriage that is configured to enable them to freely move around on a marshy land. As a fellow machine, there is a pipe- laying machine that lays down a large steel pipe in the construction of a pipeline and a dozer shovel (crawler loader) for loading.

• Available models may vary by region or country. Please contact yourlocal distributor for the most suitable specifications in your area.
• Product specifications are subject to change without notice.
Bulldozers
ModelFlywheel HorsepowerOperating WeightBlade Type
(kW)(HP)(kg)
D21A-829.5403710 *1PAT
D31EX-2156757130 *1PAT
D37EX-2163857410 *1PAT
D39EX-2171958520 *1PAT
D41E-68211010950 *1PAT
D51EX-229713012600 *2PAT
D61EX-1511615516520 *1PAT
D65E-1213518019125 *2Semi-U
D65EX-1514219020080 *2Semi-U
D65EX-15E015320520280 *2Semi-U
D65WX-1514219020940 *2Semi-U
D68ESS-1211615519100 *3PAT
D68ESS-12A11615516650 *2Straight-tilt
D85ESS-216121521490 *3Angle dozer
D85ESS-2A14920020535 *4Straight-tilt
D85EX-1517924028000 *4Semi-U
D85EX-15E019726428100 *4Semi-U
D85EX-15R19726428000 *4Semi-U
D155A-223932041380 *4Semi-U
D155A-522530238700 *4Semi-U
D155AX-523131038800 *5Semi-U
D155A-626435441700 *6Semi-U
D155AX-626435439500 *6Sigma dozer
D275A-530641049850 *5Semi-U
D275A-5R33544950850 *5Semi-U
D275AX-530641049850 *5Semi-U
D275AX-5E033544949850 *5Semi-U
D375A-539152566985 *5Semi-U
D375A-5E039152569560 *5Semi-U
D475A-5641860102500 *5Semi-U
D475A-5E0664890108390 *5Semi-U
D475A-5 SD641860108080 *2Super dozer
D475ASD-5E0664890113200 *2Super dozer
D575A-37831050131350 *5Semi-U
D575A-3 SD8581150152600 *2Super dozer
*1 : With specified blade and ROPS canopy
*2 : With specified blade, ROPS and cab
*3 : With specified blade, towing winch and sweep canopy
*4 : With specified blade, multi-shank ripper, ROPS and cab
*5 : With specified blade, giant ripper, ROPS and cab
*6 : With specified blade, giant ripper, ROPS cab
Swamp Bulldozers
ModelFlywheel HorsepowerOperating WeightBlade Type
(kW)(HP)(kg)
D21P-829.5404100PAT
D31PX-2156757650 *1PAT
D37PX-2163857770 *1PAT
D39PX-2171958900 *1PAT
D41P-68211011520 *1PAT
D51PX-229713013100 *2PAT
D61PX-1511615518140 *1PAT
D65PX-1514219020800 *2Straight-tilt
D65PX-15E015320521000 *2Straight-tilt
D85PX-1517924027550 *2Straight-tilt
D85PX-15E019726427650 *2Straight-tilt
D85PX-15R19726427500 *2Straight-tilt
Pipelayers
ModelFlywheel HorsepowerOperating WeightMaximum Lifting Capacity
(kW)(HP)(kg)(kg)
D85C-211682253005041000
D155C-12393204580070000
D355C-32693605785092000

Wheel Loader ex Komatsu




WA470
Wheel Loaders

Used for loading excavated earth and rocks, ranging from small wheel loaders for civil engineering to super-large ones for mining. Mini wheel loaders are used in a wide range of purposes including livestock farming and snow removal.

• Available models may vary by region or country. Please contact yourlocal distributor for the most suitable specifications in your area.
• Product specifications are subject to change without notice.
Wheel Loaders
ModelFlywheel HorsepowerOperating WeightBucket Capacity
(kW)(HP)(kg)(m³)
WA30-521.32925750.4
WA50-327.23734750.6
WA120-363857600 *11.4
WA150-571967425 *11.5
WA180-3821108700 *11.7
WA200-5921239470 *12.0
WA250-39713010480 *12.1
WA250-510113510620 *12.3
WA320-312116313700 *12.7
WA320-3 CUSTOM11415312970 *12.7
WA320-512416613520 *12.8
WA380-314018716480 *13.2
WA380-514018716230 *13.3
WA380-614219116610 *13.3
WA420-316221718590 *13.7
WA430-516221718350 *13.7
WA430-617223118290 *13.5
WA470-319426021920 *14.2
WA470-519526121600 *14.2
WA470-620327221875 *14.2
WA480-520227124145 *14.6
WA480-622329924325 *14.6
WA500-323531528410 *25.0
WA500-6R26335333360 *15.6
WA600-335747845235 *26.1
WA600-6R39352752700 *16.4
WA700-350267271000 *28.7
WA800-3E0603808101900 *111.0
WA900-3E0638856107200 *113.0
WA1200-311651560205200 *220.0
*1 : With ROPS cab
*2 : With ROPS canopy and steel cab
Wheel Dozers
ModelFlywheel HorsepowerOperating WeightBucket Capacity
(kW)(HP)(kg)(m³)
WD420-3167224200003.1
WD500-3235315269005.1
WD600-3362485429008.0
WD900-363785310000026.0