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HISTORY OF CONSTRUCTION EQUIPMENT

THE ORIGINAL EARTHMOVER

THE OTIS-TYPE SHOVEL

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1914 – PANAMA CANAL OPENS

EARLY ADAMS GRADER

c. 1913 – HOLT 30

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c. 1913 – HOLT 30

1914 – PEORIA-BUILT HOLT 30

BEST 60 - 1919

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1925

HOLT AND BEST MERGE

CABLE CONTROL, DOZER AND RIPPER

LETOURNEAU CARRYALL SCRAPER

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CATERPILLAR AUTO PATROL – 8.2 t. - 60 HP

PREPRODUCTION CAT 60 DIESEL TRACTOR

NEW PARADIGMS FROM THE EARLY '30S

THE INTEGRAL MOTOR GRADER

DIESEL POWER

YELLOW PAINT

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EARLY EUCLID OFF-HIGHWAY TRUCK

EUCLID WHEEL TRACTOR BOTTOM DUMP

SUPER C TOURNAPULL

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HOUGH HF PAYLOADER – 3/4 C.Y.

1948 - EUCLID FDT SCRAPER

1951 – CAT DW21

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1914 -- ERIE FULL REVOLVING SHOVEL

Click to add an outline

1954 – DEMAG HYDRAULIC EXCAVATOR

THE THREE LOADING TOOLS

THE TRACK-TYPE LOADER

THE WHEEL LOADER

THE HYDRAULIC EXCAVATOR

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1953

LETOURNEAU SELLS TO WEST AIRBRAKELETOURNEAU SELLS TO WEST.-AIRBRAKE

GM ACQUIRES EUCLID

EUCLID DIV. OF GM -- TS18/TC12

TC-12 PUSHLOADING S-18

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1958 - LETOURNEAU-WESTINGHOUSE HAULPAK

MID-1950S

BASIC TYPES OF MACHINES ARE COMPLETE

TRACK-TYPE TRACTOR

TRACK-TYPE LOADER

HYDR. EXCAVATOR

WHEEL LOADER

MOTOR GRADER

OFF HIGHWAY TRUCKHYDR. EXCAVATOR

WHEEL TRACTOR-

SCRAPER

OFF HIGHWAY TRUCK

BOTTOM DUMP WAGON

AN IMPORTANT DERIVATIVE:THE 1957 CASE BACKHOE LOADER

1957 – Case 320 Backhoe Loader

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1966 VOLVO-BM DR631 DUMPER

CONSTRUCTION EQUIPMENT INDUSTRY MATURES

1950s THROUGH 1970s – BOOM TIMES, EMPHASIS ON LARGER EQUIPMENT

1980s ONWARD – SHIFT TO URBAN WORK,

EMPHASIS ON SMALL TO MID SIZEEMPHASIS ON SMALL TO MID-SIZE

MACHINES, ENHANCED EASE OF

OPERATION, SAFETY, REDUCED NOISE,

EMISSIONS

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BUCYRUS-ERIE 495-B 1400 t. ROPE SHOVEL