User:Laventure/P&H MinePro Services Canada

P&H MinePro Services Canada
P&H MinePro Services Canada is a provider of equipment and services to the surface mining, construction and logging industries in Canada. Founded in 1884 by Alonzo Pawling and Henry Harnischfeger, P&H MinePro became a global organization in 1996. They are a division of P&H Mining Services located in Milwaukee, Wisconsin.

Contents


 * History


 * Model Range


 * References


 * External Links

History

Sixteen-year-old Henry Harnischfeger moved in 1872 from his native Germany to pursue a career in America. After accumulating considerable industrial manufacturing experience, Henry migrated to Milwaukee in 1881 to join the Whitehill Sewing Machine Company. There he met Whitehill co-worker and pattern maker, Alonzo Pauling. Pauling had been providing local industrial firms with wooden patterns to make molds for the casting of foundry machinery parts. The two eventually partnered in a new venture, the Pauling & Harnischfeger Machine and Pattern Shop.

In 1887, industrialist Edward P. Allis approached Pawling & Harnischfeger to re-build a poorly designed overhead bridge crane that had crashed to the floor of the Allis foundry. P&H replaced the awkward rope-and-pulley mechanisms with direct-drive motors and transmissions for the hoist, trolley and bridge drives. The resulting overhead crane attracted other industrial firms to acquire the P&H product. During their first years in business, Pawling & Harnischfeger made patterns and parts for industrial sewing machines, brick-making machines, beer-making machines and link belts for conveyer belt material handling systems. Better known by their customers as P&H, they would, by the 1900s, diversify into earth-moving engineering and manufacturing.

At the onset of America’s entry into World War II, P&H’s manufacturing operations turned its focus to defense, directing its efforts to hoists for aircraft carrier maintenance and repair, construction cranes for Navy Seebees and shovels for iron ore, copper and other mines that contributed to the war effort.

During the 1940s and 1950s, P&H was serving heavy construction projects designing excavating machinery for mines and quarries that made better use of available power. In 1952, they introduced the largest excavator ever mounted on a single pair of crawler frames created primarily for use in strip mining.

Model Range


 * Trenching machines were among the first P&H digging machines built in 1912


 * P&H excavators of 1945 mark the beginning of a post-war, worldwide industrial boom


 * The P&H 2800 electric shovel debuted in 1969 with a 25 cubic yard dipper capacity, solid-state electronic control and planetary propel


 * P&H’s 1976 2800-class shovel has an increased dipper capacity of 40 cubic yards and featured “Electrotorque” solid-state control for DC motors


 * P&H launched the 4100 shovel series in 1996, which provided DC-digital “Electrotorque Plus” drive and information systems


 * The 4100XPB introduced in 1999 was tailored to 240-ton, 320-ton and 360-ton mine haulers

References


 * Wisconsin Historical Society Archives

External Links


 * Wisconsin Historical Society


 * Official websites