KAMY is the worldwide leader in manufacturing hydraulic cutters, road headers, tunnel support systems, and other specialized machinery used in the tunneling, mining, and construction industries. Through KAMY’s years of experience and innovative thinking, we can provide custom engineered solutions for nearly any project requiring rock excavation or concrete demolition.
KAMY is the leading manufacturer of roadheaders in the weight class of 13-80 tons weight. Our roadheaders offer interchangeable cutter heads, both transverse and axial and are custom engraved for each project. Our hydraulic cutters are suitable for material with uniaxial compressive strength ranging from 500 to 25,000 pounds per square inch. All of our products can be utilized in a variety of applications from rock excavation, trenching, demolition and concrete, to underwater cutting, tunneling, and scaling.
A. Abutment - In coal mining, (1) the weight of the rocks above a narrow roadway is transferred to the solid coal along the sides, which act as abutments of the arch of strata spanning the roadway; and (2) the weight of the rocks over a longwall face is t
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Learn MoreBertha, the world's largest tunnel-boring machine, ends its journey today. It has spent four years traveling less than two miles to build a new car tunnel underneath Seattle.
Learn MoreFrom the dark depths beneath Seattle, Bertha the SR 99 tunnel machine headed out of the muck and into daylight on Tuesday, completing a final push in a years-long effort to create space for a new highway beneath the city.
Learn MoreBig Bertha is a different name, and it refers to several different things which are not Bertha (tunnel boring machine). The most recognizable of which is the World War I …
Learn MoreThe Transportation Department has said it will be months before the huge machine named Bertha starts moving again. Officials insist the tunnel is still the "most expedient way" to replace the Alaskan Way Viaduct. The tunneling machine has been stalled sin
Learn MoreMachine Tool Introduction: The TK6511 CNC plane boring and milling machine is a newly developed high-torque, high efficiency, high rigidity, features state-of-the ... boring machine - DRC Machinery The leading source of planer type boring and milling mach
Learn MoreThe Nucleus (formerly Mount Desert Island Naval Facility) is a pre-War submarine base owned by the United States Navy before the bombs fell. DiMA allowed the Church of the Children of Atom to utilize the place and, in return, protect his old memories from
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Learn MoreThe tunneling machine known as Bertha began tunneling beneath Seattle in July 2013 (photo at right: ...
Learn More6 monster machines that are changing construction: #1 The ScreedSaver BOSS 240 smoothes out concrete using rollers and blades. It uses GPS to ensure accuracy. #2 The Hunklinger makes bricklaying much quicker. It lays 1,000 bricks of any size and shape per
Learn MoreIt's official - Bertha has broken through! Seattle's tunnel boring machine that's been digging beneath the city for the State Route 99 tunnel reached the end of its 1.75-mile journey Tuesday, nearly four years after it embarked on the job. Just before 10
Learn MoreFollow Bertha Thank you for following Bertha. The SR 99 tunneling machine, nicknamed Bertha, has completed her work. For the latest tunnel progress, visit our new tracker page.
Learn MoreWhy are the eight tunnel boring machines (TBMs) used in London's mega Crossrail project all named after women (Phyllis, Ada, Elizabeth, Victoria, Jessica, Ellie, Sophia and Mary)? Why is the infamous TBM stuck underneath Seattle for the last two years cal
Learn MoreSeattle Tunnel Partners said evidence that its tunnel boring machine known as Bertha was damaged by a pipe in 2013 was either lost or damaged. Betha didn’t resume ...
Learn MoreBertha has made it to the finish line. The celebrity boring machine’s arrival near Seattle Center, some 29 months late, guarantees a Highway 99 tunnel bypassing downtown.
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Learn MoreAfter three years and millions of dollars in repairs, the SR99 tunneling machine in Seattle has resumed operations.
Learn MoreApr 04, 2017 · Bertha the tunneling machine broke through a new concrete wall into a disassembly pit. At first it was hard to see the machine's arrival through clouds of dust.
Learn MoreBertha was designed and manufactured by Hitachi Zosen Sakai Works of Osaka, Japan, and is the world's largest earth pressure balance tunnel boring machine, …
Learn MoreThe SR 99 tunneling machine has passed the halfway point on its long journey beneath Seattle, and officials stood 10 stories below street level on Monday to show off where Bertha is expected to punch through next spring.
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