August 2003
Caterpillar and Terex Corp. agreed for Cat to acquire Terex’s worldwide electric-drive mining truck business and the Payhauler 350C all-wheel mechanical-drive haul truck; and for Terex to acquire Cat’s 5000-Series mining shovel patents and designs. The agreement does not include Cat’s 5080 and 5090B models. Under a marketing agreement, Cat dealers will distribute and service Terex’s O&K line of mining shovels and excavators.
Manufacturer News
In a subsequently announced agreement with Daewoo Heavy Industries, Terex will distribute Daewoo 13- to 47-ton crawler excavators and 2.0- to 5.3-cu. yd. wheel loaders in North America under the Terex brand.
The Association of Equipment Manufacturers (AEM) pledged up to $1 million to match its members’ contributions in 2003 to an industry effort to ensure passage of federal transportation funding.
Instantel introduced a new logo featuring four stripes that symbolize earth, wind, fire, and water.
Atlas Copco CMT USA assumed full responsibility for managing Atlas Copco Wagner Parts and Service following a two-year transition.
Vari-Stem updated its web site to include blasting plug product testamonials and a recent field study.
Bridgestone/Firestone North American Tire realigned its business into four operational units, including a newly formed group, Off-Road Products.
B-TEK Scales is doubling its manufacturing space with an expansion of its Canton, Ohio, facility. Durline Scales, a B-TEK subsidiary, is moving its manufacturing operations from Madison, Wis., to Rockford, Ill.
Midwest Industrial Supply acquired Martin Marietta Magnesia Specialties’ Dust-Buster dust suppression business line. Midwest is retaining key Dust-Buster personnel.
Cashman Equipment Co., a Caterpillar dealer in Nevada, appointed Don Lohouse as quarry and aggregate sales representative.
Impact cradle absorbs forces
Martin Engineering’s Guardabelt heavy-duty impact cradle is designed for conveyor transfer points that experience loading-zone impacts up to 17,000 lb. Impact bars are composed of a 1-in.-thick layer of UHMW polyethylene for the belt to glide over, backed by a 4-5/8-in. layer of rubber to cushion impact forces. Each bar is reinforced with a backbone of mild steel. Guardabelt absorbs the force of falling material, preventing damage to the belt and structure and stabilizing the belt’s line of travel to prevent spillage, according to Martin Engineering.
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V-bottom improves digging
Kenco Corp. offers a V-Bottom Rock Bucket for crawler excavators. Heat-treated alloy construction provides greater strength and wear in rough digging applications and the V-bottom improves penetration, according to Kenco.
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Shopping for idlers, pulleys
Superior Industries published a new Idler & Pulley Catalog covering its complete conveyor components line. The catalog is available in print, on CD, or online at www.superior-ind.com. Detailed illustrations and specification tips aid selection from many styles of idlers, pulleys, brackets, bushings, and components, Superior says.
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Cones create self-renewing wear surface
Arch Environmental Equipment’s Simplicity Chute Liner is made of 18- x 18-in. sheets of polyurethane formed with a multi-cone surface. As material impacts the chute, it builds up between the cones, developing a “self-renewing” wear surface. The chute liner also acts as a noise barrier and lasts about three times longer than a flat liner, Arch says. The sheets can be cut to fit existing chutes and are attached with bolts or studs through reinforced holes in the liner. Simplicity Chute Liner is designed for use with 1-in.-minus material.
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Redesigned hammer makes bigger impact
Caterpillar’s redesigned H140D hydraulic hammer delivers an impact energy rating of 3,155 ft.-lb. with an impact frequency of 350 to 600 blows per minute, the company says. With an operating weight of 5,182 lbs., the hammer is matched to Cat 325C and 330C excavators, or comparably sized machines. Hydraulic operating pressure is 2,321 psi. An automatic shut-off feature prevents blank firing, reducing internal heat and stress, lowering maintenance costs, and extending hammer life, Cat says.
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Handheld data mapper has wireless communication
Leica Geosystems introduced the GS20 Professional Data Mapper (PDM) that combines a GPS receiver, antenna, data collector, and Bluetooth wireless communication system in a handheld unit. The GS20 uses DGPS correction technologies to achieve sub-meter accuracy without a backpack unit, the company says. A high-resolution, high-contrast screen provides a graphical map display. The unit is field-ready, requires little set up, and has a menu-driven interface.
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Tracked Primary Sized for Transport without Disassembly
Cedarapids expands its Cobra series of portable horizontal-shaft impact (HSI) crusher plants with the open-circuit CobraTrack 1300. The self-contained plant’s 9-ft. 4-in. travel width and 12-ft. travel height allows transport without component disassembly or oversized permitting. CobraTrack 1300 features a Cedarapids 5048 HSI with a solid steel, three-bar rotor and 45.5- x 40.5-in. feed opening to produce up to 400 tons per hour, according to the company. A remote unit provides control of the track-mounted crusher’s movement and of the 60-in.-long, variable-speed vibrating grizzly feeder. Fines can be directed to a 24-in.-wide cross conveyor or to the 42-in.-wide front crusher discharge conveyor. A hydraulically-driven magnetic separator is permanently mounted over the discharge conveyor.
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Rock miner cuts 10-ft. swath
Trencor, an Astec company, introduces the 3000SM Surface Miner with cutter drum for mass rock excavation in mining, road construction, or site development. The 300,000-lb., four-track machine is powered by a Cat 3512, 12-cylinder engine producing 1,550 hp. It has three steering modes — standard front steer, coordinated four-track steer, and crab steering. The Surface Miner can excavate a path 10 ft. wide and up to 26 in. deep in a single pass, Trencor says.
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Hardfacing wire contains chromium carbide alloy
Stoody CP2000 open-arc welding wire for hardfacing is a chromium carbide alloy designed to produce a high concentration of primary carbides for improved wear resistance. It can be applied to carbon, low-alloy and manganese steels, and cast irons in some applications. CP2000, with a hardness HRC of 58-64, is available in two sizes — 7/64-in. diameter wire with an amperage range of 400 to 650 and a voltage range of 28 to 32; and 1/8-in. wire with an amperage range of 450 to 650 and a voltage range of 29 to 32. Neither wire requires any shielding gas, Stoody says.
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Portable recycling systems
Grasan offers a brochure describing it road-portable recycling systems for concrete, asphalt, and other construction and demolition debris. The brochure illustrates a typical plant layout and set-up procedures and details components of the Hazemag horizontal-shaft impactor.
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Horizontal screen suspension system isolates vibration
Universal Engineering reintroduced the ScreenMaster horizontal vibrating screen. The ScreenMaster features deep channel framing and heavy plate construction with optional knockout plates for field installation of spray bars. A fully lined impact feed box absorbs shock loading and distributes material over the full width of the screen. Each deck is built 4 in. wider than most competitive models, says Universal, which provides 10 to 20 percent more usable screen area. An air spring/phasing arm suspension system helps isolate framing and support structures from vibration, the company says. Screen decks are removable on most models for easier replacement of screen wire from above. The two overhead alloy steel counterweight shafts are timed through positive timing and drive gears.
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Tier II loader expands line
Hyundai Construction Equipment expands its line of wheel loaders with the HL780-3A and HL780XTD-3A, the largest and most powerful loaders in its 17-model line. The new 7.2-cu. yd. loaders are powered by 320-hp. Cummins QSM11 Tier II electronic-control engines. Redesigned loader cabs and control centers include electronic engine diagnostic function, fully automatic shift levers, joystick control levers, centralized electronic monitoring systems and instrument panels, and an optional ride-control system. An Ergopower automatic transmission control system uses proportional valves for precise clutch control, Hyundai says.
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Track-mounted impactor and screen operates in closed ciruit
Pegson’s closed-circuit 4242SR horizontal impact crusher plant can produce up to 396 tons per hour, depending on feed material and product size, the company says. It has a two-step vibrating grizzly feeder, double-deck 11- x 5-ft. vibrating screen with hydraulic drive, built-in underscreen and folding side conveyors, dust-supression sprays, and PLC and plant controls.
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Belt scale has isolated load cell
Controls Technology Inc. (CTI) offers a low-cost belt weighing system with an accuracy of +/-0.5 percent, according to the manufacturer. The belt scale features pre-wired surge protection and a load cell isolated from the frame for lightning protection. The scale is available in all standard belt widths, says CTI.
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