Pit & Quarry articles from May 1999

Pit & Quarry archives from May 1999

Seeking success stories.
May 1, 1999... Pit & Quarry is once again accepting nominations for the Pit & Quarry "Success Story" awards. The awards program honors operations that exemplify outstanding commitment to the quarrying profession in the areas of operations, technology,...

Request product info online.
May 1, 1999... Pit & Quarry recently added "LeadNet" to the list of online services available at www.pitandquarry.com. The service - the latest in a line of Web site enhancements - will allow Pit & Quarry readers to instantly request information about...

Get a Web site FREE!
May 1, 1999... Stone producers who want to take advantage of the World Wide Web can get a FREE Web site at Quarry World: www.quarryworld.com. To sign up, a form is available right on the site, or contact Darren Constantino, managing editor, at 440-891-2693.

Heenan writes safety book.
May 1, 1999... Pit & Quarry legal editor Mike Heenan has written a book entitled Safety and Health at Mines: A Manual for Operators and Contractors. The book is designed to be a quick and easy guide to understanding MSHA requirements. Quarry operators can...

Highway report "fatally flawed".
May 1, 1999... A major environmental policy group proposal would harm the motoring public and the economy by ignoring suburban road congestion and safety, according to an analysis by Dr. Bill Buechner, vice president of economics and research at the American...

Committee continues developing standards.
May 1, 1999... The ISO TC 207 committee of the American Society of Testing Materials (ASTM) continues to develop the ISO 14000 series of environmental management standards. The following nine ISO standards have been approved and published: 1. ISO...

Cement numbers.
May 1, 1999... The Monitor is a monthly analysis of trends in the construction and cement industries published by the Portland Cement Association. According to the latest edition: * Consumption of portland cement was 99.3 million metric tons in 1998, a...

U.S. machinery exports declined in 1998.(construction machinery)(Brief Article)
May 1, 1999... Exports of American-made construction machinery posted a 211/42 percent decline in 1998 compared to the previous year, as manufacturers shipped $6.88 billion worth of equipment to worldwide markets. Despite the slip, the U.S. construction...

Miner training rule proposed.(Mine Safety and Health Administration)
May 1, 1999... The Mine Safety and Health Administration (MSHA) has moved one step closer to putting training regulations in place for the 120,000 miners at 10,000 surface nonmetal mines across the United States. A proposed rule establishing training...

Determining employee disability.
May 1, 1999... Do any of your employees take medication for high blood pressure or diabetes? Do any wear glasses or contact lenses? Are there positions at work where such corrected or uncorrected conditions may be relevant to their safety needs? If so,...

After the injury.(reduction of the severity of injuries)(part 3 of 3)
May 1, 1999... This is the third article in a three-part series on the causes of injury. - ed. In the previous two columns, safety guru William Haddon's first eight strategies for reducing the effects of injuries were reviewed. The Pre- Contact phase was...

By the book.(summary of Safety and Health at Mines: A manual for Operators and Contractors)
May 1, 1999... Advanstar Communications, the publisher of Pit & Quarry, recently published my new book: Safety and Health at Mines: A Manual for Operators and Contractors. I thought it might be helpful to explain the book. In as few words as possible,...

Midwest report.(market conditions for stone producers)
May 1, 1999... Driven by record or near-record demand for aggregate, market conditions for stone producers in the Midwest region of the United States are exemplary. Strong local and regional economies, coupled with generally upbeat conditions nationally and...

MegaProducers.(production of crushed stone, sand, and gravel)
May 1, 1999... For the third straight year that Pit & Quarry has published MegaProducers, the aggregates industry has achieved record-breaking numbers. After a record 1997 production that crossed the 2.3- billion- metric-ton threshold, 1998's production of...

John Deere delivers enviro-friendly lube.(Bio Hy-Gard hydraulic/transmission fluid)(Brief Article)
May 1, 1999... Equipment performance is essential, but some lubricants sacrifice this for the sake of biodegradability. Bio Hy-Gard from John Deere is a hydraulic/transmission fluid that the company says provides both biodegradability and superior...

Olympic-sized challenge.(Granite Construction Co. road project in Park City, Utah)
May 1, 1999... Granite Construction Co. of Watsonville, Calif., is known for large- scale civil engineering projects, such as dams, airports and highways. However, one of the most challenging jobs they've undertaken is a seven-mile road and bridge project in...

New software optimizes plant, simulates process.
May 1, 1999... Lucie, a modular software solution for simulating and optimizing aggregate production plants, is now being made available by the French think-tank SITIA, which created it with a consortium of European partners. Lucie provides rapid product...

Better Bite: The proper selection and use of jaw crushers increases production, while decreasing wear costs and downtime.
May 1, 1999... If you operate or service a jaw crusher, you're aware that many variables can affect the performance of these apparently simple devices. Many jaw crushers perform at less than their optimum capability. Improvement requires a careful analysis of...

Jaw surfaces: Smooth versus toothed.(jaw crushers)(Brief Article)
May 1, 1999... The smooth-surface jaw plate still have advantages in some applications. It does the most accurate job of product sizing in fine crushing. It works well with softer, friable materials. It is less prone to plugging by sticky materials than...

Size Matters: Three new triple-deck screens helped a Washington state producer complete its first Superpave project.(Morrill Asphalt and Johnson Crushers International)
May 1, 1999... Screening equipment is arguably the most important facet of aggregate processing. If there's a bottleneck in a crushing operation, it usually occurs at the screen. So when it was time for Wennatchee, Wash.-based Morrill Asphalt & Paving Company...

Front Row Seat: Good blast performance, safety and efficiency begin in the front row.
May 1, 1999... Proper design and implementation of the front row of a production blast are key to successful production blasting. This is quite fundamental, but is not always given the attention it deserves. Front row holes are the first to relieve along a...

MegaProducers.
May 1, 1999... In this issue, Pit & Quarry once again lists the industry's MegaProducers - the top 50 crushed stone, and top 50 sand and gravel producers in the country. These operations are directly responsible for producing much of the aggregate being...

Getting More From Your Truck Engine: Proper driving techniques, performed over time, can save fuel and add to the bottom line.
May 1, 1999... For a long time, driving a truck was considered just a job and drivers learned from the school of hard knocks. Today, driving is clearly a profession. And, as professionals, drivers need to get the most from their truck engines. "Anyone...

Crusher.
May 1, 1999... Eagle Crusher Co.'s UltraMax 69 impact crusher was on display at ConExpo-Con/Agg. It features a 69-in. feed opening that is 7 in. wider than the largest jaw crusher on the market. Featuring a solid-steel rotor, the UltraMax 69 will absorb the...

Excavators.
May 1, 1999... Liebherr Construction Equipment now makes five large hydraulic excavators for the mining and quarrying industries, with service weights from 242,000 lb. to 1,270,000 lb. To meet customer requirements for a modern and economical loader for haul...

Welder/generator.
May 1, 1999... The Lincoln Electric Co.'s Commander 500 DC multi-process, engine- driven welder/generator features Lincoln's Chopper Technology that controls the DC welding output to create an arc with superior welding performance, says the company. The...

Automatic data collection.
May 1, 1999... Instantel Inc. debuted its Auto Call Home feature of BlastWare III software at ConExpo-Con/Agg. The Auto Call Home feature offers reliable and automatic data collection for remote monitoring sites. Instantel's Blastmate Series III and MiniMate...

Belt feeders.
May 1, 1999... Saunco Air Technologies offers the Noble line of belt feeders, designed for reclaiming tunnels and loader-fed hoppers to accurately feed finished aggregate or asphalt at more accurate feed rates. Available in three sizes, the Noble belt...

Stacking conveyors.
May 1, 1999... Superior Equipment's 125-ft. portable radial stacking conveyors are designed for fast set up and tear. Features include a fold-down axle assembly with a wide footprint when stacking, narrow travel width, total hydraulic operation, heavy-duty...

Transmission.
May 1, 1999... Dana's Off-Highway System Group offers the Spicer 2+2 transmission, designed for front-end loaders up to 28 tons operating weight. Vehicle testing has resulted in better fuel economy, shift quality and driver comfort, says the company....

Radial tire.
May 1, 1999... Michelin North America's Earthmover Group offers the X Quarry radial tire for rigid dumps. The X Quarry features an extra-deep, long-lasting tread that keeps machinery moving in severe, rugged conditions. Square shoulder blocks and tread...

Pedestal boom system.
May 1, 1999... Indeco's ConExpo-Con/Agg booth showcased a series of stationary boom systems designed to simplify primary breaking of rock in mine and quarry applications. The series features three sizes of pedestal-boom mounting arrangements that accept...

Rollercone.
May 1, 1999... Cedarapids/ElJay's Rollercone MVP is available in two models, the MVP 380 and MVP 450. The MVP offers Advanced Crushing Technology that incorporated a longer stroke, steeper head angle and higher speeds that enhance product throughput...

Diesel engine.
May 1, 1999... Cummins Engine Co. unveiled its QSX15 diesel engine at ConExpo-Con/Agg. It features totally integrated electronics to link engine and equipment performance. According to the company, the QSX15 is a product of the first clean-screen design in...

Operator interface.
May 1, 1999... Rockwell Automation/Allen-Bradley offers a 10.4-in. flat-panel operator interface as part of its Allen-Bradley Panel View enhanced operator interface terminals. The PanelView 1000e features a color active matrix thin film transistor for...

Surface crawlers.
May 1, 1999... Atlas Copco launched three new ROC surface crawlers at ConExpo-Con/Agg. The ROC Power Generation rigs operate with three drilling methods - down-the-hole, top-hammer and Coprod. One of the crawlers, the ROC F9 CR, is equipped with a Cat engine...

Industrial engines.
May 1, 1999... Caterpillar, in one of three booths at ConExpo-Con/Agg, displayed its 3456 and 3196 industrial engines. The 15.8-liter 3456 engine is available at intermittent ratings ranging from 450 bhp to 600 bhp. The engine offers more horsepower from the...

Crusher wear parts Columbia Steel Casting Co.
May 1, 1999... offers crusher wear parts for a variety of crusher types, including cone crushers. Columbia Steel's offerings for cone crushers include mantels, bowl liners and concave rings in a wide variety of standard and custom designs. Also offered are...

Aggre-Washer.
May 1, 1999... GreyStone Inc. displayed in its booth a portable Aggre-Washer and Screening Plant that can be relocated and ready for processing in a single production shift. GreyStone has five portable models with horizontal screens and 10 semi-portable...

Wear protection.
May 1, 1999... Svedala Industries debuted its Trellsquare modular system for wear protection at ConExpo-Con/Agg. The Trellsquare offers built-in flexibility so that it can be adapted to each specific application. Easily attached modules of rubber,...

Oval motion screens.
May 1, 1999... Johnson Crushers International offers double- and triple-deck oval motion screens in sizes ranging from 5 ft. x 14 ft. to 7 ft. x 20 ft. The oval stroke shed length and timing angle can be quickly changed to accommodate a wide variety of...

Quarry lip.
May 1, 1999... Esco's Loadmaster HDP Quarry Lip increases machine performance through better penetration, safer change-outs, improved reliability, reduced maintenance and longer wear life, says the company. Features include a flush-cut profile with...

Hydraulic oil.
May 1, 1999... Mobil Oil offers DTE Excel hydraulic oil for increased performance and coolant capacity in severe-temperature industrial applications. DTE Excel is formulated with no zinc, meaning water separated from spent coolant does not contain heavy...

Instrument controller.
May 1, 1999... Milltronics' BW500 mass dynamics integrator was on display at ConExpo- Con/Agg. The versatile weighfeeder and belt scale integrator features a built-in remote telemetry unit, data-logging, limited programmable control functions and an optional...

Bucket elevator monitor.
May 1, 1999... 4B Elevator Components Ltd. offers the 4B Watchdog Elite bucket elevator monitor. It uses non-contacting, magnetic sensors to monitor belt speed and belt alignment at the head, boot or both. Additional sensors monitor bearing temperature, head...

Vibrating screen.
May 1, 1999... Centric introduced its first vibrating screen marketed under the Centric brand name at ConExpo-Con/Agg. The Ultra Screen combines technologies used by Centric's Hewitt-Robins, W.S. Tyler, SECO and Kue- Ken. It has oval-action, adjustable length...

Screening/washing plant.
May 1, 1999... Kolberg-Pioneer offers a revised version of the series 1800 portable screening and washing plant, the Model 1822. The Model 1822 plant features a horizontal 6-ft. x 16-ft. triple-deck screen complete with 14 spray bars each fitted with 19 spray...

Screening plant.
May 1, 1999... Production Engineered Products offers Fold 'N Go, a screening plant constructed with a 16-ft., I-Beam perimeter frame with dual-axle assembly. The 8- x 14-ft. feed hopper holds 10 cu. yd. and has a variable-speed hydraulic belt feeder. The...

Tire Tips: Following these 10 steps can boost vehicle productivity.
May 1, 1999... Cranking up your machines after a long winter? Don't forget to follow important maintenance tips to ensure your tires operate at peak levels throughout the season. The key is checking tires regularly, according to Vickie Johnson, market...

Aggregate Machinery Inc.
May 1, 1999... Make an impact on your bottom line with the Thunderbird II horizontal shaft impact crushing plant. The impact crusher is fed with a vibrating grizzly feeder and the plant is mounted for travel with a fifth wheel towing plate and triple-axle...

TerraSource Software.
May 1, 1999... TerraSource Software presents quarry mining software. Quarry is a low- cost, fully functional modeling, design and planning software system specifically designed for the industrial rock and aggregates industries. Packages start as low as...

Loadrite North America.
May 1, 1999... The LR915 dynamic wheel loader weighing and information system offers weighing on the move, and produces 61 percent load-weighing accuracy for all makes and models of front-end loaders. New features include enhanced data capture storage and...

Major Wire Industries Ltd.
May 1, 1999... Flex-Mat(r) self-cleaning screens eliminate pegging and clogging. The top picture shows a pegged woven-wire screen (11/48-in. openings) pegged after four hours of operation, versus Flex-Mat(r) D screen (11/48-in. openings) after two weeks...

CIBA Specialty Chemicals.
May 1, 1999... The TwinTec System, a counter-ionic dewatering treatment, consists of both flocculant reagent (powder) together with a bespoke preparation and dosing system. Aimed at reducing costs in multi-roll filter applications in the sand and gravel...

Exxon Co. U.S.A.
May 1, 1999... A 16-page, full-color brochure describes Exxon's XD-3 Elite, XD-3 Extra and XD-3 engine oils. It provides information about applications for each oil, as well as key features. Charts show the wear protection provided by Exxon's XD-3 family in...

Roadblock.
May 1, 1999... Denied zoning approval and faced with strong public opposition, a landowner has vowed to continue his battle for permission to locate a stone quarry on a 235-acre mountainside tract near Hazleton, Pa. On June 10, 1998, Joseph Larock and...

Transportation Centers.
May 1, 1999... Among the many significant steps taken under last year's Transportation Equity Act for the 21st Century (TEA-21) was the expansion of the University Transportation Center (UTC) program. TEA-21 established 13 new UTCs, and reauthorized 14...

State Highway Research Program champion Francois retires.
May 1, 1999... Francis B. Francois, executive director of the American Association of State Highway Transportation Officials (AASHTO) and the driving force behind the Strategic Highway Research Program (SHRP), retired on January 29. As a member of the...

Welder.
May 1, 1999... Miller Electric Mfg. Co.'s Syncrowave 350LX, an AC/DC, TIG/Stick power source, produces better arc starts and a more stable arc, says the company. Its Lift-Arc feature permits DC starts without high frequency or tungsten migration and it allows...

Collision avoidance.
May 1, 1999... Superior Signals Inc.'s SuperSight collision-avoidance system is a high-tech system that allows the driver of a vehicle to view objects that are behind and out of sight from the vehicle's rear-view mirror. The SuperSight is equipped with a...

Weighbelt feeder.
May 1, 1999... Ramsey's Model 90.151 low-capacity weighbelt feeder is designed for applications with low feed rates and light belt-loading requirements. It can handle flow rates from 120 lb./hr. up to 50,000 lb./hr., and belt loading of 2 lb./ft. up to 20...

Controller.
May 1, 1999... Cattron offers a toggle-type controller for use with any Cattron MP 96 and MP 48 systems. It features power-on self-diagnostics, a two-stage battery indicator, industrial-grade components and advanced microcomputer technology. A rugged anodized...

Tandem axle.
May 1, 1999... Kenworth Truck Division offers a 40,000-lb. tandem-drive axle that allows for more powerful and durable vehicles while minimizing weight and cost. The axle is designed for high-torque, high-horsepower on- highway trucks. The DSH40 tandem axle,...

Belt cleaner.
May 1, 1999... Martin Engineering offers a large-scale belt cleaner designed for tough conveyor cleaning applications. The SHD (Super Heavy-Duty) Belt Cleaner is designed for up to 120-in.-wide conveyors moving at speeds up to 1,500 fpm. The SHD cleaner and...

Loader.
May 1, 1999... John Deere Construction Equipment Co. incorporates environmental friendliness, operator comfort, productivity and safety into its 644H four-wheel-drive loader and 644H MH material handler. The emissions- certified Powertech 8.1-liter engine,...

Sleeve gear couplings.
May 1, 1999... Lovejoy's C-Type couplings provide up to 2.5 million in.-lb. of torque handling capacity, for mechanical power-transmission systems, in an all-steel construction only 60 percent of the size and 50 percent of the weight of flanged-steel gear...

Slurry knifegate.
May 1, 1999... Red Valve Co. offers the Flexgate Slurry Knifegate. Combining the advantages of a pinch valve and a knifegate valve, the Flexgate provides a full-port, bi-directional seal and a replaceable rubber wear surface. An inverted stuffing box makes...

Gasket tape.
May 1, 1999... W.L. Gore & Associates Inc. offers a form-in-place sealant product that is the only gasket tape made with multidirectional expanded PTFE. Gore- Tex BG gasket tape, with tensile strength orientated in all directions, maintains its original width...

Material analyzer.
May 1, 1999... Autometrics offers an analyzer that measures the elemental composition of bulk materials, such as ore or concentrate, on-line, as they are being transported by belt conveyor. The CrossBelt Analyzer generates analyses each minute, using Prompt...

Material handling.
May 1, 1999... Eriez Magnetics offers a four-page, four-color brochure detailing its range of products and services for aggregate processing. Products included are the Metalarm Quarry Master metal detector for large ferrous and nonferrous metals;...

Indicators.
May 1, 1999... Fairbanks Scales' 3051 intrinsically safe indicators can handle the harshest washdown and corrosive areas. The 3051 Series units are ultra- low-power indicators that are Factory Mutual approved for all classes, groups and divisions of the...

Material weighing and control.
May 1, 1999... K-Tron America offers a six-page, full-color brochure overviewing its line of digital solutions for heavy bulk-material weighing and control. The brochure highlights K-Tron's various products, including the Gravit weigh-belt feeder designed for...

Loader.
May 1, 1999... Daewoo Heavy Industries America offers the 250-III wheel loader. Part of the company's Mega Series, the 250-III is equipped with a 3.1-cu.- yd. bucket that features a bucket dump cushion. Undercarriage features include a tread width of 80.3 in....

Excavator.
May 1, 1999... Komatsu America International Co. offers the PC300LC-6 and PC400LC-6 hydraulic excavators. Features include Active Power Up Mode with five working modes; powerful emissionized Komatsu engines; HydrauMind hydraulic systems that allow load...

Asphalt plant.
May 1, 1999... Asphalt Drum Mixers' complete SPL Asphalt Plant delivers one-load portability and a 30- to 110-tph production capability. The SPL is designed for small production projects and combines the drying/mixing drum, cold-feed bin and surge system all...

Rate monitor.
May 1, 1999... Tecnetics Industries Inc.'s Tecweigh RM10 rate monitor provides a simple, cost-effective method of monitoring the rates and totals of a plant conveying process, with an accuracy of plus or minus two percent. The rate and total of the conveying...

Software package.
May 1, 1999... Laser Technology Inc.'s transmission and distribution software package, T&D Utility Pac, collects and processes critical measurements and calculations for T&D field workers. Designed to work with the company's Impulse laser rangefinder, the T&D...

Shock absorber kits.
May 1, 1999... Hendrickson Truck Suspension Systems offers shock absorber kits for its RT2 and RTE2 Series steel leaf spring suspensions. The kits are available in both two and four shock configurations. In either configuration, the shock controls the motion...

A large domestic and international audience attended ConExpo-Con/Agg '99 in Las Vegas and many exhibitors called the show a big success.
May 1, 1999... This year's event, which took place March 23-27 at the Las Vegas Convention Center and Las Vegas Hilton Center, included 1,883 exhibitors, more than 1.73 million net sq. ft. of exhibit space, and attracted more than 121,000 visitors from around...

ISEE holds 25th annual conference.
May 1, 1999... The International Society of Explosives Engineers (ISEE) sponsored its 25th Annual Conference on Explosives and Blasting Technique and Exhibition at the Opryland Hotel, Nashville, Tenn. in February. Participation was strong as more than...

Komatsu forms group to sell pre-owned vehicles.
May 1, 1999... Komatsu America International Co. has formed the Komatsu Remarketing Group, which will provide customers with pre-owned Komatsu equipment through its distributors in North America. "As an equipment supplier," he says, "we want to continue...

Construction contracting rate retreats 5%.
May 1, 1999... The value of new construction contracts fell five percent in March to a seasonally adjusted annual rate of $363.3 billion, according to the F.W. Dodge division of The McGraw-Hill Companies. Moderate declines were reported for each of the...

Vulcan announces public offering.
May 1, 1999... Vulcan Materials Co. announced the sale of $500 million of unsecured notes in two tranches of $250 million each due on April 1, 2004 and April 1, 2009. The 2004 notes will have a 5.75 percent coupon and the 2009 notes will have a 6.00 percent...

Vulcan acquires granite quarry.
May 1, 1999... Vulcan Materials Co. acquired a granite quarry operation from Maryland Materials. The quarry - located in Mitchell County, North Carolina - will be operated by Vulcan's Mideast Division. "We are very pleased with this opportunity to expand...