McLanahan

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McLanahan offers a wide selection of Impact Crushers for quarried limestone and semi-abrasive minerals. McLanahan draws from the 75 years of field experience with the Universal line of Impactors, which includes impact breakers and Andreas-style impactors. At present, we offer the New Holland-style primary impact breaker and the MaxCap X-Series Primary, providing a means to reduce quarry shot and ROM materials at rates exceeding 2,000 tph. We also offer VersaCap P-Series Impactors for heightened portability as a primary crusher. The VersaCap R-Series is also designed to accept large top size in highly friable materials, and will allow for single crusher reduction to 1-1/2” minus product. In the case of limestone and similar materials, we offer the NGS Impact Crusher as a secondary impactor, which is capable of producing construction grade aggregates or minerals of like size. These five lines of horizontal shaft impactors are available in multiple sizes to provide us the ability to offer the most appropriate crusher for your specific application. 

Concrete plants

Fixed, portable or mobile plants. Wet-mix or Dry-mix plants. Aggregate storage varies in number of hoppers and total volume capacity. The number and capacity of cement silos varies according client needs. Automatic control of dosing and weighing.

How to Cement a Post in the Ground: 9 Steps (with Pictures)

Jan 16, 2020 · Pour the concrete into the hole until it’s 2–3 in (5.1–7.6 cm) below ground level. Use a shovel or hoe to transfer your concrete into the hole. Make sure to evenly pour the concrete on all sides of your post so the hole fills in completely. Leave at least 2 inches (5.1 cm) between your cement and ground level so you can cover it later.

Aztec Materials

DVC Concrete’s Aztec Materials plant in Hammonton, NJ is a 600 acre complete wet and dry sand & gravel plant. All gravel is cleaned of its impurities at two locations in the process and separated into three separate sized stockpiles. Our plant has a continuous feed system and our quality controls from Aztec Materials is second to none.

Pine Bluff Sand & Gravel

Pine Bluff Sand & Gravel. Pine Bluff Sand & Gravel has been laying a foundation for the future since 1913. We specialize in marine construction and material production/sales throughout the Midsouth, expanding from Southeast Arkansas along rivers and waterways through Louisiana, Kentucky and Tennessee.

Our locations | LafargeHolcim in the US - Cement, concrete

So the world builds better . LafargeHolcim in the US: A Leader in the Building Materials Industry. As a world leader in the building materials industry, LafargeHolcim Ltd and its subsidiaries have the assets necessary to meet the building and design challenges of today’s increasing urbanization.

Diseño de planta y equipo de cemento sólido

Nuestra historia - EUROMECC Concrete Batching Plants. Los orígenes: En 1969 la familia Attanasio funda la OMC, empresa especializada en el diseño y en la producción de mezcladoras para el sector del hormigón y de hormigoneras tanto con motor auxiliar como con toma de fuerza.

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Mortar plants

Mortar plants. The configuration of a mortar plant change significatively depending on the products to be made, the production volume, material logistics and other conditions. The customized design is necessary. Among the main characteristics of our mortar plants, we have:

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Vulcan Materials Company

A Strong Foundation. Vulcan Materials Company is the nation’s largest producer of construction aggregates—primarily crushed stone, sand and gravel—and a major producer of aggregates-based construction materials, including asphalt and ready-mixed concrete.

Salmon Bay Sand & Gravel Co. | Salmon Bay Sand and Gravel

Located in Ballard,WA, Salmon Bay Sand and Gravel Co. is a fourth generation family owned business. We are a leading supplier of: sand, gravel, ready mixed concrete, tools and products used in the concrete, plaster, stucco and masonry trades.

Construcción de plantas industriales de suelo cemento

Sobre MAPREIN CREANDO CONFIANZA desde 1986, nos especializamos en el diseño y construcción de plantas de , plantas de mortero, plantas suelo cemento y equipo relacionado como son las mezcladoras, silos y otros elementos.

Atlas Sand, Rock, and Concrete | Lewiston and Moscow, Idaho

Atlas Sand & Rock is a fourth-generation family owned business based in Lewiston, Idaho. We specialize in crushed and washed aggregate and concrete products. With Ready-Mix concrete plants in Lewiston and Pullman, and ten aggregate sources within the Quad-Cities area, we are able to quickly and efficiently supply a wide variety of products for ...

Kenmore Ready Mix Plant and Aggregate Yard

The CalPortland Kenmore Aggregate Yard stocks an extremely wide variety of aggregate products. Many products meet WSDOT and City of Seattle specifications. Our location provides convenient access to projects at the north end of Lake Washington and the communities nearby.

Will Cement Kill My Plants? | Home Guides

In today’s home landscape cement is used to construct homes, driveways, even paver stones. Though it’s common to refer to concrete as cement, the two are not the same thing. Cement is one ...

Best 30 Sand Gravel in Manteca, CA with Reviews

Sand Gravel in Manteca on YP.com. See reviews, photos, directions, phone numbers and more for the best Sand & Gravel in Manteca, CA.

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Big Js Series Foam Asphalt Mortar Cement Mixers

According to the work mode, JS series small cement mixer belong to cycle operation type, that is to say, feeding, mixing and discharging, these three working processes are conducted in a certain time interval, so the mixing 2. ...

Used and new Concrete equipment

Used and new Concrete equipment . 1,219 ... Concrete mixer is a device that homogeneously mixes cement, aggregate (sand or gravel) and water to form concrete. It has a revolving drum to mix the components. Concrete Lorry: this type of truck is different from a traditional mixer lorry.

Locations | Varra Companies, Inc

Locations for Varra Companies, Inc. The largest family owned Concrete Supply, Sand & Gravel & Ready Mix Concrete Supply Co. in Northern Colorado

Jamestown Macadam, Inc. 14720

Jamestown Macadam, Inc.has been involved in the sand, gravel, asphalt, ready mix and precast business for over 50 years. Since the original operation which started in the 60’s we have grown to include 4 sand & gravel operations, 3 hot mix plants, one contractor supply outlet, 3 ready mix operations and a precast operation.

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Seffner Rock & Gravel: Landscaping rocks, mulch and cement

Seffner Rock & Gravel has the best prices and largest selection of landscaping rocks, dirt, sand, mulch, boulders, meter-mix cement and supplies in Tampa.

Sobre nosotros

En MAPREIN fabricamos equipos de acuerdo a los más altos estándares de la industria haciendo uso de tecnología de vanguardia y marcas reconocidas internacionalmente en los componentes que integramos.

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New Enterprise Stone & Lime Co., Inc

We live by a commitment to our customers, pledging to construct their projects safely and deliver the highest quality end product.

Quality Concrete in Escalon | P & L Concrete Products, Inc

For more than 30 years, P & L Concrete Products, Inc. has been dedicated to bringing quality landscape and concrete supplies to the Central Valley area. Our staff is experienced in both gardening and in creating concrete products for your specific project. Many of them are gardeners themselves.

How to Grow Grass on Gravel

You can grow turfgrass on gravel, but keep in mind that you will have to provide what gravel won't, namely nutrients and moisture. Give the gravel a fresh grade, crowning to guide runoff away from buildings. While grading, rough up the surface to provide new grass roots a grip.

Frequently Asked Questions

If I am trying to reduce my fines in a limestone quarry, should I use a Jaw Crusher instead of a Primary Impactor?

While it is true the Jaw Crusher will create less fines (say, minus 3/16”), it also creates more plus 1-1/2” material to be crushed downstream at the secondary and tertiary stages. Regardless of the type of crushers used downstream, the amount of fines generated in those closed circuit operations will actually be greater than any increase caused by a primary impactor. 

How do the power consumption figures compare between Primary Impactors like the MaxCap and the VersaCap?

Since one employs an expansion chamber over the rotor and the other doesn’t, the MaxCap will perform at ½ hp per ton, while the VersaCap averages ¾ hp per ton. Electric motors will only draw as much power as the crusher needs. However, the theoretical difference in a 500,000-ton quarry or mine is about 90,000 kW/hours. That reflects only the primary crusher, not the added power it takes downstream to also recirculate 30% more rock through the secondary circuit.

Why do I see so many Impact Crushers in concrete recycling when the material is 100% abrasive?

Unlike sedimentary stone, e.g. limestone or sandstone, weathered concrete is very soft and friable. Most concrete pavement is less than 1,500 psi and pre-broken into slabs 2’ to 3’ square.  Due to the friability, they shatter quickly into particles 3” and smaller on the initial pass through the impactor. The hammer wear life tends to be far shorter due to the abrasion, but recirculating loads are minimal for base material. In the case of a mobile contractor, single crusher systems are far more economical when relocating on a regular basis. 

What is the main difference between the VersaCap P-Series and the R-series? Are they both primary impactors?

Yes, they are both primary impactors. In fact, the only real difference is the rotor assembly. The VersaCap P-Series is a primary impactor that accepts 30” boulders in quarried stone, and generates a nominal 6” minus. The VersaCap R-Series uses the same housing, but the rotor is designed specifically for large, highly-friable materials like concrete rubble. In the case of recycling concrete, the R-Series rotor is lighter in weight for portability, and the hammers are thinner, reducing the cost of spent hammers. 

Under what circumstances should I consider automation for adjusting an Impactor?

The MaxCap Primary Impactor comes standard with fingertip control. While not fully automated, it is designed to integrate into any programmable logic controller based system. As for the other impactors, the vast majority of operations will be fine with a simple shim adjustment, which requires no automation. However, the semi-automatic system on the VersaCap and NGS Impactors essentially requires only an electrical control over the hydraulic system, which would be running during operation. Once you find the right setting, and plan to stay consistent, you can add shims, and shut off the hydraulic power unit. If you are anticipating the need to change settings on a regular basis, the full automation system with PLC and touch screen is available and capable of being integrated.