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. 

Crushed Concrete Driveway For the Farm

Jun 22, 2015 · Some concrete plants might even give you their waste for free when they clean the plant. So when the price went down to a ton for crushed concrete (compared at a ton for gravel) we bought 100 tons.

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.

Quikrete 50 lb. All-Purpose Gravel-115150

Is this gravel good for drainage for fire pit? I have dug a 24in deep by 12in wide hole in the middle of my wood burning Concrete fire pit in fill it up with that gravel. And I am trying to make sure it is ok for good drainage before I add 2"play sand and lava rock on top. I could not find any Quickrete 3/4 gravel.

Alquezar - We manufacture plants for the production of gravel

Plants for the production of gravel-cement The Alquezar gravel-cement plants provide high yield and considerable production thanks to their belt feeder system and the continuous mixing, offering a low cost product, ideal for preparing road and motorway substrates.

Home of Southern Crushed Concrete: Texas Owned Since 1991

RECYCLING, DEMOLITION AND ASPHALT Southern Crushed Concrete (SCC) is a Texas-owned company established in 1991. With the use of practical and inexpensive methods, SCC is able to produce recycled concrete and asphalt for a variety of construction projects throughout Southeast Texas.

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. ...

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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 ...

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Lawnboy Enterprises Ltd

- Soil, Rock, Cement Bin Rental Service ( for garden sod & dirt, or broken concrete only ) - We accept dump soil & clean concrete (no rebar) for a fee. All Sales final, no return & no exchange. New products: Safety Salt 0/yd, 0/0.5 yd, $ 7/about 20 L bag ( not availabe now ) Stucco Sand, Fine Sand $ 61 / yd

DIY Pea Gravel Concrete Finishing

Jul 17, 2017 · Pea gravel concrete finishing can be completed by the average do-it-yourself homeowner. The mixture consists of pea gravel and Portland cement, and it is finished similarly to regular concrete finishing. You can complete your finishing project in one to two days, depending on the size and scope of the project.

Hamilton Redi-Mix

Each of our plants are equipped with the latest in computerized batching equipment to accurately batch high quality concrete to meet your project requirements. No job is too large or too small. In addition to ready-mixed concrete, Hamilton Redi-Mix operates a sand and gravel operation southeast of Jefferson, Iowa.

Dragon Products Company

Dragon has received the Governor’s Award for Environmental Excellence in both 1998 and 2004, process waste water is either recycled within the plant or treated and disposed of at the Thomaston Sewer Facility

Our Plant Locations in NH, ME & VT

Our plants are located throughout Vermont, New Hampshire & Maine. We are able to reduce hauling costs by having so many strategic locations.

The Spanish Manufacturers´ Association of Construction

The Spanish Manufacturers´ Association of Construction, Public Works and Mining Equipment, ANMOPYC, is a sector, private and non-lucrative organisation founded in the year 1982 with the purpose of defending the interests of the Spanish Construction, Public Works and Mining companies as well as contributing to strengthen their presence in foreign markets.

Paving Company & General Contractor in Virginia

From fill sand and topsoil, to landfill clay and pea gravel—as one of Virginia’s largest materials distributors, we can deliver to you quickly. With more than 35 concrete mixers, we have the necessary equipment to custom mix, transport, and pour our quality ready-mix concrete perfectly.

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Brannan Sand and Gravel | Denver Paving Ready Mix and Pipeline

Jun 21, 2019 · Brannan Sand and Gravel produces asphalt for highways, residential streets, parking lots or other custom builds within the Denver Metro area. Brannan Ready Mix is an industry leader for concrete delivery in Denver for any type and size of job.

Gravel Cement Plants Maprein

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Dunco Rock & Gravel 3115 Sammonds Rd Plant City, FL Topsoil

It has one of the largest selections of mulch, flagstone and boulders. In addition, Dunco Materials provides an array of building products including expansion joints and rebar. The company also offers bagged cement products, such as mortar, portland and super stucco, precast concrete sills, lentils and parking bumpers.

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.

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Driveway Materials - 9 Popular Options to Welcome You Home

Lawn & Garden; 9 Popular Driveway Options to Welcome You Home From asphalt to brick, basalt to concrete, this is the stuff dream driveways are made of.

Dolese

Recycled concrete is a viable product for use as a base material to build roads, driveways or building pads. We recycle concrete at two of our locations, including the OKC Block Plant (located at SE 74th and Sunnylane Road) and our Seward Road Concrete Plant (located a quarter of a mile east of I-35 on the south side of Seward Road).

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Concrete Supply | Varra Companies, Inc

Varra Companies, Inc. Varra Companies, Inc. is a family owned and operated Sand and Gravel, Ready Mix Concrete and Recycled Materials supplier in Northern Colorado. We have 2 Gravel Pits, 2 Recycle Materials Locations and 3 Concrete Batch Plants. We believe in integrity, ethics and customer service as our top priorities.

Knife River

Knife River Statement on COVID-19. Construction is very much a people-first business. As the situation with COVID-19 (coronavirus) continues to evolve, Knife River’s priority remains the safety and health of our team members and the public.

Alquezar - We manufacture plants for the production of

Plants for the production of gravel-cement The Alquezar gravel-cement plants provide high yield and considerable production thanks to their belt feeder system and the continuous mixing, offering a low cost product, ideal for preparing road and motorway substrates.

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.