Peterson Corp. News


Tandem Operation

Tandem Operation refers to the operating of two machines at the same time for a specific task. An example of Tandem Operation would be operating a star screen that feeds into a stacking conveyor.

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Windrows

A windrow is a long low ridge or line of compost hay or other crop, designed to achieve the best conditions for drying or curing.

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Luffing

Luffing is the angle that the stacking conveyor is placed at, which then determines the dimensions of the stockpile that is being made. Depending on the type of material being screened, the pile may need to be at a lower …

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Lubo Quick Disconnect

The Lubo Quick Disconnect system is a feature in the Terra Select S60 Star Screen. It allows you to exchange star axles quick and easy, while reducing downtime and maintenance costs.

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Spearing

Spearing is an undesirable, odd sized material that pass through the grates with minimal size reduction. Terra Select screens help reduce the amount of spears by screening material based on size.

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Galvanizing

Terra Select Screens have conveyor belt frames that have been galvanized, meaning they are coated with a protective layer of zinc to prevent from rusting.

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Fines

Fines are screened material that falls below a minimum standard. This minimum standard is based on the opening size of the screening holes.

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2-Fraction Screening

With the use of a Star screen, or a Trommel screen, 2-Fraction Screening is the process of screening material to create 2 product sizes. Product sizes are "Fines" fraction, and "Overs" fraction and creates a consistent product consumers prefer.

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Tandem Operation

Tandem Operation refers to the operating of two machines at the same time for a specific task. An example of Tandem Operation would be operating a star screen that feeds into a stacking conveyor.

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Yard Drive

The Yard Drive is a wheel drive system that aides in the movement of a wheeled machine in an operation yard. The system consists of a steel wheel that applies pressure to a machines wheel and turns it for machine …

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Overs

Overs are oversized material that has not been sized through a particular screen size or star deck opening.

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3-Fraction Screening

With the use of a star screen, trommel screen, or deck screen, 3-Fraction Screening is the process of creating 3 product sizes. Product sizes are "Fines" fraction, "Middle" fraction, and "Overs" fraction.

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Recycled Asphalt Shingles (RAS)

Sometimes referred to as Reclaimed Asphalt Shingles (RAS); Recycled Asphalt Shingles are the byproduct of Asphalt Shingle Grinding. This is done by processing asphalt roofing shingles down to a smaller spec, usually 3/8”, in an effort to use recycled asphalt …

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Windsifter

The Windsifter is designed for separating light impurities, such as plastic, out of screened compost and biomass materials. The W70 Windsifter has an infeed hopper with an integrated dosing roller. The Terra Select Windsifter can be loaded via a wheel loader, …

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Right-Of-Way (ROW)

An easement that allows a third party to operate a project on a specified piece of land without needing to own it. Examples of these projects are land clearing of trees, limbs or roots for electric lines, pipelines, farming, or …

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Recycled Asphalt Shingles (RAS)

Sometimes referred to as Reclaimed Asphalt Shingles (RAS); Recycled Asphalt Shingles are the byproduct of Asphalt Shingle Grinding. This is done by processing asphalt roofing shingles down to a smaller spec, usually 3/8”, in an effort to use recycled asphalt …

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Throughput

Throughput is the amount of material that passes through a machine during a given amount of time. It is often measured in tons or tonnes per hour but can also be measured in cubic yards or meters per hour. Peterson calculates …

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High Cube Container

A standard 40 ft (12.19 m) shipping container is 8' 6" (2.59 m) high on the exterior. A High Cube Container is a 40 ft (12.19 m) shipping container that is 1' (0.31 m) higher than standard, or 9' 6" (2.9 m) …

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Biomass

Biomass is fuel that is developed from organic materials, a renewable and sustainable source of energy used to create electricity or other forms of power. Biomass can be created from sources such as forest residuals, waste wood (scrap wood), crops …

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Low Boy

A Low Boy is a drop deck semi trailer typically used for transporting large vehicles that would otherwise be too tall on a regular trailer.

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Bark Blower

Bark Blower describes equipment that can pneumatically deliver ground covering materials including bark mulch, soil, compost, wood chips, and more. Peterson sells both Blower Trucks and Blower Trailers depending on your specific needs.

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Whole Tree Chipper

A Whole Tree Chipper can process an entire tree including limbs and brushy tops. Peterson has several chippers that can process whole trees. Peterson's 5000H Whole Tree Chipper is a specialty Chip Plant with a combination of a Chain Flail and a …

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Rotating Grapple

Peterson grinders are extremely productive and are often limited by the loading capacity. A rotating grapple can be much more productive loading a grinder or chipper compared to a fixed grapple which will speed up the overall production. A Rotating Grapple …

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High Tip Bucket

A High Tip Bucket is an attachment that is used on a wheel loader which allows for increased dump height i.e. for loading high sided vehicles. High Tip Buckets are ideal for loading Peterson horizontal grinders or blower trucks or …

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Spearing

An undesirable, odd sized material that pass through the grates with minimal size reduction. Peterson machines are less likely to have spearing occurrences due to the up-turn rotor and three-stage grinding process.

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Mill

A mill is a machine that grinds (or cuts) material for reduction purposes. Milling material is the act of grinding it up. In reference to horizontal grinders, a mill can refer to the machinery within the grinding chamber that grinds (mills) material.

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Hog Mill

The term hog mill is a traditional term for a grinder, referencing a 1900's machine by the same name and similar function. Hammer Hog is a reference to a hog mill that uses hammers to grind material.

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Hammermill

A hammermill is a general term referencing grinders as a mill that hammers material into small pieces. The word hammermill can be used in reference to the whole machine, or alternately, just the rotor and hammers.

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In-Field Chipping

In-Field Chipping is the process of debarking and converting the feedstock to chips while on the logging site. This can lower transportation costs by eliminating the need to haul out whole trees from the job site as well as shorten the …

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Hardfaced

Hardfaced refers to an abrasion resistant weld wire which is applied (welded) onto machine parts. The hard face reinforces the metal part and prevents premature wear when grinding in a highly abrasive environment.

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Land Clearing

Land clearing generally consists of trees, limbs and roots cleared from forested or partially forested land that will be used for a new purpose including farming, commercial development, or right-of-ways. Most land clearing is near urban areas. On larger areas …

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Feedstock

Feedstock is the raw material supplied to the grinder. Grinder feedstocks can vary widely from organic to non-organic materials. Common feedstocks are: Waste Wood Green Waste Asphalt Shingles Whole Trees Railroad Ties  

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Regrind

In most cases, a two-pass grinding process is more economical than a one-pass grinding process. When finished product sizing is critical for things like mulch and compost a two-pass regrind is optimal. Pregrinding material on the first pass for feedstock …

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Grouser Track Shoes

All Peterson tracked machines come standard with triple grouser track shoes. Track shoes are what gives a machine the traction in mud, snow, and other soil conditions to move easily. Shoe styles range from rubber for indoor and pavement, to heavy duty …

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Metal Recovery

The ground material that is produced by Peterson horizontal grinders can offer more value if it is free of metal debris such as nails, bolts, and other ferrous hardware. Metal Recovery is pulling scrap metal from the debris stream with an …

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3-Stage Grinding Process

Peterson's grinders utilize a 3-stage grinding process for more accurate and consistent finished products. The up-turning rotor draws material into the grinding chamber, providing the first stage in material size reduction. The anvil is positioned for optimum sizing and production, …

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Asphalt Shingle Grinding (ASG)

Asphalt Shingle Grinding (ASG) is the process of producing Recycled Asphalt Shingles (RAS) by processing asphalt roofing shingles to a small spec, generally under 3/8” (9.525 mm) to salvage the valuable asphalt and sand. Grinding asphalt shingles is a recycling …

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Cleated Belt

A cleated belt is a conveyor belt with transverse raised sections to stabilize material carried up the discharge belt.

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Tramp Metal

Tramp metal is unwanted metal material in the feedstock. This could include nails, wire, staples, and hardware. Tramp metal can cause excessive wear on machine parts and even serious machine damage.

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Contaminated Material

Contaminated material is unwanted content in the feedstock material. Using feedstock with contaminates means a lower quality finished product containing contaminated materials. This unwanted content may including rocks, dirt, tramp metal, and plastic. All of these materials can cause problems …

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Chipper Head

Some manufacturers have a special rotor or kit called a Chipper Head where conventional hammer bits are replaced by knives that will produce more of a “cut” product.

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Contaminated Material

Contaminated material is unwanted content in the material. Using feedstock with contaminants means a lower quality finished product containing contaminated materials. This unwanted content may including rocks, dirt, tramp metal, and plastic. All of these materials can cause problems for …

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Feedstock

Feedstock is the raw material supplied to the chipper.

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Tramp Metal

Tramp metal is unwanted metal material in the feedstock. This could include nails, wire, staples, and hardware. Tramp metal can cause excessive wear on machine parts and even serious machine damage.

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Babbitt

Babbitting is the process of bonding a molten, soft alloy metal (Babbitt metal) to a stronger metal. In the case of Babbitted chipper knives, Babbitt metal is added to the back end of a knife so that when it is installed it …

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Chips

Chips are the result of putting a tree through a cutting machine. Chips are larger, and courser than saw dust and typically have an intended outcome such as biomass, pellets, playground chips or paper pulp.

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Cribbing

Cribbing is the construction of beams of wood (cribs), stacked evenly to form a four-sided column that solidly supports and stabilizes the machine for either better performance due to uneven terrain or maintenance. Each row of cribs is typically laid 90 …

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Chip Plant

A Chip Plant includes all the machine components related directly to debarking, delimbing, and chipping feedstock to create a desired value product. This includes the feed system, flail units, bark pushers, chipper, and chip spout. Some chip plants have the flail and …

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End Load

To End Load is the process of blowing chips through the chip spout, into a closed top chip van from the rear of the chip van. Top loading uses a similar process to blow chips into an open top chip van.

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Debarking

Debarking is the mechanical removal of bark and small limbs from multiple logs at one time. Methods include rotating drums, chain flails, ring debarkers with adjustable tool steel arms, and high speed rotating heads. Drums and flails are the only …

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