Hi Inertia Solid Steel Rotor

Super Hi Inertia Rotors

Meet the highest crushing impact rotor in the industry……… period.

Rawlings Wood Hog Rotor

The Rawlings rotor is designed to maximize inertia while minimizing its weight.  With the increase of inertia our machine runs at lower RPM’S than our competitors machines and half the speed of conventional hammer mills resulting in overall savings of electricity and maintenance costs.   The cam profile of the Rawlings rotor  prevent feed surges by keeping material closer to the cutting edge of the bits. This translates to better productivity as the in-feed conveyor is stalled less frequently and  less down time as the increased energy reduces the number of motor drive stalls.

The Rawlings Super Hi-Inertia Hog provides the crushing and shearing power needed to handle really tough jobs like green waste, cypress, redwood, cedar, black spruce, poplar and a wide range of other stringy and fibrous materials.

Extremely tolerant of Contaminants, Rocks, Metal without catastrophic maintenance costs if metal enters the grinding chamber.

Hammer hogs run at higher RPMs than that of a solid rotary hog.  In general hammer hogs contain a plurality of pivoted hammers on the outer rotor dimension. The hammers pulverize the material against an anvil. The rotor is light and the hammers are heavy. The rotor tends to be difficult to start because the pivoted hammers hang towards the bottom of the machine. Bearing wear is high and maintenance is excessive.  The hammer hog is also unsuitable to handle contaminants without extensive catastrophic damage once they enter the grinding chamber.

“Customer Testimonial on Rotor Retrofit of a Universe Hog”

I wanted to share with you a few comments about our recent Rotor Retro-fit to the Rawlings Hi-Inertia Rotor completed in January of this year. Before the change we were having to turn the strikers or resurface every two weeks and completely change out every six weeks. It is now 17 weeks using Rocwear strikers and bits and we have yet to change any parts. That is operating over 85 hours a week or 1445 hours. Friday is maintenance day and it seemed like we were spending 8 hours on maintenance. Now, its open it up, inspect, and close it back up. In a test done just before the change, we processed a log about 10″ diameter x 8′ long. It took about 17 seconds to process a mix including unusable sticks up to 20 x 2 ½. After the conversion we processed the same size log through which cleared in 10 seconds with a consistent quality 3 inch minus we’ve maintained everyday since.In the final analysis we successfully:

  • Reduced maintenance costs (parts & labor) over 80%
  • Satisfied our customers with a consistent 3 minus hog fuel.
  • Eliminated conveying problems.
  • Reduced or eliminated unnecessary shutdowns.
“Thank you for your assistance in helping the conversion run smoothly. We are very pleased with your product.”   Millar Western Boyle Alberta
 ROTOR RETROFIT FLYER

Rawlings Manufacturing Inc.
PO Box 4485
Missoula, Mt 59806
Call 406-728-6182
Call Toll Free 1-866-762-9327 (RocWear)
Fax 406-728-7957

 

Biomass Power

Biomass Co-generation

 

Eversource Biomass Plant

 

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Rawlings wood grinders are currently operating at several of the largest biomass power plants in the United States. Since 1976, we have focused on manufacturing grinding equipment that turns low grade materials like wood waste into valuable fiber commodities like wood fuels. The United States is currently the largest producer of electricity from biomass having more than half of the world’s installed capacity. Biomass represents 1.5% of the total electricity supply compared to 0.1% for wind and solar combined. More than 7800 MW of power is produced in biomass power plants installed at more than 350 locations in the U.S., which represent about 1% of the total electricity generation capacity. According to the International Energy Agency, approximately 11% of the energy is derived from biomass throughout the world.

Fossil fuel and nuclear energy are not going anywhere any time soon; however, with growing support in the United States and favorable statewide green-energy legislation, the future for biomass is bright. When efficiently collected and processed, biomass is affordable and reliable.

As proven leader in size reduction technology, Rawlings builds custom wood recovery systems meet your specific processing needs and budget. Each system can be designed with work platform decks, choice of belt, chain,vibrating in-feed and out-feed conveyors. Metal or magnet protection, product screening and separation, all customizable for your specific operation. Stationary, Portable and skid mount models available.

• Biomass Recovery
• Alternative Fuels
• Biomass and Co-Generation
• Sawmills
• Pulp ,Paper, and Pellet Plants
• Compost and Mulch Operations
• Recycling Facilities
• Waste To Energy Plants

 

Sawmills Paper And Pellet Mills

Verical Wood Hogs

Rawlings offers a complete line up of wood waste processing equipment for sawmill , paper, pulp, pellet and biomass industries to convert and utilize wood residuals into valuable wood fiber products. Rawlings Super Hi-Inertia waste wood grinders provide the crushing and shearing power needed to handle really tough jobs, like green waste, cypress, redwood, cedar, poplar and a wide range of other stringy and fibrous materials.

Rawlings has custom wood recovery solutions for processing and sizing different biomass and forest materials. The scope of supply can vary from complete systems to individual equipment delivery. Rawlings Equipment is designed for continuous operation. Special attention has been paid to maintenance intervals and ease of maintenance access to minimize overall maintenance costs. With over 40 years of experience in the sawmill and forest related industries  we have the knowledge to assist our customers in selecting the right equipment to meet their specifications.

We invite you to inquire about any of the projects that we have completed, we can provide you with full details.

Our Wood Grinders process the following wood residuals

Bark & Wood Waste
Biomass Feed stock
C&D Debris
Chip Overs
Food & Green Waste
Lily Pads
Log Ends & Log Yard Debris
Pre-shredded Wood
RDF
Sawdust & Shavings
Trim Ends
Urban Wood

 

Compost And Mulch Facilities

Horizontal Electric Wood Waste System

Utilizing a Rawlings 460 Electric Stationary Wood Grinder and the state of the art in-vessel composting tunnels, Whistler Composting helps move the Whistler community towards its goal of zero waste.  Rawlings designed this complete wood waste processing system complete with a belt in feed and out feed conveyor, metal detector , Rawlings HZX Horizontal grinder, overhead self cleaning magnet and electrical control panel.

The in-vessel system processes complex feed stock, while addressing concerns of odor generation and leachate. The system relies on fully enclosed flow through tunnels to transform organic wastes into a fine soil-like material over a 14-day period. By controlling oxygen, moisture and temperature, the in-vessel system provides control over the decomposition of organic matter that exceeds all standards set for composting facilities in North America, the United Kingdom and Europe. Compact, fully enclosed and modular in design, the system is not affected by the weather.

Rawlings Wood Hogs offers a complete line of wood waste processing equipment for helping mills in the sawmill and plywood industries convert their wood residuals into valuable wood fiber products. Available in a full range of sizes and models. Stationary, portable, diesel and electric powered units and by adding a wide variety of available options, and you’ve got the flexibility to customize the perfect wood recovery system .

Our Wood Grinders process the following wood residuals

Bark
Biomass Feed stock
C&D Debris
Chip Overs
Food & Green Waste
Lily Pads
Log Ends & Log Yard Debris
Pre-shredded Wood
RDF
Sawdust & Shavings
Trim Ends
Urban Wood

 

 

Wood Waste Recycling

Urban Wood Waste

Rawlings  is a leading manufacturer of custom wood waste recovery systems utilizing Urban Waste that normally ends up in a landfill into renewable energy. Utilizing the ground up wood (Hog Fuel) for biomass co-generation projects, sawmills, pulp, paper, pellet, cement plants, wood waste recycling and compost facilities.

Rawlings Wood Hogs offers a complete line of wood waste processing equipment for assisting  wood waste recycling facilities, landfills , compost and mulch operations convert their wood residuals into valuable wood fiber products. With over 40 of experience we have the knowledge to assist our customers in selecting the right equipment to meet their specifications.

We invite you to inquire about any of the projects that we have completed, we can provide you with full details.

Our Wood Grinders process the following wood residuals

Bark
Biomass Feed stock
C&D Debris
Chip Overs
Food & Green Waste
Lily Pads
Log Ends & Log Yard Debris
Pre-shredded Wood
RDF
Sawdust & Shavings
Trim Ends
Urban Wood

 

Forestry Slash

Logs

 

 

Each year an estimated 16 million green tons or more of wood is removed from urban lands as a result of pests, wind storms, construction, hazard trees and other factors. That amount is comparable to the total annual harvests from national forests each year. Much of this wood ends up in landfills, wasting potential resources or it is burned in slash piles

With 40 years of experience in the sawmill and forest related industries Rawlings Wood Hogs have proven to be a top contender in size reduction equipment. We offer a complete line up of Vertical & Horizontal grinders in a full range of sizes, stationary, portable, diesel or electric powered. Add a wide variety of available options, and you’ve got the flexibility to customize the perfect wood recovery system for your particular needs and budget.

Rawlings has also worked with several logging companies on studies to eliminate additional costs by removing the slash piles versus burning the left overs and turning it into a valuable product.

Our Wood Grinders process the following wood residuals

Bark
Biomass Feed stock
C&D Debris
Chip Overs
Food & Green Waste
Lily Pads
Log Ends & Log Yard Debris
Pre-shredded Wood
RDF
Sawdust & Shavings
Trim Ends
Urban Wood

Coal Conversion to Biomass Fuel

Replacing Coal with Biomass

Rawlings Wood Recovery System Burning Biomass to heat Cement kilns.jpg

 

 

Rawlings has completed one of the first wood waste recovery systems to introduce biomass as fuel to heat cement kilns at Mitsubishi Cement in Lucerne Valley California.

The system is capable of processing and storing up to 350 Tons of premium biomass fuel wood waste to be burned along with coal to reduce the amount of greenhouse emissions. The biomass will replace part of the annual tons of coal the plant would otherwise have used.

The Rawlings Electric portable wood hog is a rugged, high performance hog that can reduce various types and sizes of contaminated wood waste to biomass fuel. Once the wood waste has been processed through the hog, the metal is removed by an overhead self cleaning magnet and then conveyed to a walking floor stoker storage system.

To ensure the optimal size end product the wood waste is then processed over two vibrating finger screens and then transferred to the kilns via a blower system. Rawlings designed, manufactured, and installed this system and has an ongoing consultant relationship with plant management and personnel.

Rawlings Waste Wood grinding systems come in all shapes and sizes, from simple stand-alone vertical hogs for saw and paper mills, to complete multi-dimensional custom horizontal hog systems for processing facilities that incorporate various combinations of primary shredders, screens, conveyors, magnetic separators, and secondary grinders to assure specific product size.

We invite you to inquire about any of the projects that we have completed, and can provide you with full details and a complete customer contact list.