HOLT CAT® and Caterpillar® understand the unique needs of the waste industry. Our waste handling machines perform in virtually any system, whether you are loading at a transfer station or recycling center, working the face of a landfill, handling cover at landfills or maintaining sites. Caterpillar understands the unique needs of these operations and how Cat® machines can contribute to the bottom line. You can use this site to preview our complete product line for the waste handling industry.
No company in the world makes a more complete or purpose-built line of equipment for the solid waste industry than Caterpillar.
HOLT CAT supports the waste handling products by specializing in fast, accurate and reliable product support. We offer services to make sure you're up and running when you need to be. Whether buying or leasing, HOLT CAT is committed to supporting you with the best equipment and the most cost effective solutions.
Compost Screeners from Screen Machine Industries
612T Trommel - Portable Compost Screen

The 612T Trommel is a self-contained, diesel powered, track mounted portable screening plant designed to separate topsoil, compost and green waste type products. It features wireless remote controls and a direct open feed hopper with a large 6’ x 12’ (1.8m x 3.6m) trommel drum creating 160 square feet of screening area. The pile height generated by the side discharge conveyor combined with the tracked undercarriage creates tremendous windrow stockpiling capabilities.
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612W Trommel Portable Compost Screen
The 612W Trommel is a self-contained, diesel-powered, portable screening plant designed to separate topsoil, compost and green waste type products. It features a direct open feed hopper with a large 6’ x 12’ (1.8m x 3.6m) trommel drum creating 160 square feet (48.7m Sq.) of screening area. The pile heights created by the side discharge conveyor and oversize conveyor will give the operator hours of uninterrupted processing time. It is the landscaper’s ultimate high capacity processing plant.
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The Might II Hammer Mill Shredder / Trommel Screen
The Might II Hammer Mill Shredder / Trommel Screen is a towable screening plant ideally matched for skid steers to process topsoil, mulch, compost and more. The Might II is well-equipped with a diesel engine, high speed hammer mill shredder to pulverize clumps of topsoil and a trommel screen to remove sticks, rocks, etc. Now you can process your own landscaping materials with very minimal expense.
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Scalper 107T Screening Plant
The Scalper 107T® is a patented, heavy-duty, track-mounted screening plant designed to screen rock, soils, sand, gravel, coal, concrete and more. It works best when paired with your 3 to 5 yard (2.5m - 4m) front end loader. A unique wide feed opening over dual 7'-0" (2.1m) shaker screens, Cummins® diesel engine, heavy-duty tracked undercarriage and wireless remote control movement & operation are standard with the Scalper 107T.
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Scalper 107D Screening Plant
The Scalper 107D is a patented, heavy-duty screening plant that is perfect for two product separation. Ideal applications include soils screening, removing vegetation, rocks and even scrap metal. This tough machine is built with Grade 80 steel plate and a heavy-duty reinforced tubular structure. The hydraulic landing gear and hydraulic axle raise and lower make the Scalper 107D "screening ready" in minutes. The Screen Machine® Scalper 107D is a unique dual screen processing plant featuring 10' x 7' (3m x 2.1m) double deck screens with a protective center support that matches up to your 3 to 5 yard (2.5m - 4m) front end loader.
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Scalper 77C Screening Plant
The Scalper 77C is a patented, heavy-duty screening plant capable of screening soils, aggregates and more. It works best when paired with your 2 (1.8m) yard front end loader. A large feed opening directing material on the 7’-0” long shaker screen is standard equipment in this easy-to-use and easy-to-own Scalper 77C.
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Scalper 55D Screening Plant
The Scalper 55D is an affordable portable screening plant designed to be loaded by a skid steer loader. It is used to separate topsoil and rocks, sand and gravel, and many other materials found at a contractors site. The self-contained Scalper 55D is easy to transport, quick to set up and easy to use.
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