AK 640 High-Speed Grinder
Maximize Volume, Revenue and Profit.
Meet the new yard boss: the AK 640 high-speed grinder. Built with the same collection of innovative features as all Doppstadt® AK series high-speed grinders, the AK 640 grinder is a high-volume machine designed to produce hundreds of yards of finished material every day. The up-swing hammermill engineering converts more of your source stream into a very consistent, high-quality product, maximizing your revenue and profit.
Organics, shingles, wood waste, C&D — you can grow your business on the back of the AK 640.
Product Features
Hinged Radiator
The hinged radiator is easily accessible and includes an automatic reversing fan.
Feed Roll
A reversible feed roll ensures material is consistently and evenly fed to the grinding chamber.
Upswing Rotor
The large 2.5-ton rotor with easily replaceable tips grinds the material. Extra contaminant protection is provided by the free-swinging design.
One-Piece Sizing Screen
Mesh screens from 1″ – 16″ can be easily replaced in 10 minutes or less, allowing for quick product sizing changes.
Rear Conveyor
Material is discharged via rear conveyor. Add an optional magnetic pulley or overband magnet to remove ferrous metals.
Large Access Doors
Large maintenance doors provide easy access to all critical components and functions of the machine.
Scraper Floor
The patented, load-sensing scraper floor ensures material is evenly and consistently delivered to the feed roll.
Remote Control
All machine functions can be controlled by a wheel-loader operator using the optional 16-channel remote control.
Ak 640 Demonstration
Interested in the Doppstadt AK 640 High-Speed Grinder? Contact us to arrange an on-site demonstration at your facility, running your material, to see just how good it is!
Case Studies
Kurtz Bros. Bring Consistency, Increase Volume With Backers Star Screen.
Kurtz Bros., Inc. has been a stalwart in Ohio for decades. Founded in 1948, they are best known for their mulch, topsoil and compost production, although they also offer various…
Read MoreProduction Up, Costs Down in Richland, Washington
The waste never stops at the Horn Rapids Landfill in Richland, Washington. Tracy Reed, the lead operator for the City of Richland, found that his processing equipment was stopping, however.…
Read More380 McKinney Landfill Boosts Their Volume With the INVENTHOR 9
David Dugger had a problem. As the General Manager of the new 380 McKinney Landfill in McKinney, Texas, he was receiving anywhere from 700 – 1,000 tons of bulky construction…
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