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
Royal Oak Farm Doubles Down on Backhus, Doppstadt
Ken Newman began his journey as co-founder of Royal Oak Farm in England, his birthplace, and where he obtained a horticulture degree from City and Guilds of London Institute. After…
Read MoreSustainability in Colorado with A1 Organics & Ecoverse
The words “divert” and “sustainable” explain A1 Organics’ business in the simplest of terms: they divert organic waste from landfills to create compost, soil blends and mulch, resulting in a…
Read MoreReduction and Reliability with Doppstadt in Payson, UT
As supervisor of the Payson City Municipal Landfill, Jed Lowe knows a thing or two about managing a landfill. With 20 years of experience at the landfill in Payson, Utah,…
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