Primary Reducer handles nearly any mixed waste material.

Press Release Summary:

Measuring 9 ft long, single-shaft PRI-MAX(TM) PR-590SD is suited for on-site processing of waste material from 5-20 tons/hr. It features variable speed drive, bi-directional shaft rotation, open-grate cutting table, and shockload protection, which guards against overfeeding and damage by non-shreddables. Model PR-590SD is suited for items such as railroad ties, dimensional lumber, and paper cores. Large process area minimizes bridging of large, flat objects like plywood.

Original Press Release:

SSI PRI-MAX Line Gets New Addition

SSI Shredding Systems, Inc. of Wilsonville, Oregon has recently introduced a new addition to its PRI-MAX(tm) line of Primary Reducers. The new PR-590SD, unveiled at Waste Expo in Dallas, is a 9' long version of SSI's popular PR-560SD single-shaft primary reducer. The new, longer length allows more efficient feeding of items such as railroad ties, dimensional lumber, and paper cores. Its larger process area also reduces bridging of large, flat objects like plywood. The PR-590SD is a small, cost-effective unit ideal for on-site processing of nearly any mixed waste material--from 5 to 20 tons per hour.

The only true "multi-material primary reducer", SSI's PRI-MAX line is suitable for densifying construction and demolition debris, furniture, appliances, carpet, mattresses, bulky scrap metal, yard debris, stumps and wood waste with metal contamination.

SSI PRI-MAX primary reducers feature:
-Preferred, low-speed technology--high reliability, low noise, low dust, low maintenance
-Single and dual shaft configurations
-Stationary, skid-mounted, mobile or track-mounted
-Variable speed drive
-Independent, bi-directional shaft rotation
-Heavy duty, open-grate cutting table with bi-directional cutting action
-Superior shockload protection guards against overfeeding and damage by non-shreddables

And with processing rates from 1-150 tons per hour, SSI's PRI-MAX product line represents the most comprehensive range of multi-material reducers in the world.

Information on the PR-590SD and other PRI-MAX products can be found at or you can contact SSI directly at:
SSI Shredding Systems, Inc.
9760 SW Freeman Drive
Wilsonville, OR 97070 USA
Tel: 503-682-3633 Fax: 503-682-1704
Toll-free: 1-800-537-4733

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