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Chipping vs. Grinding Applications Larry Burkholder
Morbark, Inc.
About Morbark
Morbark’s first patent – Pulp Wood Debarker
Morbark Today
Established 1957 in Winn, MI More than 500 employees Over 35 acres under roof Domestic & International Sales and
Support – 266 Dealer Locations
Business Scope
Three Product Segments Industrial Forestry/Biomass/Pulp & Paper Recycling
Tree Care Brush Chippers, Stump Grinders, Boxer
Equipment (mini-skid steers & attachments)
Sawmill Debarkers, Chip-Pacs, Live Decks and Material
Handling
Disc – Drum - Hammermill
Drum
Horizontal Hog Hammermill
Grate
6 Knives Disc
Knife/Holder Drum Assembly
Bolts
Knife Clamp
Knife
Counter Knife
Knife Holder
Shim
Knife/Holder Disc Assembly
Inserts - Grates
Alpha™ Insert
Wearwolf™ Insert
Grates
Industrial - Disc Chippers
(3) Industrial Model Available * All models make a similar end product Model 22RXL Chiparvestor
Up to 1050 HP and 22” Capacity
Model 23 Chiparvestor Up to 1050 HP and 23”
Capacity Model 30RXL Chiparvestor
Up to 1200 HP and 30” Capacity
M20R Forestry
Model 23 Total Chiparvestor
Industrial Tub Grinders
Tub Grinders 5 Models – 950,
1000, 1200XL, 1300B, 1600
HP Range 250-1200HP
Mill Dimensions – 43D x 69L
Screen area 5,735 sq. in.
Production output up to 800 cubic yards per hour
1600 Tub Grinder
Industrial Forestry Equipment
Whole Tree Chipper Drum Disc
Flail Stand Alone Chiparvestor™
Combination
5048 NCL Track Whole Tree Drum Chipper
Forestry - Drum Chippers
(4) Industrial Model Available *All models make a similar end product Model 50/48B
Up to 1050 HP and up to 25+ loads per day Model 40/36
Up to 800 HP and up to 20 loads per day Model 30/36
Up to 600 HP and up to 12 loads per day Model 20R Forestry
Up to 400 HP and up to 5 loads per day
Industrial – Wood Hogs
Horizontal Grinders 7 Models – 2600,
3200, 3800, 3800XL, 4600XL, 6600, 7600B
HP Range – 250 – 1200 HP
6600 Track Wood Hog
Industrial – Gaston Tree Debris Recycling
Why a Drum Chipper?
Short distance between the feed wheel and drum
Large infeed/throat openings No separator – dirty chip
Drum Chipper Chip Sizes
Chip size ranges from ¼” – 1”
Micro-chip package Additional knives Accelerator Forestry grate
% Less Than In-Woods HW Pine Pulpwood
2” 100 100 1” 99.9 100 0.5” 95.2 97.4 0.375” 87.9 90.8 0.25” 59.5 65.5 4mm 26.8 30.4 2.8mm 13.7 16.2
Flail/Disc Chip Sizes
Produces Pulp Quality Chip >1% Bark Content 85-95% “Accepts”
Industrial Recycling Yards
Equipment Tub Grinders Horizontal
Grinders Slow-Speed
Shredder 3800 Electric Horizontal Wood Hog
Forestry – Sapp’s Land & Excavating
Morbark’s Leadership Role
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