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