WSM Vertical Feed Grinders

WSM Vertical Feed Grinders

Materials Processed

  • Bark
  • Biomass Feedstock
  • C&D Debris
  • Chip Overs
  • Food & Green Waste
  • Lily Pads
  • Log Ends & Log Yard Debris
  • Pre-shredded Wood
  • RDF
  • Sawdust & Shavings
  • Trim Ends
  • Urban Wood
WSM Vertical Feed Grinders

WSM Vertical Feed Grinders

Materials Processed

  • Bark
  • Biomass Feedstock
  • C&D Debris
  • Chip Overs
  • Food & Green Waste
  • Lily Pads
  • Log Ends & Log Yard Debris
  • Pre-shredded Wood
  • RDF
  • Sawdust & Shavings
  • Trim Ends
  • Urban Wood

Tough & Reliable

WSM Vertical Feed Grinder
Tough & reliable mill duty grinders deliver premium quality, marketable fiber.
Tough & reliable mill duty vertical grinders

From 1 to 150 tons/hour – what fits your operation?

Whatever your output requirements, WSM has the heavy duty Vertical Grinder to get the job done.

From fine grinding of wood chips for pellet fuel or chipboard, to coarse grinding of bark or wood waste for mulch or biomass feedstock, WSM vertical grinders have the flexibility to provide the best solution for your application.


Smart design features make your operation run smoothly

Smart design features make your operation run smoothly

Years of field experience have gone into the features that make your operation easier to run – and your WSM grinder easier to maintain.

1. Easy access. Optional hydraulically-opening pivot housing allows easy access to routine wear parts. All infeed components remain in place when opening grinder housing.

2. Interchangeable tooling allows us to select the best hammer style and configuration for your application. Options include replaceable/rebuildable tip hammers and our patented chipping head (US patent no. 5,819,825).

3. Four-way reversible alloy steel, heat treated anvil, and modular components give you longer life between replacement.
WSM Vertical Feed Grinder


Longer wear life, minimized maintenance expense

Longer wear life, minimized maintenance expense

WSM offers various rotor configurations, screen sizes and types, hammer styles, and discharge options to configure your grinder. Let us know what you’re grinding, and your desired finished product; we’ll work together to configure your grinder to your specifications for maximum productivity.

Get Application Answers

West Salem Grinders

““West Salem Grinders are the best machines in my entire plant.””

Jimmy Sisson
Waterway Recycling

Hover over circles to see features of the Vertical Grinder.

WSM Vertical Feed Grinders
  DIMENSIONS IN INCHES
MODEL FEED OPENING L W H ROTOR DIA TIP-TIP ROTOR W TYPICAL HP RNG
2420B 21 1/4 21 1/4 48 5/8 49 1/2 40 24 20 50-75
2432B 32 1/2 21 1/4 62 5/8 49 1/2 40 24 32 75-150
2822B 23 1/2 24 1/4 55 13/16 53 7/8 44 28 22 75-150
2838B 38 1/2 24 1/4 70 13/16 53 5/8 44 28 38 100-200
3232B 32 1/2 27 1/2 69 3/4 63 1/2 56 32 32 100-200
3240B 39 3/4 27 1/2 78 3/4 63 1/2 56 32 40 150-250
4032B 32 1/2 35 80 1/2 81 65 40 32 200-300
4040B 43 1/2 35 90 1/16 81 65 40 40 250-300
4048B 52 35 99 3/8 81 65 40 48 300-400
4064B 62 1/2 35 116 1/4 81 65 1/2 40 64 350-500
4848B 51 3/4 42 1/2 105 3/8 87 73 48 48 500-600
4864B 68 3/4 42 1/2 119 7/8 87 73 48 64 600-900
5472B 71 3/4 48 3/4 125 9/16 97 1/16 96 1/16 54 72 600-1200

Optional Feeders and Conveyors

Only WSM infeed and outfeed machines integrate perfectly with your grinder to provide seamless workflow. These optional add-ons can be combined to form the ultimate system.


Crafted by experts

Crafted by experts

WSM’s expert work force builds every WSM machine one at a time. Though automation has its place, nothing replaces the care and expertise of hands-on crafting. The result is a machine – or a system of WSM machines – performing as promised year after year.

See more about WSM manufacturing


Ask the Experts

Find out if WSM Vertical Feed Grinders are right for your application now.

Get Application Answers


1-800-722-3530

Request WSM Brochure

Request WSM Brochure