Industrial Equipment

WM4000 – The Next Generation in High Tech Sawing
Put the WM4000 to work for you as a primary, stand-alone headrig or integrate it into a large operation. The low cost of ownership, lower maintenance, and higher productivity creates a formula for your success.
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The WM4000 includes many of the features of the WM3500 but the following upgraded features:

• Deluxe joystick controls and a 7.5” HMI touch-screen control panel
• Servo up/down drive
• Heavy duty bed
• Proportional forward/reverse and up/down control
• Built-in conveyor
• Standard Operator Cab
• 15 GPM high output proportional control hydraulic system
• MASSIVE log clamp.

Production Capabilities
• Lumber - Grade, Dimensional, Flooring, Reclaimed, Pallet
• Cants/Beams - Pallet stock, truck mats, railroad ties, timber frame, post, fencing

The WM4000 is ideal to:
• Launch a startup sawmill operation.
• Add to a circle mill operation to get the most profit out of high-grade and irregular logs.
• Add to a thin kerf operation to boost productivity with a smaller initial investment.
• Add to a WM3500 operation to more than double production capabilities.
• Replace an expanding portable sawmill operation to meet increasing production requirements.

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Power Options  

30 HP (22.4 kW) Electric 460V/60Hz 3 Phase 100Amp

length 196" (4.98m)  

1.5"-1.75" (38-44mm)

Blade Wheel  
diameter 25" (635m)  
type Belted Cast Steel (steel wheels optional)
Feed Sytem  
head speed (forward) 150ft/min (46m/min)
head speed (reverse) 300ft/min (91m/min)
Cutting Capacity


21' 6" (6.5m)
length (with board removal) 20' 3" (6.17m)
diameter 40" (1m)
max. clamp width (from stop block) 30" (762mm)
min. clamp width (from stop block) 2" (50mm)  
max width of cut (guide to guide) 34" (860mm)  
max cant width (outer guide to stop block) 31" (790mm)  
throat height  13" (330mm)  
Dimensions & Requirements
Length (bed only) 27' 6" (8.38m)  
length (with cab) 37' (11.28m)  
width (machine only) 9' 10" (3m)   
width (with cable boom) 16' - 20' (4.87m - 6.1m)
height (head only) 9'6"-10'3" (2.9m - 3.1m)
height (with cable boom) 11' 2" (3.4m)  
bed height 37 -1/2" (952.5mm)
shop air supply 110 psi @ 16.5cfm
normal power usage 36kVa, 43kWh, 66Amp
suggested wire size 50' (15.24m) max, 4AWG
dust collection port 6" (150mm)  
Hydraulic System  
hydraulic output 15 GPM (57 LPM)  
motor 15 HP (7.5kW)  

Standard Features
• PLC setworks
• Deluxe joystick sawmill controls
• 7.5" HMI screen
• Spacious operator station
• Pantograph cable configuration
• Two bidirectional chain turners
• Faster Servo up/down drive
• Faster hydraulics & proportional control system
• 40" log maximum diameter
• Heavy duty log clamp
• Laser sight
• 3 side supports
• High performance blade guides
• Hydraulic rollers
• Pressurized lubrication system
• Airstrain blade tension
• Precision ball screw head up/down with Servo
• Material dragback
• Foot pedal auto feed

The standard pantograph system keeps all cables that run from the sawmill to the operator’s station away from sawdust and debris resulting in trouble-free operation.

These standard full-functioned controls give the operator several options to open and break down a log. They also allow straight grade cutting, patterns, or multi-sized cants or ties. 

These high performance, industrial blade guides incorporate integrated blade lubrication ports, flanged heat-treated rollers with high speed bearings, and double block guides. These features all add up to high performance and low maintenance, resulting in even more efficiency from your blades.

The controls for the WM4000 are designed with the operator in mind. Ergonomic joysticks reduce repetitive motion injuries and are mounted at the end of each arm rest.. 


Log re-positioning and large cant offloading is at your fingertips with these rugged powered rollers.

A heating/air conditioning unit can be added to the cab for further climate control and comfort.

Extend blade life with a debarker unit which travels in front of the band, preventing your blade from running into dirt and debris that may cause damage.

The WM4000 comes standard with Wood-Mizer’s belted wheels. Solid steel wheels are also available as an option.

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