The Woods Equipment BW20.51QW Batwing Slasher is a standard-duty batwing slasher. It has a 6.3m (20’) cut and has a cutting capacity of 50mm diameter material. The splitter gearbox is 250hp and the spindle gearboxes are 150hp. The BW20.51QW has a 50mm output shaft. Wings can operate at 90° up and 22° down. Wings can be operated in a vertical position allowing for slashing over banks.

  • Extra heavy output shaft allows the operator to cut heavier material
  • PTO Assist Lift System takes the weight off the shaft for the ease of hooking up the PTO shaft by the operator.
  • Independent suspension in the wheels allows floatation for a smoother ride, less vibration on slasher and a more precise cut.
  • The 25.5 inch new foam filled 20ply tyres will prevent any tyre punctures
  • Clean line top prevents the build up of trash on the top of the slasher for easy cleaning
  • Quality inputs, Quality product: made in the USA with American steel
  • Highest OH&S rated slashers: change blades from above the machine
  • Reduce downtime: Quick Change Blade System – change blades within minutes
  • Increased durability: 38mm (1.5”) blade pin is 4x stronger than the standard 19mm (3/4”) bolt on other slashers
  • Protect gearbox: stump jumping disc standard so blades can do a 360° rotation to minimise impact
  • Superior pasture management: does not leave a windrow, efficient distribution of material
  • Unrivalled 6 year gearbox warranty


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Model Specifications

Specifications BW20.51QW
Tractor PTO Horsepower (hp) 70hp - 180hp
Gearbox Horsepower (hp) 250hp Splitter, 150hp Spindle
Category Standard
Cutting Width 6.3m (20ft)
Cutting Capacity 50mm
Cutting Height Range 50mm - 380mm
Transport Width 3.05m
'Quick Change' Blade Pins Yes
Deck Design Smooth sloped 3.5mm deck
PTO Drive Heavy wide-angle input PTO drive
Deck Drives Series 4 deck drives with 2 plate slip clutches
Wing Operating Range Floating linkage on wing lift cylinders 90° up / 22° down
Skids Full length replaceable “bolt on” formed side skids on wings
Shielding Front and rear chain shielding on wings and centre section
Wing Hinge Pin 25mm full length
Stump Jumper Yes
Blade Change Access window on top of deck for easy blade change – exclusive feature
Blade Size 12.7mm x 101.6mm
Hitch Swivel Clevis Hitch
Baffled Deck Fully Baffled Deck
Centre Spring No
Axle Arms Spring loaded axle
Tip Speed 16,300fpm blade tip speed for 1000rpm PTO
Tyres 6x 25.5 x 8-14 foam filled severe duty ag 20 ply tyres
Warranty 6 year limited gearbox warranty; 1 year deck warranty
Options Side Throw, Walking Tandem Beams, Dual Wheels on Wings

Why choose a Woods Slasher?

  • Made in USA with American steel
  • Change blades from above slasher
  • Quick Change Blades System
  • 4x stronger blade pin 38mm (1.5”) compared to 19mm (3/4”) bolt on other slashers
  • Greaseable blade pin
  • Built on complete subframe
  • Stump jumping disc
  • Does not leave a windrow
  • 6 year gearbox warranty