Bison 3-Jaw (2Pc) 20

Bison 3-Jaw (2Pc) 20" A2-11 Extra Heavy Duty Scroll Chuck with 7.480" Hole


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Item # Description Price Quantity
7-825-2011 3-Jaw Self-Centering Extra Heavy Duty Chucks A2-11 $9,980.00

3-Jaw (2Pc) Scroll Chuck Forged Steel, Extra Heavy Duty, 20in, A2-11 7.480in Hole

BISON-BIAL 3-Jaw Self-Centering Extra Heavy Duty Chucks

Forged Steel Body Large Thru-Hole


Standard Accessories:

  • 1 Set of two-piece heavy duty reversible jaws
    (hard top jaws and hard master Jaws)
  • 1 Wrench
  • 1 Set of Mounting Bolts

Optional Accessories:

  • Soft top jaws
  • Hard top jaws
  • Chuck wrench with flat T-bar end
  • Chuck wrench for fast jaw movement

Chuck Diameter in (mm) 20 (508.0)
Mount   A2-11 Direct
Maximum Speed RPM 1000
Weight lb (kg) 560 (254.5455)
Hole Diameter d in (mm) 7.48 (190.0)
M Thread   M20 x 2.5
Gripping Force, Wrench Torque Nm 450
Gripping Force, Jaw lb 20700
Max Load Capacity per Chuck lb 5200
Max Weight of Workpiece lb 10400

Clamping Capacity, Min d1 in 1.77
Clamping Capacity, Max d2 in 19.68 

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