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CRANK type Extra Long Stroke Thru-Hole 3-Jaw Power Chuck
Thru-Hole | Three JAW CHUCK
Our 3 jaw lathe chuck is widely used for Lathes and milling machines, it is best for holding and rotating the workpiece during machining operations such as turning, thread cutting, facing, boring, drilling, grinding, and parting.

  • Crankshaft three jaw lathe chuck with the large through-hole, and extra-long jaw stroke.
  • 3 jaw power chuck has the same self-centering chuck, its jaws are interconnected via a scroll gear and can move at the same time.
  • Matching surfaces of all parts hardened, ground, and lubricated directly.
  • High rigidity and high repeatability precision.
  • three jaw chuck is the best option for holding circular or hexagonal cross-sections
  • 3 jaw lathe chuck with an accuracy level of around 0.010
  • J is the hole diameter of the blank draw nut, K is the maximum thread specification, and it could be customized.
Model-Plunger
stroke
(mm)
Jaw stroke
(Dia.)
(mm)
Chucking
Dia. Max.
(mm)
Chucking
Dia. Min.
(mm)
Max. D.B.
pull kN
(kgf)
Max.
clamping
force kN
(kgf)
Max. speed
min-1 (r.p.m.)
I
kg‧m 2
Weight
(kg)
Weight
(kg)
Matching cyl.Max. pressure
MPa (kgf/cm2)
3L-205 A4 12 18 138 6 15.6
(1590)
17.2
(1750)
4200 0.019 7.2 8.0 TK-A533 2.3(23)
3L-206 A5 15 24 170 24 23.5
(2400)
26
(2650)
3600 0.063 14.7 15.9 TK-C646 2.7(27)
3L-208 A5 20 32 215 30 34.3
(3500)
35.0
(3570)
3000 0.18 23 25.7 TK-A853 2.8(28)
3L-208 A6 20 32 215 30 34.3
(3500)
35
(3570)
3000 0.18 23 24.6 TK-A853 2.8(28)
3L-210 A6 25 37.5 260 53 47.7
(4870)
48.0
(4895)
2400 0.35 39.5 46.5 TK-A1075 3.1(31)
3L-210 A8 25 37.5 260 53 47.7
(4870)
48.0
(4895)
2400 0.35 39.5 45 TK-A1075 3.1(31)
3L-212 A8 30 45 315 61 64.7
(6600)
61
(6220)
2100 0.827 67.3 70.5 TK-A1291 3.0(30)
3L-215 A8 35 52 405 52 84.3
(8600)
85.0
(8665)
1600 2.58 139 152 TK-A1512 2.7(27)
3L-215 A11 35 52 405 52 84.3
(8600)
85.0
(8665)
1600 2.58 139 145 TK-A1512 2.7(27)

* The dimensions and the specifications of 3L-A are in the red data.

* Subject to technical changes.

Model-ABBCDD1D2EE1FG max.G max.G min.G min.HJK max.LL1L1MNPQ max.Q min.R max.R min.STU
3L-205A4138657611082.663.519641532115-1132012M40x1.53~M10151531621415.755.2538.529.525103~M6
3L-206A51708497140104.882.56116518456.524.5-8.59.51920M55x23~M10181537732015.257.75513931123~M6
3L-208A521596114170133.482.56104.852352730-13102030M60x23~M12181938952519.2510.2563.547.535146~M10
3L-208A621596114170133.4106.3815052352730-13102030M60x23~M12182038952519.2510.2563.547.535143~M6
3L-210A6260108128220171.4106.38133.4525758.533-16.582545
M85x2 / M60x2
3~M162420431103024.7511.258061.2540163~M12
3L-210A8260108121220171.4139.72190518758.526.5-16.51.52545M85x23~M162421431103024.7511.258061.2540163~M8
3L-212A8315125138220171.4139.72190518911533-1533050M100x23~M162421511303029.7513.2596.57450213~M8
3L-215A8405150177300235139.72171.463312012.545.5-22.510.53960M130x26~M203327.5631654334.7513.75119936225.56~M16
3L-215A11405150166300235196.8726062212012.534.5-22.5-0.53960M130x26~M203331631654334.7513.75119936225.53~M10

* The dimensions and the specifications of 3L-A are in the red data.

Model 2D pdf 2D dwg 3D step
3L-205
3L-205A4
3L-206
3L-206A5
3L-208
3L-208A5
3L-208A6
3L-210
3L-210A6
3L-210A8
3L-212
3L-212A8
3L-215
3L-215A8
3L-215A11
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