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Specifications

  Spindle Collet Chuck Introductions  
***New Product*** JAM-72C/JHM-65C/JAM-42C adopts JATO's latest angular-thrust bearing technology, no air leakage, no oil leakage, no risk of bearing freezing. JAM-72C is compressed air actuated with 70mm max. capacity. The JHM-65C is hydraulic actuated with 65mm max. capacity. JAM-42C is compressed air actuated with 42mm max. capacity
JATO JAM/JHM Series Spindle Collet Chuck is specially designed to provide users with the best solution to design and build their special purpose machines.
A traditional power workholding system consists of a rotary spindle, a power chuck, and a rotary cylinder. JAM/JHM Spindle Collet Chuck combines these three elements in one,making machine builders very easy to design and build special purpose machines with workpart auto-loading and cnc controlled machining. Since we also longer the chucking length of the collet, JAM/JHM Spindle Collet Chuck is mostly used to chuck double-ended work parts like hubs of bicycle wheels or piston rods of automobiles.
  • An integration of rotary spindle, power collet chuck, and air/hydro actuator.
  • Specially designed for double-ended machining: saving setup, loading, and machining time.
  • Accelerates the designing and building cycle for a new special purpose machine.
  • Compact size.
  • High clamping force. High rigidity.
 
2 Spindle Collet Chucks for
Long Parts  
  Spindle Collet Chuck Dimensions/Specifications  
 
Model
JAM-25B
JAM-42C
JAM-72C
JHM-65C
  Available Now 2012-Q2 Available Now (New) 2011-Q4
Bearing Design Angular Bearing Design Brand New Angular Thrust Bearing Design Brand New Angular Thrust Bearing Design Brand New Angular Thrust Bearing Design
A 135 (5.31") 135 (5.31") 145 (5.71") 135 (5.31")
B 232 (9.13") 232 (9.13") 265 (10.43") 232 (9.13")
C 270 (10.63") 270 (10.63") 288 (11.34") 270 (10.63")
D 210 (8.27") 210 (8.27") 236 (9.45") 210 (8.27")
E 64 (2.52") 64 (2.52") 105 (4.13") 64 (2.52")
F 238 (9.37") 238 (9.37") 256 (10.08") 238 (9.37")
G 92 (3.62") 92 (3.62") 108 (4.25") 95 (3.78")
I (Pulley Width)
 27 (1.06") 27 (1.06") 27 (1.06") 27 (1.06")
J 98 (3.86") 98 (3.86") 135 (5.31") 98 (3.86")
K 182 (7.17") 182 (7.17") 202 (7.95") 167 (6.57")
L 30 (1.18") 30 (1.18") 34 (1.34") 30 (1.18")
M 57 (2.24") 57 (2.24") 83 (3.28") 87 (3.43")
Pulley Spec. 8M*70T or 8M*72T 8M*70T or 8M*72T 8M*80T 8M*66T
Collet ER-40 (Single Collet) JR-42A (Single Collet) JR-72 (Single Collet) JR-65 (Single Collet)
Air / Hydro Air Air Air Hydro
Pressure 2-8kg/cm2
(29-114psi)		 2-8kg/cm2
(29-114psi)		 2-8kg/cm2
(29-114psi)		 10-20kg/cm2
(143-285psi)
Max. RPM 2000 2000 1800 1400
Grip Range 4-26mm
(0.16"-1.02")		 10-42mm
(0.40"-1.65")		 25-70mm
(0.98"-2.76")		 25-65mm
(0.98"-2.36")
Piston Area 145cm2 (22.5in2) 145cm2 (22.5in2) 140cm2 (21.7in2) 55cm2 (8.53in2)
Grip Force 4070kgf@7kg/cm2
(8954lbf@100psi)		 4070kgf@7kg/cm2
(8954lbf@100psi)		 4200kgf@7kg/cm2
(9240lbf@100psi)		 3850kgf@16kg/cm2
(8470lbf@229psi)
Weight 22.5kgs (49.5lbs) 22.5kgs (49.5lbs) 33.5kgs (73.7lbs) 23.0kgs (50.6lbs)