Schunk Power Lathe Chuck without Through-hole (ROTA NCR-A) - ISO 702-4

0

Tool Clamping Solutions

Schunk Power Lathe Chuck without Through-hole (ROTA NCR-A) - ISO 702-4

QUANTITY

3 times longer maintenance interval

Sealed 6-jaw power lathe chuck with pendulum mechanism for low-deformation clamping and maintenance intervals three times as long.

Share

Field of application

  • on universal CNC lathes
  • on vertical turret lathes
  • on mill/turn machines
  • on vertical lathes

Product features:

  • 6-jaw compensation chucks
  • Sealed version
  • Pendular compensation: 2+2+2 jaws oscillating in pairs
  • Spindle holder: ISO 702-4 Nr.5 (Z140), Nr. 8 (Z220), Nr.11 (Z300), Nr.15 (Z380) & Nr.20 (Z520)
  • Jaw interface: 1/16" x 90° & 3/32" x 90° Nut 14H7

 

 

Characterization ID O.D- Diameter Spindle Type Spindle Size Serration Max. RPM(1/min) Max.clamping force(kN) Max. actuating force
[kN]
Stroke/jaw(mm) Piston stroke (H)
[mm]
Pendular compensation
[mm]
Moment of inertia
[kgm²]
Weight(kg)
ROTA-NCR-A 190 Z140-KV 1339981 190 mm ISO 702-4 Nr.5 (Z140) Tongue and groove 4000 36 22 6 13.5 ± 1 0.06 14
ROTA-NCR-A 250 Z220-SV90° 1331058 250 mm ISO 702-4 Nr.8 (Z220) 1/16" x 90° 3000 64 38 8 18.5 ± 2 0.31 36
ROTA-NCR-A-F 250 Z220-SV90° 1339984 250 mm ISO 702-4 Nr.8 (Z220) 1/16" x 90° 3000 64 38 8 18.5 ± 2 0.31 36
ROTA-NCR-A 315 Z220-SV90° 1339987 315 mm ISO 702-4 Nr.8 (Z220) 1/16" x 90° 2500 80 40 8 20 ± 2 0.71 55
ROTA-NCR-A-F 315 Z220-SV90° 1339988 315 mm ISO 702-4 Nr.8 (Z220) 1/16" x 90° 2500 80 40 8 20 ± 2 0.71 55
ROTA-NCR-A 400 Z300-SV90° 1339989 400 mm ISO 702-4 Nr.11 (Z300) 1/16" x 90° 1400 100 54 12 30 ± 2.5 2.4 118
ROTA-NCR-A-F 400 Z300-SV90° 1339990 400 mm ISO 702-4 Nr.11 (Z300) 1/16" x 90° 1400 100 54 12 30 ± 2.5 2.4 118
ROTA-NCR-A 500 Z380-SV90° 1339995 500 mm ISO 702-4 Nr.15 (Z380) 1/16" x 90° 1200 125 65 12 30 ± 2.5 6 175
ROTA-NCR-A-F 500 Z380-SV90° 1339996 500 mm ISO 702-4 Nr.15 (Z380) 1/16" x 90° 1200 125 65 12 30 ± 2.5 6 175
ROTA-NCR-A 630 Z520-SV90° 1339997 630 mm ISO 702-4 Nr.20 (Z520) 1/16" x 90° 1000 160 80 16 40 ± 3.5 20 387
ROTA-NCR-A-F 630 Z520-SV90° 1339998 630 mm ISO 702-4 Nr.20 (Z520) 1/16" x 90° 1000 160 80 16 40 ± 3.5 20 387
ROTA-NCR-A 800 Z520-SV90° 1340108 800 mm ISO 702-4 Nr.20 (Z520) 1/16" x 90° 700 160 80 16 40 ± 3.5 34 495
ROTA-NCR-A 1000 Z520-SV90° 1340109 1000 mm ISO 702-4 Nr.20 (Z520) 3/32" x 90° 600 300 150 25 60 ± 6 149 1300

 

  • Sealed power lathe chuck - For significantly longer maintenance intervals
  • Precision angle lever power chuck for top quality demands - Allows excellent machining processes
  • High efficiency of the angle lever system - Process-reliable clamping due to high clamping forces
  • Optimum jaw support for O.D. and I.D. clamping due to a very long base jaw guidance - Allows high clamping forces at a long service life
  • Optimized lubrication system - Consistently high clamping forces are ensured
  • Media feed-through (coolant or air) as standard option integrated in the chuck body - Flexibility depending on the application
  • Low height - For maximum utilization of the machine room
  • Deformation sensitive clamping of thin-walled workpieces - High degree of roundness of the workpieces
  • Very accurate clamping of non-circular components - Perfect for castings
  • Turning ring simplifies and optimizes top jaw boring/machining - Easy handling during boring/machining top jaws
  • All functional parts are ground and hardened - Ensures a long service life
     

The SCHUNK ROTA NCR-A consists of a central chuck piston carrying three inner pendulums aligned at 120°. Each pendulum is connected to two base jaws. This ensures workpiece centering between six contact points, which can be adjusted in pairs. As the clamping forces are directed towards the chuck center, optimum centering is achieved without redundant dimensioning of the workpiece.

The special seals located on the serrated jaw interface and pistons of the SCHUNK ROTA NCR-A prevent grease from being flushed out and prevent the clamping force from being gradually lost. In addition, the seal prevents chips or dirt from ingress into the chuck body. This increases process reliability and lengthens maintenance intervals, translating into less frequent lubrication, and cleaning of the lathe chuck.

 

UNLOCK GREAT OFFERS! DON’T MISS OUT AND FOLLOW US ON  fb