SMW Autoblok AP-D 170 Manuel D'utilisation page 12

NT-RC NT-RD
QUICK JAW CHANGE
QUICK JAW CHANGE
serrated master jaws
Tongue & Groove
Actual gripping force diagrams
215
The diagrams refer to 3-jaw chucks. The max gripping force is the total,
acting on the 3 jaws, obtained by applying to the chuck the max. allowed
traction to the draw bar . The data refers to a chuck in good conditions,
*
using SMW-AUTOBLOK K67 grease.
CARATERISTIQUES TECHNIQUES:
Diamètre du mandrin - Fixation dir. ISO-A
Course par mors (au rayon)
Course du coin
Traction maxi
Force de serrage totale maxi
*
Vitesse maxi
Masse (fixation ACP; sans mors)
CARACTERISTICAS TECNICAS:
Diámetro plato
Carrera por garra (sobre el radio)
Carrera del manguito
Fuerza de tracciòn Máx
Fuerza de cierre Máx
*
Velocidad Máx
Masa (Fijació brida; sin garra)
TECHNISCHE MERKMALE:
Futter Durchmesser - Directaufnahme ISO-A
Hub pro Backe
Kolbenhub
max. Betätigungskraft
max. Gesamt- Spannkraft
*
max. Drehzahl
Gewicht (Z-Aufnahme ohne Backen)
Note: a ±10% deviation in the real values, as regards the nominal values, is normal.
*
12 SMW-AUTOBLOK
High precision power chucks Ø 170 - 400 mm
proofline = fully sealed/low maintenance
centrifugal force compensation
closed center
Application/customer's benefit
For mid to large batch size of chucking parts production, on high speed machines for
high productivity, where the flexibility of the quick jaw change is significant.
Fully sealed, ideal for dry machining of castings and forgings or if high pressure
coolant is used.
Ideal for vertical machines (traditional or pick-up) and horizontal machines.
NT-RC: quick jaw change with Tongue & Groove master jaws
NT-RD: quick jaw change with serrated master jaws (2.5 mm x 60°)
Technical features
Chuck completely sealed. High accuracy patented quick jaw change specially designed
for any type of high production machines. Constant gripping force with permanent
grease lubrication. Centrifugal force compensation by means of counterweight masses.
Use of special top jaws in fix position (NT-RC) or radially adjustable (NT-RD).
Center bore for coolant and/or air.
proofline™ = fully sealed/low maintenance.
Standard equipment
3 jaw chuck
1 set soft top jaws
1 quick jaw change T wrench
mounting bolts
170
Speed (r.p.m.)
TECHNICAL FEATURES:
Chuck size - DIRECT ISO-A Mounting
Jaw stroke (radius)
Wedge stroke
Max draw-pull
Max gripping force
*
Max speed
Mass (plain back, without top jaws) Kg
CARATTERISTICHE TECNICHE:
ø Autocentrante - Attacco dir. ISO-A
Corsa per griffa (sul raggio)
Corsa del manicotto
Forza di trazione max
Forza di serraggio max
Velocità massima
Massa (Att. a flangia; senza morsetti)
The dynamic gripping forces have been measured using the standard soft
top jaws placed in the most external position, but not exceeding the outer
diameter of the chuck
external position, it is necessary to reduce the rotation speed.
170 A5
mm 3,6
mm 17
kN 30
kN 72
rpm 6500
13
170 A5
mm 3,6
mm 17
kN 30
* kN 72
rpm 6500
Kg 13
170 A5
mm 3,6
mm 17
kN 30
kN 72
rpm 6500
Kg 13
3 jaws
Ordering example
3 jaw chuck NT-RC 215/A6
or
3 jaw chuck NT-RD 260/FL220
400
315
260
. Using larger and heavier jaws and/or in a more
*
215 A6 260 A8 315-A8
4,6 5 6,3
22 24 30
42 55 65
112 150 180
6000 4800 4000
25 40 68
215 A6 260 A8 315-A8
4,6 5 6,3
22 24 30
42 55 65
112 150 180
6000 4800 4000
25 40 68
215 A6 260 A8 315-A8
4,6 5 6,3
22 24 30
42 55 65
112 150 180
6000 4800 4000
25 40 68
Speed (r.p.m.)
400-A11
7
33
75
210
3200
112
400-A11
7
33
75
210
3200
112
400-A11
7
33
75
210
3200
112