SMW Autoblok AP-D 170 Manuel D'utilisation page 8

NT-D NT-M
INCH METRIC
serration serration
Actual gripping force diagrams
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.
*
8 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.
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-D: Master jaws with INCH serration (1/16" x 90°)
NT-M: Master jaws with METRIC serration (1.5 mm x 60°)
(suitable for japanese chuck jaws)
Technical features
Chuck completely sealed.
Centrifugal force compensation by means of counterweight masses.
Constant gripping force with permanent grease lubrication.
Suitable for top jaws with INCH or METRIC serration.
Center bore for coolant and/or air.
proofline™ = fully sealed/low maintenance
Standard equipment
3 jaw chuck
1 set T-nuts and bolts
1 set soft top jaws
215
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)
Ordering example
3 jaw chuck NT-D 210/A6
or
3 jaw chuck NT-M 250/Z220
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 . Using larger and heavier jaws and/or in a more
*
external position, it is necessary to reduce the rotation speed.
170 A5 215 A6
mm 3,6 4,6
mm 17 22
kN 30 42
kN 72 112
rpm 6500 6000
13 25
170 A5 215 A6
mm 3,6 4,6
mm 17 22
kN 30 42
kN 72 112
rpm 6500 6000
Kg 13 25
170 A5 215 A6
mm 3,6 4,6
mm 17 22
kN 30 42
kN 72 112
rpm 6500 6000
Kg 13 25
3 jaws
400
315
260
Speed (r.p.m.)
260 A8 315-A8 400-A11
5 6,3 7
24 30 33
55 65 75
150 180 210
4800 4000 3200
40 68 112
260 A8 315-A8 400-A11
5 6,3 7
24 30 33
55 65 75
150 180 210
4800 4000 3200
40 68 112
260 A8 315-A8 400-A11
5 6,3 7
24 30 33
55 65 75
150 180 210
4800 4000 3200
40 68 112