MADT

MADT

Indexing chuck with draw bar clamping and manual indexing

MADT

MADT chucks series are self-centering. Jaws clamping is automatic trough a draw rod and a rear cylinder and manual indexing system.
• made in special high resistance hardened and cementing 60HRC steel UNI18NiCrMo5, to maintain a high degree of precision, reliability and quality
• jaws slides execution with gib allows good sliding surface finish with possibility to recover clearances consequent to wear
• shaft guide system with two lines of big filled cylindrical pre-loaded radial rollers and with an axially strong ball bearing
• indexing movement simple and reliable: a conical shutter guarantees the mechanical indexing. Indexing precision ±1’30”
• seals against contamination by coolant, chips and dust
• constant and long lasting precision
• easy installation to the machine
• standard with 4 indexing 90° + 1 indexing 45°.
• On request special indexing positions available (8×45°, 6×60°)

ADVANTAGES

• self-centering clamping
• big clamping capacity
• versions with long jaw for workpieces that need a big radius of revolution
• quick and easy installation to the machine, it is request only the connection to the hydraulic cylinder on the lathe
manufacturing of different pieces and also of small series
• workpieces with big radius of revolution and flanges with big diameter
• could be apply in the same machine with a conventional 3 jaws power chuck thanks to the quick retooling increasing unit flexibility and productivity
• the indexing device allowing a quick change between the multiple working axes
• good tools accessibility thanks to the chuck shape

ModelDiameter

mm (in)
Max. closing
force per jaw

N (lb)
Max. traction
force

N (lb)
Chuck opening

mm (in)
Chuck closing

mm (in)
Max. rotation
speed

rpm
Weight

Kg (lbs)
The dimensions are indicative and susceptible to changes due to technical improvements. We reserve the right to make changes without notice.
MADT 165C160
(6.30)
9000
(2023.28)
14700
(3304.69)
75
(2.95)
59
(2.32)
180017
(37.48)
MADT 195C195
(7.68)
14000
(3147.33)
23000
(5170.61)
95
(3.74)
78
(3.07)
160024
(52.92)
MADT 220C220
(8.66)
14000
(3147.33)
23000
(5170.61)
120
(4.72)
102
(4.02)
150030
(66.15)
MADT 220L220
(8.66)
14000
(3147.33)
23000
(5170.61)
120
(4.72)
102
(4.02)
150032
(70.56)
MADT 230C230
(9.06)
13000
(2922.52)
29000
(6519.46)
140
(5.51)
115
(4.53)
140036
(79.38)
MADT 230L230
(9.06)
13000
(2922.52)
29000
(6519.46)
140
(5.51)
115
(4.53)
140038
(83.79)
MADT 250C250
(9.84)
16500
(3709.35)
36200
(8138.08)
150
(5.91)
123
(4.84)
130045
(99.23)
MADT 250L250
(9.84)
16500
(3709.35)
36200
(8138.08)
150
(5.91)
123
(4.84)
130047
(103.64)
MADT 275C275
(10.83)
16500
(3709.35)
36200
(8138.08)
175
(6.89)
147
(5.79)
120059
(130.10)
MADT 275L275
(10.83)
16500
(3709.35)
36200
(8138.08)
175
(6.89)
147
(5.79)
120062
(136.71)
MADT 315C315
(12.40)
16500
(3709.35)
36200
(8138.08)
210
(8.27)
180
(7.09)
100065
(143.33)
MADT 315L315
(12.40)
16500
(3709.35)
36200
(8138.08)
210
(8.27)
180
(7.09)
100070
(154.35)
MADT 350C350
(13.78)
22000
(4945.80)
45500
(10228.81)
230
(9.06)
198
(7.80)
80076
(167.58)
MADT 350L350
(13.78)
22000
(4945.80)
45500
(10228.81)
230
(9.06)
198
(7.80)
80080
(176.40)

Ambient temperature 5-60°C
Sound emissions (sound pressure) ≤ 70 db (A) in each direction