Morse 3 |
24.1
|
14
|
138
|
57.5
|
nformation
GPRTOPS high precision top centers High-precision workpieces require high-precision machine tools, sophisticated production processes and precise tools; this applies in particular to cylindrical grinding.
The standard programme of high-precision carbide dead centers includes all the standard and most commonly used shapes. Customised products are required for special machining processes or for process optimisations. With your input our engineers can develop the best workholding solutions for your components.
Dimensional accuracy of GPRTOPS centers |
Compares to DIN |
|
D1
|
D
|
d
|
a
|
l1
|
l2
|
l3
|
lp
|
X
|
Y
|
Z
|
X(AT4) |
Z |
MK 1 |
12.065
|
12.2
|
9
|
3.5
|
53.5
|
57
|
3
|
45
|
0.001
|
0.001
|
0.003
|
0.004 |
0.01 |
MK 2 |
17.781
|
18.0
|
14
|
4.0
|
64.0
|
68
|
4
|
54
|
0.001
|
0.001
|
0.003
|
0.004 |
0.01 |
MK 3 |
23.825
|
24.1
|
18
|
4.5
|
80.5
|
85
|
4
|
69
|
0.001
|
0.001
|
0.003
|
0.004 |
0.01 |
MK 4 |
31.267
|
31.6
|
24
|
6.5
|
102.5
|
109
|
8
|
87
|
0.002
|
0.001
|
0.003
|
0.005 |
0.01 |
MK 5 |
44.399
|
44.7
|
36
|
6.5
|
129.5
|
136
|
8
|
114
|
0.002
|
0.001
|
0.003
|
0.006 |
0.01 |
Concentricity tolerance The concentricity tolerance Z of the 60° center in relation to the taper shank (base A) is considerably better, compared to the DIN requirements. |
|
Taper shank tolerance X = max. error of the taper measured over test-distance lp from D1 down to d. The taper shank tolerance X is considerably smaller than the DIN requirements (AT4). |
Labelling of the center Each one of our centers is coded so that it can be identified precisely to ensure its origin, quality and reproducibility. |
|
Regrinding service, repairs We re-work worn out or damaged centers whenever possible or replace them appropriately. This ensures that centers are always available to you in mint condition. |
Experience, advice Our specialised experience is there to help you. Take up the opportunity and get in touch with us if you have any questions on issues concerning the «center technology». |
|
Subject to technical alterations |
|
|