For Secondary Services, Product Support, or To Order, Call 1-301-696-9800
151
Tolerances
1) Determining the spatial diagonal:
The spatial diagonal R is that between the extreme points of the casting.
It is calculated from the nominal dimensions of the prismatic body, which delimits the casting, whatever its shape
R = l
2
+ b
2
+ h
2
(spatial diagonal)
±0.14
±0.24
±0.17
±0.32
±0.22
±0.42
±0.25
±0.55
Intrinsic
Non-Intrinsic
Intrinsic
Non-Intrinsic
Intrinsic
Non-Intrinsic
Intrinsic
Non-Intrinsic
GTA 13
GTA 13/5
GTA 14
GTA 14/5
over 180
over 50
up to 500
over 180
over 500
±0.17
±0.27
±0.20
±0.35
±0.26
±0.46
±0.35
±0.65
±0.20
±0.30
±0.25
±0.40
±0.31
±0.51
±0.40
±0.70
±0.23
±0.33
±0.30
±0.45
±0.37
±0.57
±0.45
±0.75
±0.27
±0.37
±0.35
±0.50
±0.44
±0.64
±0.55
±0.85
±0.32
±0.42
±0.40
±0.55
±0.50
±0.70
±0.65
±0.95
±0.45
±0.60
±0.60
±0.80
±0.75
±1.00
±0.50
±0.65
±0.65
±0.85
±0.80
±1.10
±0.55
±0.70
±0.70
±0.90
±0.85
±1.10
±0.60
±0.75
±0.80
±1.00
±0.95
±1.20
±0.90
±1.10
±1.10
±1.40
±1.00
±1.20
±1.20
±1.50
±1.20
±1.40
±1.40
±1.70
±1.30
±1.50
±1.60
±1.90
over
30
up to
50
over
120
up to
180
over
180
up to
250
over
1000
up to
1250
over
400
up to
500
over
250
up to
315
over
50
up to
80
over
18
up to
30
over
500
up to
630
over
315
up to
400
Shape
dependency
Aluminum
TOLERANCES FOR
PRESSURE DIECASTINGS
(DIN 1688)*
Table 1. Tolerances of dimensions for lengths, widths, heights, central distances, diameters and roundings.
Intrinsic dimensions are those in the same parts of the tool.
Non-intrinsic dimensions are those created by the interaction of movable tool components, e.g. wall thickness and base
thickness or dimensions affected by additives or extenders.
Nominal Dimension Area
up to
18
over
80
up to
120
over
630
up to
800
over
800
up to
1000
Spatial
diagonal
area
Degree of
exactitude
*Important: We assume no liability for quoted standards.
