STOP BOLTS/URETHANE WASHERS
Packed Product
■ Stopper Bolt Selections
M (Coarse thread)
Stop Bolts
STBG
G
1.6
• Using the table below, select the appropriate stopper bolt size in accordance with the thickness of the fixed installation plate and runner stripper plate to be used.
Runner stripper plate thickness 10 15 20 25 30 35 40 50
Runner stripper plate thickness 10 15 20 25 30 35 40 50
Fixed installation plate thickness
Stopper bolts D
Stopper bolts D
Fixed installation plate thickness
L
E
L
E
20 101924–––––– 25 15 192429– – – – – 30 20 19242934 – – – – 20 102227–––––– 25 15 22273237 – – – – 30 20 2227323742 – – – 35 25 – 27323742 – – – 40 30 – 2732374247 – – 45 35 – – –374247– – 25 10 –3035– – – – – 30 15 –303540– – – – 35 20 – 30354045 – – – 40 25 – 3035404550 – – 45 30 – – 3540455055 – 50 35 – – – –455055–
30 15 – –3843– – – – 35 20 – –384348– – – 40 25 – – 38434853 – – 45 30 – – – –485358– 50 35 – – – –485358– 60 45 – – – – –5358– 35 15 – –4449– – – – 40 20 – – –495459– – 45 25 – – –495459– – 50 30 – – – 49545964 – 60 40 – – – – 54596469 45 25 – – –556065– – 50 30 – – – 55606570 – 60 40 – – – – 60657080 70 50 – – – – 60657080
ℓ
B H
C
10
－ 0.2 L 0
E
e9 D
K
20
M Material SCM435 H Hardness 33–38HRC
13
Part Number
C K H B M
L
E
ℓ
Type
D
10 19 24 15 19 24 29 20 19 24 29 34 10 22 27 15 22 27 32 37 20 22 27 32 37 42 25 27 32 37 42 30 10 30 35 15 30 35 40 20 30 35 40 45 25 30 35 40 45 50 30 35
25
10
4
8
16
6
6
17
16
30
13
4
8
18
8
8
20
27 32 37 42 47
Urethane Washers
37 42 47
UW
E Although urethane itself has a heat resis- tant temperature of 100°C, when used continuously its durability falls, so use it at a temperature of no more than 80°C.
16
7
13
24
10
10
23
35 40 45 50 55
35
45 50 55
STBG
15 38 43 20 38 43 48 25 38 43 48 53 30
0 － 0.5 ＋ 0.4 ＋ 0.1
d
0 － 0.3
H Hardness ShoreD58
T
D
20
9
13
27
14
12
26
48 53 58 48 53 58
■ Urethane hardness characteristics comparison (comparison with Shore A95)
35 45
Part Number
D
d
T
53 58
Type
d
Characteristics
Unit
ShoreD58
ShoreA95
15 44 49 20
10 13 16 20
16 18 24 27
10 13 16 20
Tensile Strength
MPa
47.8
39.2
49 54 59 49 54 59
1.5 3
Elongation
%
440 153
400 107
25 30 40
25
10
18
33
17
16
32
UW
kgf/cm
Tensile Breakage Strength
49 54 59 64
54 59 64 69
Impact Resilience Compression Set
% %
53 39
40 45 80
25 55 60 65 30 55 60 65 70 40
Part Number – T UW10 – 1.5
℃
Heat–resistant Temperature
100
30
10
18
40
17
20
38
Order
60 65 70 80 60 65 70 80
50
E The above value is the reference value. It is not a guarantee value.
Part Number – L – E STBG16 – 20 – 30
Quotation
Delivery
Order
• When using a urethane washer on the stopper bolt, be careful of the forming dimension of the counterbore depth (W) for securing the stroke (S).
Example
Use for soundproofing when the mold is being opened.
Quotation
Delivery
UW
Stop bolt STBG
• The dimension of the stopper bolt is set so that the head is recessed 2mm below the mounting plate.(See left page for "Stopper Bolt STBG") When using a urethane washer, the relationship between the counterbore depth (W) and the stroke (S) is [W = S + Urethane Washer Thickness T + stopper bolt head thickness K + 2].
• Shaft diameters ( D P.917 ) for stopper bolts STBG and puller bolts PBTN are identical and can be used in combination. When using a D20 stopper bolt, use it together with a D20 puller bolt. • The stopper bolts are designed to sink 2mm from the surface of fixed installation plates listed in the right table. Therefore, the relationship between the counterbore depth (W) and stroke (S) is: [W = S + Stopper bolt’s head thickness K] + 2
Stop bolt
Example
Fixed installation plate Runner stripper plate
Fixed installation plate Runner stripper plate
Fixed die plate
Puller bolt PBTN （ P.917 ）
Fixed die plate
L = (Fixed installation plate thickness) – (Stopper bolt's head thickness K + 2)
Part Number
T
PACK
Type
d
Packed Product
Puller bolt
10PACK
UW
10 13 16 20 1.5
3
Fixed installation plate
Information on packing sales It is advantageous to buy the same size in bulk.
• When a runner stripper plate thickness in the following table is used, screw length ℓ for the stopper bolt is designed to fit into the puller bolt in a length of 1.5 times longer than the screw diameter. In this state, the stopper bolt's thread has an 8mm part not fit into the puller bolt so that a counterbore can be created on the runner stripper plate to house a spring.
Runner stripper plate
Part Number
T
Quotation
Delivery
Order
Spring
PACK Type 10 PACK–UW10–
Fixed die plate
1.5
E = (Stopper bolt M diameter) × 1.5 + (Runner stripper thickness)
915
916
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