ROLLER LOCK SETS (NORMAL BUSHINGS/SLIM BUSHINGS) –STANDARD TYPE/LONG TYPE/HEAT PROOF STANDARD TYPE/HEAT PROOF LONG TYPE–
E These products are only available in Japan or in some countries/regions.
■ Standard/heat resistant standard type ( ① ＋ ② set) E One set consists of ① lock holder and ② lock bushing each. Part Number Max. usable load ( 2 Sets under normal temp. ) L L 1 L 2 T HH 1 J K PP 1 P 2 A A 1 t t 1 d d 1 a Accessories 2 pcs. each Type No.
Standard Type/Heat Proof Standard Type
Type
Usage temperature
Normal bushing Slim bushing MPLK MPLKS
Use under temperature 80 ℃ MPLKH MPLKHS Use under temperature 150°C or lower (heat proof)
(Normal bushing) MPLK
981N {100kgf} 1961N {200kgf} 2942N {300kgf} 5884N {600kgf} 7845N {800kgf} 9807N {1000kgf} 2942N {300kgf} 5884N {600kgf} 7845N {800kgf}
CB6–20 CB6–30 CB6–20 CB6–25 CB6–30 CB6–35
(Normal bushing)
(Slim bushing)
10
48 36
36 24
9.5 18
L 1
A 1
A 1
② Lock bush
2542 22 18 2 2
22 24 16
6.5
P 1
t
t
20
54 42
40 28
9 16
11
30
65 46
50 31
6.5
(Normal bushing) MPLK MPLKH
48.5
3.5
26
（ 0.8 ）
（ 0.8 ）
60
35
25 20 3.5
27 19 9.5 17
CB8–30 CB8–35
73 50
52 33
14 9
① Lock holder
＊
80S
56.5
11.5
34
CB10–30 CB10–35 CB6–25 CB6–30
100
103 65 4858 30 24 4 4 76 42 31 34 2513 19 1711
1 （ 15.5 ）
t 1
t
L 2
A （ 24 ）
A
30
65 46
50 31
11 7
P L
M Material Lock holder
S50C Lock bushing SK3
(Slim bushing) MPLKS MPLKHS
48.5
3.5
26
60
35
25 20 3.5
24 19 9.5 15.5
CB8–25 CB8–30
Long Type/Heat Proof Long Type
73 50
52 33
14 9
Type
Usage temperature
＊
80S
56.5
11.5
34
Normal bushing Slim bushing MPLK MPLKS
Use under temperature 80 ℃ MPLKH MPLKHS Use under temperature 150°C or lower (heat proof)
＊ T dimensions of MPLK80S and MPLKS80S are 56.5, while their K dimensions are 11.5. ■ Long/heat resistant long type ( ① + ② set) E One set consists of ① lock holder and ② lock bushing each. Part Number Max. usable load ( 2 Sets under normal temp. ) L L 1 L 2 T HH 1 J K PP 1 P 2 A A 1 t t 1 d d 1 a Type No.
(Normal bushing)
(Slim bushing)
P 1 L 1
A 1
A 1
② Lock bush
t
t
Accessories 2 pcs. each
5884N {600kgf} 7845N {800kgf} 9807N {1000kgf} 7845N {800kgf}
60L
79.5
34.5
57
CB8–30 CB8–35
(Normal bushing) MPLK MPLKH
73 50 35
25 20 3.5
52 33
27 19 9.5 17 14
9
（ 0.8 ）
（ 0.8 ）
80
87.5
42.5
65
CB10–30 CB10–35 CB8–25 CB8–30
100L
103 65 48 89 30 24 4 35 76 42 62 34 25 13 19 17 11
① Lock holder
(Slim bushing) MPLKS MPLKHS
80
73 50 35 87.5 25 20 3.5 42.5 52 33 65 24 19 9.5 15.5 14 9
■ Lock Bushing Component ( ② only) (Common with Heat Proof Type) Part Number Application Type No.
（ 15.5 ） t 1
t 1
L 2
Part Number
A （ 24 ）
A
Application
P L
M Material Lock holder
S50C Lock bushing SK3
Type
No.
10 20
For MPLK(H)10 For MPLK(H)20 For MPLK(H)30 For MPLK(H)S30
For MPLK(H)S30 For MPLK(H)30
30
MPLKSB (Slim bushing)
■ Features
• Enables well–balanced mold opening/closing through its mechanism composed of a belleville spring, internal rollers and lock rollers. • Its rollers prevent uneven wear. • The lock bushing's vertically symmetrical design allows a worn piece to be reused by reinstalling it in reverse. • The lock holder's back recess enables it to be used even on a stepped mold plate. • For heat proof type, the adjusting bolt differs from standard type for identification. (Standard type: black oxide Heat proof type: Trivalent Chromate) Roller Lock Method Load Adjustment and Load Characteristics • Opening/closing load can be adjusted using an Allen wrench. The load is maximum when the adjustment bolt is fully tightened, 50% when it is loosened a half rotation, 0 when it is loosened 1 rotation or more. ※ For MPLK10, the load decreases about 25% when the adjustment bolt is loosened a half rotation, 70% when it is loosened one rotation. • The load for mold closing is about 50% of mold opening. • A fixing screw is provided on the load adjustment bolt. Loosen it to adjust load, and make sure to tighten it after adjustment is completed. Note: Make sure to assemble the right and left units symmetrically for well balanced operation. Please note that the belleville spring may be damaged if you continue to use it with the maximum load.
6080 For MPLK(H)60/80/80S For MPLK(H)S60/80/80S ※ For use in 2–color molding, insert molding, etc. that require additional lock bushings.
Lock holder (S50C)
MPLKB (Normal bushing)
30
Adjustment bolt
For MPLK(H)60/80/60L/80S For MPLK(H)S60/80/80S
6080
Adjustment bolt selection screw
100
For MPLK(H)100/100L
Roller lock (SUJ2 Induction hardening)
Part Number MPLK60 MPLKH80S MPLKS30 MPLKB6080
Quotation
Delivery
Order
Induction hardening
■ Comparison of Normal Bushing and Slim Bushing
MPLKB
Lock bush (SK3)
25
25
About slim bushings • For roller lock set slim bushings, the height of lock bushing (A dimension) is standardized as 24mm. The one side of molding base installation board is a standard corresponding to the amount of protrude 25mm. • When mold is installed in the molding machine, the part where roller lock set protrudes interferes with the tie bar. It prevents damage to the roller lock set and the tie bar. Moreover, there is no trouble during storage and transportation. • Although the heights of bushings (A → 24, t1 → 15.5) become lower, the load and other dimensions remain the same as conventional products.
■ Structure and Usage
Adjustment bolt
Lock holder
(A dimension ＝ 27) Normal bush
(A dimension ＝ 24) Slim bush
Inner roller
Fixed side
Belleville spring Note 1
P.L.
Movable side
Amount of expulsion 1
Amount of expulsion 2
0.8
Roller lock
Lock bush
Mounting plate
(Note 1) Coil spring for MPLK10.
• Mount it in parallel to the PL surface. • Can be removed by pulling it in the direction of the arrow as shown in the figure.
931
932
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