7MPa
Single-action link clamp
model
LM/LJ
Single-action link clamp
Cross-sectional structure and features
LM/LJ
High-power, compact clamp
Long-life, high durability
Exclusive trap valve isolates the
spring housing from the external
atmosphere. Coolant is kept out
eliminating internal corrosion. Also,
cumbersome vent port isn't required.
High force through optimal design
Superior coolant resistance
Each part has been optimized for high
clamping force.
A strong seal has been achieved with a
specially designed dust seal, which can
also be used with high-pressure coolant.
The use of a highly chemical resistant
material makes it highly durable even
when chlorine-based coolant is used.
Directly mount speed
control available
Lightweight aluminum alloy
Lightweight aluminum alloy body is
ideal for moving fixtures and high
speed indexing. This low inertia
reduces load on jig and machine.
(LM0360-LM0750)
Speed and synchronization are easily
adjusted when equipped with direct
mount speed controllers. Air venting
is quick with speed controller or air
vent valve. Speed controller and air
valve are for use with manifold (C type)
hydraulic supply.
Speed control valve (Model BZL)
Assembly diagram
Air venting diagram
Three clamp directions available
Three available orientations allow
greater design flexibility
model BZL
Air venting valve
model JZG
Lever direction (viewed from the port side)
L: Left
Compact design
model BZX
1
7MPa
(Refer to page 11)
Even being single-action, it is very
compact.
ht t p : / / w w w. k o s m ek.co.j p
C: Center
R: Right
model
LM/LJ
INDEX
Model code
LM/LJ
3
Performance Graph
LM/LJ
Standard type
5
7
Clamp with link mechanism
Lever design dimensions/accessories
9
Remarks
15
KOSMEK LTD .
2
Single-action link clamp
Single-action link clamp
Model code
L M 048 0 - C R
1
2
3
4
5
1 Body material * 1
M : Aluminum alloy (Body size: 036-075)
J : Steel
(Body size: 090-105)
2 Body size
Shows the exterior diameter (φD) of the
cylinder on the main unit
φD
3 Design No.
C
G
S
4 Piping methods
C : Gasket type (with G thread plug)
G : Gasket type * 2
S : Pipe type (Rc thread)
Pipe type
Gasket type
with G thread plug
Speed controller can be installed
5 Lever direction
L
Rc thread
C
L : Left
C : Center
R : Right
Notes
*1 The aluminum alloy body material (LM) is for body sizes 036-075, and the steel (LJ) is for body sizes 090 and 105.
*2 With the gasket type, the one with the alluminum alloy body (LM) has no Rc thread, while the one with the steel body (LJ)
has a plug on the Rc thread.
3
7MPa
ht t p : / / w w w. k o s m ek.co.j p
R
Model code
LM/LJ
model
Speed control valve (with air venting function) *1
1
2
Model code
BZL 0 1 0 0 - A
3
1 G thread size
1 : G1/8
2 : G1/4
3 : G3/8
2 Design No.
3 Type of control
BZL-A:Meter-in
BZL-B:Meter-out
A : Meter-in
B : Meter-out
*1 Can only be installed on C-type piping system.
P1 Port
Hydraulic pressure
supply side
P2 Port
Clamp side
P1 Port
Hydraulic pressure
supply side
P2 Port
Clamp side
Air bleed valve *2
BZX 0 1 0
1
2
1 G thread size
1 : G1/8
2 : G1/4
3 : G3/8
2 Design No.
*2 Can only be installed on C-type piping system.
G thread plug (with air bleed function) *3
JZG 0 1 0
1
2
1 G thread size
1: G1/8
2 : G1/4
3 : G3/8
2 Design No.
*3 Shipped assembled on C-type piping system.
KOSMEK LTD .
4
Single-action link clamp
Performance Curve
Non-usable
range
27.5(7.5)
2
33.5(13.5)
1.5
40(20)
1
50(30)
0
3
4
5
6
7
LM0550
2
40(17.5)
50(27.5)
1
60(37.5)
70(47.5)
80(57.5)
100(77.5)
3
0
4
5
LM0650
35(5)
6
6
60(34.5)
80(54.5)
0
2
3
4
5
6
7
Supplied hydraulic pressure (MPa)
LM0750
50(15)
50(7.5)
60(17.5)
Non-usable
range
12
50(20)
3
60(30)
2
80(50)
100(70)
120(90)
Clamp force (kN)
7
１
56.5(21.5)
6
5
4
80(45)
3
100(65)
120(85)
140(105)
160(125)
2
１
2
3
4
5
6
7
Non-usable
range
20
3
4
5
LJ1052
60(10)
16
100(50)
120(70)
8
140(90)
160(110)
180(130)
200(150)
4
7
67.5(25)
10
8
80(37.5)
6
100(57.5)
120(77.5)
140(97.5)
160(117.5)
4
2
0
2
3
4
5
6
7
Supplied hydraulic pressure (MPa)
80(20)
Non-usable
range
28
77.5(27.5)
12
6
70(10)
32
70(20)
Clamp force (kN)
LJ0902
2
0
Supplied hydraulic pressure (MPa)
Supplied hydraulic pressure (MPa)
Clamp force (kN)
50(24.5)
2
100(74.5)
120(94.5)
7
Non-usable
range
8
4
0
42(16.5)
1
40(5)
40(10)
Non-usable
range
5
Clamp force (kN)
36.5(14)
35（9.5）
3
Supplied hydraulic pressure (MPa)
Supplied hydraulic pressure (MPa)
Non-usable
range
30(7.5)
60(40)
70(50)
80(60)
100(80)
0.5
Performance Curve
3
30(4.5)
4
Non-usable
range
Clamp force (kN)
Clamp force (kN)
2.5
LM0480
25(2.5)
Clamp force (kN)
LM0400
22.5(2.5)
3
Clamp force (kN)
LM0360
95(35)
24
20
110(50)
16
130(70)
12
150(90)
170(110)
8
210(150)
230(170)
4
0
2
3
4
5
6
7
2
0
3
4
5
6
7
Supplied hydraulic pressure (MPa)
Supplied hydraulic pressure (MPa)
Remarks 1. This graph shoTws the relationship between supply pressure and clamp force.
2. If used outside the permitted range it could cause deformation, dragging or oil leaks.
Notes
1. Clamp force is found by substituting lever length and hydraulic pressure in the formulas in the specifications column. (see page 8).
2. Cylinder thrust (L=0) cannot be found with the formula.
−How to read performance curve diagrams (How to find clamp force)
① Type
L
s
Clamp force (kN)
E.g.) ① Type
: LM0480
LM0480
② Supplied hydraulic
4
pressure
: 5.0 MPa
③ Lever length : L=42 mm
④ Clamp force :approximately 1.94 kN
Non-usable range
30(4.5)
35（9.5）
3
42(16.5)
50(24.5)
2
④
60(34.5)
80(54.5)
100(74.5)
120(94.5)
1
0
2
3
4
5
6
７
②
Supplied hydraulic pressure (MPa)
5
7MPa
35（9.5）
③
h t t p : / / w w w. k o s m ek.co.j p
Standard lever dimensions
42(16.5)
Lever length L
50(24.5)
Clearance between lever and flange S
Standard type
model
LM/LJ
Allowable eccentricity graph
LM0400
50
LM0480
50
3.5MPa
30
5.0MPa
20
6.0MPa
10
7.0MPa
0
20
30
40
50
60
70
80
90
30
5.0MPa
20
6.0MPa
10
7.0MPa
0
20
100
30
Lever length L (mm)
40
50
60
70
80
90
30
20
6.0MPa
10
0
100
5.0MPa
7.0MPa
20
40
Lever length L (mm)
60
80
100
120
Lever length L (mm)
LM0650
LM0550
60
3.5MPa
40
Eccentricity H (mm)
40
Eccentricity H (mm)
Eccentricity H (mm)
40
50
3.5MPa
LM0750
3.5MPa
80
3.5MPa
80
3.5MPa
70
40
5.0MPa
30
20
6.0MPa
7.0MPa
10
0
30
60
5.0MPa
40
6.0MPa
20
7.0MPa
0
40
50
60
70
80
90
100
110
120
30
50
Lever length L (mm)
110
130
150
60
50
5.0MPa
40
30
6.0MPa
20
7.0MPa
10
0
30
50
70
90
110
130
150
Lever length L (mm)
LJ1052
100
120
3.5MPa
3.5MPa
100
60
Eccentricity H (mm)
80
Eccentricity H (mm)
90
Lever length L (mm)
LJ0902
5.0MPa
40
6.0MPa
20
0
50
70
Eccentricity H (mm)
Eccentricity H (mm)
Eccentricity H (mm)
50
Allowable eccentricity graph
LM0360
7.0MPa
70
90
110
130
150
170
80
5.0MPa
60
40
6.0MPa
20
7.0MPa
0
60
190
80
Lever length L (mm)
100
120
140
160
180
200
220
Lever length L (mm)
Remarks 1. These graphs show the relationship between allowable eccentricity and lever length with respect to hydraulic pressure.
2. Use under eccentricity that exceeds the allowable amount can lead to deformation, scraping, oil leaks or other problems.
−How to read allowable eccentricity graphs
Lever length
L
Eccentricity
H
② Supplied hydraulic pressure
① Type
LM0480
50
3.5MPa
40
Eccentricity H (mm)
E.g.) ① Type
: LM0480
② Supplied hydraulic
pressure
: 5.0 MPa
③ Lever length : L=80 mm
④ Allowable eccentricity :18.3 mm
30
5.0MPa
20
④
6.0MPa
10
0
7.0MPa
20
40
60
80
100
③
Lever length L (mm)
120
KOSMEK LTD .
6
Single-action link clamp
Exterior Dimensions
Machining dimensions for
mounting portion
C : Gasket type (with G thread plug)
※ This drawing shows the released position of LM/LJ-CC.
B
JA
H
J
Trap valve
2-Chamfer 1
Link lever
(Accessories)
Ny
(LM/LJ-CL)
Hydraulic pressure
portφP
Nx
Z
C
K
φJB
Ny
(-C/-G Type)
φL
4-CA thread *3
□K
Make sure there are no burrs
6.3S
G thread plug
(-C type only)
Hydraulic pressure port
(G thread)
(LM/LJ-CR)
Speed controller can
only be installed on –C type
φD
+0.3
0
C0.6
4-φR
Counterbore
*4
AA
AF AG°
AC
1-φAD H7
φU
Y
2-φAE H7
15°
S *2
M
A
G
*1
X
AB
Chamfer 2
W ±0.4
Locking stroke Stroke allowance
LM/LJ
T
V
Chamfer 2
Remarks
*3 The CA thread depth for mounting bolts is to be decided
by the customer according to the mounting height using the
S dimensions as a reference.
*4 The depth of diameter D for the mounting hole on the unit
is to be decided by the customer according to the mounting
height using the F dimensions as a reference.
E
Piping methods
G : Gasket type (with R thread plug)
F
※ This drawing shows the released position of LJ-GC.
There is no R thread plug (Rc thread) on LM036-075.
φD -0.1
-0.2
Hydraulic pressure port:
O ring (supplied)
Nx
(-C/-G Type)
Ny
R thread plug
Remarks
*1 The flange’ s angle of tilt is 12° on LM0650 only.
*2 Mounting bolts not supplied.
Prepare mounting bolts according to the mounting
height using the S dimensions as a reference.
7
7MPa
h t t p : / / w w w. k o s m ek.co.j p
max.2mm
S : Pipe type (Rc thread)
※ This drawing shows the released position of LM/LJ-SC.
Hydraulic
pressure port
Rc thread
Standard type
model
LM/LJ
Specifications
Model
Locking cylinder area cm2
Clamping capacity
(formula) *5
LM0360
3.8
F=
kN
mm
Full stroke *6
mm
Locking stroke *6
Stroke allowance
mm
Cylinder volume
cm3
Return spring force kN
Maximum operating pressure MPa
Minimum operating pressure MPa
Pressure resistance MPa
Operating temperature ℃
kg
Weight *7
4.96×P-1.87
L-14.5
18.5
16
2.5
7.0
0.09 ～ 0.15
LM0400
4.5
F=
6.51×P-2.80
L-16
20.5
17.5
3
9.3
0.10 ～ 0.21
LM0480
6.2
F=
10.25×P-5.62
L-18.5
23.5
20.5
3
14.5
0.17 ～ 0.36
LM0550
9.1
F=
LM0650
13.9
17.16×P-7.49
L-21
26
23
3
23.6
0.24 ～ 0.44
F=
30.55×P-12.13
L-24.5
29.5
26.5
3
40.9
0.33 ～ 0.58
LM0750
21.2
F=
57.34×P-24.93
L-30
LJ0902
33.2
F=
107.52×P-41.12
L-36
LJ1052
46.6
F=
184.41×P-61.17
L-44
35
32
3
74.3
0.49 ～ 0.96
41
38
3
136.1
0.68 ～ 1.33
49
46
3
228.2
0.95 ～ 1.58
2.1
6.5
10.2
7
2.5
10.5
0 ～ 70
0.35
0.4
0.6
0.9
1.4
Notes
*5 F: Clamp force (kN); P: Hydraulic pressure (MPa); L: Distance (mm) from center of piston to clamp point
*6 Shows the stroke of the piston rod.
*7 Shows the weight of the clamp unit minus the link lever.
L
F
Model
A
B
C
D
E
F
G
H
J
K
L
M
Nx
Ny
P
Q
R
S
T
U
V
W
X
Y
Z
Chamfer 1
Chamfer 2
AA
AB
AC
AD
AE
AF
AG
CA
JA
JB
Hydraulic pressure port G thread plug (-C)
(Recommended inner diameter of pipe)
Hydraulic pressure port R thread plug (-G)
(Recommended inner diameter of pipe)
O ring
Hydraulic pressure port (Rc thread) (-S)
LM0360
94
49
40
36
63.5
38.5
25
29
20
31.4
63
11
23.5
5
3
7.5
4.5
18
27
10
22.5
30
20
11
19
C2
C2.5
14.5
74.3
47.3
5 +0.012
0
5 +0.012
0
2.9
19.6
M4×0.7
3.5
14
G1/8
(φ6)
R1/8
(φ6)
1BP5
Rc1/8
LM0400
103.5
54
45
40
70
45
25
31.5
22.5
34
68
11
26
5
3
9.5
5.5
15.5
30.5
12
25
30.5
22
13
21
C3
C3
16
77.7
50.2
6 +0.012
0
6 +0.012
0
2.7
20.2
M5×0.8
3.5
14
G1/8
(φ6)
R1/8
(φ6)
1BP5
Rc1/8
LM0480
114
61
51
48
75
47
28
35.5
25.5
40
73
12
30
0
3
9.5
5.5
17.5
35
14
29
34.5
26
13
21
C3
C3
18.5
92.4
61.2
6 +0.012
0
6 +0.012
0
4.3
18.9
M5×0.8
3.5
14
G1/8
(φ6)
R1/8
(φ6)
1BP5
Rc1/8
LM0550
132.5
69
60
55
87
59
28
39
30
47
80
12
33.5
0
3
11
6.8
15
37.5
16
31.5
35.5
30
16
28
（φ80）
C3
21
101.9
71.7
6 +0.012
0
8 +0.015
0
4.7
19.9
M6
3.5
14
G1/8
(φ6)
R1/8
(φ6)
1BP5
Rc1/8
LM0650
147
81
70
65
93
63
30
46
35
55
94
13
39.5
0
5
11
6.8
15.5
45
18
37
39
35.5
19
37
（φ94）
C5
24.5
111.4
78.7
8 +0.015
0
10 +0.015
0
4.3
20.5
M6
4.5
19
G1/4
(φ8)
R1/4
(φ8)
1BP7
Rc1/4
LM0750
175
94.5
85
75
108
71
37
52
42.5
63
106
16
45
0
5
14
9
19.5
55
22
45
48
43.5
25
40
（φ106）
C5
30
130.8
90.8
10 +0.015
0
12 +0.018
0
4.5
21.4
M8
4.5
19
G1/4
(φ8)
R1/4
(φ8)
1BP7
Rc1/4
LJ0902
207
109.5
100
90
128
88
40
59.5
50
75
126
16
52.5
0
5
17.5
11
19
64.5
28
52
52.5
52.5
28
49
（φ126）
C6
36
146.5
104.6
12 +0.018
0
15 +0.018
0
5
22.4
M10
4.5
22
G3/8
(φ12)
R3/8
(φ12)
1BP7
Rc3/8
LJ1052
243
127
120
105
149
99
50
67
60
88
147
17
60
0
5
20
14
24.5
77
35.5
62
64
64
32
64
（φ147）
C6
44
173.6
122.5
15 +0.018
0
18 +0.018
0
4.1
23.1
M12
4.5
22
G3/8
(φ12)
R3/8
(φ12)
1BP7
Rc3/8
LM/LJ
Exterior dimension chart and machining dimension chart for mounting portion
Remarks
1. The recommended inner pipe diameters in the chart are reference values.
Make appropriate changes according to the number of clamps used and the distance from the piping.
KOSMEK LTD .
8
Single-action link clamp
Link lever design dimensions
※ Use as a reference when designing and manufacturing link levers.
Compatible Models
LM0360
LM0400
LM0480
LM0550
LM0650
LM0750
LJ0902
LJ1052
A
14.5
16
18.5
21
24.5
30
36
44
B
12.5
14
16
20
25
32
38
45
0
12 -0.3
6 +0.012
0
0
12 -0.3
6 +0.012
0
0
16 -0.3
6 +0.012
0
0
19 -0.3
8 +0.015
0
0
22-0.3
10+0.015
0
0
25-0.3
12+0.018
0
0
32-0.4
D
0
10 -0.2
5 +0.012
0
E
5 +0.012
0
6 +0.012
0
6 +0.012
0
8 +0.015
0
10+0.015
0
12+0.018
0
15 +0.018
0
18+0.018
0
F
5
6
6
8
10
11
13
16
G
10
11.5
13
12.5
16
20
24
28
H
R2.5
R3
R3
R4
R5
R5.5
R6.5
R8
C
A±0.02
φE H7
L
J
B
M±0.02
N
φD H7
K
C
F +0.1
0
G
J
10
12
13
13
17.5
22
26
30.5
K
R4.5
R5.5
R6
R6
R8
R10
R11
R13
L
4.5
5.5
6
6
8
10
11
13
M
2.5
2.5
3.5
6
7.5
9.5
13
16
N
4.5
5.5
6
6
8
10
11
13
Remarks
1) Design and manufacture the link lever referring to the performance curve
for the length. (see page 5).
2) If you manufacture a link lever with different dimensions than the chart above,
it could lead to malfunctions, including poor clamp force not up to specification,
deformation and scraping.
Lever design dimensions
H
9
7MPa
15+0.018
0
ht t p : / / w w w. k o s m ek.co.j p
Standard type
model
LM/LJ
B
0 D+0.1
Standard link lever : LZ-LJ1
F
Model
LZ0360 LZ0400 LZ0480 LZ0550 LZ0650 LZ0750 LZ0900 LZ1050
-LJ1
-LJ1
-LJ1
-LJ1
-LJ1
-LJ1
-LJ1
-LJ1
Compatible Models
LM0360 LM0400 LM0480 LM0550 LM0650 LM0750 LJ0902 LJ1052
E
M
A
φT H7
Nuts (3 types)
H
K
J
G
C
R S ±0.02
φU H7
SR
N
P ±0.02
L
Quenching
Q
HRC 50 or higher
A
43
B
10 -0.2
0
48
54
0
12-0.3
12-0.3
64
16-0.3
0
19 -0.3
22 -0.3
25 -0.3
0
32-0.4
0
74.5
0
88.5
0
102.5
0
125
C
12.5
14
16
20
25
32
38
45
D
5
6
6
8
10
11
13
16
E
12.5
14.5
16
16.5
21
25.5
30.5
36
F
2.5
3
3
4
5
5.5
6.5
8
G
10
12
13
13
17.5
22
26
30.5
H
10.5
13
13
17
22
25
31
38
J
7
7.5
8
10
13
16
22
27
K
14.5
16
18
22
27
31
40
47
L
9
10
10
15
20
30
45
60
M
M5×0.8
M6
M6
M8
M10
M12
M16
M20
N
4.5
5.5
6
6
8
10
11
13
P
14.5
16
18.5
21
24.5
30
36
44
Q
19
20.5
23.5
29
32
37.5
41.5
51
R
4.5
5.5
6
6
8
10
11
13
S
2.5
2.5
3.5
6
7.5
9.5
13
16
T
5 +0.012
0
6 +0.012
0
6+0.012
0
6 +0.012
0
U
5 +0.012
0
6 +0.012
0
6+0.012
0
8 +0.015
10 +0.015
12 +0.018
15 +0.018
18 +0.018
0
0
0
0
0
8+0.015
10 +0.015
12 +0.018
15 +0.018
0
0
0
0
Notes
1) Material S45C
F
E
A
φU H7
C
G
R S ±0.02
φT H7
N P ±0.02
Model
LZ0360 LZ0400 LZ0480 LZ0550 LZ0650 LZ0750 LZ0900 LZ1050
-LJ2
-LJ2
-LJ2
-LJ2
-LJ2
-LJ2
-LJ2
-LJ2
Compatible Models
LM0360 LM0400 LM0480 LM0550 LM0650 LM0750 LJ0902 LJ1052
A
65
75
85
90
B
0
10-0.2
0
12-0.3
0
12-0.3
0
16-0.3
105
0
19-0.3
110
0
22-0.3
160
0
25-0.3
220
0
32-0.4
C
12.5
14
16
20
25
32
38
45
D
5
6
6
8
10
11
13
16
E
12.5
14.5
16
16.5
21
25.5
30.5
36
F
2.5
3
3
4
5
5.5
6.5
8
G
10
12
13
13
17.5
22
26
30.5
N
4.5
5.5
6
6
8
10
11
13
P
14.5
16
18.5
21
24.5
30
36
44
R
4.5
5.5
6
6
8
10
11
13
S
2.5
2.5
3.5
6
7.5
9.5
13
16
T
5 +0.012
0
6 +0.012
0
6 +0.012
0
6 +0.012
0
U
5 +0.012
0
6 +0.012
0
6 +0.012
0
8 +0.015
10 +0.015
12 +0.018
15 +0.018
18 +0.018
0
0
0
0
0
8 +0.015
10 +0.015
12 +0.018
15 +0.018
0
0
0
0
Notes
1) Material S45C
2) Perform additional machining on the end as necessary.
Manifold block : LZ-MS
B
H
φD +0.3
0
A
H
F
6.3S
4-φK
L
E
LZ0360 LZ0400 LZ0480 LZ0550 LZ0650 LZ0750 LZ0900 LZ1050
-MS
-MS
-MS
-MS
-MS
-MS
-MS
-MS
Compatible Models LM0360 LM0400 LM0480 LM0550 LM0650 LM0750 LJ0902 LJ1052
A
51.5
56.5
62
70
82
93
107
122
Model
C±0.1
C0.6
C0.6
B
40
45
51
60
70
80
95
C
20
20
27
30
32
37
45
50
D
36
40
48
55
65
75
90
105
E
31.5
34
36.5
40
47
53
59.5
67
F
20
22.5
25.5
30
35
40
47.5
55
H
31.5
34
40
47
55
63
75
88
J
4.5
5.5
5.5
6.8
6.8
9
11
14
L
23.5
26
30
33.5
39.5
45
52.5
60
M
5
5
0
0
0
0
0
0
O ring
M
P face
O ring
Accessories
B
+0.1
D 0 Material link lever : LZ-LJ2
110
1BP5 1BP5 1BP5 1BP5 1BP7 1BP7 1BP7 1BP7
Notes
1) Material S45C
2) Mounting bolts not supplied. Prepare mounting bolts according to the
mounting height using the C dimensions as a reference.
3) If you need a different thickness (dimension C) than the block, perform
additional machining on the P face. Alternatively, refer to this drawing
to manufacture it on your own.
KOSMEK LTD .
10
Single-action link clamp
Speed Control Valve (with air venting function) : BZL*1
BZL is the direct mount G thread speed control valve for piping method: C type.
It is best used in the in the circuit where the flow governing valve cannot be mounted,
or the synchronized and individual adjustment is necessary.
Additionally, air can be vented at the component, improving stability of the hydraulic system.
*1 It can only be installed on Piping Method C Type.
Specifications
Circuit Symbol
Model
BZL0100-A BZL0200-A BZL0300-A BZL0100-B BZL0200-B BZL0300-B
7
Max. rated pressure
10.5
Controlling Method
Meter-in
Meter-out
G thread size
G1/8
G1/4
G3/8
G1/8
G1/4
G3/8
Cracking pressure MPa
0.04
0.12
2.6
5.0
11.6
2.6
5.0
10.2
Maximum passage area mm2
Tightening torque N・m
10
25
35
10
25
35
Maximum Use Pressure
Remarks
1. The maximum passage area when the controlling side is fully opened is the same as the maximum
passage area shown in the table above.
External Dimensions
M thread
(Link clamp)
Special packing
φB
BZL0□00
-□
(Attached)
Hexagonal Lhole
Closed
Open
J
max.H
Hexagonal K
Hexagonal A
G thread
P2 port
Clamping side
E
D
max.C
F
P1 port
Processing dimensions for the mounting area
Notes
U thread
Z
(Lower hole ØT flat bottom)
0
N -0.10
min.P
P2 Port
Clamping side
φW
0.2
45°
min.φR
max.φS
φT
Accessories
Hydraulic supply side
⊥ 0.1 Z
BZL-A：meter-in
MPa
MPa
0.4
φV
Q
P1 Port
Hydraulic supply side
P1 port
P2 port
Hydraulic prssure
supply side
Clamp side
BZL-B：meter-out
P1 port
P2 port
Hydraulic prssure
supply side
Clamp side
Model
BZL0100-□
BZL0200-□
BZL0300-□
Corresponding
Product Model
LM0360
LM0400
LM0480
LM0550
LM0650
LM0750
LJ0902
LJ1052
A
B
C
D
E
F
G
H
J
K
L
M
N
P
Q
R (Flat area)
S
T
U
V
W
14
15.5
15
12
8.5
(11.6)
G1/8
3
3.5
10
3
M6×0.75
11.5
8.5
9
16
10
8.7
G1/8
2～3
2.5 ～ 5
18
20
16
13
9.5
(15.1)
G1/4
3
3.5
10
3
M6×0.75
15
*1
11
11.5
20.5
13.5
11.5
G1/4
3～4
3.5 ～ 7
22
24
19
16
11
(17.6)
G3/8
3
5
13
4
M8×0.75
17.5
13
13
24.5
17
15
G3/8
4～5
4.5 ～ 9
Notes
1．As the ▽▽▽ area is sealing part, pay attention not to damage it.
2．As the ▽▽ area is the metal sealing part at the BZL side, pay
attention not to damage it (Notes for deburring)
3．Pay attention to have no cutting powder and burring at the tolerance
part of the processing hole.
4．As shown in the drawing, P1 port is used as the hydraulic supply side
and P2 port as the clamping side.
5．If the market available plug and connector with G screw specs are
considered to be mounted, “*1” in the specification list is 12.5.
6．It is dangerous to have air venting operation under high pressure.It
must be done under lower pressure.
(For reference: the minimum operation pressure range of the product
within the circuit)
11
7MPa
h t t p : / / w w w. k o s m ek.co.j p
Speed Control Valve
model
BZL
Flow characteristics graph <Hydraulic fluid ISO-VG32（25～35℃）>
BZL0200-A：meter-in
Control flow direction
Control flow direction
Pressure loss
5MPa
6
Pressure loss
3MPa
4
2
Pressure loss
0
1
2
30
20
5MPa
15
3MPa
10
5
0
4
←Closed Number of turns of adjusting screw Opened→
0
1
Free flowing direction
Fully closed
2
1
2
3
4
5
10
Fully closed
5
2
Pressure loss
0
1
2
3
1MPa
4
0
1
3
4
5
6
4
Fully closed
2
3
4
5
6
3
4
5
6
Control flow direction
30
5MPa
15
3MPa
10
5
0
1
2
3
5MPa
25
20
3MPa
15
10
5
1MPa
1MPa
0
4
0
1
15
10
Fully closed
5
1
2
3
4
Pressure loss (MPa)
5
6
3
4
Free flowing direction
30
Fully opened
0
2
←Closed Number of turns of adjusting screw Opened→
35
20
0
2
BZL0300-B：meter-out
Flow rate (L/min)
Flow rate (L/min)
6
2
1
Free flowing direction
Fully opened
Pressure loss (MPa)
0
Pressure loss (MPa)
25
1
Fully closed
10
35
Free flowing direction
Flow rate (L/min)
2
←Closed Number of turns of adjusting screw Opened→
10
0
15
5
20
0
←Closed Number of turns of adjusting screw Opened→
8
Fully opened
20
0
Flow rate (L/min)
Flow rate (L/min)
Flow rate (L/min)
3MPa
4
25
Control flow direction
6
3
30
BZL0200-B：meter-out
5MPa
2
←Closed Number of turns of adjusting screw Opened→
25
4
1
Free flowing direction
15
Control flow direction
Pressure loss
0
Pressure loss (MPa)
10
0
4
Fully opened
20
0
6
BZL0100-B：meter-out
Pressure loss
5
35
Pressure loss (MPa)
8
10
1MPa
3
Flow rate (L/min)
Flow rate (L/min)
Flow rate
(L/min)
Fully opened
0
3MPa
15
Free flowing direction
6
0
2
25
4
20
0
←Closed Number of turns of adjusting screw Opened→
10
8
5MPa
25
1MPa
1MPa
3
35
Flow rate (L/min)
8
0
Control flow direction
25
Flow rate (L/min)
Flow rate (L/min)
10
0
BZL0300-A：meter-in
Accessories
BZL0100-A：meter-in
Fully opened
25
20
15
Fully closed
10
5
0
0
1
2
3
4
5
6
Pressure loss (MPa)
KOSMEK LTD .
12
Single-action link clamp
Air venting valve : BZX *1
BZL is the direct mount G thread speed control valve for piping method: C type.
As it is specially for air venting, it is easy to vent the air within the hydraulic circuit.
*1 It can only be installed on Piping Method C Type.
Specifications
Circuit Symbol
Model
BZX010
MPa
MPa
Maximum use pressure
Max rated pressure
G thread size
Tightening torque (housing)
G1/8
10
N・m
BZX020
25
37.5
G1/4
25
BZX030
G3/8
35
External Dimensions
Housing
Locking nut
M6 (3 types)
Model
BZX010
BZX020
BZX030
Corresponding
Product Model
LM0360
LM0400
LM0480
LM0550
LM0650
LM0750
LJ0902
LJ1052
A
B
C
D
E
G
O ring
14
15.5
19.8
9.3
5.5
G1/8
9GNC00507B
18
20
20.6
10.1
6.3
G1/4
9GNC00511B
22
24
20.6
10.1
6.3
G3/8
9GNC00514B
(Link clamp)
Plug
M6x1
φB
O ring (attached)
G thread
3.6
3.8
Hexagonal hole 3
E
D
Hexagonal 10
Hexagonal A
10.5
C
Notes
1. Do not over loosen the plug during air venting.
(Do not loosen for more than 2 turns from the fully closed status.)
2. It is dangerous to have air venting operation under high pressure.
(For reference: the minimum operation pressure range of the
product within the circuit)
3. Refer to the processing dimensions for BZL mounting area if it is
otherwise mounted within the hydraulic circuit. (Refer to Page 11)
G thread plug (with air venting function) : JZG *2
JZG is the plug with air venting function which consists of the G thread plug and special packing.
Moreover, air is vented at the equipment end like BZL, improving the stability of the hydraulic system.
Accessories
*2 It is assembled with Piping Method C Type for delivery.
Specifications
Model
JZG010
Maximum use pressure
Max rated pressure
MPa
MPa
G thread size
G1/8
10
Tightening torque N・m
JZG020
35
42
G1/4
25
JZG030
G3/8
35
External Dimensions
Special packing
φA
(Attached)
Hexagonal hole D
G thread
B
13
7MPa
C
ht t p : / / w w w. k o s m ek.co.j p
Model
JZG010
JZG020
JZG030
Corresponding
Product Model
LM0360
LM0400
LM0480
LM0550
LM0650
LM0750
LJ0902
LJ1052
A
B
C
D
G
14
3.5
8
5
G1/8
19
4.5
9
6
G1/4
22
4.5
10
8
G3/8
Notes
1. Refer to the processing dimensions for BZL mounting area if it is
otherwise mounted within the hydraulic circuit. (Refer to Page 11)
Air venting valve/G screw type
model
BZX/JZG
Applications Example
LM/LJ
Link Clamp
BZL0□00-A
Speed control valve
JZG
G thread plug
Hydraulic pressure port
Accessories
Hydraulic pressure port
KOSMEK LTD .
14
Single-action link clamp
Design-related Cautions
1) Check the specifications
5) When clamping a sloped surface on the workpiece
– The maximum hydraulic pressure is 7.0 MPa and the minimum 2.5 MPa.
– Make sure the clamp surface and the mounting surface
However, the maximum operating pressure and clamp force will vary
on the workpiece are parallel.
depending on the length of the link lever. If a load that exceeds the
operating range is exerted it could lead to deformation, scraping, oil
leaks, etc. Refer to the performance curve and use the appropriate
pressure for the length of the swing lever used. (see page 5).
6) When using in a dry environment
– The link pin can get burnt. Grease it periodically or use a
special pin. Contact us for the specifications for special
2) Considerations when designing the circuit
pins.
– When designing the hydraulic pressure circuit, read
"Hydraulic Pressure Cylinder Speed Control Circuit and
Cautions," and design the circuit accordingly.
7) When using a speed control valve (BZL)
If the circuit design is flawed, the equipment could be
damaged or malfunction. (see page 18).
– Do not attach used BZL valves to other clamps. The
metal seal may not close all the way depending on the
variation in the underside of the G thread on the clamp,
3) Cautions for link lever design
– Make sure no force is applied to the piston rod outside the
Uses like the one shown in the figure below will apply a large
bending stress to the piston rod and must be avoided.
– If there is eccentricity on the link, use it within the allowable
range on the allowable eccentricity graph. (see page 6).
4) When using it on a welding jig or other such equipment,
Cautions for Design
protect the sliding surface of the piston rod and link plate.
– If spatter gets onto the sliding surface it could lead to
malfunction and oil leaks. (see page 6).
7MPa
The speed control valve (BZL) can only be installed on
C-type piping system. (see page 11).
axial direction.
15
thereby preventing adjustment of the flow rate.
h t t p : / / w w w. k o s m ek.co.j p
Remarks
model
LM/LJ
Cautions for Mounting
1) Check the fluid to use
– Make sure to use the Hydraulic Fluid List to choose the
appropriate fluid.
(3) Shake the pipes left and right to loosen the pipes at the
joint. Hydraulic fluids with air mixed in will come out.
2) Precautions for installing piping
– Flush the pipes, joints and jig oil holes to make sure they are clean.
– Chips and foreign material in the circuit will lead to leaks and malfunction.
– There is no function provided with this product to prevent foreign materials
and contaminants from getting into the hydraulic system and pipes.
3) Using the sealing tape
– Leave 1 or 2 turns on the screw and wrap it.
– Pieces of the sealing tape can lead to leaks and malfunction.
– When installing the piping, do so in a clean working
environment and follow directions faithfully so that foreign
materials do not get into the equipment.
4) Mounting the Unit
– For mounting on the main unit, put a bolt in each of the
mounting bolt holes and tighten them according to the torque in
the following chart. Tightening with greater torque than
recommended can depress the seating surface or burn the bolt.
Model
LM0360
LM0400
LM0480
LM0550
LM0650
LM0750
LJ0902
LJ1052
Mounting bolt nominal size
Tightening torque (N･m)
M4×0.7
3.2
M5×0.8
6.3
M5×0.8
6.3
M6
10.0
M6
10.0
M8
25.0
M10
58.8
M12
98.0
(4)When no more air is mixed in tighten the box nut back.
(5)Efficiency can be further improved by releasing air at the top
of the hydraulic pressure circuit and near the terminal
clamp.
(When using a gasket-type, install an air release valve
near the top of the hydraulic pressure circuit.
7) Speed adjustment
– Adjust the speed so that the total time for operation is one second
or more. If the clamp operates too fast the parts will wear out and
become damaged more quickly leading to equipment failure.
– Only adjust the speed after releasing the air from the circuit.
If air is mixed in the circuit you will not be able to accurately
adjust the speed.
– Turn the speed control valve gradually from the low-speed side
(small flow) to the high-speed side (large flow) to adjust the speed.
– It is recommended that you use hexagon socket head
cap bolts (12.9 tensile strength).
5) Mounting and removing the link lever
– When inserting the link pin, do not hit the pin directly with a hammer.
When using a hammer to insert the pin, always use a cover plate
with a smaller diameter than the snap ring groove on the pin.
8) Checking for looseness and additional tightening
– After initially installing the equipment the tightening force
of the bolts will drop due to initial breaking in.
Check for looseness and tighten the bolt when
necessary.
■Hydraulic Fluid List
6) Air release in the hydraulic pressure circuit
– Using the hydraulic pressure circuit with a large amount of air
still in it will cause operations to take an abnormally long time.
After installing the piping or if air is fed into the hydraulic tank
of the pump while it is empty, make sure to perform the
following procedures to release the air.
(1) Set the hydraulic pressure circuit supply pressure to 2 MPa or less.
(2)Loosen the box nut on the pipe joint nearest the link
clamp by one turn.
Remark: Some of the products in the chart are difficult to obtain overseas, so
if you are going to purchase them overseas contact the manufacturer.
KOSMEK LTD .
Cautions for Mounting
ISO viscosity grade: ISO-VG-32
Abrasion resisting hydraulic oil
General purpose oil
Manufacturer
Tellus Oil 32
Tellus Oil C32
Showa Shell Sekiyu
Super Multi 32
Idemitsu Kosan Daphne Super Hydraulic 32A
Super Highland 32
Super Mulpus 32
Eneos
Cosmo Hydro AW32
Cosmo New Mighty Super 32
Cosmo Oil
Hydrax 32
Lathus 32
Japan Energy (JOMO)
Nuto H32
Nuto 32
Esso
Mobil DTE24
Mobil DTE24 Light
ExxonMobil
Unit Oil WR32
Unit Oil P32
Kygnus
Fukkol Super Hydrol 32
Fukkol Hydrol DX32
Fuji Kosan
Hydrol AW32
Matsumura Oil
Sunvis 832
Sunvis 932
Sunoco
Hi-Tech AW32
Hydrax 32
Mitsui Oil
Hyspin AWS32
Castrol
16
Single-action link clamp
Cautions for Use
1) The product should be operated by persons with the
necessary knowledge and experience.
–Operation and maintenance of machines and systems which
use hydraulic pressure equipment should be performed by
persons with the necessary knowledge and experience.
2) Do not operate or remove equipment without first
ensuring your safety.
(1)Perform inspections and maintenance of the machines
and systems after making sure no objects will fall and
the equipment will not accidentally operate.
(2)When removing equipment, check to make sure the safety
precautions mentioned above have been taken and then
block the power source and the air to the hydraulic
pressure source. Remove the equipment after making
sure no pressure remains in the hydraulic pressure circuit.
(3)When removing equipment right after operation, the
equipment may still be hot, so wait until it cools off.
(4)When restarting the machine or system, make sure
the bolts and parts are secure and in place first.
3) Do not touch the link clamp
while it is being operated.
Your hand could get stuck
resulting in injury.
4) Do not take the equipment apart
or modify it.
–If the equipment is taken apart or modified the warranty
will be void, even within the warranty period.
Maintenance and inspection
1) Removing equipment and blocking pressure source
–When removing the equipment, make sure measures
have been taken to prevent the driven objects from
falling and to prevent accidental operation, then block
the power source and the air to the hydraulic pressure
source. Finally, remove the equipment after making sure
no pressure remains in the hydraulic pressure circuit.
3) When a coupler is used to disconnect the equipment, if it
is used for long periods of time air will enter the circuit,
so be sure to release the air periodically.
–When restarting the equipment, first make sure all the
bolts and parts are secure and in place.
5) Check to make sure the hydraulic fluid has not degraded.
2) Clean around the piston rod periodically.
–If the rod is used when the surface is dirty it could lead to
damage to the packing and sealing, malfunctions or oil leaks.
4) Inspect the equipment periodically to make sure the
pipes and mounting bolts/link pins are not loose.
6) Check to make sure operation is smooth without
abnormal sounds.
–In particular, if the equipment is not used for a long
period of time, when it is used again for the first time
make sure that it operates properly.
7) When storing the product, keep it out of direct sunlight in
a cool location where it is protected from water.
8) For overhaul and repairs, please contact us.
Warranty
Cautions for Handling
1) Warranty period
–The product warranty period is for 1.5 years after shipment
from our plant or 1 year of use, whichever is shorter.
17
(3)The user did not use or handle the product properly.
(including damages caused by a third party.)
(4)The cause was due to some factor other than our
product.
(5)The product was modified or repaired by another
company or was modified or repaired without our
approval or confirmation.
(6)The damage or defect was caused by natural disaster
or accident through no fault of our own.
(7)Parts and replacements necessary due to wear and tear
(rubber, plastic, sealant, certain electrical components,
etc.)
2) Warranty scope
–If the product is damaged or malfunctions during the
warranty period due to some fault of ours, we will replace
or repair the defective part at our expense. However,
defects or failures caused by the following are not
covered.
(1)Proper maintenance and inspections were not
performed.
(2)The product was used in an imperfect state at the
discretion of the user.
7MPa
Damages caused by defects in our products are not covered.
ht t p : / / w w w. k o s m ek.co.j p
Remarks
model
LM/LJ
Hydraulic Pressure Cylinder Speed Control Circuit and Cautions
！
When controlling the operating speed of hydraulic cylinders, design the hydraulic pressure circuit taking the following points into consideration.
If the circuit design is flawed, the equipment could be damaged or malfunction, so do a thorough review beforehand.
■Speed control circuit for single-action cylinder
In a spring return type single-action cylinder, if the flow rate in the
circuit is low at release the release operation can malfunction
(sticking and stopping) or take a long time to complete.
Use a flow regulating valve with check valve to control the
flow rate during the locking operation.
Also, as much as possible use a regulating valve on each
cylinder to control cylinders with speed restrictions (swing
clamps, workpiece supports, etc.).
If there is concern that load may be placed on the cylinder
in the direction of the release enough to break it during the
release, use a flow regulating valve with check valve to
control the flow rate on the release side as well. (the same
applies with swing clamps where the weight of the lever is
put on the cylinder during release).
However, design meter-out circuits taking the following points
into consideration.
(1)Generally speaking, in systems that use both double-action
and single-action cylinders, the same circuit should not be
used to control both.
The single-action cylinder release operation can
malfunction or take a long time to complete.
If both a single-action and double-action cylinder are used,
refer to the following circuit.
–Separate the control circuits.
Flow control on release side
W
■Speed control circuit for double-action cylinder
When controlling the speed of double-action cylinders, use
a meter-out circuit for both the lock and release sides.
With meter-in circuits air can get into the hydraulic pressure
circuit and prevent speed control.
–Ensure that the double-action cylinder control circuit is not
affected by the other.
However, depending on the tank line back pressure, the
single-action cylinder may operate after the double-action cylinder.
(2)With a meter-out circuit, depending on the flow rate the
pressure within the circuit may rise when the cylinder
operates. By using a flow regulating valve to keep the flow
rate to the cylinder low, you can prevent the pressure within
the circuit from rising. In particular, in systems with
sequence valves and pressure switches if the pressure
rises above the setting pressure the system will cease to
function properly, so attention is required.
【Meter-in Circuit】
Sequence valve
Flow regulating valve
(either possible)
KOSMEK LTD .
Hydraulic Pressure Cylinder Speed
Control Circuit and Cautions
【Meter-out Circuit】
18
h t t p : / / w w w. k o s m e k . c o . j p
1441 Branding Avenue,Suite 110 Downers Grove,IL 60515 USA
TEL.630-241-3465 FAX.630-241-3834
POLAND OFFICE: ul. Japońska 8
55-220 Jelcz-Laskowice, Poland
TEL.48-71-303-5400 FAX.48-71-303-5401
CAT.NO.LM001-03-02
Printed in Japan
2007.03. First 1Ry
2009.01. Third 1Ry