MHK2
Series
2/12/99 2:51 PM
Page 2
∗∗
Wedge Cam Operation Provides
Dust Cover for Adverse
Wedge Cam Operation Slide Guide
Air Gripper (2 Finger)
Mounting repeatability
Pin hole for positioning
on top side
Centering accuracy ±0.1mm
Auto switch mountable
Grooves for auto switch are located
on one side. Easy handling for
adjustment and installation.
Built-in adjustment needle
for finger speed
Possible to adjust the speed for
finger closing direction.
Wedge cam structure
The wedge structure allows no lateral
vibration along stroke direction once
work is held.
High rigidity
Slide type guide bearing enables
highly rigid finger motion.
High precision
Repeatability:
±0.01mm
Improved performance
Incorporation of dust cover prevents
dust, water, etc. from entering the
body and avoids generating dust
and releasing grease from air gripper.
3 types of dust covers are
available for use in different
environments.
Standard: Chloroprene rubber (CR) ······Black
Optional: Silicon rubber (Si) ···White
Fluoro rubber (FKM) ···Black
2 types of finger materials
are available for different
applications.
Standard: Carbon steel
Optional: Stainless steel
Longer strokes are now standard.
Bore size
(mm)
12
16
20
25
2.4-2
Opening/Closing stroke (mm)
Long stroke
Standard stroke
11
4
14
6
18
10
22
14
MHK2
Series
2/12/99 2:51 PM
Page 3
∗∗
High Precision and Rigidity.
Environmental Conditions.
Series MHK2
Applications
Assembly
Transfer
MHZ2
MHZJ2
Universal Mounting
Axial mounting
MHQ
Vertical mounting
MHL2
Loading/unloading work
into machine tools
MHR
MHK
(Body tapped)
MHS
(Body tapped)
Side mounting
MHC2
MHT2
MHY2
(Body tapped)
(Body through hole)
MHW2
Interchangeable with MHQG2
MRHQ
Variations
Parallel opening/closing
Series
Standard model
series MHK2
Long stroke model
series MHKL2
Model
Bore size
(mm)
Opening/Closing
stroke (mm)
MHK2-12l
12
4
MHK2-16l
16
6
MHK2-20l
20
10
MHK2-25l
25
14
MHKL2-12l
12
11
MHKL2-16l
16
14
MHKL2-20l
20
18
MHKL2-25l
25
22
Auto
switch
Options
Finger option
Carbon steel (Standard),
Stainless steel
Dust cover option
Chloroprene rubber (Standard)
Fluoro rubber
Silicon rubber
Auto Switch
Solid state switch
D-F9N(V), D-F9B(V)
Water resistant (2 color indication)
D-F9BA
2.4-3
MHK2
Series
2/12/99 2:51 PM
Page 4
∗∗
Wedge Cam Operation
Slide Guide
Series MHK2
Air Gripper
(2 Finger)
ø12, ø16, ø20, ø25
How to Order
Standard
model
Long stroke
model
MHK 2
20 D 1 F
F9NL S
MHKL 2
20 D 1 F
F9NL S
Number of auto switches
Number of fingers
2
_
2 fingers
2
1
S
Bore size
12
16
20
25
12mm
16mm
20mm
25mm
Action
D Double acting
S Single (Normally open)
C Single (Normally closed)
Finger material
_
Carbon steel
Stainless steel
1
Dust cover material
_
F
S
Chloroprene rubber (CR)
Fluoro rubber (FKM)
Silicon rubber (Si)
Auto switch
_
Without auto switch (Built-in magnet)
Applicable auto switch
Solid state switch
Type
Special Electrical Indicator Wiring
function entry
light (Output)
_
Load
voltage
Auto switch symbol Lead wire length (mm)∗
Electrical entry
In-line
DC
AC
3 wire
F9NV F9N
(NPN)
5V
3 wire
12V
F9PV F9P
_
Grommet With (PNP) 24V
Perpendicular
0.5
(–)
2 wire
12V
_
F9BA
_
∗Lead wire length: 0.5m ...... – (Example) F9N
3m ......... L (Example) F9NL
Note) Be careful for the hysteresis of 2 color indication type D-F9BAL.
Refer to "Auto Switch Hysteresis" on p.2.4-16
Refer to p.2.11-1 for auto switch specifications.
2.4-4
Applicable
load
Relay,
PLC
F9BV F9B
Water resistant
(2 color indication)
3
(L)
Series
2/12/99 2:51 PM
Page 5
∗∗
Wedge Cam Operation Slide Guide
Air Gripper (2 Finger)
Series MHK2
Specifications
Air
Fluid
Double acting
Operating
pressure
Single
acting
0.1 to 0.6MPa
Normally open
0.25 to 0.6MPa
Normally closed
–10 to 60°C
Ambient and fluid temperature
±0.01mm
Repeatability
Not required
Lubrication
Double acting/Single acting
Action
Auto switch (Optional) Note)
Solid state switch (3 wire, 2 wire)
Note) Refer to p.2.11-1 for further information on auto switch specifications.
Symbol
Double acting Single acting
Normally open Normally closed
Options
Finger materials
Carbon steel (Standard), Stainless steel
Dust cover materials
Chloroprene rubber (CR) (Standard), Fluoro rubber (FKM), Silicon rubber (Si)
Model
Series MHK/Standard models
Action
Normally
open
Double
acting
L1
L2
Normally
closed
Single
acting
Max. operating Effective holding Opening/Closing Closed Open
Weight
frequency
force per finger
stroke (mm) distance distance (g)
(mm) (L1) (mm) (L2)
(c.p.m)
(N) Note)
(L2_L1)
External hold: 15
4
9
13
75
Internal hold: 16
External hold: 31
6
14.6
20.6 113
Internal hold: 36
External hold: 46
10
16
26
235
Internal hold: 56
External hold: 80
14
19
33
440
Internal hold: 86
Model
Bore size
(mm)
MHK2-12D
12
MHK2-16D
16
MHK2-20D
20
MHK2-25D
25
MHK2-12S
12
9
4
9
MHK2-16S
16
23
6
14.6
20.6
114
MHK2-20S
20
34
10
16
26
237
MHK2-25S
25
58
14
19
33
443
MHK2-12C
12
12
4
9
13
MHK2-16C
16
25
6
14.6
20.6
115
MHK2-20C
20
44
10
16
26
237
MHK2-25C
25
73
14
19
33
443
120
76
13
76
Series MHKL2/Long stroke models
Action
Normally
open
Double
acting
L1
L2
Ordeer
Mad
P.2.4-17
Single
acting
Normally
closed
MHK2
Max. operating Effective holding Opening/Closing Closed Open
Weight
frequency
stroke (mm) distance distance
force per finger
(g)
_L1)
(mm)
(L2)
(mm)
(L1)
Note
)
2
(c.p.m)
(L
(N)
External hold: 14
11
9
20
104
Internal hold: 16
External hold: 27
14
14.6
28.6 164
Internal hold: 30
External hold: 45
18
16
34
312
Internal hold: 53
External hold: 79
22
19
41
562
Internal hold: 90
Model
Bore size
(mm)
MHKL2-12D
12
MHKL2-16D
16
MHKL2-20D
20
MHKL2-25D
25
MHKL2-12S
12
9
11
9
MHKL2-16S
16
17
14
14.6
28.6 165
MHKL2-20S
20
32
18
16
34
314
MHKL2-25S
25
53
22
19
41
565
MHKL2-12C
12
11
11
9
20
105
MHKL2-16C
16
22
14
14.6
28.6 166
MHKL2-20C
20
40
18
16
34
314
MHKL2-25C
25
63
22
19
41
565
90
20
105
Note) At the pressure of 0.5MPa , when holding point L is 20mm.
Single acting nomally open: External holding force, Single acting nomally closed: Internal holding force
Refer to "Effective Holding Force" for the holding force at each holding position on p.2.4-7 to 2.4-11.
2.4-5
MHZ2
MHZJ2
MHQ
MHL2
MHR
MHK
MHS
MHC2
MHT2
MHY2
MHW2
MRHQ
Auto
switch
MHK2
Series
2/12/99 2:51 PM
Page 6
∗∗
Series MHK2
Construction
Double acting
@0
e
!8
!7
Single acting
w
o
Fingers open
Normally open
!9
t
y
!5
r
q
!6
u
i
!0
!1
!2
Fingers closed
Normally closed
!4
Component Parts
No.
q
w
e
r
t
y
u
Component Parts
Material
Note
No.
Description
Body
Aluminum alloy
Anodized
Needle Ass'y
Piston
Aluminum alloy
Anodized
Carbon steel
Heat treatment, Special treatment
Carbon steel
Heat treatment, Special treatment
Stainless steel SUS304
Optional
Cap
Aluminum alloy
Hard anodized
Piston bolt
Stainless steel
Rubber magnet
Synthetic rubber
i
o
!0
!1
!2
!3
!4
!5
Description
Cam
Finger
!3
Material
Note
Piano wire
N.O. spring
Plug
Brass
Electroless nickel plated
Exhaust plug
Brass
Electroless nickel plated
N.C. spring
Piano wire
Plug Ass'y
Brass
Electroless nickel plated
Exhaust plug A
Brass
Electroless nickel plated
Carbon steel
Nickel plated
C-shape snap ring
Replacement Parts: Seal Kits
No.
Description
Material
!6
!7
!8
!9
Seal kit
@0
CR(2)
Dust cover FKM(2)
Si(2)
NBR
Kit No.
MHK2-12
MHKL2-12
MHK12-PS
P3318105
P3318105-1
P3318105-2
P3318113
P3318113-1
P3318113-2
MHK2-16
MHKL2-16
MHK16-PS
P3318205
P3318205-1
P3318205-2
P3318213
P3318213-1
P3318213-2
MHK2-20
MHKL2-20
MHK20-PS
P3318305
P3318305-1
P3318305-2
P3318313
P3318313-1
P3318313-2
Note 1) No. !6 to !9 are supplied in one unit for each seal kit. Designate the part number for each bore size when ordering.
CR: Chloroprene rubber, FKM: Fluoro rubber, Si: Silicon rubber.
2.4-6
MHK2-25
MHKL2-25
MHK25-PS
P3318405
P3318405-1
P3318405-2
P3318413
P3318413-1
P3318413-2
Series
2/12/99 2:51 PM
Page 7
∗∗
Wedge Cam Operation Slide Guide
Air Gripper (2 Finger)
Series MHK2
Example of Model Selection
Procedures
Check conditions
Select a model from the holding force graph
Calculate required holding force
Select possible points according to the work length
Work form:
Diameter X length
ø28 X 35mm round bar
Work diameter: From dimensions of model
that has opening width 28mm or more.
MHK2-25D
MHKL2-16D
MHKL2-20D
MHKL2-25D
MHKL2-20D External holding force
Although the condition differs according to
the coefficient of friction between the attachment
and work, select a model that can produce a
holding force 10 to 20 times the work weight.
Further allowance should be provided when
greater acceleration or impact forces are
expected during work transfer.
Ex.) For setting the holding force to be at least
20 times the work weight:
Required holding force = 0.17kg x 20 x 9.8m/s2
≅ 33N
Holding method: External hold
60
Holding force (N)
Guidelines on model selection
according to work weight
Work weight: 0.17 kg
Pressure 0.6MPa
50
0.5MPa
41 40
0.4MPa
30
0.3MPa
20
10
0
0.2MPa
20
40
60
80
Holding point L (mm)
When MHKL2-20D is selected, the
holding force is determined to be
41N according to the holding point
distance 40mm and the pressure
(0.5MPa).
The holding force is 24.5 times the
work weight meeting the guideline
that holding force should be more
than 20.
Holding point 40mm
MHZ2
Operating pressure: 0.5MPa
MHZJ2
Holding Point
External hold
MHQ
Internal hold
Series MHK
Series MHK
Series MHKL
MHL2
Series MHKL
MHR
MHK
Holding
point
Holding
point
L
H
H
H
H
MHS
Holding
point
L
Holding
point
L
L
MHC2
L: Distance to the holding point
H: Overhang distance
MHT2
Proper holding points should be selected in accordance with the operating pressure.
The distance to the holding point L and the overhang distance H should be within the
limited range shown in the graph below.
When the work holding point is out of range, the unbalanced load applied to the finger
and the guide section may cause excessive play in fingers and have an adverse effect on the gripper life.
MHY2
MHW2
MRHQ
Limitations of Holding Point
50
40
30
Pr
es
su
re
0.
0.
3M
2M
Pa
0.
P
0. 4MP a
0. 5MP a
6M a
10
Pa
0
10 20 30 40 50 60
20
Holding point L (mm)
60
50
40
30
20
10
0
Pr
es
su
re
0.
0.
2M
Pa
0. 3M
0. 4MP Pa
5M a
0.
6M Pa
Pa
10 20 30 40 50 60
Holding point L (mm)
100
80
Pr
es
60
40
20
0
su
re
0.
0.
0. 3M
0. 4M Pa
0. 5M Pa
6M Pa
Pa
20
Auto
switch
MHK2-25l
MHKL2-25l
40
2M
Pa
60
80
100
Holding point L (mm)
Overhang distance H (mm)
60
MHK2-20l
MHKL2-20l
Overhang distance H (mm)
MHK2-16l
MHKL2-16l
Overhang distance H (mm)
MHK2-12l
MHKL2-12l
Overhang distance H (mm)
MHK2
120
100
80
60
40
20
0
Pr
es
su
re
0.
2M
Pa
0.
0. 3M
0. 4M Pa
0. 5M Pa
6M P
Pa a
20 40 60 80 100 120
Holding point L (mm)
Note) Distance to the holding point L of single acting type is shortened end by spring return.
Use air gripper within holding force line shown for each pressure in effective holding force graph.
2.4-7
Series
2/12/99 2:51 PM
Page 8
∗∗
Series MHK2
Effective Holding Force: Series MHK2 double acting
External Holding Force
MHK2-12D
MHK2-12D
F
Holding force (N)
20
F
Internal Holding Force
25
Pressure 0.6MPa
15
0.5MPa
0.4MPa
10
0.3MPa
Holding force (N)
Indication of effective holding force
The holding force shown in the tables
represents the holding force of one finger
when all fingers and attachments are in
contact with the work.
Pressure 0.6MPa
20
0.5MPa
15
0.4MPa
10
0.3MPa
5
5
0.2MPa
0.2MPa
0
20
10
30
0
50
40
Series MHK2
L
L
MKH2-16D
MHK2-16D
50
50
0.5MPa
30
0.4MPa
20
40
0.3MPa
40
0.5MPa
30
0.4MPa
20
0.3MPa
10
10
0.2MPa
0
50
Pressure 0.6MPa
Pressure 0.6MPa
40
30
Holding point L(mm)
Holding force (N)
Internal hold
Holding force (N)
External hold
Series MHK2
20
10
Holding point L(mm)
10
20
30
40
50
0.2MPa
0
60
10
20
Holding point L(mm)
30
40
50
60
Holding point L(mm)
MHK2-20D
MHK2-20D
80
70
Pressure 0.6MPa
50
40
0.5MPa
30
0.4MPa
0.3MPa
20
10
0
20
40
Holding force (N)
Holding force (N)
60
50
0.5MPa
40
0.4MPa
30
0.3MPa
20
0.2MPa
10
80
0
60
Pressure 0.6MPa
60
0.2MPa
20
Holding point L(mm)
80
120
80
0.5MPa
60
0.4MPa
40
0.3MPa
20
0.2MPa
0
40
60
80
Holding point L(mm)
100
Holding force (N)
Pressure 0.6MPa
2.4-8
60
MHK2-25D
100
20
40
Holding point L(mm)
MHK2-25D
Holding force (N)
MHK2
100
Pressure 0.6MPa
80
0.5MPa
60
0.4MPa
0.3MPa
40
20
0
0.2MPa
20
40
60
80
Holding point L(mm)
100
Series
2/12/99 2:51 PM
Page 9
∗∗
Wedge Cam Operation Slide Guide
Air Gripper (2 Finger)
Series MHK2
Effective Holding Force: Series MHKL2 Double acting
External Holding Force
MHKL2-12D
F
Holding force (N)
20
F
Internal Holding Force
MHKL2-12D
25
Pressure 0.6MPa
15
0.5MPa
0.4MPa
10
0.3MPa
Holding force (N)
Indication of effective holding force
The holding force shown in the tables
represents the holding force when all fingers
and attachments are in contact with the work.
5
Pressure 0.6MPa
20
0.5MPa
15
0.4MPa
10
0.3MPa
5
0.2MPa
0
20
10
30
40
0.2MPa
0
50
External hold
Series MHKL2
Internal hold
Series MHKL2
MHKL2-16D
40
Pressure 0.6MPa
30
0.5MPa
20
0.4MPa
0.3MPa
40
Pressure 0.6MPa
30
0.5MPa
0.3MPa
10
10
20
30
40
50
0
60
MHZ2
0.4MPa
20
0.2MPa
0.2MPa
0
50
50
Holding force (N)
Holding force (N)
40
MHKL2-16D
10
10
20
Holding point L(mm)
30
40
50
60
Holding point L(mm)
MHKL2-20D
70
0.5MPa
40
0.4MPa
30
0.3MPa
20
Holding force (N)
Pressure 0.6MPa
0
MHK
60
Pressure 0.6MPa
50
0.5MPa
40
0.3MPa
10
20
40
60
0
80
0.2MPa
20
Holding point L(mm)
60
80
MHC2
MHT2
MHY2
MHKL2-25D
MHW2
100
Pressure 0.6MPa
0.5MPa
60
0.4MPa
40
0.3MPa
0.2MPa
20
Holding force (N)
120
80
0
40
Holding point L(mm)
MHKL2-25D
MHS
0.4MPa
30
20
0.2MPa
10
MHQ
MHR
80
50
MHZJ2
MHL2
MHKL2-20D
60
Holding force (N)
L
30
Holding point L(mm)
50
L
20
10
Holding point L(mm)
Holding force (N)
MHK2
100
Pressure 0.6MPa
80
0.4MPa
40
0.3MPa
20
20
40
60
80
Holding point L(mm)
100
Auto
switch
0.5MPa
60
0
0.2MPa
20
40
60
80
MRHQ
100
Holding point L(mm)
2.4-9
Series
2/12/99 2:51 PM
Page 10
∗∗
Series MHK2
Effective Holding Force: Series MHK2 Single acting
Indication of effective holding force
The holding force shown in the tables represents
the holding force when all fingers and
attachments are in contact with the work. F = one
finger thrust.
External Holding Force
MHK2-12S
Internal Holding Force
MHK2-12C
20
F
Holding force (N)
F
Holding force (N)
15
Pressure 0.6MPa
10
0.5MPa
0.4MPa
5
0
20
10
30
40
Pressure 0.6MPa
15
0.5MPa
10
0.4MPa
5
0.3MPa
Note) In case of single acting type,
the value is for stroke center.
0
50
0.3MPa
40
L
Pressure 0.6MPa
0.5MPa
20
0.4MPa
10
0
Model
Allowable moment
Nm
MHK2-12S, C
0.05
MHK2-16S, C
0.12
MHK2-20S, C
0.25
MHK2-25S, C
0.49
30
40
50
0.5MPa
20
0
60
0.4MPa
0.3MPa
10
20
30
40
50
60
Holding point L(mm)
MHK2-20S
MHK2-20C
80
60
Holding force (N)
Allowable moment
20
50
Pressure 0.6MPa
Holding point L(mm)
Precautions when using the single acting type:
If a moment such as that illustrated below is applied
to the finger, the finger might not be able to retract by
the spring force alone. Therefore, make sure to use
the air gripper within the allowable moment that is
indicated in the table below.
10
40
30
10
0.3MPa
70
Holding force (N)
L
Holding force (N)
MHK2-16C
40
30
30
Holding point L(mm)
MHK2-16S
Internal hold
Series MHK2
Holding force (N)
External hold
Series MHK2
20
10
Holding point L(mm)
50
40
Pressure 0.6MPa
30
0.5MPa
0.4MPa
20
Pressure 0.6MPa
40
0.5MPa
30
0.4MPa
0.3MPa
10
0
M: Allowable moment
(M = WL)
60
50
20
0.3MPa
10
20
40
60
0
80
20
Holding point L(mm)
40
60
80
Holding point L(mm)
W
MHK2-25S
MHK2-25C
M
100
L
80
Pressure 0.6MPa
60
0.5MPa
40
0.4MPa
0.3MPa
20
0
20
40
60
80
Holding point L(mm)
2.4-10
100
Holding force (N)
100
Holding force (N)
MHK2
80
Pressure 0.6MPa
60
0.5MPa
0.4MPa
40
0.3MPa
20
0
20
40
60
80
Holding point L(mm)
100
Series
2/12/99 2:51 PM
Page 11
∗∗
Series MHK2
Wedge Cam Operation Slide Guide
Air Gripper (2 Finger)
Effective Holding Force: Series MHKL2 Single acting
Indication of effective holding force
The holding force shown in the tables
represents the holding force of one finger
when all fingers and attachments are in
contact with the work.
External Holding Force
Internal Holding Force
MHKL2-12C
MHKL2-12S
20
F
Holding force (N)
F
Holding force (N)
15
Pressure 0.6MPa
10
0.5MPa
0.4MPa
5
15
Pressure 0.6MPa
0.5MPa
10
0.4MPa
5
0.3MPa
0.3MPa
Note) In case of single acting type,
the value is for stroke center.
0
20
10
30
40
0
50
10
Holding point L(mm)
Internal hold
Series MHKL2
40
50
40
Holding force (N)
L
30
MHKL2-16C
40
Holding force (N)
L
20
Holding point L(mm)
MHKL2-16S
External hold
Series MHKL2
30
Pressure 0.6MPa
20
0.5MPa
0.4MPa
10
30
Pressure 0.6MPa
0.5MPa
20
MHZ2
0.4MPa
10
0.3MPa
MHZJ2
0.3MPa
0
10
20
Allowable moment
Nm
MHKL2-12S, C
0.05
MHKL2-16S, C
0.12
MHKL2-20S, C
0.25
MHKL2-25S, C
0.49
0
60
L
30
40
50
60
MHR
70
50
40
Pressure 0.6MPa
30
0.5MPa
20
0.4MPa
MHK
60
50
Pressure 0.6MPa
40
0.4MPa
0.3MPa
20
MHC2
10
20
40
60
0
80
20
Holding point L(mm)
40
60
80
Holding point L(mm)
MHKL2-25S
MHW2
100
80
60
Pressure 0.6MPa
0.5MPa
40
0.4MPa
0.3MPa
20
0
20
40
60
80
Holding point L(mm)
100
MRHQ
80
Pressure 0.6MPa
60
0.5MPa
40
0.4MPa
0.3MPa
20
0
MHT2
MHY2
MHKL2-25C
100
MHS
0.5MPa
30
0.3MPa
10
MHQ
MHL2
80
0
M
20
MHKL2-20C
60
M: Allowable moment
(M = WL)
W
10
Holding point L(mm)
Holding force (N)
Model
50
Holding force (N)
Allowable moment
40
MHKL2-20S
Holding force (N)
If a moment such as that illustrated below is applied
to the finger, the finger might not be able to retract by
the spring force alone. Therefore, make sure to use
the air gripper within the allowable moment that is
indicated in the table below.
30
Holding point L(mm)
Precautions when using the single acting type:
Holding force (N)
MHK2
20
40
60
80
100
Holding point L(mm)
2.4-11
Auto
switch
Series
2/12/99 2:51 PM
Page 12
∗∗
Series MHK2
Dimensions
9
MHK2-12l/Standard model
2-M3 X 0.5 thread depth 4
(Mounting thread)
15
ø13H9
+0.043
0
2-M3 X 0.5 thread depth 6
(Mounting thread)
1.5 deep
+1.2
0
0
-0.2
Closed 9
84
20
34
32.6
22
28
Bottom hole dia. 3.4 through (Mounting hole)
22
15
ø3H9
31
+0.025
3
0
depth 3
depth
13
63
10 ± 0.02
0
5 -0.1
4-M4 X 0.7 thread depth 8 (Mounting thread)
Open 13
+0.025
0
3H9
20 ± 0.05
Groove position for auto switch mounting
4-M3 X 0.5 (Thread for mounting attachment)
M3 X 0.5 (Finger closing port)
Groove position for auto switch mounting
(2 positions)
6 -0.05
ø4
S
9.4
11.6
3
Adjustment needle for finger speed
7
0
4
7
Note) For single acting,
one port is used
as bleed port.
17.5
M3 X 0.5 (Finger opening port)
2.3
9
MHKL2-12l/Long stroke model
20
2-M3 X 0.5 thread depth 5
(Mounting thread)
3H9
8 4
20
43
41.6
30
22
0
26
15
ø3H9
36
+0.025
0
depth 3
13
20 ± 0.05
76
4-M3 X 0.5 (Thread for mounting attachment)
Groove position for auto switch mounting
M3 X 0.5 (Finger closing port)
Adjustment needle for finger speed
7
21
Note) For single acting,
one port is used
as bleed port.
11.6
3
(2 positions)
ø4
7
M3 X 0.5 (Finger opening port)
Groove position for auto switch mounting
9.4
S
0
4
2.3
2.4-12
+0.025
depth
0
3
2-M3 X 0.5 thread depth 6
(Mounting thread)
1.5
Bottom hole dia. 3.4 through (Mounting hole)
Closed 9 -0.2
+1.2
Open 20 0
+0.043
depth
0
10 ± 0.02
0
5 -0.1
4-M4 X 0.7 thread depth 8 (Mounting thread)
ø13H9
57
6 -0.05
MHK2
Series
2/12/99 2:51 PM
Page 13
∗∗
Wedge Cam Operation Slide Guide
Air Gripper (2 Finger)
Series MHK2
14
MHK2-16l/Standard model
2-M4 X 0.7 thread depth 4
(Mounting thread)
16
3H9
0
5 -0.1
4-M4 X 0.7 thread depth 8 (Mounting thread)
Bottom hole ø3.4 through (Mounting hole)
ø17H9
+0.043
0
+0.025
0
depth 3
2-M4 X 0.7 thread depth 8
depth 1.5
0
-0.2
Closed 14.6
10 4
43
45
22
12 ± 0.02
+1.2
0
Open 20.6
24
30.6
(Mounting thread)
24.5
15
33
ø3H9
+0.025
0
depth 3
15
23.6 ± 0.05
67.3
4-M3 X 0.5 (Thread for mounting attachment)
Groove position for auto switch mounting
M5 X 0.8 (Finger closing port)
Groove position for auto switch mounting
(2 positions)
MHZ2
ø4
0
8 -0.05
0
13
S
13.6
3
Adjustment needle for finger speed
7
4
MHZJ2
Note) For single acting,
one port is used
as bleed port.
7
18
MHQ
2.3
M5 X 0.8 (Finger opening port)
MHL2
MHKL2-16l/Long stroke model
MHR
14
MHK
2-M4 X 0.7 thread depth 5
MHS
22
(Mounting thread)
3H9
0
5 -0.1
4-M4 X 0.7 thread depth 8 (Mounting thread)
Bottom port ø3.4 through (Mounting hole)
ø17H9
+0.043
0
3
2-M4 X 0.7 thread depth 8
depth 1.5
(Mounting thread)
MHC2
10 4
28
15
ø3H9
38.5
+0.025
0
MHY2
12 ± 0.02
22
54
56
24
34
0
Closed 14.6 -0.2
+1.2
0
Open 28.6
+0.025
depth
0
MHT2
depth 3
MHW2
MRHQ
15
63
23.6 ± 0.05
83
4-M3 X 0.5 (Thread for mounting attachment)
Auto
switch
Groove position for auto switch mounting
M5 X 0.8 (Finger closing port)
13
S
ø4
O
4
Groove position for auto switch mounting
(2 position)
13.6
3
Adjustment needle for finger speed
0
8 -0.05
MHK2
7
M5 X 0.8 (Finger opening port)
7
22.5
Note) For single acting,
one port is used
as bleed port.
2.3
2.4-13
Series
2/12/99 2:51 PM
Page 14
∗∗
Series MHK2
Dimensions
18.6
MHK2-20l/Standard model
2-M5 X 0.8 thread depth 8
(Mounting thread)
20
+0.030
0
4H9
ø21H9
+0.052
0
depth 4
2-M5 X 0.8 thread depth 10
(Mounting thread)
depth 1.5
0
-0.2
Closed 16
ø4H9
40
+0.030
0
13.5
32
58
60
29
21
16 ± 0.02
+1.2
0
Open 26
30
42
5
0
8 -0.1
4-M5 X 0.8 thread depth 10 (Mounting thread)
Bottom hole ø4.3 through (Mounting hole)
depth 4
18
84.8
27.6 ± 0.05
4-M4 X 0.7
(Thread for mounting attachment)
M5 X 0.8 (Finger closing port)
Groove position for auto switch mounting
Adjustment needle for finger speed
Note) For single acting,
one port is used
as bleed port.
7.5
10
ø4
0
-0.05
O
15
3
15
S
Groove position for auto switch mounting
(2 positions)
9
5
21
M5 X 0.8 (Finger opening port)
2.5
18.6
MHKL2-20l/Long stroke model
2-M5 X 0.8 thread depth 8
(Mounting thread)
24
4H9
ø21H9
+0.052
depth
0
1.5
+0.030
0
depth1.5
2-M5 X 0.8 thread depth 10
(Mounting thread)
13.5
16 ± 0.02
32
68
0
-0.2
Closed 16
Open 34
+1.2
0
30
46
70
5
0
8 -0.1
4-M5 X 0.8 thread depth 10 (Mounting thread)
Bottom hole ø4.3 through (Mounting hole)
32
44.5
20
ø4H9
+0.030
depth
0
4
18
27.6 ± 0.05
73.5
100
Groove position for auto switch mounting
M5 X 0.8 (Finger closing port)
Adjustment needle for finger speed
M5 X 0.8 (Finger opening port)
ø4
15
S
9
O
5
Groove position for auto switch mounting
(2 positions)
15
3
4-M4 X 0.7
(Thread for mounting attachment)
0
10 -0.05
MHK2
7.5
26.5
Note) For single acting,
one port is used
as bleed port.
2.5
2.4-14
Series
2/12/99 2:51 PM
Page 15
∗∗
Series MHK2
Wedge Cam Operation Slide Guide
Air Gripper (2 Finger)
22
MHK2-25l/Standard model
2-M6 X 1thread depth 10
(Mounting thread)
4H9
22
ø26H9
+0.030
0
depth 4
2-M6 X 1 thread depth 12
(Mounting thread)
depth 1.5
17.5
74
40
20 ± 0.02
0
-0.2
Closed 19
36
52
+1.2
0
Open 33
71.6
5
0
10 -0.1
4-M6 X 1thread depth 12 (Mounting thread)
Bottom hole ø5.1 through (Mounting hole)
+0.052
0
30
26
+0.030
depth
0
47.2
ø4H9
4
102.7
22
33.6 ± 0.05
4-M5 X 0.8
(Thread for mounting attachment)
M5 X 0.8 (Finger closing port)
Groove position for auto switch mounting
Adjustment needle for finger speed
MHZ2
0
6
12
MHZJ2
ø4
16
12 -0.05
O
20
3
S
Groove position for auto switch mounting
(2 positions)
Note) For single acting,
one port is used
as bleed port.
8
23
M5 X 0.8 (Finger opening port)
MHQ
MHL2
2.3
MHKL2-25l/Long stroke model
MHR
22
MHK
MHS
2-M6 X 1 thread depth 10
(Mounting thread)
4H9
30
ø26H9
+0.052
0
depth 1.5
0
10 -0.1
+0.030
0
depth 4
2-M6 X 1 thread depth 12
(Mounting thread)
4-M6 X 1 depth 12 (Mounting thread)
MHC2
Closed 19
17.5
40
84
MHY2
38
ø4H9
53.5
25
+0.030
0
MHT2
depth 4
22
MHW2
20 ± 0.02
0
-0.2
36
56
+1.2
0
Open 41
81.6
5
Bottom hole ø5.1 through (Mounting hole)
MRHQ
33.6 ± 0.05
88.5
121
Auto
switch
Groove position for auto switch mounting
4-M5 X 0.8
(Thread for mounting attachment)
M5 X 0.8 (Finger closing port)
Adjustment needle for finger speed Groove position for auto switch mounting
0
6
ø4
16
20
3
(2 positions)
12 -0.05
MHK2
12
8
M5 X 0.8 (Finger opening port)
30
Note) For single acting,
one port is used
as bleed port.
2.3
2.4-15
Series
2/12/99 2:51 PM
Page 16
∗
Series MHK2
Auto Switch Hysteresis
Setting Method of Auto Switch
Similarly to micro switch, auto switch have hysteresis. The values in the
following tables are criteria for switch position control etc.
To set the auto switch, insert the auto switch into the switch groove of the
air gripper from the direction indicated in the following drawing. After
setting the position, tighten the attached switch mounting set screw with a
straight bladed switchmakers screwdriver.
Screwdriver
ø5 to ø6
Switch mounting screw
M2.5 X 4 l
Hysteresis
Auto switch
Switch operating position (ON)
Switch reset position (OFF)
Max. hysteresis mm
Au
to
sw
itc
h
D-F9BAL
D-F9N(V)
F9B(V)
Model
ON: Red light
emitting diode
ON: Green light
emitting diode
MHKl2-12
0.4
0.4
1.6
MHKl2-16
0.4
0.4
1.6
MHKl2-20
0.4
0.4
1.6
MHKl2-25
0.4
0.4
1.6
Note) Use a screwdriver with a grip diameter of 5 to 6mm to tighten the auto
switch mounting screw. The tightening torque should be about 0.05 to
0.1Nm. When you begin to feel that the screw is being tightened, turn it
further by 90°.
Protrusion of Auto Switch from Edge of Body
The protrusion of an auto switch from the edge of the body in the table below.
Use the table as a guideline for mounting.
Electrical entry:
Vertical type
L
L
Electrical entry:
Lateral type
When auto switch for MHK2, MHKL2 is
set on mounting side as figure below,
allow for at least 1mm on mounting
plate since the auto switch is protruded
from edge of gripper.
Space
L
MHK2
1mm or more
S
O
Unit: mm
Electrical entry
Air gripper
Finger po
MHK2-12l
MHK2-16l
MHK2-20l
MHK2-25l
MHKL2-12l
MHKL2-16l
MHKL2-20l
MHKL2-25l
Auto sw
sition
itch typ
In-line entry
D-F9N
D-F9B
D-F9BA
D-F9NV
D-F9BV
Open
—
2
7
—
—
Closed
Open
3
7
12
—
—
—
2
6
—
—
Closed
3
8
13
1
1
Open
—
—
1
—
—
e
Closed
1
5
11
—
—
Open
—
—
—
—
—
Closed
2
6
12
—
—
Open
—
—
3
—
—
Closed
Open
3
7
12
—
—
—
—
1
—
—
Closed
3
8
13
1
1
Open
—
—
—
—
—
Closed
Open
1
6
11
—
—
—
—
—
—
—
Closed
1
6
11
—
—
Note) There is no protrusion if no values are entered in the table.
2.4-16
Perpendicular entry
Series
2/12/99 2:51 PM
Page 17
∗∗
Series MHK2
Made to Order
Ordeer
Mad
Contact SMC for the details on dimensions, specifications, and delivery.
1
3
Oil-proof
MHK L 2
Cylinder bore D
1 F X5
With grease needle
MHK L 2
Cylinder bore D
1
F
Finger material
Dust cover material
Action
Finger material
Action
The packing class has been revised to adopt oil-proof materials for
use in an environment with splashing of cutting oil, etc.
Lubrication from grease needle to interior is possible.
Specifications
Specifications
Oil-proof
Type
Bore size (mm)
Action
12, 16, 20, 25
Double acting, Single acting (normally open/normally closed)
Fluid
Bore size (mm)
Action
Dust cover, Seal, Gasket-fluoro rubber
Applicable auto switch
With grease needle
Type
16, 20, 25
Double acting, Single acting (normally open/normally closed)
Fluid
Air
Material
X39
Air
Notes) Lubrication:
Fill lubricant to the bearring via magazine pocket so that foreign
particles are not mixed in.
Fine quality lithium soap grease (no. 2) for grease is recommended.
The dimensions are the same as the standard type.
D-F9BAL
Notes) Some liquid may make the use of an air gripper or auto switch impossible.
Confirm liquid and consult SMC for the use.
The dimensions are the same as the standard type.
MHZ2
2
4
Thermal proof
MHK L 2
Cylinder bore D
Grooves for auto switch on both sides
MHQ
Finger material
Dust cover material
MHL2
Action
Finger material
MHK L 2
Cylinder bore D
1
Possible to select the auto switch mounting side.
Specifications
Specifications
Type
Thermal proof
Type
Bore size (mm)
12, 16, 20, 25
Bore size (mm)
Double acting, Single acting (normally open/normally closed)
Fluid
Air
Material
F
MHR
Action
The packing class has been revised to adopt thermal proof
materials for use at high temperature of up to 100°C.
Action
MHZJ2
X41
1 F X4
Action
MHK
MHS
Both sides grooves for auto switch mounting
12, 16, 20, 25
Double acting, Single acting (normally open/normally closed)
Fluid
Air
Additional switch grooves
Notes) Items with auto switch cannot be manufactured.
The dimensions are the same as the standard type.
Groove position of
auto switch
MHC2
MHT2
Dust cover, Seal, Gasket - fluoro rubber
MHY2
MHW2
A
MHK2
Model
A
B
B
MHK2-12l 10.4 1.8
MHK2-16l 12.8 1.6
Standard switch grooves Dimensions A and B other models
are same as standard switch grooves.
2.4-17
MRHQ
Auto
switch