Parallel Opening And Closing Gripper MHF2

MHF2 Parallel Opening And Closing Gripper has low profile design that reduces moment generation. Short, middle, and long strokes are available. Compact, but the double piston mechanism provides it with a strong gripping force.Reduced height of approx. 1/3 of that of the standard gripper.

Bore: 8, 12, 16, 20mm
Motion Pattern: Double-acting
Working Medium: Air
Lubrication: Non-lube
Ambient and fluid temperature: -10~+60°C

Product Images

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Product Specifications
Product Details
Size Weight
Related Data
Product Video

Model and Meaning

Applicable Auto Switches

Type

Special functions

Electrical entry

Indicator light

Wiring
(Output)

Load voltage

Auto switch model

Lead wire length (m)*

Pre-wired
connector

Applicable load

Perpendicular

In-line

0.5
(Nil)

1
(M)

3
(L)

5
(Z)

Solid state auto switch

Grommet

Yes

3-wire (NPN)

24V

5V,12V

M9NV

M9N

●

○

IC circuit

Relay, PLC

3-wire (PNP)

M9PV

M9P

●

○

2-wire

12V

M9BV

M9B

●

○

Diagnostic indication
(2-color indicator)

3-wire (NPN)

5V,12V

M9NWV

M9NW

●

○

IC circuit

3-wire (PNP)

M9PWV

M9PW

●

○

2-wire

12V

M9BWV

M9BW

●

○

Water resistant
(2-color indicator)

3-wire (NPN)

5V,12V

**M9NAV

**M9NA

○

●

○

IC circuit

3-wire (PNP)

**M9PAV

**M9PA

○

●

○

2-wire

12V

**M9BAV

**M9BA

○

●

○

** Water resistant type auto switches can be mounted on the above models, but in such case SMC cannot guarantee water resistance.
* Lead wire length symbols: 0.5m……………Nil (Example) M9NW
1m…………… M (Example) M9NWM
3m…………… L (Example) M9NWL
5m…………… Z (Example) M9NWZ
* Auto switches marked with "○" are made to order specification.
Note) When using the 2-color indicator type, please make the setting so that the indicator is lit in red to ensure the detection at the proper position of the air gripper.

Specifications

Fluid		Air
Operating pressure		ø8 : 0.15~0.7MPa
		ø12~20 : 0.1~0.7MPa
Ambient and fluid temperature		-10~60℃ (with no condensation)
Repeatability		Note 1) ±0.05mm
Maximum operating frequency	Short stroke	120c.p.m.
	Medium stroke	120c.p.m.
	Long stroke	60c.p.m.
Lubrication		Not required
Action		Double acting
Auto switch (Option)		Solid state auto switch (3-wire, 2-wire)

Note 1) This is the value when no offset load is applied to the finger.
When an offset load is applied to the finger, the maximum value is ±0.15 mm due to the influence of backlash of the rack and pinion.

Model

Action	Model	Bore (mm)	Gripping force (Note 1)	Opening/closing stroke (both sides) mm	Weight (g) (Note 2)	Unobstructed capacity (cm³)
Action	Model	Bore (mm)	Effective gripping force per finger N	Opening/closing stroke (both sides) mm	Weight (g) (Note 2)	Finger open side	Finger close side
Double acting	MHF2-8D	8	19	8	65	0.7	0.6
	MHF2-8D1			16	85	1.1	1.0
	MHF2-8D2			32	120	2.0	0.9
	MHF2-12D	12	48	12	155	1.9	1.6
	MHF2-12D1			24	190	3.3	3.0
	MHF2-12D2			48	275	6.1	5.8
	MHF2-16D	16	90	16	350	4.9	4.1
	MHF2-16D1			32	445	8.2	7.4
	MHF2-16D2			64	650	14.9	14.0
	MHF2-20D	20	141	20	645	8.7	7.3
	MHF2-20D1			40	850	15.1	13.7
	MHF2-20D2			80	1225	28.0	26.6

Note 1) At the pressure of 0.5 MPa, when gripping point L is 20 mm.
Note 2) Excluding the auto switch weight.

Symbol

Made to Orde

Symbol	Specifications/Description
-X4	Heat resistance (100℃)
-X5	Fluororubber seal
-X50	Without magnet
-X53	EPDM seal/Fluorine grease
-X63	Fluorine grease
-X79	Grease for food processing machines, Fluorine grease
-X79A	Grease for food processing machines
-X81A	Anti-corrosive treatment of finger
-X81B	Anti-corrosive treatment of finger, guide and joint
-X83	With an adjustable opening/closing finger positioning

Structure Drawing

Component Parts

No.	Description	Material	Note	No.	Description	Material	Note
1	Body	Aluminum alloy	Hard anodized	11	Head damper	Urethane rubber
2	Piston	Stainless steel		12	Clip	Stainless steel wire
3	Joint	Stainless steel	Heat treatment	13	Rack	Stainless steel	Nitriding
4	Guide rail	Stainless steel	Heat treatment	14	Magnet	-	Nickel plated
5	Finger	Stainless steel	Heat treatment	15	Steel balls	High carbon chromium bearing steel
6	Roller stopper	Stainless steel		16	Wear ring	Synthetic resin
7	Pinion	Carbon steel	Nitriding	17	Roller	High carbon chromium bearing steel
8	Cap A	Aluminum alloy	Clear anodized	18	Needle roller	High carbon chromium bearing steel
9	Cap B	Aluminum alloy	Clear anodized	19	Parallel pin	Stainless steel
10	Cap C	Aluminum alloy	Clear anodized	20	Piston seal	NBR
				21	Gasket	NBR

Replacement Parts

Description	Kit Model			Contents
Description	MHF2-8D	MHF2-8D1	MHF2-8D2	Contents
Seal kit	MHF8-PS	MHF8-PS-1	MHF8-PS-2	12, 20, 21
Finger assembly	MHF-A0802	MHF-A0802-1	MHF-A0802-2	3,4,5,6,15,17,19 Mounting screw

Replacement part/Grease pack part model:
Guide unit: GR-S-010 (10g)
Cylinder unit: GR-L-005 (5g)

Bolts for Body Through-hole Mounting

Part Model	Number of pieces
MHF-B08	MHF2-8D	2 pieces/unit
	MHF2-8D1	2 pieces/unit
	MHF2-8D2	4 pieces/unit

* The bolts for body through-hole mounting are attached to the product. They are also provided at an order of 1 piece or more with the above part numbers.

Component Parts

No.	Description	Material	Note	No.	Description	Material	Note
1	Body	Aluminum alloy	Hard anodized	13	Magnet	−	Nickel plated
2	Piston	Stainless steel		14	Steel balls	High carbon chromium bearing steel
3	Joint	Stainless steel	Heat treatment	15	Wear ring	Synthetic resin
4	Guide rail	Stainless steel	Heat treatment	16	ø12 : Roller	High carbon chromium bearing steel
5	Finger	Stainless steel	Heat treatment	16	ø16~20 : Parallel pin	Stainless steel
6	Roller stopper	Stainless steel		17	Needle roller	High carbon chromium bearing steel
7	Pinion	Carbon steel	Nitriding	18	ø12 : R shape retaining ring	Carbon steel	Phosphate coated
8	Cap A	Aluminum alloy	Clear anodized	18	ø16~20 : Type C retaining ring	Carbon steel	Phosphate coated
9	Cap B	Aluminum alloy	Clear anodized	19	Parallel pin	Stainless steel
10	Cap C	Aluminum alloy	Clear anodized	20	Piston seal	NBR
11	Head damper	Urethane rubber		21	Gasket	NBR
12	Rack	Stainless steel	Nitriding	22	Gasket	NBR

Replacement Parts

Description	Kit Model									Contents
Description	MHF2-12D	MHF2-12D1	MHF2-12D2	MHF2-16D	MHF2-16D1	MHF2-16D2	MHF2-20D	MHF2-20D1	MHF2-20D2	Contents
Seal kit	MHF12-PS	MHF12-PS-1	MHF12-PS-2	MHF16-PS	MHF16-PS-1	MHF16-PS-2	MHF20-PS	MHF20-PS-1	MHF20-PS-2	12, 20, 21
Finger assembly	MHF-A1202	MHF-A1202-1	MHF-A1202-2	MHF-A1602	MHF-A1602-1	MHF-A1602-2	MHF-A2002	MHF-A2002-1	MHF-A2002-2	3,4,5,6,15,17,19 Mounting screw

Bolts for Body Through-hole Mounting

Part Model	Number of pieces
MHF-B12	MHF2-12D	2 pieces/unit
	MHF2-12D1	2 pieces/unit
	MHF2-12D2	4 pieces/unit

* The bolts for body through-hole mounting are attached to the product. They are also provided at an order of 1 piece or more with the above part numbers.
* When mounting MHF2-16D or MHF2-20Dwith the body through-holes, use hexagon socket head screws available on the market.

Replacement part/Grease pack part model:

MHF2-□□D, D1(ø12,16,20) MHF2-□□D2(ø12)	GR-S-010(10g) (Guide unit)
	GR-L-005(5g) (Cylinder unit)
MHF2-□□D2(ø16,20)	GR-S-010(10g) (Guide unit)
	GR-L-010(10g) (Cylinder unit)

Dimensions

MHF2-8D

MHF2-8D1

MHF2-8D2

MHF2-12D

MHF2-12D1

MHF2-12D2

MHF2-16D

MHF2-16D1

MHF2-16D2

MHF2-20D

MHF2-20D1

MHF2-20D2

Body Option: Side Piping Type

Body Option Dimension (mm)

Model	A	B	C	D
MHF2-8DR	5.5	25	11	M3×0.5
MHF2-8D1R	5.5	37	11	M3×0.5

Body Option Dimension (mm)

Model	A	B	C	D
MHF2-8D2R	5.5	61	11	M3×0.5
MHF2-12DR	7	38	14.8	M5×0.8
MHF2-12D1R		54
MHF2-12D2R		90
MHF2-16DR	9	54	19	M5×0.8
MHF2-16D1R		76
MHF2-16D2R		124
MHF2-20DR	10	66	23	M5×0.8
MHF2-20D1R		94
MHF2-20D2R		154

* For dimensions not given above, please contact us.

Auto Switch Installation Examples and Mounting Positions

Various auto switch applications are possible through different combinations of auto switch quantities and detecting positions.

1) Detection when Gripping Exterior of Workpiece

Detection example				1. Confirmation of fingers in reset position	2. Confirmation of workpiece held	3. Confirmation of workpiece released
Position to be detected
Operation of auto switch				Auto switch turned on when fingers return. (Light ON)	Auto switch turned on when gripping a workpiece. (Light ON)	When a workpiece is not held (Abnormal operation): Auto switch to turn ON. (Light ON)
Detection Combinations	One auto switch *One position, any of 1, 2 and 3 can be detected.			●	●	●
	Two auto switches *Two positions, any of 1, 2 and 3 can be detected.	Pattern	A	●	●	-
			B	-	●	●
			C	●	-	●
How to determine auto switch installation position At no pressure or low pressure, connect the auto switch to a power supply, and follow the directions.

Note 1) It is recommended that gripping of a workpiece be performed close to the center of the finger stroke.
Note 2) When holding a workpiece close at the end of open/close stroke of fingers, detecting performance of the combinations listed in the above table may be limited, depending on the hysteresis of an auto switch, etc.

2) Detection when Gripping Interior of Workpiece

Detection example				1. Confirmation of fingers in reset position	2. Confirmation of workpiece held	3. Confirmation of workpiece released
Position to be detected
Operation of auto switch				Auto switch turned on when fingers return. (Light ON)	Auto switch turned on when gripping a workpiece. (Light ON)	When a workpiece is not held (Abnormal operation): Auto switch to turn ON. (Light ON)
Detection Combinations	One auto switch *One position, any of 1, 2 and 3 can be detected.			●	●	●
	Two auto switches *Two positions, any of 1, 2 and 3 can be detected.	Pattern	A	●	●	-
			B	-	●	●
			C	●	-	●
How to determine auto switch installation position At no pressure or low pressure, connect the auto switch to a power supply, and follow the directions.

Auto Switch Hysteresis

Auto switches have hysteresis similar to micro switches. Use the table below as a guide when adjusting aut switch positions.

Hysteresis

	D-M9□(V) D-M9□W(V) D-M9□A(V)
MHF2-8D□	0.2
MHF2-12D□	0.3
MHF2-16D□	0.2
MHF2-20D□	0.5

Auto Switch Mounting

Insert the auto switch into the auto switch mounting groove in the air chuck in th direction shown below, and after setting the mounting position, tighten the attached switch mounting screw with a flat head watchmaker's screwdriver.

Note) Use a watchmaker's screwdriver with a grip diameter of 5 to 6 mm to tighten the auto switch mounting screw. The tightening torque should be about 0.05 to 0.15 N·m.

Protrusion of Auto Switch from Edge of Body

• The amount of auto switch protrusion from the body end surface is shown in the table below.
• Use this as a standard when mounting, etc.

Protrusion of Auto switch

Lead wire type		In-line entry		Perpendicular entry
Illustration
Model	Auto switch / Finger position	D-M9□ D-M9□W	D-M9□A	D-M9□V D-M9□WV	D-M9AV
MHF2-8D	Open	6.5	8.5	4.5	6.5
MHF2-8D	Close	6.5	8.5	4.5	6.5
MHF2-8D1	Open	6.5	8.5	4.5	6.5
MHF2-8D1	Close	6.5	8.5	4.5	6.5
MHF2-8D2	Open	0.5	2.5	――	――
MHF2-8D2	Close	0.5	2.5	――	――
MHF2-12D	Open	3	5	1	3
MHF2-12D	Close	3	5	1	3
MHF2-12D1	Open	1	3	――	――
MHF2-12D1	Close	1	3	――	――
MHF2-12D2	Open	――	――	――	――
MHF2-12D2	Close	――	――	――	――
MHF2-16D	Open	――	――	――	――
MHF2-16D	Close	――	――	――	――
MHF2-16D1	Open	――	――	――	――
MHF2-16D1	Close	――	――	――	――
MHF2-16D2	Open	――	――	――	――
MHF2-16D2	Close	――	――	――	――
MHF2-20D	Open	――	――	――	――
MHF2-20D	Close	――	――	――	――
MHF2-20D1	Open	――	――	――	――
MHF2-20D1	Close	――	――	――	――
MHF2-20D2	Open	――	――	――	――
MHF2-20D2	Close	――	――	――	――

Note) There is no protrusion for sections of the table with no values entered.

Caution

When using an auto switch on the mounting plate side, the switch will protrude from the end face as shown in the right figure. Please provide a run off space of 2 mm or more on the mounting plate.