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HFC series 3 finger pneumatic gripper — изображение 2

HFC series 3 finger pneumatic gripper

Features an internal wedge structure that generates high gripping force;
Equipped with a bumper pad at the front of the piston to effectively reduce metal-on-metal impact noise during gripper release;
Includes positioning pin holes at the base to enhance installation accuracy and ensure consistent positioning during repeated disassembly and reassembly;
Offers high gripping repeatability, making it ideal for use in automated equipment;
Available in a wide range of series and specifications to accommodate the gripping of workpieces with diverse shapes.

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HFC series 3 finger pneumatic gripper features a cylindrical body and a wedge-driven concentric pneumatic gripper mechanism. A piston drives an internal wedge block, whose inclined surfaces simultaneously actuate multiple gripper jaws to clamp radially inward or open outward. Operation is controlled by dual air ports; there are no internal springs, so the gripper maintains its current position upon loss of air pressure.
The wedge-based force-amplification structure delivers higher gripping force at the same air pressure, while the synchronized movement of all jaws ensures the workpiece center remains fixed.
Designed as a direct alternative to the SMC MHS2/MHS3/MHS4 series, it utilizes an internal wedge slider to drive the jaws to close synchronously toward the center, providing automatic concentric positioning—ideal for gripping cylindrical or tubular workpieces.

Gripper types: 2-jaw parallel gripping HFCI (Type I), 3-jaw concentric self-centering gripping HFCY (Type Y), and 4-jaw concentric gripping HFCX (Type X).

Mounting method: Rear threaded hole mounting, front through-hole mounting.

The main body features a circular sensor mounting groove, eliminating the need for mounting accessories and offering convenience and flexibility.

The internal wedge structure enables a high clamping force to be achieved.

The front end of the piston features a shock-absorbing pad designed to effectively reduce the sound of metal-on-metal impact when the gripper jaws release.

The bottom of the main body is equipped with locating pin holes to enhance fixation accuracy and improve positioning consistency during repeated disassembly and reassembly.

Clamping force and stroke

Модель		Effective gripping force of a single pneumatic gripper (N)		Opening/closing travel (both sides) (mm)
Модель		Opening clamping force	Clamping force	Opening/closing travel (both sides) (mm)
Two-jaw	HFCI16	23	21	4
	HFCI20	42	37	4
	HFCI25	71	63	6
	HFCI32	123	111	8
	HFCI40	195	177	8
	HFCI50	306	280	12
	HFCI63	537	502	16
Three-jaw	HFCY16	16	14	4
	HFCY20	28	25	4
	HFCY25	47	42	6
	HFCY32	82	74	8
	HFCY40	130	118	8
	HFCY50	204	187	12
	HFCY63	359	335	16
Four-claw	HFCX16	12	10	4
	HFCX20	21	19	4
	HFCX25	35	31	6
	HFCX32	61	55	8
	HFCX40	97	88	8
	HFCX50	153	140	12
	HFCX63	268	251	16

The gripping forces listed in the table above are based on an operating air pressure of 0.5 MPa, with the gripping point at L=20 mm for sizes φ16–φ25 and L=30 mm for sizes φ32–φ63.

Technical Specification

Bore diameter (mm)	16	20	25	32	40	50	63
Form of action	Double-acting type
Working Medium	Air (filtered through a 40 µm mesh screen)
Operating pressure range	0.2~0.7Mpa(29~100psi)(2.0~7.0bar)			0.15~0.7Mpa(22~100psi)(1.5~7.0bar)
Operating Temperature	-20°C~70°C
Apply oil / Add oil / Lubricate	unnecessary
Repeatability	±0.01
Maximum operating frequency	120 （C.P.M）			60 （C.P.M）
Magnetic sensor switch	CMSH DMSH EMSH
Interface thread size	M3*0.5	M5*0.8