ROEMHELD Air-Powered Swing Clamps – Block Type, J7.202

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Product Information

ROEMHELD Air-Powered Swing Clamps – Block Type, J7.202

100 psi max (Air)

Double Acting

Air-operated version of our popular hydraulic Swing Clamps, for applications requiring light clamping force. Arm swings clear for easy loading, with a sturdy helical-cam mechanism. Arm can be mounted to start its 90° swing from any position within 360°. A standard magnetic piston allows monitoring of clamping and unclamping position. The block-type version shown here provides many mounting options, including side mounting, using either standard fittings or manifold mounting.

Available in five sizes, each with a choice of clockwise or counterclockwise swing. Clamping force at 100 psi with standard arm:

31 lbs (3 Series)

83 lbs (4 Series)

126 lbs (5 Series)

200 lbs (6 Series)

310 lbs (7 Series)

Application Information

Documents

J7.202

Data Sheet

Clamping Action

Swing Clamps are pull-type cylinders where part of the total stroke is used to swing the piston, and the remaining stroke is available as the clamping range. Applying air pressure to the A (clamping) port swings arm 90° over workpiece then clamps down. Switching pressure to the B (unclamping) port positively lifts arm then swings it back 90° for loading/unloading.

Design Considerations

See Application Information for a typical air-connection example. Use an Air Check Valve between the air supply and the Air Clamping Valve to protect against pressure loss if the air supply fails. Always use a Filter/Regulator/Lubricator. For extended clamp life, install an Air Extractor Dryer before the Filter/Regulator/Lubricator. Swing motion must not be restricted in any way. Be sure to adjust the contact bolt so that the clamp completes its full swing stroke and starts its clamping stroke before contacting the workpiece. Do not use with hydraulic fluid.

Mounting

For bottom mounting, insert four socket-head cap screws from the top end, through the four counterbored holes parallel to the plunger (these holes are also tapped at the bottom to allow fastening with socket-head cap screws from below). For side mounting, insert two socket-head cap screws through the two broad-side holes perpendicular to the plunger.

Clamping Arm

Order clamping arm separately. Standard clamping arm has a maximum allowable operating pressure of 100 psi. Longer clamping arms will reduce allowable operating pressure, inversely proportional to arm length.

Optional Position Sensing

All of these clamps have a magnetic piston as standard and are ready to accept position sensing. Standard side grooves provide convenient sensor mounting and adjustment. Order two CLR-3829-234-PM (pnp) or CLR-3829-240-PM (npn) inductive proximity switches, and two CLR-3829-099-PM right-angle plugs with cable.

Material

Click here for detailed material and finish specifications.

California residents click here for Prop 65 information.

ITEM	MATERIAL	HEAT TREAT	FINISH
Piston Rod	Stainless steel	-	Black Oxide
Housing, guide bushing, piston, and flange	hardcoated aluminum	-	-
Clamping Arm	Steel	-	-

ROEMHELD Air-Powered Swing Clamps – Block Type, J7.202

Version for Standard Fittings

Order Clamping Arm separately below.

PART NO.	MAXIMUM CLAMPING FORCE (lbs)	CLAMP SIZE	SWING	CLAMPING STROKE (mm)	TOTAL STROKE (mm)	F & G PORTS
CLR-1873-106	31	3 Series	90° cw	7	14.5	M5
CLR-1873-206	31	3 Series	90° ccw	7	14.5	M5
CLR-1874-106	82	4 Series	90° cw	9	18.5	M5
CLR-1874-206	82	4 Series	90° ccw	9	18.5	M5
CLR-1875-106	124	5 Series	90° cw	15	32	1/8 BSPP
CLR-1875-206	124	5 Series	90° ccw	15	32	1/8 BSPP
CLR-1876-106	195	6 Series	90° cw	15	33	1/8 BSPP
CLR-1876-206	195	6 Series	90° ccw	15	33	1/8 BSPP
CLR-1877-106	310	7 Series	90° cw	18	41	1/4 BSPP
CLR-1877-206	310	7 Series	90° ccw	18	41	1/4 BSPP

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Version for Manifold Mounting with O-Ring Ports at Bottom End (Version B)

Order Clamping Arm separately below.

PART NO.	MAXIMUM CLAMPING FORCE (lbs)	CLAMP SIZE	SWING	CLAMPING STROKE (mm)	TOTAL STROKE (mm)	F & G PORTS
CLR-1873-106B	31	3 Series	90° cw	7	14.5	M5
CLR-1873-206B	31	3 Series	90° ccw	7	14.5	M5
CLR-1874-106B	82	4 Series	90° cw	9	18.5	M5
CLR-1874-206B	82	4 Series	90° ccw	9	18.5	M5
CLR-1875-106B	124	5 Series	90° cw	15	32	1/8 BSPP
CLR-1875-206B	124	5 Series	90° ccw	15	32	1/8 BSPP
CLR-1876-106B	195	6 Series	90° cw	15	33	1/8 BSPP
CLR-1876-206B	195	6 Series	90° ccw	15	33	1/8 BSPP
CLR-1877-106B	310	7 Series	90° cw	18	41	1/4 BSPP
CLR-1877-206B	310	7 Series	90° ccw	18	41	1/4 BSPP

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Version for Manifold Mounting with O-Ring Ports on Broad Side (Version K)

Order Clamping Arm separately below.

PART NO.	MAXIMUM CLAMPING FORCE (lbs)	CLAMP SIZE	SWING	CLAMPING STROKE (mm)	TOTAL STROKE (mm)	F & G PORTS
CLR-1873-106K	31	3 Series	90° cw	7	14.5	M5
CLR-1873-206K	31	3 Series	90° ccw	7	14.5	M5
CLR-1874-106K	82	4 Series	90° cw	9	18.5	M5
CLR-1874-206K	82	4 Series	90° ccw	9	18.5	M5
CLR-1875-106K	124	5 Series	90° cw	15	32	1/8 BSPP
CLR-1875-206K	124	5 Series	90° ccw	15	32	1/8 BSPP
CLR-1876-106K	195	6 Series	90° cw	15	33	1/8 BSPP
CLR-1876-206K	195	6 Series	90° ccw	15	33	1/8 BSPP
CLR-1877-106K	310	7 Series	90° cw	18	41	1/4 BSPP
CLR-1877-206K	310	7 Series	90° ccw	18	41	1/4 BSPP