ROEMHELD Threaded-Body Work Supports – Fluid Advanced, B1.940&B1.9401 (1460, 2100 lbs)

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ROEMHELD Threaded-Body Work Supports – Fluid Advanced, B1.940&B1.9401 (1460, 2100 lbs)

7250 psi max

Single Acting

Fluid Advanced

Work Supports automatically adjust to the proper height for supporting a workpiece, then lock securely to become fixed rests. Fluid-advanced Work Supports provide extra loading clearance and are ideal for workpieces that are too light to depress a spring-loaded plunger. The mini threaded-body version shown here is amazingly compact. Manifold mounting capability allows space-saving low-height installation. Hardened contact bolt furnished.

Available in two sizes, inch or metric, standard or long stroke, with the following load capacities at 7250 psi:

1460 lbs (Inch – Standard Stroke)

1460 lbs (Metric – Standard & Long Stroke)

2100 lbs (Metric – Standard & Long Stroke)

Application Information

In this example, the workpiece is supported by three fixed rest buttons and three self-adjusting Work Supports. Supports and Edge Clamps are all manifold mounted, so the fixture has no exposed fluid lines to trap chips.

Documents

Updated B1.940

B1.9401

Sizes & Load Capacity

1460 Lbs

Inch & Metric

(also long-stroke version in metric only)

2100 Lbs

Metric Only

(also long-stroke version in metric only)

Support Action (Fluid Advanced)

Plunger is normally retracted for clear workpiece loading and unloading. Applying fluid pressure gently advances the plunger to the workpiece, where it contacts with light spring force. As fluid pressure increases, the precision sleeve grips the plunger, locking it securely. The plunger retracts again when pressure is released.

Locking height is repeatable within +/-.0002". Such excellent repeatability is possible because of two design features: 1) a precision sliding-fit pressure sleeve holds the plunger absolutely vertical even while unlocked, avoiding any inaccuracy due to locking a tilted plunger, and 2) locking force is entirely radial, so the plunger remains absolutely stationary during the locking process.

Design Considerations

Supporting underneath a clamp

If the workpiece is light enough that plunger contact could lift it, use a Sequence Valve to delay advancing the work support until after the workpiece is clamped. Do not exceed maximum fluid flow rate in table; otherwise the support could lock prematurely before the plunger is fully extended. Do not use the plunger to lift loads, or support side loads. The support plunger must always be protected against penetration of contaminants by a contact bolt (furnished).

When supporting underneath a clamp, use a Sequence Valve to delay clamping until the Work Support has reached sufficient load capacity to resist the clamping force. Support load capacity should be at least 2 times clamping force at all times, to resist not only static clamping force, but also dynamic forces due to clamping-arm momentum and machining forces.

Mounting & Fluid Supply

Install Work Support directly into a flat-bottom tapped hole in the fixture – see drawings for hole-preparation instructions. Alternatively, inch-size Work Supports can be installed in a Mounting Base. In both cases, hydraulic sealing is accomplished by a Sealing Washer (furnished) placed directly underneath the support. Tighten to the recommended seating torque of 50 ft-lbs. Fluid passages must be drilled as shown in the drawings. Do not use NPT fittings.

Optional Mounting Base

The optional mounting base adds 10mm to the Work Support's overall height.

Optional Metal Wiper

Metal wipers protect the standard FKM wiper by acting as a shield and protecting against high-pressure coolant jets, and coarse chips.

Materials

ITEM	MATERIAL	HEAT TREAT	FINISH	DFARS	RoHS
Plunger	Steel	-	Case Hardened	✔	✔
Body	Steel	-	Black Oxide	✔	✔
Sealing Washer	Delrin	-	-	✔	✔

Click here for detailed material and finish specifications.

California residents click here for Prop 65 information.

ROEMHELD Threaded-Body Work Supports – Fluid Advanced, B1.940&B1.9401 (1460, 2100 lbs)

Inch

QUANTITY	PART NO.	SIZE	VERSION	MAXIMUM LOAD CAPACITY (lbs)	MAXIMUM LOAD CAPACITY (kN)	PLUNGER DIA (mm)	E BODY THREAD	STROKE (mm)	A RETRACTED HEIGHT (mm)
	CLR-201-WS	1	Standard	1460	6.5	16	1-1/4"-16	8	72.5

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Metric

PART NO.	SIZE	VERSION	MAXIMUM LOAD CAPACITY (lbs)	MAXIMUM LOAD CAPACITY (kN)	PLUNGER DIA (mm)	E BODY THREAD	STROKE (mm)	A RETRACTED HEIGHT (mm)
CLR-1942-000	1	Standard	1460	6.5	16	M30x1.5	8	72.5
CLR-1942-005	1	Long Stroke	1460	6.5	16	M30x1.5	15	79.5
CLR-1942-010	2	Standard	2100	9.5	16	M30x1.5	8	82.5
CLR-1942-015	2	Long Stroke	2100	9.5	16	M30x1.5	15	89.5

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Metric - with Metal Wiper (B1.9401)

PART NO.	SIZE	VERSION	MAXIMUM LOAD CAPCITY (lbs)	MAXIMUM LOAD CAPCITY (kN)	PLUNGER DIA (mm)	E BODY THREAD	STROKE (mm)	A EXTENDED HEIGHT (mm)
CLR-1942-002	1	Standard	1460	6.5	16	M30x1.5	8	72.5
CLR-1942-007	1	Long Stroke	1460	6.5	16	M30x1.5	15	79.5
CLR-1942-012	2	Standard	2100	9.5	16	M30x1.5	8	82.5
CLR-1942-017	2	Long Stroke	2100	9.5	16	M30x1.5	15	89.5