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ROEMHELD Electric Power Units (Compact)

ROEMHELD Power Workholding

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Product Information

ROEMHELD Electric Power Units (Compact) Part # CLR-KA-12000 Carr Lane Mfg.®

7250, 5800, or 4280 psi max

For Single-Acting and Double-Acting Systems

Electric Power Units are the best power source for most workholding applications, complete with all electrical and hydraulic controls. Quiet, long-life radial piston pump powered by a totally enclosed fan-cooled universal motor. Large reservoir provides enough fluid capacity for virtually any fixture. Leak-free poppet valves and fittings.

Choice of several different power supplies and maximum operating pressures, with either single-acting or double-acting valve function. The double-acting versions can also be used for single-acting systems.

7250 psi – 460 Volts, 3 Phase

5800 psi – 230 Volts, 3 Phase

4280 psi – 120 Volts, 1 Phase

Operation

The heart of this unit is a precision, long-life radial-piston pump controlled upon demand by an integral pressure switch. This switch is infinitely adjustable from the minimum to the maximum operating pressure. Automatic pressure control is assured, because the pump restarts if pressure drops. Clamping pressure is assured even with an electrical power failure since the solenoid valves are mechanically held in "clamped" position, requiring power only to unclamp. The poppet design of these valves ensures positive, leak-free sealing.

Mounting & Setup

Diagram showcasing the application of Roemheld Electric Power Units Compact

Diagram showcasing the application of Roemheld Electric Power Units Compact

Mount power unit upright, preferably above fixture level to keep the unit clean. Power units can also be mounted on the machine tool using an angle bracket. Connect to a fused electrical supply and fill with clean, approved Hydraulic Fluid. Do not use NPT fittings for hydraulic connections.

Safety Features

Fail-safe operation in case of electrical-power failure since the solenoid-operated clamping valves are de-energized in "clamped" position. These valves are poppet type, so they provide tight zero-leakage sealing. Pump motor has a thermal-overload relay with manual reset.

Duty Cycle

Electric Power Units are designed specifically and purely for workholding, with intermittent clamping and unclamping between machining cycles (not continuous running). For most workholding applications, actual running time is a small percentage of total cycle time. Run time must be less than 40% of total cycle time at maximum fluid level (25% at minimum fluid level). Run time must also be less than 120 continuous seconds at maximum fluid level (15 seconds at minimum fluid level). Otherwise the fluid will overheat and the unit will shut off automatically.

ROEMHELD Electric Power Units (Compact)

7250 psi max – 460 Volts, 3 Phase

QUANTITY	PART NO.	OPERATING PRESSURE RANGE (psi)	CONTROL VOLTAGE	VALVE FUNCTION	INCLUDES PUSH- BUTTON PENDANT SWITCH	FLOW RATE (cu in. /min)	RESERVOIR CAPACITY (cu in.)	USABLE FLUID CAPACITY (cu in.)	POWER AT MAX PRESSURE (hp)	MOTOR CURRENT (amps)	NOISE LEVEL @ 3 ft (dBA)
	CLR-KA-11101	1200-7250	24VDC	Single Acting	Yes	110	238	112	1.2	2.1	65
	CLR-KA-11100	1200-7250	24VDC	Single Acting	No	110	238	112	1.2	2.1	65
	CLR-KA-11011	1200-7250	24VDC	Double Acting	Yes	110	238	112	1.2	2.1	65
	CLR-KA-11010	1200-7250	24VDC	Double Acting	No	110	238	112	1.2	2.1	65
	CLR-KA-11201	1200-7250	24VDC	Two Independent Single-Acting Circuits	Yes (2)	110	238	112	1.2	2.1	65
	CLR-KA-11012	1200-7250	24VDC	Coupling / Decoupling	Yes (Multifunction)	110	238	112	1.2	2.1	65
	CLR-KA-11000	1200-7250	24VDC	No Valves	No	110	238	112	1.2	2.1	65
	CLR-KA-12101	1200-7250	120VAC	Single Acting	Yes	110	238	112	1.2	2.1	65
	CLR-KA-12100	1200-7250	120VAC	Single Acting	No	110	238	112	1.2	2.1	65
	CLR-KA-12011	1200-7250	120VAC	Double Acting	Yes	110	238	112	1.2	2.1	65
	CLR-KA-12010	1200-7250	120VAC	Double Acting	No	110	238	112	1.2	2.1	65
	CLR-KA-12000	1200-7250	120VAC	No Valves	No	110	238	112	1.2	2.1	65

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5800 psi max – 230 Volts, 3 Phase

QUANTITY	PART NO.	OPERATING PRESSURE RANGE (psi)	CONTROL VOLTAGE	VALVE FUNCTION	INCLUDES PUSH- BUTTON PENDANT SWITCH	FLOW RATE (cu in. /min)	RESERVOIR CAPACITY (cu in.)	USABLE FLUID CAPACITY (cu in.)	POWER AT MAX PRESSURE (hp)	MOTOR CURRENT (amps)	NOISE LEVEL @ 3 ft (dBA)
	CLR-KA-21101	1000 - 5800	24VDC	Single Acting	Yes	110	238	112	1.0	3.9	65
	CLR-KA-21100	1000 - 5800	24VDC	Single Acting	No	110	238	112	1.0	3.9	65
	CLR-KA-21011	1000 - 5800	24VDC	Double Acting	Yes	110	238	112	1.0	3.9	65
	CLR-KA-21010	1000 - 5800	24VDC	Double Acting	No	110	238	112	1.0	3.9	65
	CLR-KA-21201	1000 - 5800	24VDC	Two Independent Single Acting Circuits	Yes (2)	110	238	112	1.0	3.9	65
	CLR-KA-21012	1000 - 5800	24VDC	Coupling / Decoupling	Yes (Multifunction)	110	238	112	1.0	3.9	65
	CLR-KA-21000	1000 - 5800	24VDC	No Valves	No	110	238	112	1.0	3.9	65
	CLR-KA-22101	1000 - 5800	120VAC	Single Acting	Yes	110	238	112	1.0	3.9	65
	CLR-KA-22100	1000 - 5800	120VAC	Single Acting	No	110	238	112	1.0	3.9	65
	CLR-KA-22011	1000 - 5800	120VAC	Double Acting	Yes	110	238	112	1.0	3.9	65
	CLR-KA-22010	1000 - 5800	120VAC	Double Acting	No	110	238	112	1.0	3.9	65
	CLR-KA-22000	1000 - 5800	120VAC	No Valves	No	110	238	112	1.0	3.9	65

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4280 psi max – 120 Volts, 1 Phase

QUANTITY	PART NO.	OPERATING PRESSURE RANGE (psi)	CONTROL VOLTAGE	VALVE FUNCTION	INCLUDES PUSH- BUTTON PENDANT SWITCH	FLOW RATE (cu in. /min)	RESERVOIR CAPACITY (cu in.)	USABLE FLUID CAPACITY (cu in.)	POWER AT MAX PRESSURE (hp)	MOTOR CURRENT (amps)	NOISE LEVEL @ 3 ft (dBA)
	CLR-KA-32101	1000 - 4280	120VAC	Single Acting	Yes	71	238	112	.67	9.0	65
	CLR-KA-32011	1000 - 4280	120VAC	Double Acting	Yes	71	238	112	.67	9.0	65

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