4LR Operators

The 4LR range of swinging gate actuators are robustly constructed to give highly reliable and quiet operation at economical prices for medium duty applications. Brief details of some of the main special features follow :

Stylish corrosion resistant body, rounded to avoid dirt and water traps

Independant pressure safety valves in both directions of operation to prevent injury.

Damping at both ends of stroke to reduce shock, avoid noise and remove necessity of external end-stops.

Thermal cut-outs fitted to motors to avoid over-heating.

Various automatic locking options - including internal hydraulic check valves and external hydraulic or electrical locks.

Manual over-ride available for all locking systems to ensure access in case of power failure.

All operators and hydraulic components designed, manufactured and extensively tested in-house.

All internal parts bathed in oil so virtually no maintenance required.

Technical details :

Type 4LR50D250A3A1

Power 110W (0.15HP)

Voltage 220V - 50Hz

Capacitor 8µF

Thermal Cut-out 100º C

Displacement/rev 0,5cc

Stroke 250mm

Maximum cycles per hour 50

Approx. extend time 14 sec.

Approx. retract time 13 sec.

Damping each end 12mm

Extending force 0 - 790 kg

Retracting force 0 - 600 kg

Temperature range -20 to +80º C

Fluid to be used HVI22

For temperatures below -20ºC we can supply units filled with a special hydraulic fluid.

Instructions in Adobe format

	Stylish corrosion resistant body, rounded to avoid dirt and water traps
	Independant pressure safety valves in both directions of operation to prevent injury.
	Damping at both ends of stroke to reduce shock, avoid noise and remove necessity of external end-stops.
	Thermal cut-outs fitted to motors to avoid over-heating.
	Various automatic locking options - including internal hydraulic check valves and external hydraulic or electrical locks.
	Manual over-ride available for all locking systems to ensure access in case of power failure.
	All operators and hydraulic components designed, manufactured and extensively tested in-house.
	All internal parts bathed in oil so virtually no maintenance required.

Type	4LR50D250A3A1
Power	110W (0.15HP)
Voltage	220V - 50Hz
Capacitor	8µF
Thermal Cut-out	100º C
Displacement/rev	0,5cc
Stroke	250mm
Maximum cycles per hour	50
Approx. extend time	14 sec.
Approx. retract time	13 sec.
Damping each end	12mm
Extending force	0 - 790 kg
Retracting force	0 - 600 kg
Temperature range	-20 to +80º C
Fluid to be used	HVI22
For temperatures below -20ºC we can supply units filled with a special hydraulic fluid. Instructions in Adobe format