Half Tank Above Ground Hydraulic Motor


The Half Tank is a hydraulic swing operator suitable for commercial and light industrial use. Available with piston stroke of 270 mm or 390 mm.

With 3 pump versions to alter operating speeds and three operator lengths, it can be used for pedestrian gates and vehicle gates. Brass and stainless steel internal valves and connectors. An oil filled bath provides continuous lubrication and rapid cooling for all moving parts, whilst a thermal overload built into the motor ensures the highest level of protection.
High levels of safety can be provided by the addition of SEA Linear Encoders. Installed underneath the cover tubes of the motors, the encoders will stop and reverse your gates almost instantly allowing gates to meet EN12453 regulations without the need for additional safety edges which could be vandalised on  abused sites.

The Half Tank operators have been the motor of choice for the MOD throughout the midlands demanding that only SEA equipment is installed due to their reliability and safety  record.

A key manual release is provided making this one of the most secure operators on the market.

Specifications Half Tank 270 1.0ltr/ 1.5ltrHalf Tank 390 1.5ltr/ 2.0ltr
Supply Voltage230Vac+5% 50/60Hz230Vac+5% 50/60Hz
Motor Power220 W220 W
Shaft Stroke270 mm390 mm
Shaft Speed1.0/ 1.5cm per sec1.5/ 2.0 cm per sec
Cycles Hour5555
Operating temperature-20°C + 55°C-20°C + 55°C
Operator Weight11,4 kg13,6 kg
Max leaf length6m7m
Opening Degrees90° – 120°90° – 125°
Protection classIP55IP55
Starting Capacitor12.5 uF12.5 uF
Max Pushing Force640 daN640 daN

Scroll to Top