The hatec Strainer units consist of a gear pump, hydraulic driven and a set of driven feed rollers for independent material feeding.

Hydraulic driven strainer unit with 800 kg/h nominal output

They are characterized by the following features:

  • can be fed with both warm and cold mixtures
  •  manage with 30% less energy consumption than comparable extruders
  •  increase process capability through lower product temperatures and shorter dwell times
  •  implement system protection (emergency shutdown) against damage caused by hard foreign bodies in the product
  •  are available in different sizes for a throughput of 300 l / h to 3000 l / h and can be easily integrated into existing systems due to the small footprint in many cases.
  •  In conjunction with a hydraulic drive, we complete the strainer with a protective function (emergency shutdown) that protects the strainer from damage caused by hard foreign bodies in the product within milliseconds.
  •  The hydraulic strainer also creates new parameter functions during production. These allow software controls new features that were previously impossible. Process windows can adapt themselves during production, predict screen changes or even identify mix-ups of the raw material.

Technical specification

max. output app::800 kg/h
delivery volume (1/min):612,0 cm³
assuming a specific material density of 1,2 gr/cm³:0,734 kg
frequency:50 Hz
percent filling of teeth (gear-shaft):90%
rated speed:25,2  1/min
velocity of circulation:10,33  m/min
max. torque:13000 Nm
axle-distance gear-shaft:115 mm
teeth-width gear-shaft:110 mm
drilling holes material sensor:1/2” UNF
recess diameter:ø 140 mm
pump in-/outlet:ø 120 mm
tempering gear-shaft:1/2“

hatec strainer dimension

The emergency shutdown

The protective function of the Strainer emergency shutdown protects the Strainer from damage caused by hard foreign objects in the material within milliseconds.

Safety valves set the oil pressure to zero pressure within milliseconds as soon as the control system detects a pressure fluctuation.

This is not possible with an electrical variant because the system is too slow. We would be happy to show you this function in real time on request.