Pneumatic Guides

Pneumatic guides PR are designed for paper machines wires and felts run regulation or for a contingent regulation of other endless belts. The regulation itself consists of a pneumatically controlled sensor with a vane and of a pneumatic circuit.

According to the location in paper machine regulators are produced as a type „PR-302-WS” – for wet PM part in stainless steel design, and for dry part as a type PR-302-DS made by structural steel. Operational position of the regulator is random.

Design

Horizontal guide PR-xxxyH consists of a bearing housing into which a guide roll is bedded.

Vertical guide PR-xxxyV is almost of the same design as the horizontal one with the only difference consisting in the fact that its lower pneumatic bellow is bigger due to elimination of weight of the roll that is guided.

Special guide PR-xxxyS is designed for a wire run regulation in PM wire parts for a guide roll with a doctor.

Sensor with vane PR-02-PVW The pneumatic guide is an actuator which sets a guide roll into a needed position according to the evaluation of sensor impulses. Generally, the sensing element works like a distributor valve forcing the pressure air to enter particular pneumatic bellows.

The valve dislocation is due to a vane swinging to the right or to the left from the central position of the longitudinal machine axis. The sensor tip is to be set in its central balanced position during installation by pushing it on the relevant edge of an endless belt.

Main parts
  • Bearing housing (1)
  • Pneumatic cylinder (2)
  • Base plate (3)
  • Pneumatic sensor (4)
  • Guide pneumatic circuit
Material
  • Pneumatic bellows (rubber)
  • Regulator: wet part (stainless steel); dry part (common steel)
  • Pneumatic sensor (stainless steel, ceramics)
Accessories
  • Air treatment unit
Scope of delivery
  • Complete machine according to main parts description
  • Accessories optionally
Technical Parameters
EnvironmentWorking stationWorking wire (felt) width
up to 3 m                     up to 5 m
WETHorizontal
Vertical
Special
PR-301WH                    PR-501WH
PR-301WV                     PR-501WV
PR-301WS                      PR-501WS
Maximal design speedHorizontal
Vertical
PR-301DH                     PR-501DH
PR-301DV                     PR501DV
Working stroke guidemm+-45
Balt diameter in bedding *)mmstandard 200​
Input air pressurebar3 - 5
Embracement angleo25 - 35

* Other type based on customer´s requirements.
H = Horizontal
V = Vertical
S = Special

Advantages
  • Fully automatic operation
  • Low operating costs
  • Functionality and reliability in service
  • Category

    Paper Machine
  • Section

    IndustrialPaper/CulturalPaper/SpecialtyPaper




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