Pneumatic Guides PR for Paper Machines

Pneumatic guides PR are designed for regulating the run of paper machine wires, felts, and other endless belts. The regulation is achieved using a pneumatically controlled sensor with a vane and a pneumatic circuit.

Types and Applications

• PR-302-WS: For the wet part of the paper machine, made of stainless steel.
• PR-302-DS: For the dry part of the paper machine, made of structural steel.
• Special Guide PR-xxxyS: Designed specifically for wire run regulation in PM wire parts for a guide roll with a doctor.

Design Features

Horizontal Guide PR-xxxyH:

• Consists of a bearing housing into which a guide roll is bedded.

Vertical Guide PR-xxxyV:

• Similar to the horizontal guide but features a larger lower pneumatic bellow to eliminate the weight of the guided roll.

Special Guide PR-xxxyS:

• Designed for wire run regulation in PM wire parts with a doctor-equipped guide roll.

Sensor with Vane PR-02-PVW:

• The pneumatic guide acts as an actuator, positioning the guide roll based on sensor impulses. The sensing element functions like a distributor valve, directing air pressure to specific pneumatic bellows. The valve’s position changes as the vane swings from the central position of the longitudinal machine axis. The sensor tip must be centrally balanced during installation by pressing it against the relevant edge of the endless belt.

Main Parts

1. Bearing Housing (1)
2. Pneumatic Cylinder (2)
3. Base Plate (3)
4. Pneumatic Sensor (4)
5. 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 the main parts description.
• Optional accessories based on customer requirements.

Advantages

• Fully Automatic Operation: Ensures consistent performance with minimal manual intervention.
• Low Operating Costs: Efficient design reduces operational expenses.
• Functionality and Reliability: Proven to be functional and reliable in service.

These pneumatic guides offer efficient and reliable solutions for wire and felt run regulation in paper machines, enhancing the operational efficiency and longevity of the equipment.