Wiping Systems

The original Pollastrelli Wiper design consists of a 3 roll wiper design with 2 rolls above the strip and one roll below. In recent years, we have made substantial innovations to the 4-roll wiper design (2 rolls above the strips; 2 rolls below) including new design bearing yokes, different spring loading and variable pressure designs. Each roll is backed up across its axial length by numerous spring loaded caster bearings thereby ensuring uniform support across the width which also allow the rolls to conform to the shape of the strip. The entire Pollastrelli wiper assembly is mounted on spring loaded guides which enable the wiper to "float" thereby allowing for a varying passline height.

Wiping SystemsCoolant nozzles and edge-directed air nozzles are mounted on the upper wiper assembly back towards the mill housing side. The coolant nozzles direct the exiting coolant coolant back towards the mill housing forming an effective coolant dam, while the air nozzles act as edge blow offs. (The air nozzles are a special design with low noise generation). With this design, more coolant is directed to the front door and back plates. Compare Pollastrelli Wipers against your current cost of maintaining contact type wipers. Our calculations (based on a 50” mill) show that payback will occur in as few as 12 months of operation. Cost of operation after this time is limited to re-grinding the rolls every 3 to 6 weeks of operation - based on a 3 shift operation.

We have well over 100 systems in operation world-wide!

Advantages of the Pollastrelli Wiper Design

T. Sendzimir, Inc, also designs:

  1. Standard 2-Roll 3M roller wipers
  2. Large Diameter chock supported 3-Roll, Roller Wipers
  3. Vacuum assist wipers
  4. Standard hose type wipers
  5. We also have developed a proprietary design 2-roll wiper using a small diameter 3M roll as the wiping medium. More information upon request!
  6. Multiple wiper configuration assemblies of any of the above.
  7. Specialty 3-Roll designs for high speed/thin gauge applications.

If you have a spare unit, then we can make these changes to the spare and change out each unit until a complete re-design has been achieved on all Pollastrelli wiper units. Please call for more information.