Vacuum Calibration Tanks

ESI’s Vacuum Calibration Sizing Tanks are designed for the processing of plastic profiles in a variety of rigid and flexible materials. Tanks can be supplied in a variety of cross sections and lengths with different manifold and cooling options. ESI also offers hot water annealing of the front section to minimize bow in profiles with uneven thicknesses, allowing the product temperature to drop below the glass transition point before cooling with chilled water. This greatly reduces bow and camber on many profiles.

Heavy-duty bulkheads are fitted to the front section for mounting of customer’s calibrators. Product can be submerged or spray cooled, depending on options chosen. All tanks are manufactured of stainless steel and incorporate non-corrosive internal components. Standard features include high performance liquid seal vacuum pumps for accurate and consistent vacuum control and multi-directional tank movement with hand wheel adjustment.

Profile calibration tanks also feature multi-port water and vacuum manifolds with individual control valving, full length and width stainless steel overflow trays. All ESI tanks are available with optional features such as closed loop circulation systems with high output pumps and stainless steel reservoirs, multiple vacuum pumps.

Standard Features:

  • Open profile calibration sizing designs (wet or dry)
  • Multi-function vacuum tanks
  • Welded stainless steel construction
  • Heavy duty prefabricated bulkheads
  • Non-corrosive internal components
  • Full length stainless steel overflow pans
  • High performance (3 HP or larger) liquid seal vacuum pumps
  • X-Y-Z multi-axis tank adjustment
  • Blow-off compartment with drain

Available Options:

  • Closed loop circulation systems
  • 25, 55, 80 sq. ft. heat exchangers
  • Hot water annealing
  • Vacuum pump upgrades
  • Automatic precision vacuum level control
  • Full spray cooling sections
  • Single or dual bag filtration systems
  • Self-contained blow-off systems
  • Custom sizes and configurations
  • Motorized axis adjustments