Twin Barrel Extruders

Aligning extruders can take hours and hours and it is hard to find methods that actually work, especially for twin-barrel extruders that have multiple sections that need alignment where “stack up” errors can lead to big misalignments. Not aligning extruders causes the barrels and screws to wear out much sooner than desired, leading to excessive costs for replacements. There is a much better way.

Our 50 years of alignment experience went into the design of the L-700 Self-Centering Extruder Borescope Alignment System that makes checking the alignment of extruder barrels to gearboxes much easier and much faster:

L-700 Self-Centering Extruder Borescope Alignment System

  • The L-700 laser attaches to the extruder’s gearbox drive shafts with a chuck fixture and is aligned to the shaft’s rotation axis.
  • 2-axis targets with self-centering bore adapters automatically find the center of the bore with no moving parts, allowing nearly instantaneous bore measurements for alignment or straightness.
  • The laser virtually eliminates stack-up errors by projecting the axis of rotation of the gearbox drive shaft out to 100 ft (30 m).
  • Very fast setup in only 15 to 20 minutes; in contrast, an optical borescope can take a couple of hours to set up.
  • The system aligns twin-barrel extruders up to 70% faster than conventional or optical borescope methods.
  • Any bore from 1.2 to 18 in. (30 to 458 mm) can easily be measured.
  • High resolution of .00002 in. (0.0005 mm) and high accuracy to .0002 in. (0.005 mm).

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L-700 Self-Centering Extruder Borescope Alignment System Configuration

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