In-Line Dies for Medical and
Industrial Tubing Extrusion

B&H Tool is the worldwide leading manufacturer of in-line dies used
to extrude a wide range of industrial tubing, hose and pipe.

Why Our Design Performs Better

Like our adjustable center crossheads, B&H in-line dies have a simple
design with minimal parts. They are a field-proven delivery system for
extruded materials that offers in-line melt-flow for reduced residence
time in the die, minimal pressure fluctuation, and optimum bonding
of the melt stream.

B&H in-line dies maintain highly balanced laminar flow, and very low
material volume.
This is a substantial advantage, because the lower the
internal volume, the higher the pressure, and the more effectively the
polymer knits. The result is increased strength and visual appeal.
Low material volume in the die also contributes to high dimensional
stability and minimizes material degradation.

B&H in-line dies have a 3-leg design that improves concentricity,
and stabilizes material flow around the air core. The precision edge of
the 3-leg spider does not permit material hang-ups – a major cause
of product defects, such as knit lines.

Main Features of B&H In-Line Dies Include:

  • Capability to extrude many configurations
  • Interchangeability of tips and dies
  • Custom-tailored heaters providing uniform heat coverage.
  • Streamlined spider leg design for optimal flow path.

Materials and Sizes

B&H in-line dies are manufactured for high and low temperature
extrusion applications.

For low temperature applications, we use 420 Stainless Steel,
heat-treated to RC52. For high temperature applications, our engineers
specify C-276 Hastelloy because it is corrosion-resistant and assures
a long, trouble-free service life.

In-line dies range from a maximum die diameter of 5/8” up to 7-1/2”.

Notes: All models are available in the following materials: 420 stainless steel (heat treated to RC52),  C276 Hastelloy, 718 Inconel (can be age hardened to RC40). Extended range modifications available.  This product suitable to your design specifications.
Notes: All models are available in the following materials: 420 stainless steel (heat treated to RC52),
C276 Hastelloy, 718 Inconel (can be age hardened to RC40). Extended range modifications available.
This product suitable to your design specifications.

The B&H One-Stop Advantage

  • B&H in-line dies include an adaptor flange customized to the extruder. 
    The adaptor flange mates the in-line die with the extruder.
  • Heaters and thermocouples for all heads are kept in stock for
    immediate shipment.
  • We supply high and low temperature breaker plates for all
    sizes of extruders.
  • B&H manufactures a full array of extrusion accessories for all
    our in-line dies, including tips and dies, breaker plates,
    and striping attachments.

B&H Tool is committed to partnering with your engineering staff to
identify and select the appropriate in-line die and related tooling that
will deliver the results you need. Our approach is transparent and
collaborative: the more you know, the more you’ll prefer to work
with B&H.

We are the supplier of in-line dies you’ve been looking for!

 

Use a Quote Request Worksheet to receive a quick and accurate quote.

Plastic Extrusion Tooling