Litzler cross-flow oxidation ovens
produce high-quality carbon fiber due to precise airflow and temperature
uniformity.
The cross-flow design is successfully producing 1k tow up to 350k
tow in plants around the world. Litzler ovens are in operation
in the United States, China, Taiwan and Western Europe.
The Litzler cross-flow design is available
in pilot scale machines less than 1 meter wide as well as production
systems up to 4 meters wide. Cross-flow uniformity is maintained
with velocities between the fiber bands from 1.5 mps up to 3.0
mps on wide machines.
The cross-flow ovens feature the patented
End-Seal System to seal the ends of the oven.
The End-Seal minimizes cold air infiltration
and the bottom of the oven and hot air from escaping at the top
of the oven. A patented venturi airbar is located above and below
each fiber band. Each airbar is individually controlled using
dampers. Our design uses hot air from the process to keep the
tow at temperature and avoid tar build-up.
The End-Seals
• Improve temperature uniformity
• Minimize escape of toxic gases
• Reduce oven exhaust
• Reduce fuel consumption
• Can be retrofitted to existing ovens
3D Design
All Litzler oxidation ovens are designed using our state-of-the-art
3D design software. The 3D software allows for faster designs
and more efficient manufacturing techniques.
CFD Analysis (Computational Fluid
Dynamics)
Litzler utilizes Fluent® CFD software to model our airflow
and temperature uniformity prior to manufacturing. This cutting
edge technology allows us to maximize our designs before we ship
an oven.
Example of the uniformity attained with our
cross-flow design. Click picture to enlarge.
Roll Stands
Litzler roll stands include unique features developed for processing
carbon fiber.
Rugged tubular steel frames are designed
for minimal deflection and good operator access. Individual adjusting
mechanisms provide precise bearing and roll alignment for accurate
product tracking.
Most rolls are hard chrome-plated with
a matte finish to minimize fiber removal and roll wrap. Rolls
are computer designed for optimal diameter to provide minimum
deflection. Journals and bearings are oversized to prolong operational
life.
Custom removable brushes can be supplied
to remove fly build-up from the rollers. The brushes are easily
replaceable and spring loaded to assure consistent pressure against
the rollers.
