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GLOBAL LEADER IN VALVE & SENSING TECHNOLOGIES.
State-of-the-Art Engineering & Manufacturing Capabilities Deliver Consistent Quality
PMS 186 Red, PMS 648 Blue
SCHRADER QUALITY. BUILT-IN.
Schrader’s brand reputation is built upon our
continual dedication to design and manufacturing leadership in sensing, valve and fluid control
technology. Our world-class manufacturing processes have been developed to manufacture the
latest variants of Schrader’s products on highvolume and fully-automated processes, utilizing
only the highest quality inputs and state-of-theart equipment.
At Schrader, quality means defect free. Quality
assurance mechanisms are built into each key
stage of the manufacturing process, and are operated by experienced, highly-skilled Schrader
associates. Schrader quality and innovation is
installed within our customers’ mission-critical
applications where safety, performance and reliability can never be compromised. As such,
each Schrader manufactured product undergoes thorough quality-testing before it ever
Quality with a Purpose
Schrader Quality means defect-free
Highest-quality solutions via high-automation
Proven track record & trusted partner
leaves a Schrader facility. Schrader is also the
only vertically-integrated tire pressure monitoring system (TPMS) manufacturer in the world.
In-house TPMS valve manufacturing and application-specific integrated circuit (ASIC) chip capabilities allow us to directly control the design,
development and production of all Schrader
TPMS products. The Schrader valve and ASIC
are two key custom components of a Schrader
TPMS sensor, and direct control over these critical elements provides the differentiated ability
to quickly evolve to meet changing market demands and customer needs.
Schrader facilities have all been fully-certified
(TS, ISO and OSHA-compliant to name only a few)
and have been recognized by numerous government and other leading organizations for our
commitment and dedication to innovation, quality, environmentalism and safety.
Performance from the inside out
The finest operational performance in diverse applications
Schrader products save lives
Mission critical industrial & automotive applications
PRECISION
Highest-quality inputs
consistently deliver
superior products
AUTOMATION
State-of-the-art equipment
delivers high manufacturing
efficiency and consistent quality
RIGOROUS ERROR CHECKING
Error proofing ensures only
quality tested products reach
our customers
EXPERIENCED & HIGHLY
SKILLED WORK FORCE
Able to operate highly
automated equipment
CASE IN POINT: SCHRADER SNAP-IN VALVES
OZONE RESISTANCE
CRACKS
ADHESION
EXCESSIVE FLASH
CREEP AREAS
DEFORMATION
NO
CRACKS
CREEP
AREA
Rubber tire valves must
be ozone resistant
to prevent rubber
deterioration in the
form of surface cracks
and, in extreme cases,
rubber splitting and
breakage throughout
the entire rubber
part. A common term
for ozone attack on
rubber is “dry rot.”
In extreme cases,
this can cause a rapid
loss of air pressure
within the affected
tire. Schrader uses a
specially formulated
rubber compound that
provides strong ozone
resistance.
The valve stem shown
above exhibits an
absence of adhesion
or bonding of the
rubber to the brass
body insert. Loss of
adherence is caused by
contaminated brass,
improper molding
conditions or poor
rubber composition.
Adhesion is important
because it keeps
the metal insert in
place and prevents
loss of air pressure.
Schrader valve
stems are subjected
to adhesion testing
during assembly to
ensure that the stem
will provide premium
performance.
Flash is excess rubber
on a molded product.
Caused by worn molds
or excessive molding
pressures, excess
flash creates issues
with tire assembly
automation and may
also interfere with
proper seating of the
valve within the wheel.
Flash caught between
the valve stem and
the wheel may also
cause leaks. Schrader
uses well-maintained
molds and electronic
process controls to
ensure that proper
molding pressures and
temperatures are met
each and every time.
Creep is caused by
applying a load to the
rubber before it is fully
cured or by using a
rubber compound without
good compression set
qualities. This leaves
a permanent change
in the surface of the
rubber that can become
a surface leak path and a
potentially hidden inner
rubber fault. The load
can be applied as the
rubber is ejected from
the mold due to sticking
or later. Schrader uses
a rubber compound
that is inherently creep
resistant, and electronic
machine controls ensure
a complete cure cycle on
all molded valve stems.
Valve deformation
is mainly linked to
a lack of rubber
vulcanization;
therefore, Schrader
utilizes a specific
process able to
automatically discard
the valve if the
cure time or cure
temperatures are
beyond the required
level. During
valve production,
functional shapes are
under video control
and mechanical
rubber properties are
fully tested.
INNOVATION INSIDE.
// 800.345.0578
www.SchraderInternational.com