Contributing to Taiwanese Bicycle
Taiwanese bicycle industry took off in 1950s. Owing to technique
breakthrough, quality improvement, and innovative design, Taiwan
exported more than 300 million bicycles in 1980 and substituted for Japan
as the NO.1 exporting country. Nowadays, Taiwan plays an important role in
bicycle market. WSI has cooperated with many shock absorber suppliers
such as SRAM, HODAKA, DURASHOX, APRO, OHLINS SR SUNTOUR and etx. for
famous bicycle manufacturers in initial stage. After developing various
design of shock absorber seals for bicycles, WSI devoted to expand
the market domain and cooperated with several OE manufacturers of
motorcycle and vehicle shock absorbers. Behind customer's belief, WSI
keeps investing in R&D quality enhancement and has acquired approvals
from many international automotive tier 1 and 2 manufacturers of shock
absorbers through years.Application
The function of shock absorber is to damp the bouncing spring
oscillations caused by vehicle rolling or swaying on turns, bouncing on
rough road, braking and accelerating. Shock absorbers are developed to
do full justice to the vehicle and contributed to comfort and good driving
characteristics.
Shock absorber seals can be simple or complex according to the
applications including mono-tube, twin-tube, struts, gas-pressurized
for motorbikes, passenger cars, light, medium, heavy-dust trucks, and
industrial applications. Many modern shock absorbers use a combination
of pressurized gas and oil. Seals for  these application typically include
a primary seal lip, a contaminant exclusion lip, and a check valve to
prevent excess pressure build-up as the shock absorber is cycled. Shock  
absorber seal is positioned between piston rod and tube. It is important
that seals are not failure in use, since they must keep out contaminants
at the same time as preventing the oil from leaking out during the
reciprocating motion of the piston rod. WSI researches and develops
different elastomeric components with high-performance in resistance
to pressures, temperatures and shock absorber fluid or gas according to
customer's requirements.WSI's High Performance Shock Absorber Seals
WSI shock absorber seals are developed through critical design
considerations and quality requirements all according international
automotive standards.
WSI deploys dynamic properties of shock absorber seals through the
simulation of  original conditions, To support our customer's testing
needs in different applications, WSI can conduct a variety of dynamic
testing such as service life,stroke length, oil temperature, and rod
velocity of the shock absorber.
WSI Shock Absorber seals have the characteristics:
•Prevent leakage of the dampening fluid or gas
•Keep out external contaminants during the reciprocating motion of the piston rod
•High performance in resistance to wide temperature range
•Excellent resistance to high pressures
•Work well under high surface velocity
•Outstanding resistance to shock absorber fluid/gas