Quality Control
Herrick Filter's Design may be copied but Never the Quality. The
goal of our Quality Control Program is to insure that the
filters leaving our plant are consistently of the highest
quality we are capable of producing. The program features test
which defines functional performance of the product in various
angles. Raw materials are thoroughly inspected and tested in our
laboratory to insure that they meet our demanding
specifications. Materials that don't measure up to the
specifications are rejected. At every phase of production, every
line of filters undergoes frequent and rigorous inspection and
testing to insure that our filtration products will deliver
heavy-duty performance.
Integrating Total Quality Management
throughout the organization enabled us to ensure minimum variance from
filter to filter and from order to order. But state of the art quality
systems alone are not enough to ensure high quality filtration products.
We believe high quality raw materials coupled with correct manufacturing
techniques determine the filtering efficiency and thus product
performance.
In the field of OEM automotive
filtration, knowing engine manufacturer’s quality standard specification
and having the up-to-date instruments and facilities to test these
standards guide our R&D and Quality Control people to continuously
improve our product quality. We, as an OEM filter supplier to Japanese
car makers, try to exceed car manufacturers’ requirements to ensure
convenient and trouble-free use of our products.
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Paint Quality
Test |
Adhesion cross cut test
Thickness coat micron test |
|
Rubber Gasket
Test |
Rubber hardness test
Rubber hot oil resistance
test |
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Filter Paper
Test |
Air resistance
Burst resistance
Paper pore size |
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Spin-on
Filter Test |
Pressure release valve test
Open Pressure for Anti-
drain back valve
Pressure loss at rated flow
Applied pressure at
leakage test
Applied pressure at
breaking test
Anti-vibration strength
Leakage test at low temp.
Pressure drop test
Impulse pressure test
Vibration test |
|
Filter
Element Test |
Air flow test
Bubble test
Particle retention efficiency
test |
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Product Quality