Overview and Personnel
Merit Screw Machine products boasts a
state-of-the-art inspection
and test laboratory as well as trained and
dedicated inspectors.
Our rigorous Quality Management system
adheres to the demanding
ISO9001:2008
standard. Merit utilizes automated visual
inspection
equipment
and real-time Statistical Process Control (SPC)
to ensure
conformance to even the most stringent of customer
specifications.
Our 5 person staff of knowledgeable Inspectors has
a combined
75+ years of experience
with Merit Screw Machine Products.
We welcome prospective customers to
visit our facility.
Above: Quality Technician John Colucci ensures product conformance
Left: A seasoned vet Pat Kowal hard at work checking the circular runout on an automotive component
Inspection Equipment
Merit houses well over 4,000 pieces of calibrated and catalogued gages and inspection equipment, including: Micrometers, Calipers/Verniers, Pin Gages, Thread Rings, Thread Plugs, Set Plugs, Bore Gauges, Drop Indicators, Optical Comparators, Concentricity/Runout Gages, and Microscopes. In addition to these "staples" of inspection equipment common to precision machined parts firms, Merit has invested significant capital into advanced inspection devices, including the following:

Brown & Sharpe Profile 30:
This is an automated visual inspection machine
in which motors slide and
rotate a component to generate a shadow profile that
precisely and
rapidly inspects outside diameters, lengths, concentricity, angles,
radii,
chamfers, to an accuracy of ±.00001" and ±.001°. A
component requiring
measurement on dozens of dimensions can be performed
in less than one minute.
Unit interfaces with a PC that
graphically illustrates conformance to, and location
within, a specified
tolerance range. Unit also interfaces with statistical process
control software for seamless data entry.
Real-time SPC "stations": At several
locations
throughout the production floor, Merit boasts a set of
various
micrometers, drop indicators, and optical
comparators which have a
digital readout capable of
instantly directing measurements to our SPC
software
package. This "Real-Time SPC" allows machine
operators to instantaneously monitor trends in processes
and make adjustments
accordingly.
Surface Finish Testers: An on-site
M4P Perthometer and Surfometer are used extensively in taking both
discrete and continuous readouts of the surface finish value of a
particular component. Specialized attachments allow readings to be
taken in grooves and holes.
Rockwell Series 500 Hardness Tester:
For checking hardness (B and C scale) and case depth, primarily on
heat-treated components. This is often done to verify
certifications sent to Merit by its vendors which perform heat-treating
and other secondary operations.
Coating Thickness Meter: Used
primarily for checking the thickness of polymer
coated parts, serves
as verification to Merit that outside coating operations match
specifications.
Force Gauge: Shimpo FGE-1X force
gauge allows inspectors to evaluate the necessary force required for
extraction or insertion of specified test pins into crimped or slotted
bores and drills.

Right: Dan Bujas programs the Profile30
Below: Control Chart sample - allows operators to correct processes in Real Time

Quality Control / Quality Assurance