Quality Inspection

Great Quality Parts Every Time

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Material Identification And Quality Assurance

At Star Rapid, we have sophisticated measuring and testing equipment in-house to qualify all incoming raw materials, while our modern metrology lab ensures that your parts meet your exact specifications.

Quality Inspection And Testing

Making products with consistent high-quality requires good process control techniques combined with advanced equipment. At Star Rapid, we make sure every project includes these steps for quality assurance:

  • Design for Manufacturing review for all quotes provided
  • Contract review upon receipt of PO
  • Incoming materials inspection
  • First article and in-process inspection
  • Final inspection and testing with reports and certifications as required

Advanced Inspection Equipment In-House

Optical Emission Spectrometer (OES)

A testing apparatus that uses a current to electrically charge a sample of the material. The resulting discharge of plasma is unique for each element and this pattern can be read by the optical spectrometer to determine the metal’s complete composition.

There are many similar alloys and grades of metal available on the market, and some of them are mislabeled or fraudulent. We offer Positive Material Identification (PMI) for all incoming materials so you have complete confidence that you receive exactly what you ordered. We are one of the few services in China to offer this level of testing.

XRF Analyzer

X-Ray Fluorescence (XRF) analysis is a non-destructive testing (NDT) process by which materials such as metals, clothes, plastics, ceramics, etc. are exposed to low level, short-wave X-rays or gamma radiation. Each element reflects the emission with a different wavelength and a specially calibrated spectrometer can analyze the wavelengths to detect what elements are present and in what relative concentrations. The XRF analyzer can also detect banned materials under the REACH and RoHS legislation.

Faro Laser Scanning

Ideal for complex geometries, the Faro laser scanner quickly and accurately scans the surface of the part and creates a digital file that can be compared with the customer’s supplied CAD file for easy reference.

We also have a coordinate measuring machine (CMM) with a touch probe for making even more precise measurements of detailed features as required.

faro arm laser scanning

Faro Arm Laser Scanning

PolyMax Gun

There are many thousands of available plastic resins to choose from when making plastic injection molded parts. In order to ensure that the resin we use is of exactly the right kind, we’ve invested in a PolyMax analyzing gun. This device uses a beam of laser light to bounce off the surface of a test sample and read the unique signature given off by its molecular vibration. It contains a database of hundreds of plastic types in memory, and can be programmed with additional plastic types whenever the need arises. Just one more way we’re staying ahead of the competition to give you exactly the right material every time. And check out our blog to read more about how the PolyMax gun works.

PolyMax Plastic Inspection Gun

Our PolyMax Plastic Inspection Gun

Coordinate Measuring Machine

At its most basic a coordinate is a point, a fixed singular location in three-dimensional space. A series of points can be used to define the parameters of a complex shape. Therefore a coordinate measuring machine (CMM) is any device that is able to collect this set of points for a given object and to do so with an acceptable degree of accuracy and repeatability.

Coordinate Measuring Machine

Coordinate Measuring Machine


Our Mitutoyo Surfometer measures the surface roughness of an item, so we can ensure a specific surface finish is achieved. This device is also portable for greater convenience for our clients.

Surfometer Testing

Surfometer Testing

Visual Quality Standards

At Star, we have implemented a Visual Quality Standard for our finishing services to inspect painted finishes and ensure the consistency of cosmetic appearance. We also have a Visual Quality Standard for our Plastic Injection Molding Services. This ensures we have a consistent method for inspecting injection molded parts and helps us to go beyond the expectations of our customers.
ISO Certified Inspection Team

Our ISO Certified Inspection Team

ISO Certified

We are proud to be fully certified and compliant with ISO 9001:2008, ISO 14001 and BS OHSAS 18001. This demonstrates our commitment to continuous quality improvement, respect for our workers and for the environment. See our certificate ISO 9001:2008ISO 14001 and BS OHSAS 18001.

Visit Us

When customers visit our facilities they are always impressed by our inspection equipment and facilities. If you would like to see for yourself, check out more information and organize a factory tour.

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