Gantry CMM
Hexagon, 5000 × 4000 × 2500 mm, 0.001 mm resolution.
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Quality Control
Planned before machining, checked at every operation and documented on delivery. Our metrology, NDT and materials laboratory is in-house, so test results never wait on an outside lab.
5000 × 4000 × 2500CMM volume, mm
24Inspection & test methods
100%Critical dimensions checked
3.1EN 10204 certificates
Inspection at every stage
Five checkpoints between material and shipment
Defects cost least when they are caught early. Each order passes five defined inspection gates, and a part cannot move to the next stage until the previous gate is signed off.
Incoming inspection
Certificates reviewed; chemistry verified by spectrometer; forgings and plate ultrasonically tested where specified.
First article
The first part is fully measured against every drawing dimension, and the report is sent for your approval before the batch runs.
In-process checks
Operators measure features at the operation that creates them and record results on the process quality card.
Final inspection
100% of critical dimensions, plus CMM or laser tracker measurement, NDT, hardness and visual checks.
Documentation
Inspection report, certificates and test records compiled into one dossier and released with the shipment.
Quality control
Planned, measured, documented
Quality starts before the first cut. Every new part goes through a planning sequence based on automotive APQP: critical characteristics are identified from your drawing, a process flow and PFMEA are prepared, and a control plan defines where and how each feature is checked.
In production, each operation is recorded on a process quality card that travels with the part. Final inspection covers 100% of critical dimensions, with large parts measured on the gantry CMM or by laser tracker.
- Bill of materials
- Requirements summary
- Critical characteristics list
- Raw material specification
- Process flow chart
- PFMEA
- Control plan
- Process sheet & tooling plan
- CNC program register
Dimensional measurement
Bridge CMM
1500 × 3000 × 1000 mm with PC-DMIS GD&T reporting.
Laser tracker
FARO Vantage 3D measurement of large weldments in situ.
3D scanning
Castings and weldments compared to CAD.
Roughness & coating
Ra/Rz roughness and coating thickness checks.
Non-destructive & function testing
Fluorescent MT bench
Surface cracks on shafts, gears and welds.
On-site MT
Magnetic particle testing of heavy castings.
Ultrasonic testing
Volumetric NDT of forgings, castings and welds.
Dynamic balancing
Rotors, bowls and impellers to ISO 1940.
Air-tightness
Leak testing of housings and pressure parts.
Chemical analysis
Chemistry verified before machining
Every heat is checked against its mill certificate. Out-of-spec material is quarantined before any machine time is spent.
Spark OES
NCS SparkCCD 7000 for steels and alloys.
Direct-reading OES
Composition of steels and non-ferrous alloys.
ICP-AES
Trace and alloying elements by plasma emission.
C/S & O/N/H
LECO analyzers for carbon, sulfur and gases.
Mechanical & metallurgical testing
Tensile testing
Strength, yield and elongation at room temperature.
Mechanical testing
Servo-hydraulic tensile, compression and bend tests.
Hot tensile
Strength at service temperature.
Creep testing
Creep and stress-rupture for high-temperature alloys.
Impact testing
Low-temperature Charpy impact toughness.
Hardness
Rockwell and Brinell hardness surveys.
Friction & wear
Wear resistance of surfaces and coatings.
Metallography
ZEISS inverted microscope for microstructure.
Image analysis
Case depth, grain size and inclusion rating.
Testing laboratory
Specimen preparation and mechanical testing.
Supplied with every order
Dimensional inspection report, material certificate (EN 10204 3.1 on request) and heat-treatment record.
Supplied when specified
MT, UT and PT reports, hardness surveys, CMM reports, chemical and mechanical test reports, balancing certificates, coating reports and FAI.
Third-party inspection
SGS, BV, TÜV, DNV or your own inspectors are welcome to attend witness points and final release at our works.
Quality FAQ
Questions about inspection
Tell us your inspection plan and we will build it into the control plan before production.
Discuss requirementsDo you perform first article inspection?
Yes. The first part of every new order is fully measured against the drawing, and the first article inspection report is sent for customer approval before the rest of the batch is produced.
Which non-destructive testing methods do you offer?
Magnetic particle testing on a fluorescent MT bench, ultrasonic testing with digital flaw detectors, penetrant testing and visual inspection. NDT is applied to forgings, castings and full-penetration welds according to your specification.
What material tests can your laboratory perform?
Chemical analysis by direct-reading OES, ICP-AES and carbon-sulfur and O/N/H analyzers; tensile testing at room and elevated temperature; creep and stress-rupture; impact; hardness; friction and wear; and metallographic examination of microstructure, grain size, case depth and inclusions.
Can third-party inspectors witness inspection?
Yes. SGS, BV, TÜV, DNV and customer inspectors are welcome to attend witness and hold points, first article inspection and final release at our works.
How are non-conforming parts handled?
Non-conforming parts are tagged and quarantined, the deviation is reported to the customer, and parts are only reworked or released with written approval. Root-cause analysis in 8D format is available on request.
Request a quote
Send your drawings. Get a price and lead time.
Email sales@symachiningparts.com or message us on WhatsApp at +86 189 1530 7612. All drawings are treated as confidential.