68 Quality Control Checkpoints
Hengsheng operates 68 quality control checkpoints across the whole chain from quarry to site, holding the factory pass rate above 99.7%. Every batch retains test data and image records, traceable by batch number to a specific quarry and process.
Core Strengths
- Whole-chain coverage: 68 checkpoints span quarry, fabrication, finishing and dispatch, making quality measurable and traceable.
- Records retained: test data and images kept per batch, retrievable by batch number to quarry and process.
- Dispatch gate: factory pass rate of at least 99.7%, with flatness, dimensional deviation and gloss confirmed before dispatch.
- Dual verification: machine vision and manual review combined to reduce batch drift and missed defects.
Key Figures
Service Process
- Incoming inspection: check numbering, grade and hidden-crack results as blocks arrive.
- In-process inspection: checkpoints at cutting, forming and finishing stages.
- Finished inspection: flatness, dimensional deviation, gloss and surface defects.
- Dispatch confirmation: random sampling to AQL standard, pass rate of at least 99.7%.
- Archiving: test data and images bound to batch numbers for later verification.
Applications
- Public works acceptance requiring complete test records
- Prefabricated build-ups demanding tight tolerances
- Batch consistency control on large-area projects
- Aftercare and repair enquiries needing traceability
Sustainability & Certification
Testing covers environmental indicators as well as appearance and dimension: 95% water recirculation and more than 85% waste utilisation are monitored and recorded periodically.
Management systems are certified to ISO 9001 quality, ISO 14001 environmental, ISO 50001 energy and ISO 45001 occupational health and safety, with annual surveillance audits.
Deep Selection Guide
Do not treat testing as a slogan: ask three questions. How many checkpoints, where do they sit, and can the data be pulled by batch number? A supplier who answers all three has quality control you can verify. In practice, fix how test reports are delivered and the sampling standard in the contract, and sample by batch number during site acceptance. For public works or tenders, confirm the required third-party tests in advance.
- Selection criteria：Start from the actual conditions at Public works acceptance requiring complete test records, then narrow the options by Whole-chain coverage; colour is the last layer to consider.
- Specification & thickness：Set panel size and thickness first by QC checkpoints (68), then thicken or reduce locally for Prefabricated build-ups demanding tight tolerances, with cut-out positions noted on the same drawing.
- Acceptance & records：Make Records retained the focus of acceptance, checked and archived before dispatch; accept on site by number, with any dispute traceable to that batch.
- Sustainability：Testing covers environmental indicators as well as appearance and dimension: 95% water recirculation and more than 85% waste utilisation are monitored and recorded periodically. Write it into the acceptance terms and apply the local green building requirements alongside it.
What Hengsheng does with 68 Quality Control Checkpoints is join quarry-direct supply, smart manufacturing and global delivery into a single line where every step is documented, so project teams need not rely on judgement alone to weigh risk.
FAQ
- What do the 68 checkpoints cover?
- Grade and hidden-crack checks on incoming blocks, dimensional and tolerance checks during cutting and forming, gloss checks after finishing, and flatness, dimensional deviation and appearance checks before dispatch, all retrievable by batch number.
- How is the 99.7% pass rate calculated?
- It is derived from pre-dispatch sampling to the AQL standard, as the proportion of acceptable slabs in the sampled total. Rejects are removed in the factory and never reach site.