About Us
Chontan is a single source supplier of precast concrete accessories in China. Offers a wide variety of lifters and connectors suitable for all your precast needs. Supporting the precast and prestress industries for over 20 years.
Products include lifting anchor, transport anchor, threaded lifting socket, insulated panel anchor, cast in channel, coil and ferrule loop inserts, cast-in loop,formwork and scaffolding applications, and so on.
Make the precast concrete transport and build in an efficient, faster and safer way.
Quality Control
Products are developed and testedfor every imaginable application, such as tensile machines, low temperature impact machines, metallographic structure analysis, and so on, for the necessary static and dynamic tests.
All the items are performed extremely intensive tests - some automatic, some manual - to ensure that none leave our works that do not meet our own highly critical safety and effectiveness standards.
Material
All of the items are manufactured of high-quality materials from certified vendors. Before the first manufacturing operation, samples are taken and subjected to microscopy and hardness tests to analyze their structure, composition, and match with the needed values.
Inspection for dimensional
Products are firstly verified as they on the worktable to confirm that match the drawing dimensions. During production, special inspection tools are created to control the size.
Tensile test
Product is also performed to ensure safe use by from 30T to 300T universal tensile testers.
Experience, expertise and the receipts
Manufacturer, not a trading company
Supplying the precast and prestress industries for over 20 years from our own factory in Chengyang District, Qingdao. Production, quality control and export sit under one roof — which is why we can produce the process records behind a certificate, not just forward the certificate.
Our own test floor
- 30 T – 300 T universal tensile testers — pull-out and tensile verification
- Low-temperature impact testing — catches brittle behaviour before it ships
- Metallographic structure analysis and hardness testing
- Samples taken for microscopy before the first manufacturing operation
- Dimensional inspection against drawings, with purpose-made gauges in production
We publish the engineering, not just the price list
Our engineering blog covers lifting anchors, sockets, inserts, channels, magnets and formwork accessories in depth — with every limit attributed to the standard that sets it (EN 1992, EN 10204, EN 13101, DIN 405, VDI/BV-BS 6205, ACI 318), so you can check us against the primary source rather than trust us.
What we won't do
- We don't publish another manufacturer's load tables as our own data.
- We don't quote a rating without its conditions — concrete grade, embedment, edge distance.
- We don't invent a specification to win a quote. If we can't do it, we say so.
