For overseas projects, what measures do you adopt to guarantee consistent quality for batch production?

After full communication and customer approval, we can provide tool-free quick-release chain links and an open structure for you. These quick-release links let you quickly remove a section of the chain for cleaning or replacement without disconnecting the whole production line. The open structure ensures there are no dead corners where food residue or liquid can get trapped. All our designs follow relevant international standards, and we’ll also give you corresponding cleaning guidelines.

The key is using special-purpose heat-resistant steel material (e.g., ZG40Cr25Ni20) and precise heat treatment control. This material forms a stable oxide film on the surface with its high chromium (Cr) and nickel (Ni) content, and maintains the austenitic structure at high temperatures. We optimize its high-temperature creep strength by controlling the casting's cooling rate and performing solution treatment, ensuring it maintains dimensional stability and withstands thermal loads during long-term thermal cycling.

We can provide a combined "material – process – coating" solution tailored to this operating condition.
The chain is made of martensitic stainless steel or high-grade alloy steel, rather than relying solely on surface coating.
On this basis, a thick-layer Dacromet coating is applied, which can ensure good performance on salt spray resistance of more than 800 hours—far superior to conventional galvanizing. This can effectively resist erosion from palm fatty acids, high temperature and moisture.

If the modification is required because we did not meet the mutually confirmed technical specifications, we shall bear all related costs.
If the change is initiated by the customer as a voluntary design revision, we will assess a reasonble and nominal processing fee based on the modification scope, and clearly inform you of the impact on lead time (normally 3–7 working days). All costs and lead times will be confirmed in writing before any modification work starts, with no hidden charges whatsoever.

Absolutely. We believe this is a necessary step to make sure the project goes well. The review will be done together by our casting, machining and quality engineers, and mainly check three key points:
1) Design manufacturability: whether there are blind spots that are difficult to cast or machine?
2) Cost and process: Is the process the most efficient and economical one?
3) Risk assessment: Identify potential quality risks points and make plans in advance.
We will also send the review result and improvement suggestions to you as an official document for your confirmation at that time.

For precision machined parts made of ductile iron, precision cast steel, and cast aluminum, our conventional machining tolerances can be stably controlled within ISO IT6–IT9.
For critical mounting and mating surfaces, using high-precision CNC equipment, we can achieve accuracies of ±0.005 mm or even higher.
As we all know, the achievable precision depends on part dimensions and structural complexity. Therefor, we will make a detailed tolerance analysis and report during the evaluation stage of projects.