# Longtai Casting

> Gray and ductile iron castings, cast and machined under one roof


## Posts

- [Machining: Plan Operations Around Drawing Tolerances](https://yz-longtai.com/insights/machining-process/): Machining operations are planned around the tolerances on the drawing and cut on high-precision CNC equipment, holding dimensional accuracy for assembly and service.
- [Melting: Tight Control of Chemistry and Pouring Temperature](https://yz-longtai.com/insights/melting-process/): Iron chemistry and pouring temperature are held tightly to the material standard, with spectrometer analysis, tensile testing and metallography confirming that castings meet mechanical property requirements.
- [Molding: Match Process to Part, Simulate Before Pouring](https://yz-longtai.com/insights/molding-process/): The casting process is selected to suit each part's size, geometry and appearance requirements. Casting simulation software models mold filling and solidification, predicting defects and refining the gating system to shorten development time and safeguard casting quality.

## Pages

- [Insights](https://yz-longtai.com/insights/): Molding, melting and machining, the three core processes, explained for buyers and engineers.
- [Contact](https://yz-longtai.com/contact/): Reach us by phone or email. Upload drawings through the form below, and our engineers will reply or quote within 72 hours.
- [About](https://yz-longtai.com/about/): Longtai started in 2001 as a small steel mill, moved into casting in 2007 and was incorporated as Yizheng Longtai Casting Co., Ltd. in 2011.
- [Equipment](https://yz-longtai.com/equipment/): Molding, melting, machining, inspection, painting and packing all run on our own equipment.
- [Castings](https://yz-longtai.com/castings/): We do not sell from stock. Every part is made to the customer's drawing.
- [Capabilities](https://yz-longtai.com/capabilities/): From your drawing to a painted, packed part, every step takes place at our plant in Yizheng.
- [Home](https://yz-longtai.com/): Casting, machining, painting and packing, all completed in-house.


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