We can undertake the production and machining of cast iron and cast steel parts made from various materials according to customer requirements, including ductile iron, gray iron, carbon steel, stainless steel, heat-resistant steel, high manganese steel, medium chromium wear-resistant steel, and wear-resistant low-alloy steel. Our products are widely used in automobiles, mining, construction machinery, various water supply equipment, and other fields. Our factory has an annual production capacity of over 10,000 tons of cast steel, cast iron, and ductile iron. Our products are sold to more than 20 countries, including Germany, the United States, South Korea, and Japan.
Ductile Iron Grades
QT900-2 | QT800-2 | QT700-2 | QT600-3 |
QT500-7 | QT450-10 | QT400-15 | QT400-18 |
Gray Iron Grades
HT 100 | HT 150 | HT 200 |
HT 250 | HT 300 | HT 350 |






Xinlong is a professional manufacturer dedicated to providing high-quality sand casting products.For many years, our sand casting foundry has upheld the core values of exceptional quality, innovative technology, and customer satisfaction, delivering premium products and satisfactory services to our clients.

We are equipped with advanced production facilities and a team of experienced craftsmen, enabling us to meet sand casting demands of various scales and complexities. Whether for small batches or large-scale production, we offer customized solutions to ensure your products meet the highest quality standards.
Xinlong is equipped with multiple advanced melting furnaces of various specifications, allowing us to meet a wide range of customer requirements.At the same time, JinHong is equipped with a variety of advanced inspection devices, fully capable of meeting the quality control and testing demands throughout the casting process.


Heat Treatment
Heat treatment is a metal thermal processing technique that involves heating, holding, and cooling metal materials in their solid state to alter the chemical composition and microstructure of their surface or interior, thereby achieving desired properties.
Xinlong is equipped with multiple advanced heat treatment facilities, enabling us to meet a wide range of customer requirements for heat treatment processes.
Xinlong Machinery has two major production workshops, a casting workshop and a machining workshop, of which imported equipment accounts for more than 80%.We can undertake the production of all large, medium and small parts, providing one-stop service from casting to processing.
Among them, the foundry workshop has more than 20 sets of production equipment, including: a resin sand production line, three 1T medium frequency induction furnaces, one 3T electric furnace, one 5T electric furnace, and 5 sets pf large hook-type shot blasting machines, 4 sets of bogie-hearth electrical resistance heat treatment furnaces, etc.
The machining workshop has more than 30 major processing equipment, such as Japan's Mazak 800 horizontal machining center, South Korea's Daewoo 630 horizontal machining center, Japan's IKEGAI130 CNC boring and milling machine, 2m*1.4m Taiwan's Welle gantry machining center, Japan's SNK- 4M pentahedral gantry machining center, Taiwan KALO Gaofeng vertical comprehensive machining center, etc.
In addition, there are nearly a hundred CNC machine tools and ordinary machine tools such as CNC lathes, milling machines, boring machines, grinders, drilling machines, and planers.









Xinlong has high-end testing equipment and complete quality testing methods to monitor the entire process from raw materials to finished products to ensure the continued stability of product quality.Xinlong has established a complete internal quality management system to improve quality management levels, and its products have reached national, European and American standards.
The main inspection equipment includes CMM, metallographic microscope, universal testing machine, direct reading spectrometer, ultrasonic flaw detector, magnetic particle detector, thickness gauge, etc.Complete physical and chemical analysis and testing equipment can meet customers' comprehensive requirements for the quality and physical and chemical properties of different products.
At Xinlong, we pride ourselves on delivering high-quality, customized casting solutions with a strong focus on customer satisfaction. Here's why we stand out.
Competitive price:All products marketed are cast and machined at the factory. Therefore, competitive costs have been put in place for direct shipping to clients.
Reliable quality:We are an IATF16949 certified casting manufacturer and strictly control quality to meet the most stringent of standards.We bring professional know-how to every project with over ten years of experience in automotive parts.
Professional: We bring professional know-how to every project with over ten years of experience in automotive parts.
Fast shipment: We are able to manage it very efficiently having multiple casting lines and more than ten machining lines so that orders can be processed and dispatched very quickly.
Excellent service: Our sales staff has over a decade of combined experience, ensuring seamless communication and support in the global market.
Flexible production:Custom manufacturing according to client drawings for tailored solutions to diverse needs.
Choose Xinlong for a partnership built on competitive value, quality, and expertise tailored to meet the unique requirements of your business.