High-precision components for industrial, food-grade, and heavy machinery applications.
In the modern food processing landscape, the demand for stainless steel food machinery castings has shifted from simple component acquisition to strategic partnership. Manufacturers require suppliers who understand the "Hygienic Design" philosophy, where every radius and surface finish must prevent microbial growth.
Food-grade stainless steel (predominantly 304 and 316L grades) is non-negotiable. Our precision casting process ensures zero porosity, which is critical for components like pump housings, valve bodies, and mixing blades that undergo intensive CIP (Clean-in-Place) cycles.
As a leading China factory, we align with international standards including FDA (U.S.), EHEDG (Europe), and NSF International. This ensures our castings integrate seamlessly into machinery exported to high-regulation markets.
Founded in 2014 and located in Weifang, Shandong, JUNLONG Machinery is a pinnacle of precision casting innovation. We specialize in transforming complex engineering visions into reality using materials such as carbon steel, alloy steel, and high-grade stainless steel.
Our infrastructure includes internationally advanced automated casting lines and physical/chemical analysis equipment, ensuring every batch meets the stringent mechanical properties required by global leaders in automotive, rail, and petroleum industries.
Why Precision Investment Casting (Lost Wax) is the industry standard for food safety.
Food machinery often requires intricate internal channels for cooling or fluid transport. Lost wax casting allows for the creation of internal cores that are impossible with traditional sand casting, ensuring no "dead zones" where food particles can stagnate.
Roughness is the enemy of sanitation. Our automated precision casting achieves a surface smoothness that significantly reduces post-processing grinding time, achieving the low Ra values required for pharmaceutical and dairy grade equipment.
Tight tolerances are essential for moving parts like rotary valves or gear housings. Our CNC machining center (equipped with vertical and horizontal centers) ensures a perfect fit, reducing friction and extending the lifecycle of the machinery.
| Parameter | Traditional Sand Casting | Junlong Precision Investment Casting |
|---|---|---|
| Material Options | Limited (mostly iron/bronze) | 304, 316, 316L, Duplex Stainless Steel |
| Dimensional Tolerance | ±0.5mm to 1.0mm | ±0.1mm to 0.3mm |
| Surface Roughness (Ra) | 12.5 - 25 μm | 3.2 - 6.3 μm (unpolished) |
| Min Wall Thickness | 5.0mm | 1.5mm |
China has evolved from a high-volume producer to a high-quality innovator in the casting sector. Factories like JUNLONG leverage the world’s most robust industrial ecosystem to offer unmatched lead times and cost-efficiency. Our proximity to high-grade steel mills and specialized logistics networks allows us to source raw materials with guaranteed chemical compositions at competitive price points.
For global enterprises, the "China Advantage" now includes digital transparency. We offer real-time quality tracking, from spectral analysis of the molten metal to ultrasonic testing of the finished part. This transparency builds the Trustworthiness (E-E-A-T) necessary for long-term international contracts. By choosing a China-based factory, procurement officers benefit from massive scale without sacrificing the precision required by European and North American engineering standards.
Navigating the regulatory landscape across borders.
Adherence to ASTM standards and FDA CFR Title 21 compliance for food contact surfaces. We support local US distributors with complete material traceability documentation (MTRs).
Alignment with CE marking and EN 10204 3.1 certification. Our engineering team is proficient in DIN and ISO standards, ensuring seamless technical communication with European OEMs.
We provide localized engineering consultation through our overseas partners in Germany, Italy, and Canada, bridging the time-zone gap for mission-critical projects.
Our stainless steel food machinery castings are deployed in environments ranging from extreme cold to high-heat pasteurization.
Hybrid casting, where 3D-printed sand molds or wax patterns are used for rapid prototyping, is reducing the "Time-to-Market" from months to weeks.
Transitioning to induction furnaces and implementing heat recovery systems to reduce the carbon footprint per kg of casting—a key requirement for ESG-focused OEMs.
Development of antimicrobial stainless steel alloys that inhibit bacterial growth even on non-polished surfaces, revolutionizing the food safety paradigm.
Insights for Procurement Managers & Design Engineers
We typically recommend Stainless Steel 316L. The "L" stands for Low Carbon, which prevents sensitization during welding and provides superior resistance to chlorides and organic acids commonly found in fruit juices and sauces.
We utilize X-ray inspection and magnetic particle testing (MT) to ensure internal structural integrity. For food machinery, we also perform pressure testing to verify that there are no leak paths within the casting.
Yes. Our in-house polishing workshop can achieve finishes up to Ra 0.4 μm (Mirror Polish) and we offer electropolishing services to further enhance corrosion resistance and cleanability.
Mold manufacturing generally takes 15-25 days. Once the mold is approved, initial samples are provided within 7 days. Mass production lead times range from 30 to 45 days depending on complexity and volume.
Reliable components for diverse industrial sectors.
Partner with Junlong Machinery for precision castings that exceed global standards.
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