Leesh Holdings -Investment Casting Foundry specializes in silica sol investment casting (lost wax precision casting) for agricultural machinery parts. This precision casting process delivers components with CT5–CT6 dimensional tolerance and Ra6.3 surface finish, significantly reducing post-machining requirements. From seed opener discs and plow shares to harvester brackets and gearbox housings, we produce agricultural castings ranging from 0.01KG to 30KG in carbon steel, alloy steel, stainless steel, ductile iron, and gray iron — all backed by ISO 9001 quality control and multi-standard material compliance (GB, ASTM, SAE, AISI, DIN, BS, JIS, EN).
Why Choose Silica Sol Investment Casting for Agricultural Parts?
- Superior Dimensional Accuracy — CT5–CT6 tolerance ensures precise fit in assembled machinery, reducing rework and field failures.
- Excellent Surface Finish — Ra6.3 surface quality minimizes secondary machining, lowering unit cost for medium-to-large production runs.
- Complex Geometry Ready — Thin walls, undercuts, internal cavities, and intricate contours achievable without welding or assembly.
- Broad Material Flexibility — From wear-resistant alloy steels to corrosion-resistant stainless steels and high-strength ductile iron.
- Full Post-Processing — In-house heat treatment (quenching & tempering, annealing, normalizing) and surface treatments (electrophoresis, zinc plating, painting) available.
OEM Agricultural Casting Capabilities
- Annual capacity: 3,000+ tons of precision investment castings
- Engineering support: DFM (Design for Manufacturing) review, pattern/tooling design, material consultation
- Quality control: Spectrometer chemical analysis, CMM dimensional inspection, mechanical property testing, dye penetrant & magnetic particle NDT
- Lead time: Tooling 15–25 days; production 20–35 days (varies by order volume)
- Shipping: FOB ,CIF,DDP,DDU ; sea, air, or express courier
FAQ
**Q: What is silica sol investment casting?**
Silica sol investment casting is a precision lost-wax process using colloidal silica as the ceramic shell binder. It produces near-net-shape metal parts with tight tolerances (CT5–CT6) and smooth surfaces (Ra6.3) without the need for extensive machining.
**Q: What materials can you cast?**
Carbon steel, low-alloy steel (4140, 4340, 8620), stainless steel (304, 316, 17-4PH), ductile iron (QT400-18, QT500-7), gray iron (HT200, HT250), and high-chrome white iron for wear applications.
**Q: What is the minimum order quantity (MOQ)?**
Typical MOQ is 100–500 pieces per item, depending on part complexity and weight. We welcome both trial orders and serial production.
**Q: Do you provide samples?**
Yes. We can produce sample castings using rapid tooling or existing patterns. Sample lead time is typically 15–20 days.
**Q: Can you cast from customer drawings?**
Absolutely. Send us your 2D/3D drawings (PDF, DWG, STEP, IGES, SolidWorks), and our engineering team will provide a DFM review and quotation within 2–3 business days.
**Get a Quote in 24 Hours**
Send your drawings or part requirements to david.lee@leesh.cn or u
