Custom Investment Casting Manufacturer
Investment Casting Manufacturer for Precision OEM Parts
Supro MFG is a China-based investment casting foundry producing precision lost-wax castings in 250+ alloys — from wax pattern and ceramic shell through machining, finishing and inspection. We review your drawing, alloy, tolerance and application before quoting, so the casting route fits the part, not the other way around.
Silica sol and water glass processes, ±0.15 mm as-cast tolerance, Ra 3.2 surface finish, and full material and dimensional reports for OEM buyers.
Investment Casting at a Glance
- Silica sol & water glass lost-wax casting
- Stainless, carbon/alloy steel, aluminum & copper — 250+ alloys
- ±0.15 mm tolerance · Ra 3.2 · casting weight 10 g–80 kg
- In-house CNC machining, heat treatment & finishing
- CMM, spectrometer, X-ray & NDT inspection reports
Fundición a presión de metales
Fundición por cera perdida
Fundición en arena
Fabricación de moldes a medida
Mecanizado CNC de precisión
fundición de metales por colada de precisión
Fundición por cera perdida is one of the most important casting processes of Supro metal casting foundry, with a complete internal foundry workshop, from product design, mold design, mold processing, precision casting, cnc machining, quality inspection, packaging and transportation, etc. one-stop On-demand manufacturing services.
Nuestro fundición a la cera perdida process includes: Water Glass Investment Casting and Silica Sol Investment Casting, applied in different product designs and cost constraints, to create precise, complex and smooth surface casting parts, closer to the final application shape, reduce precision CNC machining the cost of.
Supro Metal foundry has 25 years of casting experience, whether it is precision casting prototypes, large casting parts, mass casting or casting parts with complex structures, we can rely on professional fundición de metales technology and advanced casting equipment to meet your needs, on time Delivery of high quality cast parts.
Investment Casting Processes
Four Investment Casting Routes for Different Parts
The right process depends on part size, surface requirement, geometry and cost target. We match the route to your part rather than pushing every project down one line.
Silica Sol Investment Casting
Silica sol investment casting is a casting process that is widely used in stainless steel and alloy steel casting parts. Silica sol is used as a binder to build a ceramic shell on the outer surface of the wax mold. It has the characteristics of high precision (CT4~CT6) and good surface finish. The foundry field plays an important role.
Supro MFG is a professional investment casting companies, we utilize silica sol casting for casting parts such as high temperature heat resistant alloys, heat resistant steels, stainless steels, carbon steels, low alloys, aluminum alloys and copper alloys.
Water Glass Investment Casting
Water glass investment casting is a casting process in which water glass is used as a binder to wrap the ceramic shell of the wax mold. The accuracy is better than that of sand casting, but the surface finish is poor. It is suitable for parts with heavy weight or no strict requirements on the external surface. .
At Supro MFG, we rely on water glass investment casting with low material cost and high forming efficiency for part casting of heavier or stronger products with more complex shapes. Such as: agricultural machinery, gears, large bases, and civil engineering components.
DLP 3D printed wax investment casting
3D printing wax investment casting is an advanced casting process that fills the gap. It can quickly build SLA models through 3D printing technology to meet the casting needs of small batches, high precision and low cost, reduce the investment in molds and production cycles, and increase the demand for rapid prototyping and production. Small batch casting brings huge economic benefits.
As an advanced investment casting company, Supro MFG provides high-precision SLA 3D model casting services, providing cost-effective metal casting solutions for casting prototypes and small batch castings. Such as: precision gears, jewelry, models, small art sculptures, etc.
vacuum investment casting
Vacuum investment casting is the process of completing precision casting in a vacuum state, which can effectively prevent the metal solution from rolling in the ceramic cavity and the pores generated after bursting, which brings internal defects and complex details that cannot be filled to the metal casting.
Supro Investment casting companies provide vacuum investment casting services for thin walled castings as well as castings with intricate details, ensuring that the castings maintain high precision and a very smooth surface.
Visit Supro Metal Investment Casting Foundry
Diseño - Prototipo - Moldes - Fundición
Supro Metal Foundry is China leading metal investment casting manufacturer, founded in 1997, with continuous upgrading of casting technology and replacement of advanced casting equipment, we have become an industry-leading casting enterprise, covering an area of 8,800 square meters, with three castings workshop, a precision cnc machining and surface coating workshop, has 120 technical employees, 18 quality engineers, and 17 core company management. Provide stable metal fundición a la cera perdida proyectos de abastecimiento para más de 3.800 empresas compradoras de China y de todo el mundo.
Whether rapid fundición a la cera perdida Para la fundición de gran volumen, contamos con amplias capacidades de fundición, que incluyen: diseño y optimización de productos, diseño y fabricación de moldes, proceso de fundición de metales, control de calidad, mecanizado CNC de precisión, pruebas de materiales y propiedades físicas, recubrimiento de superficies, así como servicios integrales de fundición de metales, tales como empaque y transporte.
Factory capacity: 3 casting workshops, 8,800 m² facility, 120 technical staff, 18 QC engineers. Capable of producing parts from 50 g to 50 kg+ per piece. Silica sol precision casting achieves CT4-CT6 tolerance (±0.15 mm) with Ra 1.6-3.2 μm surface finish. Water glass casting for heavier parts at lower cost (CT6-CT8). In-house CNC machining, heat treatment (solution + aging, quench + temper), and surface finishing for assembly-ready delivery.
Supro also provides fundición de acero inoxidable y copper casting for complementary alloy requirements.
How Ceramic Shell Investment Casting Works
From Wax Pattern to Inspected Casting
Every project follows a controlled lost-wax sequence. Knowing where your part sits in this flow makes design review, machining allowance and lead time easier to plan.
1.
Wax Pattern & Tree
Wax is injected (or DLP-printed) and assembled into a tree for batch casting.
2.
Ceramic Shell
Repeated silica-sol or water-glass dipping builds a strong ceramic shell.
3.
Dewax & Pour
Wax is melted out; molten alloy is poured — under vacuum where required.
4.
Cut, Machine & Inspect
Shell removal, cut-off, CNC machining, heat treatment and final inspection.
Capabilities & Tolerances
Investment Casting Specifications
Typical ranges below. Final tolerance, wall thickness and finish are confirmed against your drawing and alloy before quotation.
| Parameter | Silica Sol Route | Water Glass Route |
|---|---|---|
| Linear Tolerance | CT4–CT6 (≈ ±0.15 mm typical) | CT6–CT8 |
| Surface Finish (Ra) | Ra 1.6–3.2 µm | Ra 6.3–12.5 µm |
| Min. Wall Thickness | from ~2 mm | from ~4 mm |
| Casting Weight Range | 10 g – 30 kg | 0.5 kg – 80 kg |
| Typical Use | Precision, thin-wall, cosmetic parts | Heavier / structural parts, cost-sensitive |
| Prototype Lead Time | DLP wax: ~7–15 days | Confirmed at RFQ |
Materials · 250+ Alloys
Investment Casting Material Solutions
Investment casting suits a wide range of ferrous and non-ferrous metals. If the alloy is not fixed, our engineers can help you select the right one for corrosion, strength, wear or temperature requirements.
fundición de precisión de acero inoxidable
fundición de precisión de acero
aluminum investment casting services
copper investment casting
China Supro fundición a la cera perdida Foundry
what is precision investment casting ?
Metal Fundición por cera perdida, also known as: lost wax casting, is one of the popular metal precision casting processes in the manufacturing industry. The industrial or household wax is molded through a mold, connected into a tree-like structure, and a multi-layer ceramic shell containing silica sol or water glass is wrapped on the outer layer. Metal casting is performed after drying.
Investment casting parts have many advantages to accurately create complex structure of product casting structure and shape, as close as possible to the final shape, compared with traditional fundición en arena, investment casting parts are more accurate in size and have a better surface finish to reduce precision processing cost.
- Offers greater flexibility in design.
- Provides more details on complex structures.
- Affordable low cost moldes de fundición.
- Multiple alloy options to enhance the performance of cast piezas.
- Surface finish Ra 3.2.
- Precision tolerance Min ±0.15mm.
- High-volume casting maintains consistent high-quality delivery.
Custom investment casting manufacturers
¿Estás modernizando equipos antiguos? ¿No tienes planos de diseño de las piezas?
Metal fundición a la cera perdida Los modelos son fundamentales en la etapa inicial de cualquier proyecto. Sin embargo, ya sea para creaciones innovadoras de emprendedores o para la modernización de equipos obsoletos, la falta de planos de diseño de piezas o de modelos 3D representa un gran desafío para muchos ingenieros e innovadores. Esto deja a numerosos clientes desorientados, sin saber cómo proceder con sus proyectos de fundición de metales.
Supro MFG se especializa en productos metálicos hechos a la medida investment casting part design and foundry techniques, enabling us to actively engage in the product design phase. Based on your functional requirements and environmental constraints, we provide timely professional guidance and refine preliminary designs for investment castings, steering projects towards greater cost-effectiveness.
Diseño y optimización de productos – 3D Impresión Rapid Prototyping – Prototype investment Casting – Installation & Testing
Metal investment casting Product Design & Optimization
Ofrecemos servicios de metalurgia de manera proactiva soluciones de diseño de componentes de fundición para usuarios que no cuentan con planos de diseño o que tienen esquemas incompletos. Ya sea que solo tengas un concepto o un simple boceto dibujado a mano, podemos optimizar el diseño de tu proyecto desde la perspectiva de la funcionalidad de la aplicación.
Esto incluye: escaneo 3D, medición manual, medición con máquina de medición por coordenadas (CMM) y más. Seguiremos trabajando hasta crear una documentación de diseño completa. Este enfoque te ahorrará costos de desarrollo y garantizará un proceso sin contratiempos.
3D printing rapid wax prototyping
We provide industrial-grade, high-precision 3D printing rapid prototyping services servicios para evaluar la racionalidad del diseño y la funcionalidad de sus productos, o para crear rápidamente modelos de cera como preparación para la posterior fundición rápida.
The primary 3D printing technologies involved in prototipado rápido are:
- Impresión en nylon con SLS PA8200
- Impresión con resina fotopolimérica SLA
- Impresión en nailon PA12 negro de MJF
- SLM aluminium and acero inoxidable metal printing
- Impresión rápida de modelos en cera mediante DLP
Para solicitar cotizaciones de impresión 3D, por favor proporcione STL, STP, STEP, XTP, IGES u OBJ archivos de formato creados en programas de diseño 3D como ProE/UG/3DMAX/MAYA/ZBrush/Rhino.
Metal prototype investment casting services
supro MFG Ofrece servicios de fundición para la creación rápida de prototipos, lo que te permite avanzar en el diseño de piezas prototipo a través de las fases de prueba sin tener que invertir en moldes costosos y complejos. Mediante el uso de tecnología avanzada de impresión 3D de moldes de cera (impresión 3D DLP), imprimimos directamente modelos 3D de cera a partir de archivos CAD. A continuación, se forman cavidades de molde de precisión utilizando yeso, lo que permite una validación del diseño más rápida y eficiente. Esto garantiza que el producto final cumpla con tus especificaciones y evita inversiones mal orientadas.
Looking for a reliable investment casting manufacturer?
- Podemos ayudarte a optimizar el diseño de tus productos y a reducir costos.
- Podemos ayudarte con alta calidad y gran volumen piezas de fundición.
- Podemos entregar a tiempo y conseguir más oportunidades en el mercado de ventas.
- Te beneficiarás del servicio de fundición de metales de Supro MFG.
China Supro fundición a la cera perdida manufacturers
metal investment casting quality control
Create
functional and aesthetic vision
for high-quality
metal investment casting parts.
- Inspección de defectos superficiales.
- Inspección de inclusión.
- Interno defectos de fundición.
- Formación de defectos de enfriamiento.
We value the high quality delivery of precision metal investment castings, a professional quality control team monitors all casting processes including: surface defects, internal defects, dimensional defects and material composition.
Prestamos mayor atención a la funcionalidad y la estética del producto, lo que incluye: estanqueidad al aceite y al aire, recubrimiento superficial (color personalizado), pulido, pintura, etc.
- Inspección del aspecto y la estructura.
- Inspección de calidad dimensional.
- Detección del tamaño de la broca en máquinas de medición por coordenadas (CMM).
- Detección de la composición química (espectroscopia).
- Pruebas de propiedades mecánicas.
- Detección destructiva.
- Pruebas no destructivas (PND).
- Armonización y pruebas.
Investment Casting FAQ for OEM Buyers
These questions cover MOQ, tolerance, material choice, cost, inspection and post-casting machining for custom investment (lost-wax) casting.
What is the minimum order quantity (MOQ) for fundición a la cera perdida?
What tolerance and surface finish can investment casting achieve?
How much does investment casting cost per kg?
What materials can be investment cast?
What is the difference between silica sol and water glass casting?
What is the difference between investment casting and sand casting?
Can you provide CNC machining and heat treatment after casting?
What inspection reports can you provide?
What file formats do you accept for an RFQ?
Get a Factory-Direct Investment Casting Quote
Qué incluir en tu solicitud de cotización
- 2D / 3D files: PDF, DWG, DXF, STEP, STP, IGES, OBJ
- Alloy grade or target mechanical properties (tensile, hardness)
- Quantity, annual volume, and order pattern
- Tolerance class (CT4-6 for silica sol / CT6-8 for water glass), surface finish, machining & inspection needs
- Application, working load, temperature range, and corrosive environment
- Required certifications: ISO 9001 / IATF 16949 / CE / customer-specific standards
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