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Silica Sol Investment Casting

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Silica Sol Investment Casting

What is Silica Sol Investment Casting?

Silica sol investment casting is a precision metal forming process that utilizes colloidal silica as a binder for ceramic molds. The process consists of the shells building up around wax patterns with layers of silica sol, zircon powder, and zircon sand. The fine grained molds made from these materials withstand high temperature (2000°C) and have resulted in castings with the good dimensional accuracy, a superior surface finish, and a precise reproduction of even complex features.

Why Use Silica Sol Investment Casting?

Our mid-temperature wax silica sol process solves the core problems of water glass casting: alkaline pollution, surface pitting defects, and limited material options, while offering higher precisions and reliability for critical industrial parts.
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Key Features

  • Complex geometries achievable
  • Ra 3.2-6.3μm as-cast finish
  • Low-cost molds
  • Micro-feature precision: Thin walls, small holes, sharp details
  • Minimal post-processing requirements
  • Wide material compatibility
  • No harmful alkaline components or irritating odors

Our Casting Strengths

We have imported our premium materials and automated shell-making production lines to provide superior silica sol investment casting. With our advanced process control and specialized equipment, we are able to create superb detail in the complex geometries. Our wide diverse experience across several different industries coupled with our quality management systems allows us to continuously produce high quality castings to meet the most stringent specifications for precision applications.

Technical Specifications

ParameterSilica Sol Casting
Weight Range10g - 280kg per casting
Surface FinishRa 3.2-6.3μm as-cast
Wall Thickness0.5mm (vacuum casting); 1.5mm (non-vacuum casting)
Size Limit1000*800*800mm
Dimension Tolerance±0.1mm, CT4-CT6

Need Help with Your Project?

We’re Here for You. Send us your technical drawings, and let’s discuss further.
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— Our Products—

Typical Casting Products for
Diverse Industries

Water Valve

Material

Stainless Steel, Carbon Steel and Low Carbon Steel

Industry

Valve & Pump

Wrench

Material

Stainless Steel, Carbon Steel and Low Carbon Steel

Industry

Hardware

Pump

Material

Stainless Steel, Carbon Steel and Low Carbon Steel

Industry

Valve & Pump

Valve

Material

Stainless Steel, Carbon Steel and Low Carbon Steel

Industry

Valve & Pump

Impeller

Material

Stainless Steel, High-temperature Steel, and Nickel-based Steel

Industry

Automotive

Gas Valve

Material

Stainless Steel, Carbon Steel and Low Carbon Steel

Industry

Valve & Pump

— Better Quality, Lower Costs—

Taking Quality Seriously: Our In-House Testing Equipment

As one of leading investment casting companies in China, we have invested 2 million RMB in in-house testing equipment to achieve superior quality and meet international standards.
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German Spectro Spectrograph
Chemical composition analysis to ensure material stability and adherence to international standards.
Swedish Hexagon CMM
Dimensional inspection with micron-level precision to verify tight tolerances in complex geometries.
Precision Calipers Inspection
Fast and accurate manual measurements during both initial and final dimensional inspections.
3D Scanning Inspection
Advanced digital geometry scanning to validate intricate shapes and detect dimensional deviations.
Salt Spray Testing Chamber
Corrosion resistance testing to simulate harsh environments, ensuring product durability and long-term reliability.
X-Ray Testing (Outsourced)
Internal defect detection for complex castings to ensure structural integrity and flawless quality.

More Than Just Casting:
Our Full-Service Capabilities

heat treatment

Complete Heat Treatment

BESSER offers in-house heat treatment to enhance your castings’ properties. We save you time and maintain quality by eliminating the need for outside vendors.
  • Solution treatment
  • Quenching and tempering
  • Carburizing treatment
  • Nitriding and nitrogen penetration
  • Alloy penetration treatment
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cnc

Advanced CNC Machining

Our 14 CNC machines turn castings into finished parts ready for your assembly line. We handle large components with high precision, reducing your supply chain steps and costs.
  • 3-axis and 4-axis machining centers
  • Maximum workpiece dimensions: 800×800×600mm
  • Precision tolerance capability: 0.01mm
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surface finishing

Superior Surface Finishing

We ensure your parts look good and perform well with 16 different surface finishing options. Our treatments include shot blasting, sand blasting, electrolytic polishing, acid cleaning, passivation, vibratory finishing, mirror polishing, wire drawing, painting, powder coating, zinc plating, dacromet coating, electrophoretic blackening, phosphating blackening, zinc-nickel plating, and chrome plating. Trust us for delivering one-stop solutions for all surface treatment needs.

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assembly

Integrated Assembly Services

Let us combine your cast parts with other components to create finished assemblies. This simplifies your supply chain and reduces your inventory management work.
  • Component assembly
  • Testing of functional assemblies
  • Comprehensive packaging for assembled components
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From Design to Delivery:
How to Work with Us

Ready to manufacture your parts? Send your drawings now and get a fast, professional response.
Free Consultation
1

Submit Your Drawing

Send us your technical files to begin evaluating your design requirements.
2

Feasibility & Quotation

Our engineers assess castability and provide a detailed quote within 24–48 hours.
3

Technical Alignment

We’ll confirm tolerances, key surfaces, and any special requirements via a video meeting.
4

Tooling & Sample Casting

We create custom tooling and produce initial samples for review and approval.
5

Sample Approval

You inspect and approve the samples; modifications can be made if needed.
6

Mass Production

Once approved, we move to full-scale production using our automated lines and machining centers.
7

Quality Inspection & Delivery

We perform full testing and deliver safely packed goods via DAP or FOB terms.

Partner with Us for Your One-stop Foundry Solution

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Our Capabilities

Materials

Industries

  • 32 North Yihuan Road, Zhangqi Cixi, Ningbo China 315313
  • Ning +49-163-937-5153
    Erica +86-158-7756-322
  • Ning@bessercast.com
    Erica@bessercast.com
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