Tushun AluSphere
low-pressure, gravity, and shell casting applications. With precisely controlled particle morphology, it significantly improves casting surface quality, dimensional accuracy, and mold reusability.
TUSHUN AluSphere 1#
Overview
TUSHUN AluSphere 1# is a high-purity, spherical ceramic sand engineered for the aluminum casting industry. With tight particle distribution, low thermal expansion, and excellent flowability, it helps foundries achieve dimensional accuracy, surface smoothness, and low scrap rates—especially in cold-box, no-bake, and 3D printed core processes.
Technical Specifications
Appearance: Black, highly spherical sand
Refractoriness: ≥ 1500 °C
Thermal Expansion (1000 °C): ≤ 0.15%
Bulk Density: 1.7 g/cm³
Mohs Hardness:7.5–8.0
pH Value:Neutral
Loss on Ignition (LOI): ≤ 0.1%
Al₂O₃ Content: ≥ 25%
SiO₂ Content: 30%-50%
Detailed Description
TUSHUN AluSphere 1# is designed specifically as ceramic sand for aluminum casting, offering superior thermal performance and grain stability for critical parts. As a trusted China supplier, we manufacture this material to tight quality controls, ensuring it meets the requirements of global aluminum foundries.
When used as foundry sand for aluminum, the media shows outstanding flow characteristics, allowing full cavity fill without erosion or binder blowout. Compared to silica-based options, this ceramic sand for aluminum casting delivers lower thermal expansion, reducing the risk of veining, cracking, or distortion in thin-wall geometries.
Foundries using cold-box or resin-coated systems value the sand’s roundness, which improves compaction and core strength. Many automotive and aerospace clients now rely on TUSHUN 1# as their preferred foundry sand for aluminum, especially for complex cores and high-precision parts.
Our position as a high-quality China supplier allows us to support bulk orders, AFS customization, and technical consultation for process integration. Customers report lower binder consumption and improved casting yield after switching to our ceramic sand for aluminum casting. The sand can also be reused across multiple cycles, making it a reliable and cost-effective foundry sand for aluminum application.
Applications
Aluminum engine blocks, transmission housings, inverter covers
Cold-box, shell, no-bake, and 3D printed aluminum cores
Automotive, aerospace, and energy castings with strict tolerances
Benefits
Low thermal expansion → minimizes defects and geometry distortion
High sphericity → enhances core/mold flow and uniformity
Clean collapsibility → reduces shakeout time and tool wear
Multiple-use potential → compatible with sand reclamation systems
Reliable sourcing → backed by experienced China supplier
FAQ
Q1: Why choose ceramic sand for aluminum casting instead of silica?
A: Ceramic sand offers much lower thermal expansion, better collapsibility, and smoother surface finish—ideal for aluminum parts requiring precision.
Q2: Can TUSHUN AluSphere 1# be reused?
A: Yes. With proper reclamation, the sand can typically be reused for 5–10 cycles while maintaining grain integrity and casting quality.
Q3: Does it perform well in cold-box and 3D printing systems?
A: Absolutely. Its round shape and consistent size distribution make it ideal for both traditional and digital mold-making technologies.