

Product Application: Forming of complex cavities inside aluminum castings. Features: 1. Compared to ring-shaped piston salt cores, irregular-shaped salt cores, through optimized process upgrades, can produce salt core products of any shape. 2. Irregular-shaped salt cores have higher strength than ordinary piston salt cores. 3. Compared to sand cores and ceramic cores, they are easier to clean and have better surface finish. 4. Widely applicable in the forming of cavities in aluminum alloy products. (1) New salt cores applied to all lightweight castings' internal cavities. Advantages: Currently, most lightweight castings use resin sand cores to form complex internal cavities. During later cleaning, sand sticking may occur locally, making it difficult to clean the internal cavities, which is an unavoidable technical problem. The development of new salt cores can easily solve the problem of difficult sand cleaning in castings. Salt dissolves in water, and only water flushing is needed to meet the technical requirements for removing internal core sand. The use of salt cores in the piston field is already a very mature technology. The new salt core is an extension of piston salt core technology. (2) New salt cores applied to difficult-to-machine areas of injection-molded products. Advantages: For products with difficult-to-machine areas in the later stages of injection molding, new salt cores can be used to directly form the parts that need to be machined later. Place the salt core in the mold before injection molding. This eliminates the technical difficulties of difficult machining in the later stages.
| HS Code | 3824.99 |
| Brand | EximNext |
| Material | Sodium Chloride NaCl 99.5%+ with Organic Binder System |
| Grade/Type | Industrial Grade / Special-shaped (Custom Irregular Geometry) |
| Purity/Composition | NaCl-based composite, typically >98% purity with binder additives |
| Size/Dimensions | Custom per customer drawing; typical range 10mm - 500mm per dimension |
| Standard | ISO 9001 manufacturing; customer-specific casting drawings required |
| Application | Forming complex internal cavities in aluminum die castings and sand castings; automotive piston, engine block, and cylinder head production |
| Packaging | Carton boxes with foam inserts; wooden crates for bulk export shipments; vacuum-sealed moisture-proof packaging |
| Origin | China (primary global production), Germany, Japan |
Special-shaped salt cores are water-soluble precision cores manufactured from high-purity sodium chloride with organic binders, designed for forming complex internal cavities in aluminum die castings and permanent mold castings. These cores enable creation of intricate cooling channels, oil passages, and internal geometries that are impossible with conventional sand cores. Widely used in automotive piston manufacturing, engine block casting, and heat exchanger production. Salt cores offer clean ash-free dissolution after casting, reducing post-processing requirements and improving casting surface quality. Export markets include Germany, Japan, South Korea, and Mexico where precision aluminum casting demand is strong.
| Business Type | Supplier |
| Year Established | Recently Joined |
| Employees | Contact Supplier |
| Annual Revenue | Contact Supplier |
| Main Products | View Products Tab |
| Major Markets | Global |
| Response Time | <4h |
| Response Rate | New Supplier |
Special-shaped Salt Core is available for wholesale import from Binzhou Zhengdao Mechanical Manufacturing Co., Ltd., a verified Supplier based in China. The current FOB price is $50 - $150 / kg (Approx. Negotiable). Minimum order quantity starts at 1 Bags. HS Code: 3824.99 — used for customs classification and import duty calculation. Key product specifications include 3824.99, EximNext, Sodium Chloride NaCl 99.5%+ with Organic Binder System.
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