Various types of sand cores are shaped using the inner surface of core boxes with clay sand, sodium silicate sand, resin sand, etc., ensuring accurate dimensions.
Application Scope: Suitable for sand cores of all shapes, sizes, and production batches, but primarily used for single-piece and small-batch production.

Uses a specially designed scraping plate to shape cores, saving materials for core box manufacturing. However, the operation is cumbersome and inefficient.
Application Scope: Used for single-piece and small-batch production of simple-shaped sand cores. For some complex-shaped cores, a combination of scraping plates and core boxes can be adopted.

Compacts sand cores under pressure while applying micro-vibration, achieving high productivity. However, the machine structure is complex and generates noise.
Application Scope: Suitable for batch production of small and medium-sized clay sand cores.

Compacts sand cores via pneumatic or manual jolting. These machines are widely used but produce high noise, have low productivity, and require robust factory foundations.
Application Scope: Pneumatic jolting machines are suitable for mass production of large and medium-sized sand cores without coke block filling; manual jolting machines are used for small-batch production of small sand cores. Primarily applied to clay sand core manufacturing.

Precoated sand is blown into a heated core box and held for a specified shell-forming time. After forming a thin shell of the required thickness, the core box is turned upside down and shaken to remove excess sand, creating a hollow shell core. The cores offer excellent strength, permeability, precision, surface quality, and shakeout performance, with high accuracy.
Application Scope: Ideal for batch and mass production. Two main types of shell core machines are used: bottom-blow machines for small, simple-shaped shell cores; top-blow machines for complex, large, and medium-sized shell cores.

Core sand mixed with heat-curing resin and hardener is injected (blown) into a heated core box, then removed after hardening. The resulting cores are dimensionally precise, high-strength, and smooth-surfaced, with easy operation, high productivity, and good shakeout. However, it produces a pungent odor.
Application Scope: Best for mass production of small and medium-sized cores, with a recommended cross-sectional thickness of no more than 50mm. Thicker cores can be designed as hollow with a sand layer thickness of ~25mm. Widely used in automotive and tractor casting manufacturing.

Raw sand mixed with cold box resin is injected (blown) into a room-temperature core box, followed by a gaseous hardener to quickly cure the core. Residual hardener is purged with dry air before core removal. It offers high productivity—approximately double that of shell core methods—and allows the use of wooden or plastic core boxes, making it suitable for small-batch, multi-variety casting production. Cores have high precision, low surface roughness, and easy shakeout.
Application Scope: Suitable for manufacturing sand cores of all batches, complexities, and sizes. Widely used in automotive and tractor casting production.

Core sand mixed with resin and hardener is injected (blown) into a core box heated to ~170℃, then removed after hardening. For inorganic binders, mixed core sand is injected into the box and cured with 80–200℃ hot air. Compared to cold box methods, it uses less binder and has higher productivity but requires heating equipment. Compared to hot box methods, it saves energy and extends mold life. Inorganic binder cores are odorless, ensuring a better working environment.
Application Scope: Suitable for mass production of cores thicker than 50mm. Inorganic binder cores are primarily used in aluminum alloy casting production.

Sand particles are laid and cured layer by layer, 堆积 to form an integral core. No traditional core boxes are needed, offering flexible molding, high precision, and effective shortening of new product development cycles.
Application Scope: Particularly suitable for new product development, complex core fabrication, and small-batch casting production.