What are the common casting production lines of Qingdao Nanchen?

Production of different castings requires matching suitable casting production lines. Combined with diverse working conditions in the casting industry, we will introduce four common types of casting production lines of Qingdao Nanchen, to help you understand the process characteristics and application scope of each line.

I. Resin Self-hardening Sand Line

The resin self-hardening sand line is applicable to the production of medium and large castings. Furan resin and curing agent are added into molding sand, which is filled into flasks and self-hardens at ambient temperature for molding. Centered on the sand processing system, the used sand after pouring goes through shakeout, crushing, scrubbing reclamation and cooling before returning to the sand silo. It is remixed by a double-arm continuous sand mixer to realize cyclic reclamation and reuse of used sand.

Core Advantages

1. Enables stable production of complex castings with high dimensional accuracy and good consistency of finished products;

2. High reclamation rate of used sand, greatly reduced consumption of new sand and stable production operation;

3. Wide process compatibility, covering the production of cast steel, cast iron and non-ferrous castings.

II. Horizontal Flaskless Molding Line

The horizontal flaskless molding line is designed for mass production of small and medium-sized workpieces. After sand shooting, squeezing, pattern withdrawal and mold closing by the molding machine, the flask is removed. Molds are directly placed on trolleys for transportation. The main molding machine interlocks with the rotary conveying line to achieve fast production cycle.

Core Advantages

1. Reduces flask procurement and turnover costs for more economical upfront equipment investment;

2. High automation level and fast production cycle to ease labor pressure;

3. Compact line layout for convenient routine inspection and maintenance.

III. Multi-contact Static Pressure Molding Line

The multi-contact static pressure molding line is used for clay-bonded sand molding of complex castings. Multiple sets of independent hydraulic contacts apply pressure separately to ensure uniform compaction throughout the mold. Equipped with an auxiliary rotary line, the production line realizes fully automatic flask grabbing, mold closing and core setting. It adopts a hydraulic volumetric metering synchronous pattern withdrawal mechanism for smooth pattern stripping without easy mold damage. The produced sand molds feature uniform hardness, and castings have good surface finish and high dimensional accuracy.

Core Advantages

1. Excellent forming effect for complex castings to effectively improve casting yield;

2. Fully automatic continuous production reduces reliance on skilled workers;

3. High equipment reliability, suitable for high-intensity mass production in workshops.

IV. Steel Shot Shell Molding Line

The steel shot shell molding line adopts precoated sand shell molding process. A core shooter fabricates thin precoated sand shells. After mold assembly, the shells are buried and filled with steel shot for pouring. Upon pouring completion, flask turnover and shot separation are carried out. Steel shot can be recycled after cooling and screening while waste sand is separated and recovered simultaneously. The whole line has high automation and quick product changeover. Shell sand boasts outstanding strength, permeability and shakeout property, delivering castings with few defects and high finished accuracy.

Core Advantages

1. Convenient product changeover, suitable for multi-variety production;

2. Recyclable steel shot keeps operating consumable costs under control;

3. Full-process automatic operation ensures stable quality of finished castings.

Foundries vary greatly in casting types, production capacity and plant conditions, so one standardized line can hardly meet all production requirements. Drawing on experience from numerous implemented projects, Qingdao Nanchen avoids applying fixed equipment schemes, carries out targeted planning according to on-site conditions, and provides customers with complete casting solutions matching their actual working conditions.