Sand casting technology

Sand casting is the most widely used metal casting process in manufacturing. It is used to make large parts (typically steel and iron, but also Bronze, Brass, Aluminum). Sand castings can range in size from very small to extremely large. Some examples of items manufactured in modern industry by sand casting processes are engine blocks, machine tool bases, cylinder heads, pump housings, valve and etc..


Green & Resin Sand Casting
Green sand casting offers a cost-effective route and is the most traditional sand casting processes. This renders it a common choice amongst manufacturers and project leads. The material used is sand that’s bonded by water and clay—and best of all, it’s recyclable.

In the resin sand casting process, resin and sand are first mixed together. Following that, the mixture is self-hardened through chemical reaction to produce exceptionally hard molds.

Lost Foam Castings
Lost foam casting is another investment casting method that differs from lost wax casting. The Lost Foam casting process was first started in year 1958 when H.F. Shroyer was granted a patent for a cavity-less casting method, using a polystyrene foam pattern embedded in traditional green sand. The polystyrene foam pattern left in the sand is decomposed by the poured molten metal. The metal replaces the foam pattern, exactly duplicating all of the features of the original pattern. Like water glass investment casting method, a pattern is required for pouring in casting, because it is evaporated (“lost”) in the process.

Shell Mold Sand Casting
Shell mold casting is a metal casting process similar to sand casting, in that molten metal is poured into an expendable mold. However, in shell mold casting, the mold is a thin-walled shell created from applying a sand-resin mixture around a pattern. The pattern, a metal piece in the shape of the desired part, is reused to form multiple shell molds. A reusable pattern allows for higher production rates, while the disposable molds enable complex geometries to be cast.

Sand casting Bacsoont China

Grey iron :    ASTM A48 Cl.20,25,30,35,40,GG20,25,30,35
Ductile iron:  ASTM A536 60-40-18, 60-42-10,70-50-05,GGG40,GGG50,GGG60
Carbon steel:    WCB, WCC,LCC, LCB, 1020, 1025,1040, 1.0619;Sand casting Bacsoont China
Alloy Steel:      8620, 8630, 4140, 4130, 4320
Stainless steel:  ASTM A351 CF8, CF8M, CF3, CF3M
Manganese steel:  ASTM A128 Gr. A, B,C,D,E

Sand casting Bacsoont China

The Advantages of Sand Casting:

The materials used in the process itself are relatively inexpensive and are also able to resist deformation during heating and capable of holding its required detail.
This process is capable of producing small, precision parts as well as large parts. Learn more about this by visiting our Ultra Large Sand Casting page.
The sand casting process can be used to cast both ferrous and non-ferrous metals.
When compared to other metal casting processes, the time required to prepare the mold is relatively short.
This metal casting process is capable of handling a more diverse range of products when compared to other casting processes.
When a uniform compaction is achieved, the sand casting process is capable of producing extremely close tolerances.
The sand used in the process can be reclaimed, helping to reduce the waste produced by the sand casting foundry.
The sand casting process is relatively simple, making it a great process for mechanization.


Qingdao Bacsoont Industry and Trade Co., Ltd.’s workshop of forging covers an area of 66,000 Square meter, and has a building area of 14,000 Square meter. Currently, we have 160 employees, owns fixed assets reaching RMB 35 million, and boasts an annual output value of RMB 80 million and creates more than RMB 4 million taxes.

Heavy forging-Bacsoont

Our forging workshop is a professional manufacturer who focusing on forging and machining. Providing supporting products for engineering, electrical and chemical machinery. Like shaft, ring, wheel, cylinder, block, sleeve, pin, plate etc class products.

Heavy forging

Heavy forging

Very fortunate to cooperate with some world-famous companies, like: Siemens, Putzmeister, FLSmidth, SANY, XCMG, MSP/Drilex,etc. These cooperation bring us more than profit, what’s more, quality is life. Within our coustomers’ help, set up a strict quality control system.From raw material to finished parts, each process must inpect, have traceable files.

◆ Set up a strict quality control system.From raw material to finished parts, each process must inpect, have traceable files.

◆ We have qualified environmental impact assessment. So our production will not be affected by environmental inspection.

◆ We both have forging and machining ability.

◆ Two gas heating furnaces, monitored and controlled by computer programs to ensure precise heating within set time and temperature range as required.

◆ Including a 2500 Tons friction press, a 5 Tons hydraulic harmmer.

◆ A 3 axis CNC machining center, a milling planer, three CNC machining center, four milling center, three turning center, twenty CNC lathes. More than 80 workers.

◆ Value-added services such as, rolling, grindring, heat treatment, welding, hard chrome plating, polishing, painting, assembling are also avaliable.

◆ Dimensions range: φ50mm ~ φ1000mm; Length: 150mm ~ 4000mm; Weight: 10kg ~ 5 Ton.

◆ Material: Carbon steel, Cr&Mo Alloy steel, Stainless Steel and others.

Forging shaft/lift rod

Qingdao Bacsoont Industry and Trade Co., Ltd. workshop of high manganese steel centrifugal casting was founded in 2006 with the registered capital of  6 million RMB. The product conforms to the standard of GB/T5680-2010, GB/T8263-2010. GB/T13925-2010 and the company certified by IS9001, ISO14001, OHSAS18001. Our company belongs to the China foundry association wear resistant materials and castings branch which mastering core technology. And we are standing committee company of Chinese failure analysis institution of CME who pioneered the use of nano centrifugal casting technology which improved the mechanical properties of high manganese steel greatly. Huge ascension of grain size up grade 3 to grade 6 is 30 ~ 40% than ordinary products improved resistance level abrasion.

High manganese steel casting bushing

At home and abroad, we had cooperated port machinery factory, mining machinery, bulk cargo wharf with wear-resistant steel products supporting services.Major customers located in shandong, Shanghai, jiangsu, zhejiang and other coastal areas. We has an independent import and export right, products are exported to Europe and the United States, Japan, South Korea and other countries. Our company is located in the west coast of Qingdao where have convenient traffic.

High manganese steel casting bushing

We has a senior technical staff 10 people, national wear-resistant material expert 2 people, technical staff of 50 people, comprehensive workshop covers an area of 4000 square meters, the factory with casting heat treatment workshop, machining workshop, the physical and chemical laboratory, comprehensive office building. Companies adhering to the “quality first, integrity-based, customer first” business philosophy, to create brand reputation, long collaboration with old and new users and common development.

High manganese steel casting bushing