Spiral rotor for rotary-screw air compressor

Part name: Spiral rotor for rotary-screw air compressor

Metal: Ductile iron or other metals as per your requirements

Metal casting: Sand casting process

Our sand casting factory occupies a total area of 30,000 square meters, which have casting foundry workshop, grinding, sandblasting and precision machining shop, laboratory and warehouse. Baoding Guokun has equipped with 4 sets medium-frequency electric furnaces, 15 sets automatic shell core machinery, automatic sand casting molding line, 7 sets CNC machinery, 20 sets CNC Lathe, and the complete quality inspection devices for mechanical testing and chemical analysis, including tensile strength, hardness tester, metallographic inspection, spectrometer, ultrasonic testing and special testing devices. If you need ductile iron sand casting components, please feel free to contact gina@guokuncasting.com or call us 86-18132789710(Wechat & WhatsApp)

Sand Casting Tags: ductile iron castings, air compressor parts

Description

A rotary-screw compressor is a type of gas compressor, such as an air compressor, that uses a rotary-type positive-displacement mechanism. Rotary-screw compressors use two very closely meshing spiral rotors to compress the gas. Baoding Guokun Machinery Co., Ltd and Baoding Guokun Export and Import Trading Co., Ltd are located in Baoding city, Hebei province, China. Our sand casting factory occupies a total area of 30,000 square meters, which have casting foundry workshop, grinding, sandblasting and precision machining shop, laboratory and warehouse. Baoding Guokun has equipped with 4 sets medium-frequency electric furnaces, 15 sets automatic shell core machinery, automatic sand casting molding line, 7 sets CNC machinery, 20 sets CNC Lathe, and the complete quality inspection devices for mechanical testing and chemical analysis, including tensile strength, hardness tester, metallographic inspection, spectrometer, ultrasonic testing and special testing devices. Before shipping, the quality reports for all inspection will be issued and mailed to our customers.

What is Sand Casting Process?

Sand casting process is an industrial metal casting process that involves creating a mold from sand and pouring molten metal into it, generally used to cast the shaped parts of nearly any design, including large parts and those with internal passages. Baoding Guokun can produce various sand cast parts in cast iron, ductile iron, gray iron, low-carbon steel, mild steel, alloy steel for pump, valve, agriculture, railway, road, forklift, tillage, mining, automotive, medical, food, and aircraft, etc.

The process of Baoding Guokun sand casting involves several steps after producing a professional tool or mold, including:

No.	Steps	Details
1	Pattern Creation	A two-piece metal pattern is created in the shape of the desired part, typically from iron, aluminum or wooden material.For a single casting or small batches of castings, we prefer to produce to use the wooden material to manufacture the mold to save money for customers.For other sand casting parts in large quantity, we prefer to use aluminum or iron to improve the mold’s service life.
2	Mold creation	The two shell halves are joined together and securely clamped to form the complete shell mold. If any cores are required, they are inserted prior to closing the mold. The shell mold is then placed into a flask and supported by a backing material.
3	Pouring	The mold is securely clamped together while the molten metal is poured from a ladle into the gating system and fills the mold cavity.
4	Cooling	After the mold has been filled, the molten metal is allowed to cool and solidify into the shape of the final castings.
5	Raw Castings	After the molten metal has cooled, the mold can be broken and the casting removed. Trimming and cleaning processes are required to remove any excess metal from the feed system and any sand from the mold
6	Machining	Machining as per drawings

Baoding Guokun sand casting pouring process

Advantages of sand casting process

Versatility: Sand casting process can be used to produce a wide range of shapes and sizes, from small & intricate parts to large & sample parts, weight up to 10,000 kgs.

Short lead time: Compared with die casting or Investment precision casting process, sand casting has short lead times because of short mold production time.

Widely material choice: Almost any metal can be sand mold casted, for example, cast steel, ferrous and non-ferrous cast iron, aluminum and bronze.

Low Cost: The sand casting of Baoding Guokun is cost-effective for small-quantity runs, and the molds are inexpensive to make, especially the wooden mold.

Disadvantages of sand casting techniques

The sand casting parts is often with rough surface finish, lower strength, high labor cost (if done manually). And Secondary machining often required.

Sand Casting Application

Pump casting, Valve casting, agricultural casting, aircraft casting, railway casting, road casting, motor casting, mining casting, power generation investment casting, Medical casting, marine industry casting, Cast iron sand casting, iron sand casting, ductile iron sand casting, iron sand casting process, sand casting iron China, green sand iron casting, cast iron sand casting company, cast iron sand casting factory, sand casting iron, casting of cast iron, cast iron sand mold, cast iron foundry sand molding, cast iron sand molding, iron sand molding, cast iron sanding disc, metal sand casting, metal sand casting China, 65-45-12 cast iron sand casting.

A High Quality China Foundry！

Guokun Casting, of Baoding Hebei is an ISO 9001-2008 registered iron and steel foundry & supplier of high quality carbon steel, cast iron and machined castings used in power, mining, railway, agricultural, tillage, truck, automobile, pump, valve, motor, pipe fittings and gear industry.

With a montly capacity of 10,000kgs and with more than 15 years of experience ensure the short delivery and the highest valued iron & steel casting parts.