China Manufacturer Customized Metal Sand Casting Service Gray Cast Iron Parts

Product Description

Our company produces ductile iron and gray cast iron series products, with an annual output of 80,000 tons,products are exported to the United States, Germany, Italy, Russia, Brazil, Vietnam, the Middle East and other regions.

Our company has a modern workshop, complete casting production equipment, advanced physical and chemical analysis, testing equipment, constantly importing the world's advanced technology and a large number of professional technical personnel, expanding advanced production and testing equipment, so that make our products can meet the different requirements of customers

1. Material: Gray Iron or Ductile Iron;
Gray iron HT200-350 (GG20-35, FC200-350);Ductile Iron QT400-QT600(GGG40-GGG60,FCD400-FCD600)
2. Surface treatment: Shot blast, painting; Heat treatment is optional;
3. Custom according to your drawing, specification or samples;

Material	Gray Iron Casting/Ductile Iron Casting/Steel castings
Process	Sand casting/lost foam casting/investment casting + CNC machining
Casting Tolerance	CT9-10 for Machine Molding Process,   CT8-9 for Shell Molding and Lost Foam Molding Casting Process   CT10-11 for Manual Molding Sand casting Process
Casting surface roughness	Ra 12.5-25 um
Casting weight range	0.5kg to 20 tons per piece
Casting Size	As Requirement/As drawing
Machining surface roughness	As Requirement
Material standard	GB, ASTM, AISI, DIN, BS, JIS, NF, AS, AAR
Surface treatment	KTL (E-coating), Zinc plating, Mirror Polishing, Sand Blasting, Acid pickling, black oxide, Painting, Hot galvanizing, Powder coating, and Nickel plating.
Service available	OEM & ODM
Quality control/Testing facility	Sectrometer, tensile test machine, hardness test machine,metallographic microscope. 100% inspection
Application	Train & railway, automobile& truck, construction machinery, forklift, agricultural machinery, shipbuilding, petroleum machinery,construction, valves and pumps, electric machine, hardware, power equipment, and so on.

Gray Iron Material Grades

Country	Standard	Equivalent Grades of Grey Iron (Gray Cast Iron)
ISO	ISO 185	100	150	200	250	300	350	-
China	GB 9439	HT100	HT150	HT200	HT250	HT300	HT350	-
USA	ASTM A48	-	NO.20	NO.30	NO.35	NO.40	NO.50	NO.55
			NO.25			NO.45		NO.60
Germany	DIN 1691	GG10	GG15	GG20	GG25	GG30	GG35	GG40
Austria
European	EN 1561	EN-GJL-100	EN-GJL-150	EN-GJL-200	EN-GJL-250	EN-GJL-300	EN-GJL-350
Japan	JIS G5501	FC100	FC150	FC200	FC250	FC300	FC350	-
Italy	UNI 5007	G10	G15	G20	G25	G30	G35	-
France	NF A32-101	-	FGL150	FGL200	FGL250	FGL300	FGL350	FGL400
UK	BS 1452	100	150	200	250	300	350	-
India	IS 210	-	FG150	FG200	FG260	FG300	FG350	FG400
Spain	UNF	-	FG15	FG20	FG25	FG30	FG35	-
Belgium	NBN 830-01	FGG10	FGG15	FGG20	FGG25	FGG30	FGG35	FGG40
Australia	AS 1830	-	T150	T220	T260	T300	T350	T400
Sweden	SS 14 01	O110	O115	O120	O125	O130	O135	O140
Norway	NS11 100	SJG100	SJG150	SJG200	SJG250	SJG300	SJG350	-

Ductile /Nodular Cast Iron Material Grades

Country	Standard	Equivalent Grades of Ductile iron (SG Iron, Nodular Graphite Iron)
ISO	ISO 1083	400-15	450-10	500-7	600-3	700-2	800-2	900-2
		400-18
China	GB 1348	QT400-18	QT450-10	QT500-7	QT600-3	QT700-2	QT800-2	QT900-2
USA	ASTM A536	60-40-18	60-42-10	70-50-05	80-55-06	100-70-03	120-90-02	-
			65-45-12		80-60-03
Germany	DIN 1693	GGG40	-	GGG50	GGG60	GGG70	GGG80	-
Austria
European	EN 1563	EN-GJS-400-15	EN-GJS-450-10	EN-GJS-500-7	EN-GJS-600-3	EN-GJS-700-2	EN-GJS-800-2	EN-GJS-900-2
		EN-GJS-400-18
Japan	JIS G5502	FCD400	FCD450	FCD500	FCD600	FCD700	FCD800	-
Italy	UNI 4544	GS370-17	GS400-12	GS500-7	GS600-2	GS700-2	GS800-2	-
France	NF A32-201	FGS370-17	FGS400-12	FGS500-7	FGS600-2	FGS700-2	FGS800-2	-
UK	BS 2789	400/17	420/12	500/7	600/7	700/2	800/2	900/2
India	IS 1865	SG370/17	SG400/12	SG500/7	SG600/3	SG700/2	SG800/2	-
Spain	UNF	FGE38-17	FGE42-12	FGE50-7	FGE60-2	FGE70-2	FGE80-2	-
Belgium	NBN 830-02	FNG38-17	FNG42-12	FNG50-7	FNG60-2	FNG70-2	FNG80-2	-
Australia	AS 1831	300-17	-	500-7	600-3	700-2	800-2	-
		400-12
Sweden	SS 14 07	0717-02	-	0727-02	0732-03	0737-01	0864-03	-
Norway	NS11 301	SJK-400.3	-	SJK-500	SJK-600	SJK-700	SJK-800
		SJK-400

Ning Bo AiNoLink Technology Co. Ltd. is a comprehensive industrial and trade enterprise integrating produ-

ction and trade. It has its own metal processing production base and a mature domestic sales network.

Our company is client-oriented, leveraging a robust supply chain network and professional market insights to provide customers with stable quality and timely delivery products and services. We also assist custom-

ers in reducing costs and increasing effciency, thereby establishing long-term strategic partnerships with them.

The products currently offered by the company include, but are not limited to, various metal products such as stainless steel, low-carbon alloy steel, ductile iron, gray iron, aluminum, copper, etc. They involve multiple processes such as casting, forging, stamping,welding, as well as surface treatment processes like heat treatment, electroplating, oxidation, blackening, and powder coating. The company is involved in industries such as automobiles, railways, agricultural machinery, construction machinery, electrical appliances, and medical equipment.

I. Preparations before Packaging
1. Casting pre-treatment
Surface cleaning: Remove the molding sand, burrs and oil stains from the surface of the casting, ensuring no residual impurities (using shot blasting or chemical cleaning).
Anti-rust treatment: Customized protection plan based on transportation environment:
Maritime transportation / High humidity environment: Spray epoxy zinc-rich primer + polyurethane topcoat (coatingthickness ≥120μm).
Short-term storage: Apply economical anti-rust oil for temporary protection.
Drying treatment: Ensure that the moisture content of the castings is ≤ 0.5%, to prevent internal rusting.

II. Core Packaging Process and Details
Individual protection
Edge protection: Hard edges are covered with EPE pearl cotton or custom foam corner protectors (thickness ≥20mm) to prevent puncturing the box.
Precision surface coating: Apply fluorocarbon spray to the surface and cover it with a PE protective film (such as for revolving door ceiling panels) to prevent scratches.
Moisture-proof measures: Place silica gel desiccant inside the box (quantity: 1kg per cubic meter) or adopt a perforated design (the stainless steel castings need to be breathable to prevent condensation).

2. Internal reinforcement design
Buffer filling: Fill the gaps with foam beads, paper scraps or air cushions to ensure that the casting does not shift. Load-bearing support: For overweight components (such as 70-kilogram castings), a "calcium plastic hollow board + directional reinforcing ribs" structure is adopted, which increases the load-bearing capacity by 40%. Layered isolation: When stacking in multiple layers, use solid wood pillow blocks for separation to prevent component collisions (such as in the packaging of rotating door profiles).

3. External Packaging
Box structure:
Wooden box: Five-layer composite board (thickness 0.9 cm) + metal snap fasteners for locking, with steel frame reinforcement at the bottom.
Calcium plastic box: Modular assembly, empty box can be folded to save storage space.
Sealing treatment: The top of the box is covered with double-laver moisture-proof film, and the seams are sealed with waterproof adhesive tape.
ldentification Specifications:
Printing enterprise logo, casting name/number, center of gravity symbol , rain protection sign.
Attach warning labels (such as"Sharp Edges") and hoisting indication marks.

Q: Are you a factory or a trading company?

A: We are a company that integrates industry and trade. We own several factories and have specialized in casting parts and CNC processing parts for many years. We are involved in every aspect of the production process. Once we receive your quotation, you just need to wait, and our components will be delivered to you on time. Because we will handle everything and solve all your problems for you.

Q:Do you make customized products or finished parts?
A: Yes,all parts are not in stock, custom made according to customer's drawings or samples! If you have any parts to be made, please feel free to send your kind drawings/samples to us. But stock is considered when customers requires.
Q: Will my drawing be safe after you get it?
A: Yes, we will not release your design to third party unless with your permission. And we can sign the NDA before you send the drawing.
Q: What is the MOQ?
A: Usually we don't set MOQ, but the more, the cheaper. Besides, we are happy to make prototype part or sample for clients to ensure quality standard.
Q:Whether some samples can be provided?
A: Yes, just need some sample cost, we will return it back when proceed into mass production. If a molded is needed, we will charge the mold fee before starting. Then the mold belongs to customer.
Q:How to deal it when they are found to be in poor quality?
A: Please rest assured that all our products are QC inspected and accepted with inspection report before delivery and generally there will no non-conformance; in case of non-conformance, please contact us immediately, take some pictures, we will check on the problems and have them reworked or repaired at the first time , the resulting transportation costs borne by our company.