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As an ISO9001 certified foundry, we specialize in producing custom-made grey iron castings for demanding machinery and engine applications. Our quality-managed manufacturing process ensures every component meets precise specifications for strength, durability, and dimensional accuracy. We provide OEM manufacturers with reliable casting solutions that form the structural foundation for industrial equipment, automotive systems, and heavy machinery components.
Material Excellence and Performance Characteristics
Our foundry works with high-grade grey iron (Grades G2500 to G3500) specifically engineered for machinery and engine applications. This material delivers exceptional compressive strength and superior vibration damping properties - crucial characteristics for reducing noise and minimizing fatigue in dynamic load environments. The flake graphite microstructure within our grey iron provides excellent thermal conductivity and wear resistance, while maintaining consistent mechanical properties across operating temperatures from -20°C to 650°C. Our castings typically achieve tensile strengths between 250-350 MPa and Brinell hardness of 180-250, ensuring reliable performance under continuous operational stress.
Certified Manufacturing Process
Operating under ISO9001 quality management systems, our foundry employs advanced green sand molding techniques with automated molding lines capable of producing castings from 1kg to 100kg. Each production batch undergoes rigorous process controls including thermal analysis, chemical composition verification, and mechanical testing. Our precision machining division complements the casting process with CNC milling, turning, and drilling operations that maintain critical tolerances within ±0.005 inches. Every component undergoes dimensional inspection and surface quality assessment before shipment, ensuring consistent conformance to engineering specifications.
Diverse Industrial Applications
Our custom grey iron castings serve as essential components across multiple industries. In engine applications, we produce cylinder blocks, heads, and oil pans that maintain structural integrity under thermal cycling conditions. For industrial machinery, we manufacture pump housings, compressor bodies, gearbox cases, and equipment bases that provide stable mounting surfaces and lasting durability. The automotive sector utilizes our castings for brake components, suspension parts, and transmission cases where vibration damping and wear resistance are paramount.
Partner with our ISO9001 certified foundry for grey iron castings that combine material excellence with manufacturing precision. Our commitment to quality management ensures you receive components that enhance product reliability, reduce maintenance requirements, and deliver consistent performance in the most demanding operating environments.













| item | value |
| Place of Origin | China |
| - | Liaoning |
| Brand Name | pengxin |
| Model Number | L001 |
1.Investment-casting production process: The model number L001 utilizes a cutting-edge investment casting process for the Stainless Steel Valve Body, ensuring superior quality and precision.
2.Compatibility with various industries: This product is tailor-made for Machinery Parts applications, being suitable for a wide range of industrial sectors.
3.ISO/TS/RoHS certifications: Pengxin boasts adherence to strict quality and safety standards with its ISO9001/TS16949/RoHS certifications, assuring customers of reliable and eco-friendly products.
4.High production efficiency: Situated in the traditional industrial production hub of Dandong City, Liaoning Province, the factory encompasses a 5,000 square meter facility housing over 600 employees, with engineers accounting for 2/3 of the workforce.
5.Comprehensive services: pengxin offers a one-stop service package, including customization and OEM/ODM services, ensuring that customers' unique needs and requirements are met efficiently and effectively.
Established in 1998, Dandong City Pengxin Machinery Co., Ltd. excels as a versatile private enterprise, integrating casting, machining, and assembly. Based on a 66,000 square-meter site, its 40,000 square-meter plant houses a 220 million yuan fixed asset value and a workforce of 330 personnel, including 46 technical and managerial staff.
The company manufactures various ductile iron, gray iron castings, and compacted graphite irons capable of annual production capacity up to 100,000 tons. Key products include engine flywheels, clutch pressure plates, brake discs, chassis parts, axle components, boxes, body pumps, etc. These engineering marvels have forged strong partnerships with Dahua Kyrgyzstan, Changchun Yidong Clutch Co., Ltd., SG Automotive Group, Shenyang Brilliance, CRRC-Shenyang, Great Wall Motor, and Fawer shock absorbers.
Of note, Dandong City Pengxin Machinery Co., Ltd.'s AMF-07L & R, AMF-08L, and 1.5-ton electric furnace technologies, coupled with Oxford spectrometers and Germany Bruker spectrometry, enable comprehensive physical and chemical analysis. The robust machining center, including Taiwan and USA USA heck heck machining centers and CNC automatic lathe, Germany WENZER CMM, and over 170 CNC lathes, mills, drills, etc., ensures high precision.
In a commitment to quality, the company holds certifications such as ISO9001-2015, IATF 16949-2016, AD2000-Merkblatt W0 pressure vessel material quality system certification. US Environmental Protection Agency (EPA), OSHA 18001, ISO 14001, and Quality Management System certifications further attest to its rigorous quality control. The foundry industry has a high-level team of expert advisers for product development and technology research.
Dandong City Pengxin Machinery Co., Ltd. adheres to the modern management mode, with strong partnerships and technological prowess exhibited by its production machinery, inspection equipment, and high-quality products. The company's commitment to innovation and customer satisfaction is reflected in its ability to work with prominent international players such as John Deere from the US, Binotto from the UK, Mercedes-Benz, Weir from Italy, WILO from Germany, and KOBERT from Austria. Our professionals look forward to establishing long-lasting relationships with customers and partners alike. Visit our state-of-the-art facility to experience our offerings first-hand.
Your satisfaction is our pursuit, and our team is dedicated to providing the best products and services. We are poised to rise together on this exciting journey!
1. who are we?
We are based in Liaoning, China, start from 2020,sell to North America(42.00%),Western Europe(25.00%),Northern Europe(14.00%),Eastern Europe(11.00%),Southeast Asia(8.00%). There are total about 51-100 people in our office.
2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
3.what can you buy from us?
Sand Casting,Shell Casting,Investment Casting,Gravity Casting,Machining Parts
4. why should you buy from us not from other suppliers?
Dandong City Pengxin Machinery Co., Ltd (PX-Casting) is a professional manufacture focusing on forging, casting and machinery. We produce forging & casting parts according to your own specifications via our highly-control production process. Our customiz
5. what services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW,FAS,CIP,FCA,CPT,DEQ,DDP,DDU,Express Delivery,DAF,DES;
Accepted Payment Currency: USD,EUR,JPY,CAD,AUD,HKD,GBP,CNY,CHF;
Accepted Payment Type: T/T,L/C,D/P D/A,MoneyGram,Credit Card,PayPal,Western Union,Cash,Escrow;
Language Spoken: English,Chinese,Spanish,Japanese,Portuguese,German,Arabic,French,Russian,Korean,Hindi,Italian