Customized China Oem Automotive Stainless Steel Turbo Exhaust Manifold Sand Casting Parts

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How did Dandong Pengxin Become a Top Manufacturer of Exhaust Manifold

To become a world-leading exhaust manifold producer, Dandong Pengxin Machinery introduced in advanced manufacturing technologies, material innovation, quality control, and supply chain efficiency.  Below are the key strategies to achieve this goal

1. Advanced Casting Technologies

(1) High-Precision Casting ProcessesResin-Coated Sand Casting (Main production materials are gray cast iron and ductile iron）

Ensures thin-wall, complex geometries with excellent surface finish (Ra 6.3–12.5 μm). Ideal for high-performance exhaust manifolds with tight tolerances.(2) Investment Casting - Main production materials are 316 Stainless Steel and Heat-resistant steelUsed for premium turbine housings and racing exhaust components, especially for some freight trucks in the United States
(3) Gravity Casting for Aluminum Manifolds
Lightweight solutions for hybrid/electric vehicle exhaust systems, Gravity casting is the preferred method for mass-producing exhaust manifolds, involving melting metals like cast iron or aluminum and pouring the molten material into preheated steel molds solely by gravitational force. The process naturally fills mold cavities without external pressure, though some advanced variants may apply minimal supplemental pressure (0.2-0.5 bar) for complex geometries. This cost-effective method yields components with uniform 3-6mm wall thicknesses and smooth surfaces, offering superior metallurgical integrity and higher production rates than sand casting, making it ideal for durable exhaust systems requiring consistent quality in high volumes
2. Quality & Certification StandardsISO 9001/TS 16949 (IATF 16949) → Automotive quality compliance Leak & Pressure Testing → Ensures 100% gas-tight manifolds Thermal Cycling Tests → Simulates 10+ years of thermal fatigue 3D Scanning & CMM Inspection → Validates dimensional accuracy - ±0.1mm

R&D
Our Company Owns A Provincial Level Technology Center, Plus A 15 Person R&D Team, With average 20+ Years Of R&D Experience. We can help customers design for free according to their requirements, or produce according to the drawings or samples

Production Capacity

At Pengxin-Casting, process control begins as early as in the planning and development phase of the products. We support our customers to perform all required tests and inspections in a laboratory. It goes without saying that our plants are certified according to ISO 9001 and IATF16949 in line with a validated quality management. As we strive to accomplish our zero-error policy, you can rely on the following process control measures: Drawing Control → Pattern Control → Raw Material Control → Molding Sand Control → Pouring Process Control → Raw Casting & Machining Control →Other Requirement Control→ Packing & Delivery Control

 

Dandong Pengxin Foundry - Your Trusted Casting Solutions Partner Backed by 67+ years of metallurgical expertise, we deliver precision castings including exhaust manifolds and turbo housings through advanced resin-coated sand and gravity casting technologies. Our 50,000-ton capacity facility features automated molding machines, robotic shell production, and spectral analysis for quality assurance, serving global automotive and industrial clients with IATF 16949-certified manufacturing. Specializing in thin-wall (3-6mm) castings with Ra12-25μm finishes, our engineering team develops optimized solutions from prototype to mass production, supported by in-house mold design and rapid sample development within 15 days