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Introducing, the Pengxin American Sand Casting Truck Flywheel for MACK 530GB3174 - the perfect solution for all your heavy-duty truck needs.
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Invest in the Pengxin American Sand Casting Truck Flywheel for MACK 530GB3174 and take your truck's performance to the next level. With its unbeatable quality, durability, and reliability, this flywheel is sure to impress even the most demanding truck owners. Upgrade your truck today and experience the difference that Pengxin quality can make

Why are we called OEM experts in Exhaust Manifolds | We develop over 100 different types of exhaust manifolds every year |
Dandong Pengxin Production Process for Exhaust Manifold | Drawing Preparation: The Foundation of Precision,3D Scanning & Drafting: Our professional engineers use advanced scanners to convert samples into 2D/3D drawings - 7–10 days |
Pattern & Sample Development: Where Time Invested Pays Off | Complexity: Exhaust manifolds often require 3–5 sets of metal patterns (vs. 1 set for simpler castings). Lead Time: 35–40 days for multi-cavity patterns; 25–30 days for simpler designs |
Initial Orders & Batch Production: Scaling Responsibly | Machine Allocation: One manifold order may occupy 2–3 molding machines. Our 16-machine facility prioritizes urgent orders and collaborates with partner foundries for auxiliary cores |
How Investors Can Mitigate Delays | Allocate 8–12 weeks for pattern/sample development. Compressing this risks quality failures. First batches take 20–30% longer due to process fine-tuning. Post-approval, lead times stabilize |

Dandong Pengxin Machinery Co., Ltd., founded in 1958, is a private enterprise specializing in casting, machining, and assembly. Spanning 66,000 m² with 40,000 m² of workshops, it has $40M in assets and 330 employees, including 46 technical staff. Annual capacity reaches 100,000 tons
Equipped with advanced technologies like high-pressure molding and Japanese FBO Ⅲ production lines, it produces up to 30,000 tons/year. Facilities include 12-pulse electronic furnaces, CNC machines, and a quality inspection center with precision instruments
Service
Pre-sales
Get your purchasing needs → Confirm order drawing→ Give customized solution → Offer a quotation → Make the pattern→ Provide samples→ Bulk production after samples approve the testOn Sale
Drawing Control → Pattern Control → Raw Material Control → Molding Sand Control → Pouring Process Control → Raw Casting & Machining Control →Other Requirement Control→ Packing & Delivery ControlAfter-Sales
Proactively get your feedback→ Engineering team gets involved→Casting engineer conducts metallographic and spectral tests based on the inventory test rods→Machining engineer's CMM inspection is based on the inventory samples→Provide solutions based on the test results→Welcome to contact us for your customized solutionHow 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

Process designs derive from engineering drawings

3D scanners

Metal Mold for Exhuast Manifold, Coated sand casting

Metal Mold for Exhaust Manifold, Sand Casting

Exhaust Manifold Core Box

Shell Molding Machine

Coated sand casting

Molding Machines
R&D
Production Capacity

Pattern Control

Raw Material Control

Machining Control
