Mining Machinery Forgings & 20CrMnTi Long Shafts
Product Overview & Key Features
Mining Machinery Forgings Definition
In mining, excavation, and heavy material handling, equipment components are subjected to relentless impact forces and high cyclic loads. The 20CrMnTi long shaft serves as a high-strength rotating or structural axle designed to transmit power and support heavy mechanical linkages in harsh mining environments.
Utilizing hot forging processes, FWD Forgings refines the internal grain structure of carbon and alloy steels (such as 20CrMnTi, 42CrMo, and C45), eliminating internal voids and boosting structural fatigue resistance. Whether configured as long straight shafts, rounds, bars, squares, rings, or cylinders, these forgings deliver the mechanical reliability required for heavy-duty earthmoving and mining machinery.
Key Advantages
| Feature | Description |
| Optimized Wear & Core Toughness | Premium 20CrMnTi alloy steel provides excellent surface hardenability and high core impact toughness after heat treatment. |
| High Structural Integrity | Hot forging refines internal steel grain flow, eliminating core porosity and increasing resistance to cyclic shock loading. |
| Precise Forging Tolerances | Hot forging dimensions are tightly controlled within 0 to +5mm, minimizing excess material and machining costs. |
| Flexible Delivery Conditions | Supplied as Black Forged Skin, Rough Machined Surface, or Bright Finish after fine precision machining. |
| Strict Quality Testing | 100% Non-Destructive Testing via Ultrasonic Testing (UT) and Magnetic Particle Testing (MT) ensures flaw-free components. |
| Mass Production Capability | Backed by a monthly production capacity of 3,000 tons to support large-scale mining and construction OEM projects. |
Manufacturing Process & Quality Assurance
To ensure every forged shaft withstands severe working conditions on mining and construction job sites, FWD Forgings follows a controlled manufacturing workflow for all our forged shafts:
Technical Specifications
| Parameter Category | Specification / Capability |
| Product Name / Model | 20CrMnTi Long Shaft / Mining Machinery Forgings |
| Primary Material Grades | Alloy Steel: 20CrMnTi, 42CrMo
Carbon Steel: C45 (45# Steel) |
| Molding Technique | Hot Forging (Open Die / Closed Die) |
| Forging Tolerances | 0 to +5 mm |
| Available Geometries | Round, Bar, Square, Long Shaft, Ring, Cylinder |
| Delivery Surface Finishes | Black Forged Skin, Rough Machined Surface, Bright Finish after Fine Machining |
| Heat Treatment Conditions | Normalizing, Annealing, Tempering, Quenching & Tempering (Q+T) |
| Flaw Detection Methods | Ultrasonic Testing (UT), Magnetic Particle Testing (MT) |
| Compliance Standards | Chinese National GB, ASTM, AISI, DIN, JIS, BS |
| Quality Certifications | GB/T19001-2016 / ISO9001:2015 Quality Management System |
| Production Capacity | 3,000 Tons / Month |
| HS Code & Logistics | HS Code: 7214100000 | Package: Export Wooden Cartons / Crates |
Industrial Applications
Our 20CrMnTi long shafts and custom alloy steel forgings are engineered for heavy-load equipment in mining, mineral processing, and heavy construction infrastructure:
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Mining Grab Buckets: Main pivot shafts, hinge pins, and heavy-duty load-bearing shafts for mechanical grab buckets and clamshell dredgers.
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Crawler Track Assemblies: Drive sprocket shafts, track roller shafts, and idler pins for excavators, bulldozers, and mining crawlers.
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Crushing & Screening Equipment: Eccentric shafts, drive shafts, and rotor shafts for jaw crushers, cone crushers, and vibratory screens.
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Heavy Material Handling: High-torque drive shafts for mining conveyors, bucket elevators, and bulk material loading systems.
Why Choose FWD Forgings
Full Customization & Material Versatility
Whether you require standard 20CrMnTi alloy steel shafts or custom geometries in 42CrMo or C45, FWD Forgings manufactures to your custom CAD drawings. We offer specialized shapes—including bars, rings, squares, and cylinders—to streamline your supply chain for heavy duty forged components.
High-Volume OEM Manufacturing
With a robust monthly output of 3,000 tons, our manufacturing facilities easily accommodate large batch orders for global machinery OEMs and mining equipment contractors, ensuring consistent lead times and competitive pricing.
Verified ISO Quality Standards
Operating under GB/T19001-2016 and ISO9001:2015 quality management systems, every production batch includes full material traceability, mechanical test records, heat treatment charts, and 100% UT/MT flaw detection reports.
Frequently Asked Questions
Q1: Why is 20CrMnTi steel commonly selected for long shaft forgings?
20CrMnTi is a low-carbon alloy steel known for its exceptional carburizing properties, high core toughness, and excellent fatigue resistance. After forging and appropriate heat treatment, it provides a hard, wear-resistant surface while maintaining a tough core capable of absorbing shock loads in heavy machinery.
Q2: What machinery applications use these 20CrMnTi long shaft forgings?
These long shafts are heavily utilized as critical drive shafts, load-bearing pins, and structural axles in mining grab buckets, excavator track assemblies, heavy crushers, and bulk conveyor systems.
Q3: What forging tolerances and surface finishes do you supply?
Our hot forging tolerances are held within 0 to +5mm. Depending on your machining requirements, we supply products in Black Forged Skin, Rough Machined Surface, or Bright Fine Machined Finish.
Q4: How does FWD Forgings guarantee zero internal flaws in heavy shaft forgings?
As a reliable industrial forging manufacturer, every shaft undergoes 100% Non-Destructive Testing (NDT), including Ultrasonic Testing (UT) to detect internal voids/inclusions and Magnetic Particle Testing (MT) to inspect for surface defects.
Q5: What international manufacturing standards do you comply with?
We manufacture strictly according to Chinese National Standard (GB) as well as international norms including ASTM, AISI, DIN, JIS, and BS, supported by full EN 10204 3.1 material test certificates.