In the scrap metal recycling industry, the discharge door is one of the key wear parts in a heavy-duty scrap shredder. Especially for large equipment such as the Lidi X7 series scrap shredder, the discharge door must withstand continuous impact, vibration, and friction during daily operation.
A high-quality discharge door directly affects the stability of the shredding process, equipment safety, and maintenance frequency.
Our Mn18Cr2 discharge doors are specially designed for heavy scrap processing conditions. The material combines high manganese steel toughness with excellent wear resistance, making it suitable for handling mixed scrap steel, automobile shells, steel plates, light scrap, and industrial metal waste.
Under strong impact conditions, Mn18Cr2 material can quickly form a work-hardened surface during operation. This helps improve wear resistance while still maintaining good toughness inside the casting, reducing the risk of cracking or premature failure.
For scrap shredders running continuously under high load, this feature is especially important.
Compared with ordinary cast steel materials, Mn18Cr2 discharge doors provide:
1. Better impact resistance under heavy scrap feeding
2. Longer wear life in high-friction areas
3. Reduced downtime and replacement frequency
4. More stable operation of the shredder system
5. Lower overall maintenance cost
In actual working conditions, many scrap processing plants face common problems such as deformation, cracking, severe wear, or short service life of discharge doors. These issues usually become more serious when processing thick steel scrap or mixed hard materials.
To improve service life, our production process includes strict control of chemical composition, pouring temperature, heat treatment, and machining accuracy.
Each discharge door can also be supported with:
Metallography report
Spectrometer material analysis
Hardness testing
Dimensional inspection
This ensures stable quality before shipment.
TangShan Polarislink Advanced Materials Technology Co.,Ltd. focuses on manufacturing heavy-duty wear-resistant castings for mining machinery and scrap recycling equipment.
We provide customized wear parts for various shredder models, including discharge doors, hammers, liners, grates, caps, and other high-impact components.
With stable production capability and strict quality inspection, we help customers reduce maintenance pressure and improve equipment operating efficiency in demanding recycling environments.
