Product Overview
Hopper Liner is a wear-resistant protective plate installed inside the feed hopper of crushing and screening equipment. It is designed to withstand continuous impact and abrasion generated by bulk materials such as rocks, ores, and aggregates during feeding and material transfer.
By protecting the hopper structure from direct wear, the liner significantly extends equipment service life, reduces unplanned downtime, and lowers long-term maintenance costs in mining and aggregate production operations.
Applications
Our Hopper Liners are widely used in:
Crushing & Feeding Equipment
• Jaw Crusher feed hoppers (PE / C series)
• Cone Crusher feed hoppers
• Impact Crusher feeding chutes
• Vibrating Feeder hoppers
Industrial Applications
• Mining and mineral processing plants
• Quarry and aggregate production lines
• Cement plants
• Steel and metallurgy industries
• Bulk material handling systems
We support OEM manufacturing based on crusher models, drawings, or reverse engineering of existing parts.
Materials & Technical Basis
We provide material solutions based on working conditions and wear mechanisms.
High Manganese Steel (Mn13 / Mn18 / Mn22)
High manganese steel is widely used in high-impact environments due to its excellent toughness and work-hardening behavior.
• Initial hardness: approx. 180–220 HB
• Work-hardened surface hardness: up to 450–550 HB (depending on impact energy)
Technical principle: According to the ASTM A128 standard for austenitic manganese steel, the material strengthens under impact loading through strain-induced work hardening, forming a hardened surface layer while maintaining a tough core.
High Chromium Cast Iron (Cr12–Cr28)
High chromium alloy is suitable for severe abrasive wear conditions.
• Hardness: HRC 58–65
• Microstructure: High volume of chromium carbides (mainly Cr7C3)
Technical principle: The wear resistance is provided by hard carbide phases distributed within the matrix, which effectively resist sliding and high-abrasion particle erosion.
Bimetal Composite Structure
A composite structure combining a wear-resistant alloy layer and a ductile steel backing plate.
• Wear-resistant working surface
• Impact-resistant structural base
• Improved crack resistance under heavy loading
Manufacturing Capability
We are a direct manufacturer of crusher wear parts with integrated production capability, including:
• Sand casting and lost foam casting workshops
• Heat treatment furnaces (water quenching & oil quenching systems)
• CNC machining equipment for precision finishing
• Shot blasting and surface treatment lines
• In-house quality inspection laboratory
Annual production capacity: scalable for bulk orders
Export markets: Asia, Africa, South America, Middle East, and Europe
Key Advantages
Extended Service Life
Depending on application conditions, our Hopper Liners typically improve service life by 30% to 150% compared with standard wear parts.
This improvement is achieved through optimized alloy selection, controlled heat treatment, and precision casting processes.
Reduced Maintenance Downtime
In crushing operations, maintenance downtime can account for a significant portion of total operating cost.
By improving wear resistance and extending replacement intervals, our liners help reduce:
• Unplanned shutdown frequency
• Labor cost for maintenance
• Production interruption losses
Precision OEM Fitment
We provide full customization services based on:
• Customer drawings (CAD/technical files)
• Existing worn parts (reverse engineering)
• Crusher model specifications
All components are manufactured with strict dimensional tolerance control to ensure proper installation without onsite modification.
Stable Bulk Supply for Wholesalers
As a factory supplier, we support long-term wholesale cooperation:
• Stable batch production quality
• Flexible MOQ for trial orders
• Large-scale repeat production capability
• Consistent delivery schedules for distributors
Technical Specifications
|
Item |
Specification |
|
Material |
Mn13 / Mn18 / Mn22 / Cr12–Cr28 |
|
Hardness |
180–550 HB / HRC 58–65 |
|
Thickness |
20 mm – 120 mm (customizable) |
|
Casting Process |
Sand casting / Lost foam casting |
|
Heat Treatment |
Water quenching / oil quenching |
|
Machining |
CNC precision machining available |
|
Surface Treatment |
Shot blasting / anti-rust treatment |
Quality Control System
We implement a strict multi-stage inspection process to ensure consistent product quality:
• Spectrometer chemical composition analysis
• Hardness testing (Brinell and Rockwell)
• Ultrasonic internal defect inspection (UT testing)
• Coordinate Measuring Machine (CMM) dimensional verification
• Batch traceability system for production records
All products are manufactured under an ISO 9001 quality management system.
pplication Case Study
Case: Limestone Quarry
• Equipment: Jaw Crusher PE900×1200
• Material: Mn18 Hopper Liner
• Feed material: Medium-hard limestone
Result
• Original liner lifespan: ~4–5 months
• Upgraded Mn18 liner lifespan: ~8–10 months
• Maintenance downtime reduced by approximately 40%
Packaging & Global Delivery
To ensure safe transportation, all products are:
• Treated with anti-corrosion coating
• Packed on reinforced wooden pallets or steel frames
• Secured for long-distance sea freight
We support global shipping for wholesale and distributor orders with stable lead times.
FAQ
Q: What is the service life of a Hopper Liner?
A: Service life depends on material hardness, impact energy, and feed conditions.
High manganese steel: 3–12 months
High chromium alloy: 6–18 months
Actual performance varies by application environment.
Q: How do I choose the correct material?
A: High impact conditions → Mn13 / Mn18 manganese steel
High abrasion conditions → High chromium cast iron
Mixed working conditions → Bimetal composite structure
We can recommend the most suitable solution based on your crusher and material data.
Q: Do you support OEM or custom production?
A: Yes. We support OEM manufacturing based on drawings, samples, or reverse engineering of worn parts.
Q: What is your MOQ for wholesale orders?
A: We support flexible ordering:
Trial orders available (1–5 pieces)
Bulk pricing for distributors and project orders
Long-term supply agreements available
Q: How do you ensure product quality consistency?
A: Each batch undergoes strict inspection including chemical analysis, hardness testing, dimensional inspection, and internal defect detection. All records are traceable.
Q: Do you supply to international markets?
A: Yes. We supply crusher wear parts to customers in mining and aggregate industries across Asia, Africa, South America, the Middle East, and Europe.
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