The Dual-liquid Composite Hammer Head is a premium wear-resistant crusher spare part specially engineered for hard rock crushing applications. It is manufactured using advanced dual-metal composite casting technology, achieving a true metallurgical bond between two materials with different performance characteristics.
The working surface is made of high chromium alloy (HRC 62–65), providing exceptional wear resistance under severe abrasion conditions. The hammer shank is produced from high manganese steel (impact toughness ≥150 J/cm²), delivering outstanding resistance to heavy impact and shock loads.
This innovative structure completely eliminates the common industry contradiction of “wear-resistant but brittle” versus “impact-resistant but not wear-resistant.” It is an ideal solution for crushing ultra-hard materials such as basalt, granite, and river pebbles.
Key Features
Applications
Parameter
FAQ
Key Purchasing Drivers for International Customers
Solves hard rock crushing challenges
Conventional hammers used in basalt and granite applications typically fail or break within 3–5 days. Our composite hammer head delivers a stable service life of 20–30 days under the same conditions.
Significantly reduces maintenance cost
Reduced replacement frequency leads to lower labor costs and minimized unplanned downtime, decreasing operational losses by up to 70%.
Improves production efficiency
Extended continuous working time increases overall plant productivity by more than 30%.
Reliable and safe quality control
Each hammer is inspected by ultrasonic testing to eliminate internal cracks and hidden defects, ensuring structural integrity.
Customized engineering support
Material composition and structural design can be optimized according to ore hardness, feed size, and required output capacity.
OEM / ODM Customization Services
We provide full customization solutions to meet different crushing conditions:
Material combination customization: optimized pairing of high chromium alloy and high manganese steel based on application requirements
Structural design optimization: customized shape, weight distribution, and impact angle according to crusher model and working conditions
Performance upgrade options:
Tungsten carbide reinforcement for extremely abrasive materials
Reinforced hammer shank design for high-impact conditions to improve fracture resistance
One-stop service: from engineering drawings, sample development, mass production to international logistics delivery
Solutions to Common Industry Problems
Frequent hammer breakage in hard rock crushing
Dual-metal structure with high manganese steel shank increases impact resistance by up to 10×, effectively preventing fracture and sudden failure.
Rapid wear of working surface
High chromium alloy working face (Cr26 equivalent) achieves hardness of HRC 62–65, offering 5–8× wear resistance compared to conventional hammer heads.
Delamination at bimetal bonding interface
Advanced metallurgical bonding process with bonding strength ≥300MPa ensures zero detachment or cracking during operation.
Unstable quality in customized products
Over 15 years of experience in dual-metal casting technology ensures a mature and stable production system with ≥99% product qualification rate.
Insufficient overseas technical support
Comprehensive English technical documentation is provided, along with remote engineering guidance and optional on-site technical service when required.
Basalt quarries: production of high-strength aggregates for highways and high-speed rail concrete
Pebble sand production lines: crushing river pebbles into manufactured sand for concrete production
Granite crushing plants: construction materials, decorative stone processing, railway base materials
Iron ore mining: primary and secondary crushing in beneficiation plants
Copper ore processing: preparation for flotation and separation processes
Large hydropower projects: high-grade aggregates for dams, bridges, and port construction
| Working Face (High Chromium Alloy Section) | |
| Material grade: | High Chromium Alloy (Cr26 equivalent) |
| Surface hardness: | HRC 62–65 |
| Bonding strength: | ≥300 MPa (true metallurgical bond, no delamination) |
| Impact toughness: | ≥8 J/cm² |
| Service life: | 2× high chromium hammers / 5–8× high manganese hammers (basalt field test data) |
| Hammer Shank (High Manganese Steel Section) | |
| Material grade: | ZGMn13 high manganese steel |
| Initial hardness: | HB 200–250 |
| Work hardened hardness: | ≥HB 450 |
| Impact toughness: | ≥150 J/cm² |
| Overall Parameters | |
| Standard weight: | 20 kg |
| Custom range: | 10–100 kg available |
| Casting process: | dual-metal centrifugal composite casting |
| Heat treatment: | Working face: quenching + tempering Shank: water toughening treatment |
Q1: What is the main difference between dual-metal composite hammers and high chromium hammers?
A: High chromium hammers are made entirely from wear-resistant alloy, which provides excellent abrasion resistance but limited toughness. Dual-metal composite hammers combine a wear-resistant face with a tough impact-resistant shank, offering more than twice the service life in hard rock applications.
Q2: Can the hammer be reversed for use?
A: Yes. The symmetrical structural design allows both sides to be used. Once one side is worn, the hammer can be flipped to extend service life.
Q3: What is the service life in basalt crushing applications?
A: Under standard conditions (basalt hardness Mohs 7–8, feed size ≤300 mm), the service life is approximately 20–30 days depending on production capacity and material characteristics.
Q4: Is the higher price cost-effective?
A: Although the unit cost is higher, the lifespan is 2–3 times longer than standard products. Overall cost per ton of crushed material is significantly lower, while downtime and labor costs are also reduced.
Q5: What if delamination occurs at the bonding interface?
A: This is considered a serious quality issue. We provide full replacement free of charge and cover associated logistics and reasonable customer losses.
Zhejiang Linchuan Machinery Manufacturing Co., Ltd.
Factory Scenery