Lost Foam Casting High Manganese Steel Hammer for Mining Machinery Parts

Overview

In heavy-duty industrial and mining operations, the reliability of equipment hinges on components built to withstand extreme impact and abrasion. Our Lost Foam Casting High Manganese Steel Hammer is a prime example of engineering excellence, combining the precision of lost foam casting with the superior wear resistance of high manganese steel (Hadfield steel, ASTM A128). This innovative manufacturing process allows for the creation of complex geometries with minimal machining, while the material’s unique properties make it ideal for applications involving repeated high-stress collisions and abrasive environments.

The lost foam casting process begins with a polystyrene pattern that is coated in a refractory ceramic shell. Molten high manganese steel (containing 11-14% manganese) is then poured into the mold, vaporizing the pattern and filling the cavity to form a near-net-shape hammer head. This method eliminates traditional casting defects like porosity and shrinkage, resulting in a dense, uniform microstructure with exceptional impact toughness. After casting, the hammers undergo heat treatment to optimize their mechanical properties, achieving a surface hardness of HRC 50-55 while maintaining a ductile core, ensuring both wear resistance and resistance to sudden fracturing.

Features

Unmatched Abrasion Resistance

High manganese steel’s unique property is its ability to work-harden upon impact, developing a hard, wear-resistant surface while retaining a tough inner core. This makes our hammers ideal for crushing, breaking, and milling operations where contact with hard, jagged materials like rock, ore, or concrete is constant. The work-hardening effect increases surface hardness by up to 50% during use, significantly extending service life compared to conventional carbon steel or alloy steel hammers.

Complex Geometry Precision

Lost foam casting allows for intricate designs, including hollow interiors, integrated mounting brackets, and optimized weight distribution for balanced operation. Unlike traditional forging or sand casting, which are limited by draft angles and simple shapes, our process can produce hammers with ergonomic handles, reinforced impact faces, and internal stress-relief features—all in a single casting. This design flexibility ensures maximum energy transfer during impact and reduces operator fatigue.

High Impact Toughness

Despite their hard surfaces, these hammers maintain excellent impact resistance, thanks to the ductile core structure. This prevents catastrophic failure from sudden shocks, a critical advantage in applications like mining crushers, demolition machinery, and recycling plants. The material’s low notch sensitivity further enhances its reliability in unpredictable loading conditions.

Corrosion and Oxidation Resistance

While primarily designed for abrasion resistance, high manganese steel also offers moderate resistance to atmospheric corrosion and scaling at elevated temperatures (up to 400°C). This makes our hammers suitable for outdoor use or in humid, corrosive environments without requiring additional protective coatings, reducing maintenance costs.

Customizable Performance

We offer tailored solutions for different impact intensities and material types. Whether designing a lightweight hammer for manual demolition or a heavy-duty model for automated crushing lines, we adjust the manganese content, heat treatment process, and geometry to meet specific project requirements. Surface finishes can also be customized, from rough as-cast textures for maximum grip to machined surfaces for precise mechanical interfaces.

Applications

Mining and Quarrying

In underground mines and open-pit quarries, our hammers are used in jaw crushers, impact crushers, and hammer mills to break down ore, limestone, and granite. The work-hardening effect ensures consistent performance even as the crushing chamber fills with abrasive materials, reducing the frequency of equipment shutdowns for part replacement.

Construction and Demolition

For concrete demolition, road breaking, and recycling of construction waste, our hammers excel at shattering reinforced concrete and asphalt. The ergonomic designs (when used in handheld tools) or heavy-duty mounting interfaces (for excavator attachments) provide optimal power transfer, increasing productivity on demolition sites.

Metallurgy and Foundries

In steel mills and foundries, where high-temperature slag and molten metal byproducts need to be broken down, our hammers resist both thermal stress and abrasion. The material’s oxidation resistance at elevated temperatures ensures longevity in these harsh environments, critical for maintaining continuous casting operations.

Recycling and Waste Processing

In waste-to-energy plants and recycling facilities, our hammers are used to crush bulky waste, scrap metal, and electronic waste. The precision casting process allows for specialized designs that fit into automated shredders and pulverizers, ensuring efficient size reduction while minimizing downtime from wear and tear.

Heavy Machinery Maintenance

As replacement parts for excavators, loaders, and bulldozers, our high manganese steel hammers offer a cost-effective solution compared to original equipment manufacturer (OEM) parts. Their superior wear resistance means fewer replacements over the equipment’s lifecycle, translating to lower total cost of ownership for mining and construction fleets.

1.Material

Carbon steel: AISI 1020, AISI 1035, AISI 1045, GrD( Q235), Gr50 ( Q 345)

Alloy Steel: AISI 1053, AISI A387Cr. 12, 20CrMo, AISI 4137, AISI 4140, AISI 4340, AISI 431, 20 CrMnMo

Stainless steel: ASTM 304, ASTM 304L, ASTM 316, ASTM 316L

2. Process: Precision casting and machining

3. Quality Control:

Our company have a large number of the Quality Control Engineers, and we also have a lot of high precision testing equipment. Such as: Three coordinate measuring system, spectrograph, Optical Brinell hardness tester, tensile testing machine, air-gauge, Dial bore gauges, Inside Micrometer etc.

4. Our advantage:

1). We are one of the leading exporters with a history of more than 20 years, enjoying an excellent reputation and keep a good relationship with many foreign companies, especially in Japan, Europe, America and Southeast Asia.

2). We have a lot of the high precise Machining equipment and high precision testing equipment, our manufactory also have a large number of the engineers. We can provide the best products and the best service for you.

5.Our promise:

1). The delivery time and the package can be controled according to the customers' requirement completely.

2). We will produce the products seriously according to the drawings, and make sure all the products is suitable for the custoners.

3). We will communicate with the customers all the time about the products, we will send the pictures to the customers, so that they can know the Processing process

6.Our Inspection Equipment:

Direct-reading spectrograph,metallographic microscope,hardness tester,brinell hardness tester,thermometric indicator,universal testing machine,carbon and silicon analysis meter,magnetic powder flaw detector,digital ultrasonic flaw detector etc.

7.Our Service:

1).Your inquiry related to our products or prices will be replied in 12 hours.

2).Individual formula according to customers' special drawing requests.

3).Manufacturer with large capacity,ensures the fast production cycle after

confirming the order.

4).Protection of sales area and private information for all of our customers.

8.Machining Ability

Our machining shop located in Qingdao using the latest CNC equipment to provide our customer with high quality products.

Horizontal and Vertical Machining Center

CNC lathe and normal lathe

CNC drilling and milling Center

Other assistant equipment