Experienced Manufacturing Company for Mill Components
As an experienced manufacturing company specializing in heavy-duty mill components, ZM INDUSTRY CO., LTD. provides customized mill head solutions for global mining and cement industries. With in-house pattern making, casting, machining, heat treatment, and surface finishing capabilities, we ensure consistent quality, reliable delivery, and technical support throughout the project lifecycle.
Products Description
This mill head is designed for continuous operation in high-load SAG mill and ball mill applications. Manufactured from BS3100-A2 cast steel, it offers excellent toughness and fatigue resistance. According to mill size and site conditions, the mill head can be supplied as four-segment (4×90°), two-segment (2×180°), or integral design, balancing transportation efficiency, installation convenience, and operational rigidity. Precision machining ensures accurate mating surfaces, while controlled surface finish improves sealing performance and corrosion resistance.
01
Segmented Design
Segmented mill head configuration improves handling flexibility, reduces transport constraints, and simplifies on-site installation for large grinding mills.
02
Material Strength
Manufactured from BS3100-A2 cast steel, the mill head delivers high toughness, fatigue resistance, and long-term stability under heavy-duty grinding conditions.
03
Precision Machining
Final CNC machining ensures accurate dimensions, controlled runout, and consistent surface finish, supporting precise liner and bolt assembly.
04
Process Control
From pattern making to final painting, every process step is managed to guarantee consistent quality, traceability, and export-grade reliability.
Technical Specifications
four-segment (4×90°)
two-segment (2×180°)
integral design
| Product Type | Mill Head / End Cover |
| Application |
|
| Material | BS3100-A2 Cast Steel |
| Structural Configuration | 4×90° segmented / 2×180° segmented / integral design
|
| Dimensional Tolerance | General ±1.0 mm or per drawing |
| Surface Roughness | Controlled Ra for sealing and contact surfaces |
| Heat Treatment | Stress-relief heat treatment |
| Surface Finish | Sandblasting + industrial protective coating |
Customizable Parameters
| Overall Diameter |  |
| Structural Type (Segmented / Integral) | |
| Material Grade | |
| Heat Treatment Process | |
| Machining Accuracy & Runout Control | |
| Liner Interface Design | |
| Bolt Hole Pattern & Size | |
| Lifting Lug Configuration | |
| Surface Finish Requirement | |
| Rubber Lining Option | |
Manufacturing Process
Pattern construction based on customer drawings
Precision casting with controlled solidification
Rough machining for profile formation
Stress-relief heat treatment to eliminate internal stress
Final machining of functional and mating surfaces
Sandblasting for uniform surface finish
Packing preparation for shipment
Quality Control
Rough Machining NDT
Non-destructive testing after rough machining detects internal defects early, ensuring only structurally sound components proceed to final processing.
Magnetic Particle Testing
Magnetic particle inspection verifies surface integrity after machining and heat treatment, preventing crack-related operational risks.
Feeler Gauge Inspection
Mating surfaces are checked for flatness and contact uniformity to guarantee accurate assembly and load distribution.
Runout Measurement
Dimensional runout is measured to control rotational balance and reduce vibration during mill operation.
Hole Position Inspection
Hole locations and alignment are inspected to ensure reliable bolt and liner installation on site.
Hardness Verification
Hardness testing confirms material performance meets design requirements after heat treatment.
Surface Roughness Check
Critical surfaces are measured to ensure controlled roughness suitable for sealing and assembly.
Final Inspection Approval
Comprehensive final inspection confirms dimensional accuracy, surface condition, and coating quality before shipment.
Packing & Shipping
Secure & Ready-to-Lift Mill Head Packaging
Mill heads are packed in a bare configuration on reinforced timber blocks to maintain stability during transport. Pre-installed lifting lugs allow safe crane handling at loading, unloading, and installation. Machined surfaces receive anti-rust treatment, while shock-absorbing spacers reduce the risk of damage. This method ensures the component remains secure, simplifies on-site handling, and accelerates installation, reflecting ZM INDUSTRY CO., LTD.'s expertise in protecting heavy, high-value mill components.
Professional Handling & Thoughtful Logistics
Shipping plans are customized for weight, structure, and destination, ensuring secure transit. Components are fixed to prevent movement and protected against moisture and impact. ZM INDUSTRY CO., LTD. coordinates lifting, transport, and securing strategies, leveraging extensive heavy mill component logistics experience. Our approach minimizes handling risks, simplifies on-site operations, and ensures timely, safe delivery, reflecting our dedication to customer satisfaction and confidence in global heavy-duty mill equipment transportation.
Inquiry Invitation
Your Reliable Partner for Mill Head Manufacturing
Looking for a dependable supplier of mill heads for SAG mills or ball mills? Contact ZM INDUSTRY CO., LTD. today for technical consultation, customized manufacturing, and competitive solutions.
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