SAG Mill
Semi-Autogenous Grinding Mill
Identify feed-end, shell and discharge-end liners, grates and pulp lifters, girth gears, pinions, trunnions and main bearings.
Open Metso SAG Mills →
OEM Horizontal Mill Families
Identify the product line before selecting the mill and parts
Premier™ horizontal mills are engineered for individual projects. Select™ is a pre-engineered standard range covering SAG, ball and rod mills. ANRANST uses the installed machine's complete model, serial number, drawing references, drawings and actual interfaces to coordinate technical review, quality control and delivery of wear parts, drive components, custom spares and maintenance tools.
Premier™ Project-engineered horizontal mills
31 configurations Standard Select™ SAG configurations
41 configurations Standard Select™ ball mill configurations
8 configurations Standard Select™ rod mill configurations
Equipment page
Open the dedicated page for your mill type
SAG, ball and rod mills differ in grinding media, shell proportions, feed and discharge arrangements, and liner service conditions. Select the correct mill type before checking part position, material, drawing references and manufacturing requirements.
Ball Mill
Ball Mill
Identify shell and end liners, discharge systems, trunnion liners, gear drives, main bearings and associated maintenance tools.
Open Metso Ball Mills →Rod Mill
Rod Mill
Select™ rod mills have 8 standard configurations. This page provides the documented range and common spare-part categories; confirm the installed machine by model, drawings and end configuration.
View the Select Rod Mill Range →Models and Key Dimensions
Premier and Select Product Ranges
The table retains the standard types and key dimensions needed for spare-part identification. Premier™ has no single standard model table. Confirm each Select™ configuration on its dedicated equipment page or against the manufacturer's data sheet.
| Product line / mill type | Standard configurations | Diameter | EGL / power | Equipment page |
|---|---|---|---|---|
| Premier™ horizontal mills | Project-engineered | Project-specific | Project data sheet and general arrangement | Submit installed-equipment details |
| Select™ SAG Mills | 31 standard configurations | 3.80–9.00 m | EGL is specified for each of the 31 configurations; 400–7,800 kW | SAG models and spares |
| Select™ Ball Mills | 41 standard configurations | 0.60–6.00 m | 0.90–12.00 m EGL; 2.2–7,800 kW | Ball mill models and spares |
| Select™ Rod Mills | 8 standard configurations | 2.40–4.60 m | 3.60–6.10 m EGL; 200–1,600 kW | Common rod mill structure page |
Model and dimensional sources: Metso Select™ Horizontal Grinding Mills, Select™ SAG Mills data sheet, Select™ Ball Mills data sheet and Select™ Rod Mills data sheet. Manufacture still requires the nameplate, serial number, drawing reference, drawings and actual interfaces.
Wear Parts
Liners and Discharge Wear Systems
Impact, abrasion, slurry erosion and fastener loads vary by location within a horizontal mill. Use the cards to locate each part, then confirm its material according to position, processed material and failure history.
01 · WEAR
Shell Liners and Lifters
Shell Liners & Lifters
Mounted on the inner shell wall to lift ore and grinding media, protect the shell and control the charge trajectory.
02 · WEAR
Feed and Discharge End Liners
Feed & Discharge End Liners
Mounted on the mill heads. Check the end, hole pattern, curved profile, fastening method, media impact and direction of slurry flow.
03 · WEAR
Feed Throat and Trunnion Liners
Feed Throat & Trunnion Liners
Located in feed or discharge passages. Check the end, taper, flange, hole pattern, liner length, slurry flow direction and sealing interfaces.
04 · WEAR
Discharge Grates and Pulp Lifters
Discharge Grates & Pulp Lifters
For grate-discharge systems. Check openings, flow passages, segmentation, rotation direction, fastening holes and interfaces with the discharge cone or trommel.
05 · WEAR
Discharge Trommel Wear Parts
Discharge Trommel Wear Parts
Covers screen panels, liners and connections. Check aperture size, segmentation, rotation direction, drum diameter, connecting flanges, discharge capacity and replacement access.
06 · WEAR
Liner Fasteners and Seals
Liner Bolting & Sealing
Check bolt size, effective length, head form, washers, rubber seals, target preload and installation and removal space as one system.
A known OEM or third-party drawing reference can be assigned to the relevant part location. No interchangeability is inferred publicly until equipment, model, end and installation position are confirmed. Submit drawing references, drawings or installed-part photographs for review.
Spare Parts
Drive, Load-Bearing and General Spares
Beyond liners, horizontal mill spares include gears, shafts, bushings, bearing housings, drives, lubrication components and seals. Manufacture and package supply require complete checks of geometry, materials, heat treatment, nondestructive testing and assembly interfaces.
01 · SPARE
Girth Gear and Pinion Set
Girth Gear & Pinion Set
Check module, tooth count, pressure and helix angles, face width, split construction, center distance, shaft bore, material and heat treatment.
02 · SPARE
Trunnions and Bushings
Trunnion & Bushings
Distinguish feed and discharge ends. Check journals, tapers, flange holes, bearing arrangement, liner interfaces, machining datums and nondestructive testing requirements.
03 · SPARE
Main Bearings and Housings
Main Bearings & Housings
Check fixed and floating ends, journal diameter, hydrostatic or hydrodynamic design, bearing material, oil passages, cooling, seals and foundation interfaces.
04 · SPARE
Mill Heads
Mill Heads
Large load-bearing components. Check the end, diameter, flange holes, trunnion interface, material, cast or welded construction, nondestructive testing and machining datums.
05 · SPARE
Mill Shell and Flanges
Mill Shell & Flanges
Check diameter, EGL, plate thickness, sections, flange design, liner holes, welding, heat treatment, site transport and installation conditions.
06 · SPARE
Drive, Couplings and Inching Drive
Drive, Couplings & Inching Drive
Identify the complete system by motor power, speed, reduction ratio, high- and low-speed couplings, inching drive, braking, lubrication and mounting interfaces.
Special Tooling
Horizontal Mill Relining and Maintenance Tools
Only tooling traceable to horizontal mills in official Metso information is shown. These tools require a separate review of mill access openings, liner weight, center height, working space, load points and safety interlocks.
Metso MRM 4000
Mill Reline Machine
Mill Reline Machine
Handles, lifts and positions liners inside larger horizontal mills. For a quotation, confirm the mill opening, maximum liner weight, working radius, center height, access route and electrical and hydraulic interfaces.
View Metso Tooling Information →Metso Tube MRM
Tube Mill Reline Machine
Tube Mill Reline Machine
Provides fixed three-axis hydraulic lifting support and liner-handling space for smaller SAG and ball mills that cannot accommodate conventional relining machines.
View Metso Tooling Information →Official Select™ Arrangement
Jacking Cradles and Jacking System
Jacking Cradles & Jacking System
Support the rotating mill assembly at designated positions and provide controlled lifting during maintenance. Check equipment weight, jacking points, uneven loading, stroke, foundation elevation and site access.
View the Select Tooling Scope →Technical Review
Three Key Checks for a Horizontal Mill Spare-Part Enquiry
Descriptions such as “ball mill liner” or “mill gear” do not establish interchangeability. Complete information improves technical review, supplier matching, quality control and delivery planning.
How do Premier and Select differ?
Premier is engineered for individual projects; Select uses pre-engineered standard configurations. Check the nameplate, model, serial number and project drawings before selecting the spare-part scope.
What information is needed for liners?
Provide mill type, diameter and EGL, installation position, drawing or part number, installed-part photographs, fastening method, material, processed feed and failure history.
Why are drawings needed for drive parts?
Tooth geometry, center distance, shaft bores, end arrangement, hole patterns, journals, bearing and lubrication interfaces can vary by project. They must be checked against drawings or measurement records.