SAG MILL OUTER PULP LIFTER
Outer Pulp Lifter
Outer discharge channels · Check together with grates and inner lifters
Receive slurry from the grates and direct it toward the inner discharge channels. ANRANST provides position identification, material assessment, drawing review, quality control and finished-part delivery.
Part Function
Inlets and Channels Alignment with grate openings, radial length, depth, width and vanes
Direction and Position Rotation direction, position number, inner or outer side, quantity per set and assembly sequence
Adjacent Interfaces Grate backs, inner lifters, discharge chamber and fastening system
Mounting and Fastening Hole locations, counterbores, seating faces, fasteners, seals and rear support
Collect Slurry from the Grates and Direct It toward the Inner Channels
Outer pulp lifters lie between the grate backs and inner lifters. Inlet area, channel volume, vane direction, position and worn profile affect slurry transport, flowback and discharge capacity.
Before replacement, check mill rotation, grate position numbers, inner and outer radii, channel depth, interface steps, hole locations and the quantity per set.
Channels and Performance
Inspect Grate Inlets, Lifting Channels and Inner Interfaces
Record wear, erosion and plugging along the flow path to assess materials and channel geometry.
Grate Inlet
Check alignment with grate openings, inlet steps, particle impact, plugging and wear behind the grates.
Lifting Channels
Check vane-surface erosion, grooving, changes in channel volume and slurry flowback.
Inner Interface
Check steps at the inner lifter connection, continuity of the flow section, misalignment and localized perforation.
Fastening and Support
Check cracks around holes, looseness, rear-surface erosion, seals and support contact.
Materials and Manufacturing Processes
Select Materials for Inlet Impact, Channel Erosion and Structural Support
The final grade, heat treatment, hardness and acceptance criteria depend on the agreed drawing, installation position and operating conditions.
Select materials for the continuous discharge path formed by the grates, outer lifters, inner lifters and discharge cone. Metso Mill Liners
Failure Diagnosis
Locate Inlet Plugging, Flowback, Perforation and Fracture
Record wear locations together with grate openings, flow direction, mill rotation and adjacent parts.
| Observed condition | Priority checks | Improvement Options |
|---|---|---|
| Reduced discharge or increased flowback | Grate openings, inlet alignment, channel volume, rotation direction, worn profile and inner lifters | Assess grates and inner and outer lifter channels as a complete system |
| Inlet plugging or localized buildup | Particle size, grate openings, inlet section, steps, misalignment and foreign objects | Restore inlet continuity and check grate openings against channel capacity |
| Cracked vanes or broken sections | Impact, section size, fillets, support, preload, hardness and manufacturing defects | Improve toughness and support continuity, and strengthen non-destructive inspection |
| Wear around holes or looseness | Grip length, seating faces, washers, seals, rear contact and slurry ingress | Restore the complete fastening and sealing system and record installation data by position |
Drawing References and Inquiry Details
Identify Outer Lifters by Grate Position, Rotation and Channel Design
Match OEM drawing numbers, third-party drawing numbers and spare part numbers to the equipment, installation position and drawing revision.
Equipment identification
OEM, series, complete model, serial number, discharge-end version, rotation direction and modification history.
Position and Identification
Position number, associated grate, quantity, OEM drawing number, third-party reference, spare part number and revision.
Channel Dimensions
Inner and outer radii, radial length, width, depth, vanes, inlet and outlet areas.
Mounting Interfaces
Hole locations, counterbores, seating faces, grate backs, inner lifters and fastening system.
Material and Service Life
Current material, hardness, heat treatment, composite construction, installation date, service life and remaining thickness.
Operation and Failure
Slurry, particle size, flow rate, throughput, plugging, flowback, erosion, cracks and photographs.
Related Equipment and Parts
Grates, Outer Lifters, Inner Lifters and Discharge Cone
Each section of the channel affects the others. Complete the assessment against the OEM model and discharge general arrangement.
Discharge Grate Check openings and flow capacity at the discharge system inlet. Inner Pulp Lifter Check the downstream inner channels and rotation direction. Discharge Cone Check the central discharge outlet and interfaces. SAG Lining and Discharge System Return to the complete system and inquiry requirements. Metso SAG Mill Equipment Identify the installed machine by brand, series, model and drawing references.
Discuss Your SAG Outer Pulp Lifters and Request a Quote
Provide the model, position number, drawing number, grate and channel drawings, rotation direction, adjacent parts, material, discharge conditions and wear details.
Manufacturing Services in China
From Technical Assessment to Finished-Part Delivery
Technical advice, supplier introductions, quality control and finished-part delivery.
Technical Advice
Review the channels, discharge, materials, operating conditions and failures.
Supplier Introductions
Match manufacturing resources for wear castings, composite liners, machining and fasteners.
Quality Control
Monitor material, heat treatment, channels, dimensions, non-destructive testing, weight and trial assembly.
Finished-Part Delivery
Supply complete sets with position and rotation details, fasteners, inspection records and installation documents.