Two-compartment, single-compartment, air-swept and shell-supported designs, with liners, diaphragms, slide rings, slide shoes, geared drives and on-site maintenance support.
Polysius ball mills are configured by project for material, feed, grinding circuit, support and drive. Current website and manufacturer brochures do not publish a uniform model-size table. This page lists traceable designs and performance without inventing models or diameters.
The current website confirms continued product supply; structural and drive data come from the 2018 manufacturer brochure. Where no uniform model code is published, only configurations and traceable parameters are listed.
| Published type / configuration | Structure and application | Key dimensions / parameters | System interfaces | Product status |
|---|---|---|---|---|
| Two-compartment closed-circuit ball mill | Coarse grinding in the first compartment, fine grinding in the second; the intermediate diaphragm regulates material flow | Published maximum first-compartment ball diameter 100 mm | Can form a closed circuit with a sepol® high-efficiency separator | Current website and 2018 manufacturer brochure |
| Single-compartment ball mill | For finer feed; may serve as the second grinding stage after pregrinding | Mechanical discharge through the discharge diaphragm | Can form a combined grinding system with a polycom® high-pressure grinding roll | 2018 manufacturer brochure |
| Air-swept mill | Single-compartment design for moist materials requiring drying with low-temperature gas | Pneumatic discharge directly to an air-swept separator | For coal or petroleum coke when fitted with the appropriate explosion-protection system | 2018 manufacturer brochure |
| Shell-supported ball mill | Shell supported by slide rings, slide-shoe bearings and hydraulic lifting | Each bearing group uses 2, 4 or 6 slide shoes according to mill size | Hydrostatic or hydrodynamic shoe lubrication according to load | 2018 manufacturer brochure |
| COMBIFLEX® drive | High-power mill drive with floating shafts and hardened gears | Published maximum 8,000 kW single drive; 16,000 kW dual drive | Girth gear and slide ring/shoes occupy one compact housing area | 2018 manufacturer brochure |
| Direct geared drive | Girth-gear/pinion drive for lower-power mills | No uniform power or diameter model table in the public brochure | Check girth gear, pinion, bearings, couplings and alignment as a set | 2018 manufacturer brochure |
The numbers on the diagram correspond one to one with the rows below.
| No. | Component | Location | Applies to |
|---|---|---|---|
| 1 | Shell liner | Rows of shell liners on inner cylindrical wall at right | Polysius tube mill |
| 2 | Diaphragm | Radial diaphragm at far end of grinding compartment | Polysius tube mill |
First-compartment impact, second-compartment fine grinding, diaphragm flow and feed/discharge erosion produce different failures. Confirm materials, profiles, slots and manufacture separately by position.
First-Compartment Lifting / Activator Liner
Works with large balls to provide lift and impact. Confirm profile, lifting angle, segments, thickness, holes, bolts and rotation against the shell liner layout.
View the common part page →Second-Compartment Classifying Liner
Classifies smaller grinding media along the mill for fine grinding. Confirm profile, classification direction, holes, segments, wear allowance and diaphragm interfaces against installation drawings.
Submit second-compartment liner drawings →
Intermediate Diaphragm & Wear Plate
Separates coarse and fine grinding compartments and regulates throughput. Confirm frame, slots, centre opening, wear plates, scoops, fastening and media filling against the diaphragm assembly drawing.
Submit diaphragm assembly drawings →
Discharge Diaphragm / Central Grate
Provides mechanical discharge and controls outlet passages. Confirm slots, free area, centre opening, thickness, sectors, flow and discharge-device interfaces against installation drawings.
View the common part page →
polalloy Slotted & Backwall Plate
Diaphragm slotted and backwall plates. Published manufacturer data specify 50 mm thickness and 58 HRC hardness, with slot shape adapted to service. Schedule replacement at 8–10 mm remaining thickness.
Submit slotted-plate dimensions and conditions →
Diaphragm Lifter Scoop & Head
Transfer material through the diaphragm to the next compartment and regulate flow. Confirm fixed/adjustable design, orientation, count, opening, connections and media clearance against diapol or installation drawings.
Submit scoop and diaphragm records →
Feed-End & End-Wall Liner
Protect the straight inlet end wall, inlet cone and adjacent shell. Confirm contours, holes, segments, overlaps, feed-chute clearance and left/right position against end-assembly drawings.
View the common part page →
Feed & Discharge Chute Liner
Protect chutes, drop points and turns in dusty material flow. Confirm curvature, segments, holes, overlaps, flow, maintenance space and mill-end clearance against chute drawings.
View the common part page →Check structural and drive spares individually by support type, power, interfaces, loads, material, heat treatment, flaw detection, accuracy, lubrication and alignment.
Mill Shell & Connection Flange
Carry liners, media and material while transmitting torque. Confirm diameter, length, thickness, welds, flanges, holes, roundness, runout and installation datums against general arrangements.
View the common part page →
Mill Head, End Wall & Inlet Cone
Connect shell, feed/discharge and support areas. Shell-supported designs use straight end walls and short inlet cones. Confirm contours, holes, flanges, welds and rotating/stationary seal interfaces against installation drawings.
View the common part page →Slide Ring, Sliding Shoe & Bearing Assembly
Shell-supported mills carry loads through slide rings and 2, 4 or 6 shoes per group. Confirm ring diameter, width, roundness, shoe count, oil clearance, load and hot alignment against bearing assembly drawings.
Open the shared bearing and bushing page →Bearing-Shoe Hydraulic Lifting Cylinder
Below the shoes, lift and position the shell and provide controlled support during individual-shoe replacement. Confirm bore, stroke, pressure, mounting distance, synchronization and safety locking against hydraulic drawings.
Submit hydraulic lifting-system records →
Girth Gear, Pinion & Direct Drive
Lower-power mills transmit torque through girth gear and pinion. Check module, tooth count, pressure angle, face width, helix, sectors, centre distance, bearings, couplings and contact pattern as a pair.
Open the shared gear and pinion page →COMBIFLEX® Gear Unit & Floating Shaft
For high-power mills, with published maximum 8,000 kW single-drive and 16,000 kW dual-drive ratings. Confirm input/output shafts, floating shafts, hardened gears, couplings and lubrication against nameplate and general arrangement.
Open the shared heavy-duty drive page →
Bearing Lubrication, Seals & Oil-System Parts
Provide hydrostatic/hydrodynamic films, filtration, cooling and sealing for shoes or trunnion bearings. Confirm pumps, valves, lines, nozzles, seals, pressure, flow, temperature and interlocks against lubrication diagrams.
Open the shared bearing and bushing page →The current website and brochure configure mills by project, material, compartments, support and drive without a uniform model-size table. Manufacture requires nameplate, serial number, general arrangement and part drawings.
Not by default. The first compartment emphasizes large-ball impact and lift, the second fine grinding and classification, while diaphragms control slots, flow and pressure drop. Confirm profiles, materials and fastening separately.
No. Check the mating gear, module, tooth count, pressure angle, helix, centre distance, sectors, bearings, couplings, lubrication, alignment, material and heat treatment together.
Provide nameplate, serial number, shell dimensions, compartments, supports, drive power, drawing, liner layout, diaphragms, used-part photos, material and conditions for identification, material assessment, manufacture, quality control and delivery.
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ANRANST provides customers worldwide with engineering assessment, production at certified foundries to the customer technical requirements, quality control and finished-part delivery for custom wear parts and industrial spares, with scope to support other custom industrial parts.
We review mating surfaces and interface dimensions and assess material, heat treatment and manufacturing feasibility.
Material grades and heat-treatment processes are specified order by order, stated in the technical agreement and tracked through production.
Drawing confirmation, material and process control, production tracking, inspection and acceptance coordination.
We coordinate manufacturing, quality confirmation, packaging and delivery of complete finished parts in a workable, closed-loop supply process.
Provide the equipment brand, complete model and serial number, part name, part number or drawing number, drawing revision, quantity, material requirements and duty. If identifiers are unavailable, send photographs and key dimensions.
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