AG / SAG mill · 2023 · 2 models
Select a model to jump to its component table; former and renamed designations are listed under “Historical names / renamings”.
| Model | Historical names / renamings | Period | Components |
|---|---|---|---|
| Hardinge Cascade autogenous mill series | Hardinge Cascade 6.6m×2.1m | 2023 | 1 |
| Hardinge AG / SAG mills (large-scale and test instances) | Hardinge Koppers 32ft×14ft AG→SAG (Island Copper); Hardinge 6ft×2ft SAG Mill (ALS Balcatta) | 1971—1974 | 23 |
The numbers on the diagram correspond one to one with the rows below.
| No. | Component | Location | Applies to |
|---|---|---|---|
| 1 | Mill shell | Visible mill shell in 32 ft x 14 ft Hardinge-Koppers mill | 1974 Island Copper 32ft×14ft |
| 2 | Trunnion bearing pedestal | Visible trunnion bearing pedestal in 32 ft x 14 ft Hardinge-Koppers mill | 1974 Island Copper 32ft×14ft |
Models with the same components are grouped together; select a group to open its component table.
| Component | Location |
|---|---|
| Double wound rotor motor | Each mill in this factory has dual 3000hp and 13200V drives |
| Transmission reducer | Between motor and pinion |
| Transmission pinion | Reducer to large ring gear |
| Large ring gear in the middle of the cylinder | Surrounding the middle of the cylinder |
| 72 rows of lining plates and lifting bars | Barrel lining; alternating plates and lifting strips |
| Wedge between lining plates | Between rows in the barrel; materials and dimensions not specified |
| Internal and external discharge grate plate | Discharging end; inner 5/16in and outer 3/4in slotting |
| Discharge drum screen and two return ports | Mill discharge, screen +3/8in returns from two ports |
| 3in and 4in forged steel additional grinding balls | The factory changed it to semi-autogenous grinding, diameter 3in/4in, ratio 70%/30% |
| Hollow shaft lubrication system (back pressure observation) | The factory's hollow shaft is lubricated; back pressure is used as a load observation quantity, and the sensing element type is not documented |
| Analog power recorder/controller (mine plant installation) | Mill load monitoring; cannot automatically control at constant set points for each ore type |
| Sound monitor (mine factory installation) | Monitoring of each mill; combined with power/back pressure for manual control |
| ALS test SAG shell hatch | Easy to clear out the charge; shell hatch, quantity/opening mechanism not included |
| ALS test SAG load cell | Mill support weighing monitoring, quantity/installation structure not documented |
| ALS trial SAG SCADA monitoring system | Collect mill quality, power, motor current, sprocket torque and speed; on-site monitoring support |
| ALS test SAG steel lining | 6ft×2ft test mill internal lining |
| ALS test SAG discharge grid | Nominal 10mm grate size; no extrapolation of historical grinding holes |
| ALS test SAG pulp discharge lifting plate | conventional hockey stick pulp lifters; quantity/thickness not specified |
| ALS test SAG optional external discharge grating plate | Can form 2 or 4 75mm stone ports, the plan does not choose to configure the whole machine to coexist |
| ALS test SAG feed chute | 450mm, ROM or prepared drill core test material |
| ALS test SAG transmission sprocket | Main text drive chain sprocket torque monitoring object; no push chain specifications, number of teeth/reducer |
| ALS test SAG classification tower | Laboratory mill system integration package, non-cylinder BOM or approved Hardinge manufacturing parts |
| ALS test SAG feeding and discharging conveying system | Laboratory feed/discharge conveyor system, specific number/type/manufacturer not specified |
| Component | Location |
|---|---|
| CSA main grinding and secondary grinding drive motor | Original configuration of two main mills with 900kW and one second stage with 1130kW; not extrapolated to all Cascades |
The Autogenous / semi-autogenous mill covers 2 models: Hardinge Cascade autogenous mill series, Hardinge AG / SAG mills. Former and renamed designations are listed in the models table on this page.
The Autogenous / semi-autogenous mill is also documented under these designations: Hardinge Cascade autogenous mill series, Hardinge Cascade 6.6m×2.1m, Hardinge AG / SAG mills, Hardinge Koppers 32ft×14ft AG→SAG, Hardinge 6ft×2ft SAG Mill.
The Autogenous / semi-autogenous mill is listed under the Hardinge brand as: AG / SAG mill. Period: 2023. Status: Historical model.
24 components are recorded, including: CSA main grinding and secondary grinding drive motor, Double wound rotor motor, Transmission reducer, Transmission pinion, Large ring gear in the middle of the cylinder, 72 rows of lining plates and lifting bars, Wedge between lining plates, Internal and external discharge grate plate and more. The full list with locations is in the components table on this page.
CSA: 2022-09 Metso1.6MW; 2023.
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