Bowl Liner And Concave
The fixed half of the cone crushing chamber, cast in seven manganese grades
What This Casting Does And Why It Matters
The bowl liner — the concave — is the stationary wear face of a cone crusher. Its profile sets the closed side setting, the nip and the shape of the product leaving the chamber. PangLei casts bowl liners and concave rings in high manganese from Mn13 to Mn22Cr3, machines the seating face on vertical lathes up to Ø3.4 m and issues a dimensional inspection report before the liner is packed. Because we already hold finished patterns for most HP, GP, CH, CS and Symons type chambers, a repeat liner goes straight into moulding.
Technical Features
- Cast in Mn13, Mn13Cr2, Mn18, Mn18Cr2, Mn20Cr3, Mn22Cr2 or Mn22Cr3
- Coarse, medium and fine chamber profiles reproduced from the original part
- Machined on vertical lathes from Ø1.25 m to Ø3.4 m
- Bottom-poured from 5 t intermediate frequency furnaces
- Quenched within 30 seconds of furnace withdrawal in a 2,000 m³ stirred pool
What You Get That You Would Not Get Elsewhere
Seat machined to drawing so backing compound sits in an even layer, not in pockets
Alloy chosen for your feed instead of a single catalogue grade
Finished patterns for common chambers remove pattern cost and pattern lead time
Chemistry and hardness traceable to a retained sample kept for three years
The Failures This Part Is Cast To Prevent
- Liners that will not seat evenly against the bowl
- Manganese too soft for the feed, rounding off before the planned change-out
- Long OEM lead times on a part that is changed several times a year
- Chamber profiles no longer offered for older machines
Who It Is For
- Quarry and aggregate producers running secondary and tertiary cones
- Mining contractors crushing abrasive ore
- Crusher dealers stocking liner sets
- Mobile cone plant operators
Application Scenarios
- Hard rock secondary crushing
- Tertiary crushing for concrete aggregate
- Copper and iron ore reduction circuits
- Mobile cone plant on recycling sites
Technical Data For Bowl Liner And Concave
Every figure here comes from our published foundry capability. Where a value depends on your machine it is confirmed at quotation rather than guessed.
| Specification | Detail |
|---|---|
| Part type | Bowl liner, concave, concave ring |
| Material grades | Mn13, Mn13Cr2, Mn18, Mn18Cr2, Mn20Cr3, Mn22Cr2, Mn22Cr3 |
| Manganese content | 11-23% depending on grade |
| Carbon content | 1.00-1.45% depending on grade |
| Chromium content | 1.5-3% on the Cr-bearing grades |
| Phosphorus | < 0.06% |
| Sulphur | < 0.04% |
| Max machining diameter | Ø3.4 m |
| Max single casting weight | 10 t |
| Heat treatment | Water quenched, solution treated |
| Inspection | Chemical analysis and dimensional report standard |
Manganese Grades Available For This Part
| Material | Mn % | C % | Si % | P % | S % | Cr % |
|---|---|---|---|---|---|---|
| Mn13 | 11-14 | 1.00-1.45 | 0.3-1.0 | < 0.06 | < 0.04 | — |
| Mn13Cr2 | 11-14 | 1.15-1.25 | 0.3-0.8 | < 0.06 | < 0.04 | 1.5-2.5 |
| Mn18 | 17-19 | 1.2-1.3 | 0.3-0.8 | < 0.06 | < 0.04 | — |
| Mn18Cr2 | 17-19 | 1.2-1.3 | 0.4-0.9 | < 0.06 | < 0.04 | 1.5-2.5 |
| Mn20Cr3 | 19-21 | 1.2-1.3 | 0.3-0.8 | < 0.06 | < 0.04 | 2.5-3 |
| Mn22Cr2 | 21-23 | 1.1-1.4 | 0.3-0.8 | < 0.06 | < 0.04 | 1.5-2.5 |
| Mn22Cr3 | 21-23 | 1.1-1.4 | 0.3-0.8 | < 0.06 | < 0.04 | 2.5-3 |
How This Casting Is Made
Pattern Making
Once drawings are confirmed, pattern making starts immediately in our own pattern shop. Thousands of finished patterns are already on the shelf, so repeat parts skip this step entirely.
Sandbox Making
Casting Process Simulation System (CPSS) is run before the moulds are made. The cavity is kept as solid and as clean as possible so that inclusions have nowhere to start.
Melting And Pouring
Charge materials are bought to a high standard and temperature is controlled through the whole pour to achieve a fine grain structure. Samples are taken to verify the analysis and adjusted if needed, then kept for at least three years for traceability.
Sandbox Opening
Also called casting cleaning. After initial cooling the box is opened, risers and runners are removed and the casting is cleaned. Cooling time is set by casting size, not by the clock.
Heat Treatment
Heating temperature is strictly controlled and castings are spaced in the furnace so they heat uniformly and meet the water fully. Quenching begins within 30 seconds of withdrawal from the oven.
Machining
After rectifying and polishing, castings are machined strictly to drawing for correct fitment. QC then carries out dimensional inspection and issues the dimensional inspection report.
Inspection
Our own physical and chemical laboratory covers spectrometry, hardness, microstructure, dye penetrant and dimensional inspection on site rather than at a third party.
Packing And Delivery
Finished parts are packed on steel pallets for forklift handling, to international standards for road, rail, sea and air transport.
Inspection Supplied With This Part
Chemical analysis and a dimensional inspection report are standard on every order. The remaining procedures are carried out in our own physical and chemical laboratory when specified at order stage.
| Procedure | When |
|---|---|
| Chemical Analysis | standard on every heat |
| Dimensional Inspection Report | standard on every order |
| Hardness Testing | if specified |
| Tensile Testing | if specified |
| Microstructure Analysis | if specified |
| Magnetic Particle Testing | if specified |
| Dye Penetrant Testing | if specified |
| Ultrasonic Testing | if specified |
Laboratory Equipment
- German-made OBLF direct-reading spectrometer
- Hardness testing equipment
- Metallurgical microscope
- Dye penetrant inspection equipment
- Dimensional inspection equipment
How This Part Compares With The Alternatives
| Compared With | What Changes |
|---|---|
| An OEM bowl liner | Same chamber geometry and the same manganese chemistry, from a foundry with its own laboratory, without OEM pricing or OEM lead time on a consumable. |
| A liner cast in a single default grade | Seven grades are available, so the alloy can be matched to how abrasive your feed actually is rather than to what the foundry keeps in one ladle. |
| An unmachined casting | Our liners are machined on vertical lathes after rectifying and polishing, and a dimensional inspection report is issued, so the liner seats without on-site grinding. |
If Your Part Is Not Standard
With our own pattern shop, a 3D scanner and Casting Process Simulation System, we work from your drawing, your worn sample, or a scan taken on your site. Material grade, profile and machining are all specified against your machine rather than against a catalogue.
- Reverse engineering from a worn part, with no drawing required
- On-site 3D scanning where the component cannot be removed
- Material grade selected against your feed rather than a default
- Pattern retained afterwards, so repeat orders skip pattern making
Fitting And Getting The Life Out Of It
- Check the bowl seat is clean and free of old backing compound before fitting
- Confirm the liner part number and profile against the dimensional inspection report supplied
- Apply backing compound to the manufacturer's thickness; a machined seat needs an even layer only
- Torque the clamping arrangement in stages and re-check after the first hours of running
- Record the tonnage at change-out so the next grade recommendation can be sharpened
Bowl Liner And Concave At The Foundry
Parts Usually Ordered Alongside This One
Cone Crusher Mantle
The moving cone face, cast to gyrate against your existing bowl liner
View Part →
Cone Crusher Burning Ring
The sacrificial ring that protects the head above the mantle
View Part →
Cone Crusher Rim Liner
Protects the bowl rim above the concave from feed washing
View Part →
Fixed Jaw Plate
Stationary jaw dies in high manganese, from 600 × 400 machines up to a C200
View Part →This Part In Real Orders
Repeat Cone Sets 603/9052 And 603/9106 For A Pegson 1000 Maxtrak
603/9052 bowl liner and 603/9106 mantle in Mn22Cr2
Read The Case →
A Mixed Delivery Of Bowl Liners Mantles And Customised Castings To Europe
442.7989-02, 442.8251-02, 442.7225-02, 442.8417-02, 442.7379.90 and customised castings in Manganese grades to order
Read The Case →Guides That Cover This Part
Manganese Steel Grades For Crusher Wear Parts Explained
Mn13 through Mn22Cr3 — what the manganese and chromium content actually changes, and how to pick a grade from your feed rather than from a catalogue.
Read Guide →
Heat Treatment Of Crusher Wear Castings And Why 30 Seconds Matters
Solution treatment and quenching decide whether a manganese casting is tough or brittle. The controls that make the difference are simple and unforgiving.
Read Guide →
The Inspection Procedures Behind A Crusher Wear Casting
Which tests are standard, which are on request, and what each one actually tells you about the part you are buying.
Read Guide →
Reducing Crusher Downtime With Ready Made Patterns And Stocked Parts
Lead time on a wear part is mostly pattern time and scheduling. Both can be removed, and the difference is measured in days rather than weeks.
Read Guide →Bowl Liner And Concave Questions
What is the difference between a concave and a bowl liner?
They are the same wear part under different names. Bowl liner is the usual term on Metso HP and GP machines, concave or concave ring on Sandvik and Symons type chambers. We cast both.
Can you cast a fine, medium and coarse version of the same chamber?
Yes. Chamber profile is part of the pattern, so we hold or build patterns for each version rather than machining one profile into another.
How long does a repeat order take?
If we hold the pattern, moulding starts immediately and no pattern time is added. Lead time for a specific set is confirmed at quotation, since it depends on quantity and furnace scheduling.
Will the liner fit an OEM mantle already in the machine?
Yes, provided the mantle profile and the setting are as original. Tell us the mantle part number in the machine and we will confirm the pairing before pouring.
Get A Price For Bowl Liner And Concave
Send the machine model, the part number if you have one, and the quantity. If you have neither, a photograph with the main dimensions is enough to start.