Impact Crusher Break Plate
The impact aprons that turn rotor energy into product size
What This Casting Does And Why It Matters
Break plates — impact aprons — are the surfaces the material is thrown against. Their condition and position determine the reduction ratio and the product shape as much as the blow bars do. Worn break plates mean oversize, more recirculating load and an impactor working harder for the same output. PangLei casts break plates in manganese and high chromium to suit most makes and models of HSI crusher.
Technical Features
- Austenitic manganese steel or high chromium white iron
- Profile and fixing reproduced from the original plate
- Heat treated to the grade cycle
- Dimensional inspection report issued
What You Get That You Would Not Get Elsewhere
Restores the reduction ratio that worn aprons have quietly lost
Manganese or high chromium depending on feed and tramp metal risk
Cast with the blow bar order so the chamber is renewed together
Geometry reproduced from the original plate
The Failures This Part Is Cast To Prevent
- Oversize product blamed on the bars when the aprons are worn
- Rising recirculating load and falling throughput
- Aprons worn through into the chamber housing
- Break plates not stocked because they are changed less often than bars
Who It Is For
- Impact crusher operators
- Aggregate producers controlling product shape
- Recycling contractors
- Dealers supplying impactor wear packages
Application Scenarios
- Primary and secondary impact crushing
- Concrete recycling
- Asphalt reclaim
- Shaped aggregate production
Technical Data For Impact Crusher Break Plate
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 | Break plate, impact apron, impact plate |
| Material options | Austenitic manganese steel, high chromium white iron Cr15, Cr25, Cr30 |
| Models | Most makes and models of HSI crusher |
| Source geometry | Original pattern, customer sample or 3D scan |
| Heat treatment | To grade specification |
| Inspection | Chemical analysis and dimensional report |
| Supplied with | Blow bar orders |
| Packing | Steel pallet |
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 |
|---|---|
| Replacing blow bars only | Worn aprons cost reduction ratio no matter how new the bars are. The chamber is a system. |
| High chromium versus manganese aprons | High chromium resists abrasion better on clean rock; manganese survives tramp metal without cracking. |
| Weld repair of worn aprons | Overlay changes both the profile and the surface metallurgy; a replacement casting restores the designed geometry. |
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
- Inspect apron wear at every blow bar change
- Check and reset apron clearances after fitting
- Replace before wear reaches the housing
- Record product size change as aprons wear to plan the next change
Impact Crusher Break Plate At The Foundry
Parts Usually Ordered Alongside This One
Impact Crusher Blow Bar
Manganese, chrome, ceramic-insert and TIC-insert bars for horizontal shaft impactors
View Part →
Impact Crusher Side Liner
Chamber side protection that keeps the impactor housing out of the wear path
View Part →
VSI Rotor Tip
High chromium tips held finished in stock so the rotor is never the reason you stop
View Part →
VSI Cavity Wear Plate
Lines the crushing cavity where material leaving the rotor lands
View Part →
Impact Crusher Break Plate Questions
How often should break plates be replaced?
Less often than blow bars, but they should be measured at every bar change. Product oversize and rising recirculating load are the usual signs.
Which material?
High chromium on clean abrasive rock, manganese where tramp metal can arrive.
Can you cast a break plate for an older impactor?
Yes, from the worn part or a drawing, through our pattern shop.
Do these ship with blow bars?
Yes, on the same order and the same pallet.
Get A Price For Impact Crusher Break Plate
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.