Drawing and Engineering Review
We review mating surfaces and interface dimensions and assess material, heat treatment and manufacturing feasibility.
Secondary Apron Liner
Continues crushing and controls product shape, size and circulating load.
Secondary Apron Liner (Second Apron Liner)— Impact Crusher Wear part, position 10.
Location and Function
| Material Options | Martensitic wear-resistant steel, high-chromium white cast iron, ceramic/MMC composites or high-manganese steel |
| Typical Properties and Acceptance Criteria | The second stage usually handles smaller material than the first, allowing higher hardness after impact limits are established. Martensitic steel commonly lies around 45–55 HRC; high-chromium working layers are commonly around 58–65 HRC and better suited to steady high-abrasion, lower-impact duty. Control composition, heat treatment, hardness distribution, cracks, mounting faces and toughness around bolt holes. |
| Principal Failure Mechanism | Sliding or three-body abrasion, localized impact and cracking around fastener holes |
Information Required for RFQ
- Equipment manufacturer, machine model, serial number, model details and latest drawing revision;
- Part dimensions, unit weight, key tolerances, assembly and fastening method;
- Current material, chemical composition, heat treatment, hardness and mechanical property reports;
- Processed material, maximum particle size, hardness/abrasiveness, moisture and tramp material records;
- Speed, load, temperature, pressure, process medium chemistry and continuous operating time;
- Failure photographs, wear measurements, crack/fracture locations and current service life;
Materials and values are for preliminary engineering selection. Final chemical composition, heat treatment, hardness and dimensional tolerances must follow the OEM drawings and technical agreement.
Related Pages
Equipment, Materials and OEM Installations
Use these links for engineering pre-selection. Final fit must be checked against the full model, serial number, drawing revision, dimensions and actual duty.
Equipment
Related materials
Independent aftermarket information. OEM names and trademarks belong to their owners and do not imply authorization, affiliation or endorsement. Confirm the series, full model, serial number, drawings and duty before manufacture.