Drawing and Engineering Review
We review mating surfaces and interface dimensions and assess material, heat treatment and manufacturing feasibility.
Spider arm shield
Protects the spider arm casting from falling material impact and wear.
Spider arm shield (Spider Arm Shield)— Gyratory Crusher Wear part, position 18.
Location and Function
| Material Options | High-manganese steel, martensitic wear-resistant cast steel or quenched and tempered wear plate of approximately 360–500 HB |
| Typical Properties and Acceptance Criteria | Exposed to both lump impact and sliding abrasion. Match the material to lump size, drop height and whether a protective material bed forms. High-manganese steel needs sufficient impact to work-harden. Protect the hole edges, ends and welded or bolted areas of hard plate against brittle fracture and loosening. |
| 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
OEM installations
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.