Drawing and Engineering Review
We review mating surfaces and interface dimensions and assess material, heat treatment and manufacturing feasibility.
Hammer Shaft / Hammer Pin
Allows the hammers to swing freely and transfers their impact reaction loads to the rotor discs.
Hammer Shaft / Hammer Pin (Hammer Axle / Hammer Pin)— Hammer Crusher Wear part, position 02.
Location and Function
| Material Options | Quenched and tempered alloy steel such as 42CrMo/SAE 4140 or 34CrNiMo6, with induction hardening or wear-resistant surface treatment where required |
| Typical Properties and Acceptance Criteria | Hammer shafts withstand alternating bending, shear, impact and fretting in the hammer holes. Typical quenched and tempered core hardness may be around 260–340 HB. Local surface hardening must retain a tough core and a controlled case transition. Acceptance checks include material, UT/MT, straightness, roundness, surface finish, hardened case, end locking dimensions and hammer hole fit. Remaining section and stress concentration after grooving matter more than a single hardness reading. |
| Principal Failure Mechanism | Impact, cutting and abrasion |
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.