Gray cast iron and ductile iron sheaves for elevator wire ropes. Casting and CNC machining are done within one group, so castability and machinability are reviewed together before tooling is made.
Gray cast iron or ductile iron. Rope grooves, bore and mounting faces machined to drawing. Groove profile checked on CMM and with profile gauges.
Sheave hardness governs groove wear and rope life. We test hardness against the specified range, backed by chemistry and microstructure checks.
| Hardness | Hardness tester |
|---|---|
| Groove profile | CMM and profile gauges |
| Dimensions | CMM measurement |
| Chemical Composition | Spectrometer |
| Strength | Tensile tester |
| Microstructure | Metallographic microscope |
| Materials | Gray cast iron FC250, FC300 (ASTM A48 Class 35 / 40) Ductile iron FCD450 – FCD550 |
|---|---|
| Part weight | 0.2 – 200 kg |
| Minimum Order Q'ty | From 100 pcs |
| Process | Casting, CNC machining, surface treatment, export packing |
| Documents | Material certificate, dimensional inspection report |
| Certification | ISO 9001 |