Every heat tested. Every result traceable.
Grinding media is judged in the mill: by wear, by breakage and by the steel it leaves behind in the circuit. Our quality system exists to make those results predictable before a bag is loaded.
From bar to mill in seven controlled steps
Bar stock
Hot-rolled round bar from qualified mills. Every heat is analysed on the spectrometer before release.
Induction heating
Bars are heated to forging temperature in seconds with temperature logged per batch.
Forging and rolling
Hammer and die forging for large balls; skew rolling for high volumes. Dies checked for size and roundness.
Quenching
Controlled quench sets the hardened case. Temperature and medium recorded for every batch.
Tempering
A continuous furnace relieves stress and fixes the hardness profile from surface to core.
Testing
Hardness profile, Charpy impact, drop-ball and metallography on samples from each heat.
Packing and delivery
One-tonne bags or drums labelled by heat number, delivered to the mine on a monthly schedule.
How a heat is controlled
Incoming bar
Spectrometer analysis of every bar heat against the alloy specification; hardenability checked before release to production.
Heating and forming
Induction and furnace temperatures logged per batch; forging and rolling dies inspected for size and roundness.
Quench and temper
Quench temperature, medium and tempering cycle recorded for every batch; hardness profile verified on sectioned samples.
Testing
Surface and core hardness, Charpy impact, drop-ball test and metallography on samples from each heat, with results on the certificate.
Dimensional control
Diameter, roundness and mass per ball checked against tolerance; oversize and undersize rejected.
Certificate
A test certificate with chemistry, hardness profile, impact and drop-ball results accompanies every delivery.
Standards framework
| ISO 9001:2015 | Quality management system in place; certification audit scheduled 2027 |
|---|---|
| GB/T 17445 | Forged steel grinding balls, referenced for sizes, hardness and testing |
| ASTM A532 | High-chrome cast iron grades for cast balls |
| Customer media specifications | Test regimes of major copper and gold concentrators applied on request |
| ISO 45001 | Occupational health and safety management aligned |
| ISO 14001 | Environmental management aligned |
Certification status is stated as at September 2026. Certificates and test reports are provided to customers on request.
Health, safety and environment
Zero-harm target
Every task is planned with a risk assessment; stop-work authority for every employee.
Hot-work safety
Furnace, induction and forging areas controlled by permit-to-work; guarded presses and rolling mills.
Mill-site support
Field staff hold inductions and medicals for major mine sites.
Environment
Furnace emissions controlled, quench media recycled, scale and scrap returned to steelmaking.
Request a quote
Tell us your mill, ball size and monthly tonnage. We reply within two working days.