WEAR PARTS · GRINDING

Mill Liners

Ball and SAG mill liner sets cast in Mn13 (manganese steel) and alloy steel, matched to your mill’s shell and head profile. Cast to OEM dimensions or to your drawing, heat treated in-house, hardness recorded per batch.

Lead time: around 30 days from order, depending on order size · Delivered to site across Zambia, DRC and other neighbouring countries

Industrial mill gear component, representative of mill liner castings

DIRECT ANSWER

What are mill liners?

Mill liners are the replaceable wear plates bolted inside the shell and heads of ball and SAG mills. They protect the mill shell from the grinding charge and lift it to maintain grinding action; lifter and plate profiles are matched to the mill’s diameter and duty. Cast in manganese or alloy steel depending on the impact-to-abrasion balance, they are replaced in sections as the profile wears down.

Cast Bespoke to Your Mill

Every liner set we cast is matched to the specific mill it will run in: either to your own drawing, to the worn liner you send us, or to OEM dimensions you confirm with us directly. We don’t publish a public catalogue of drawing numbers or client specifications: casting to your mill’s exact shell and head profile, rather than off a generic reference list, is how we keep lifter geometry and grinding action right first time.

Send your mill make, model and diameter, a drawing, or a worn sample, and we will confirm dimensions, material grade and hardness before we quote.

Fits Equipment

Ball mills and SAG mills used in mineral processing. Machine list to be confirmed per OEM.

Material Choice for Mill Liners

Grade	Choose When
Mn13	Standard duty, mixed ore, best value per tonne milled
Alloy steel	Higher-impact SAG duty where toughness matters more than pure abrasion resistance

1. You send the detail

Machine model, liner position, quantity: by WhatsApp or the form. Drawing by email if you have one.

2. We confirm the spec

We match a drawing reference or take dimensions off your worn part, and agree the material grade.

3. Quote & lead time

Written price, material grade, lead time and delivery terms: inside one working day.

4. Cast, machined, delivered

Cast and heat treated in Kalulushi, hardness recorded, delivered to site.

FAQ: Mill Liners

How long should a set of mill liners last?

Wear life depends on ore hardness, mill speed and duty cycle. [TBC: confirm typical wear-life ranges before publishing.]

Can you cast liners from a worn sample instead of a drawing?

Yes: dimensions are taken off the worn liner and a pattern made if no drawing is available.

Mn13 or alloy steel: which should I order?

Mn13 suits most milling duty and is the default choice; alloy steel is worth considering for higher-impact SAG applications where toughness matters more than pure abrasion resistance.

What is the minimum order for mill liners?

MOQ depends on the product and a number of other factors. Send us your part number or drawing and we’ll confirm the minimum for your order.