WEAR PARTS · IMPACT CRUSHING

Blow Bars

Impactor blow bars cast in manganese steel or high-chrome iron for horizontal-shaft impact crushers. 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

Steel bar stock, representative of blow bar material

DIRECT ANSWER

What is a blow bar?

A blow bar is the replaceable wear part bolted to the rotor of a horizontal-shaft impact crusher. It strikes the feed material directly, so it is cast in manganese steel for toughness or high-chrome iron for abrasion resistance depending on the feed. Bars are replaced in sets when worn unevenly or when impact energy drops.

Cast Bespoke to Your Machine

Every blow bar we cast is matched to the specific rotor it will run in: either to your own drawing, to the worn bar 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 machine’s exact requirement, rather than off a generic reference list, is how we keep fit and balance right first time.

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

Fits Equipment

Horizontal-shaft impact crushers (HSI) used in quarrying and recycling. Machine list to be confirmed per OEM.

Material Choice for Blow Bars

Grade	Choose When
Mn steel	Toughest option, resists cracking under heavy impact and shock loading
High-Cr iron	Best abrasion resistance where feed is hard and impact is moderate

1. You send the detail

Machine model, blow bar 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: Blow Bars

How long should a set of blow bars last?

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

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

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

Mn steel or high-Cr iron: which should I order?

Mn steel suits high-impact duty and is the tougher choice; high-Cr iron is worth the extra cost where feed is hard and abrasive and impact loading is moderate.

What is the minimum order for blow bars?

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.