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Blow bars, impact plates and side liners for Hazemag HAZ791, HAZ792 and HAZ793 impact crushers.
Three models in this set: HAZ791, HAZ792 and HAZ793. These are primary impactors, and that changes the metallurgy question completely, because a primary bar meets the largest lumps in the circuit.
Hardness is not the first property to optimise here. Toughness is.
A bar on a primary impactor takes a direct hit from material that has not been reduced by anything upstream. A high-chrome bar in that position holds its hardness and then breaks, and a broken bar can take the rotor out with it. On primary duty we quote martensitic or a manganese grade for toughness and accept a shorter wear life, because a bar that fails by wear is a maintenance cost and a bar that fails by fracture is an outage.
On a heavy rotor the balance matters. A set of bars with a weight spread between them loads the bearings and shows up as vibration long before it shows up as uneven wear. We confirm weights across the set before shipping, and we will say when a repair, rather than a replacement, is the sensible call for one damaged bar.
Impact plates worn in a narrow band mean the material is hitting one line only, which usually points to the gap being too wide and lumps being hammered rather than thrown. Plates worn evenly over their face are doing their job. Reading this before ordering bars is how a plant avoids replacing good bars because a plate was the problem.
| Model | Parts | Chamber options | Material |
|---|---|---|---|
| HAZ791 | Blow Bar, Impact Plate, Side Liner | — | high chrome Cr26, Mn13Cr2 |
| HAZ792 | Blow Bar, Impact Plate, Side Liner | — | high chrome Cr26, Mn13Cr2 |
| HAZ793 | Blow Bar, Impact Plate, Side Liner | — | high chrome Cr26, Mn13Cr2 |
Lead time: 15 to 30 days from drawing or sample
HAZ791, HAZ792 and HAZ793, with bars, plates and side liners listed in the table above.
We can make it, but we will tell you what it does in that position, which is crack rather than wear. If the feed is genuinely fine and controlled we will say so and quote it.
Yes. On a heavy rotor we will ask about the weight of the bars still in the machine, so the replacement is matched and you are not left with an imbalance.
Brand names and model designations on this page describe which machines the parts fit. Shanghai Dynamix Power is an independent manufacturer of aftermarket replacement wear parts and is not affiliated with, authorised by, sponsored by or endorsed by any original equipment manufacturer. Original part numbers, where shown, are cross-references for identification only.
METSO™, SANDVIK®, SYMONS®, TEREX®, KLEEMANN®, TELSMITH® and HAZEMAG® are trademarks or registered trademarks of their respective owners.
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