About HAZEMAG and HAZEMAG 791 blow bar
HAZEMAG is a world-famous German manufacturer and the inventor of the modern horizontal shaft impact crusher, founded in 1946. With decades of crushing technology research and practical site experience, HAZEMAG impact crushers are widely applied in aggregate quarry, cement production, construction waste recycling, asphalt crushing and mineral processing industries. HAZEMAG HSI series impact crushers are well recognized for stable performance, high reduction ratio and good cubic shape of final crushed products, and they are popular in stationary and mobile crushing plants all over the world.
The HAZEMAG APK50 is a secondary impact crusher belonging to the APK series, one of the most widely deployed horizontal shaft impactor (HSI) lines in the global aggregates industry.
The HAZEMAG 791 blow bar is a critical wear component designed for the HAZEMAG APK50 secondary impact crusher, part of the well-known HAZEMAG APK series. This blow bar is also referenced in the industry by the combined designation HAZ791/APK50, reflecting its direct compatibility with the APK50 impactor model. The blow bar measures 670 mm in length,
Working principle
When the crusher runs, the rotor rotates at high speed. The HAZEMAG 791 blow bar fixed on rotor hits incoming rock, concrete, limestone and other materials with huge kinetic energy. The raw material is smashed by impact force, then strikes the impact aprons inside the crushing chamber, and gets broken repeatedly. The blow bar bears continuous impact and abrasive wear during the whole crushing cycle, which makes it the fastest-wearing component in the impact crusher. The service life and material quality of HAZEMAG 791 blow bar directly decide the crusher uptime, production capacity and final product quality.
Why choose high chrome with ceramic type HAZEMAG 791 blow bar
Normal high-chrome blow bars have good wear resistance, but in highly abrasive working conditions, they still wear out quickly and need frequent replacement. The high chrome with ceramic composite type combines high chromium iron matrix and hard ceramic inserts. This composite material solves the conflict between impact toughness and abrasion resistance.
Material advantages and features
- Extreme wear resistance: Ceramic inserts own ultra-high hardness. Compared with ordinary pure high chrome blow bars, the service life can be increased greatly, reducing replacement frequency obviously.
- Balanced toughness: High chrome matrix provides enough impact resistance to avoid unexpected cracking and breaking under normal secondary crushing working conditions, while ceramic inserts undertake most abrasive erosion.
- Stable crushing performance: The ceramic working surface keeps sharp for a longer time, maintaining stable crushing efficiency and consistent aggregate grain shape, avoiding production drop caused by fast wear of blow bar edge.
- Lower total operation cost: Less frequent replacement means fewer machine shutdown hours, saving labor cost for part changing and reducing downtime loss for your crushing plant.
- Strong thermal fatigue resistance: Ceramic inserts help dissipate friction heat generated during continuous crushing, reducing thermal deformation and thermal cracking risk of the blow bar.
About SAIKUANG
SAIKUANG is a professional wear casting foundry focusing on impact crusher blow bars and mining wear parts. We have rich experience manufacturing HAZEMAG compatible blow bars including HAZEMAG 791 Blow bar.
Our HAZEMAG 791 blow bar adopts advanced composite casting technology. Strict chemical composition control and standardized heat treatment guarantee stable metallurgical quality. 1:1 precision moulding ensures perfect interchangeability, fits directly into HAZEMAG impact crusher rotor without modification. Every batch will go through hardness inspection, dimensional check and metallurgy test before delivery.
We can customize high chrome ceramic HAZEMAG 791 blow bars according to customers’ working conditions, such as limestone, concrete recycling, asphalt and abrasive rock crushing. Our products deliver long service life, reliable performance and competitive cost per ton crushed material. Many global crushing plant operators choose SAIKUANG as their trusted supplier for HAZEMAG blow bar replacement.
If you are looking for reliable aftermarket replacement parts for HAZEMAG APK50 crusher, please feel free to contact Saikuang Casting. Send us your part numbers, drawings or working‑condition information, we will offer you a competitive quotation and professional technical support.
Your Reliable Partner for Crusher Spare Parts
Email: infosk@skpremiumcasting.com
Tel: 0086-17351780508
