1380 Impact Crusher Blow Bars
High Chrome Solution for Kazakhstan Quarry
The 1380 blow bar is the key wear part of 1380 type impact crushers.
It is widely used in quarry production lines in Kazakhstan,
where stable performance and long service life are critical.
Working Principle
The rotor drives the blow bars at high speed.
Materials enter the crushing chamber
and are hit directly by the blow bars.
They are then thrown to the impact plates
for repeated crushing.
After multiple impacts,
the material reaches the required size.
The blow bar is the core impact-bearing part,
so its material and structure directly affect performance.
Working Conditions in Kazakhstan
Most quarries process hard rock:
Granite
Basalt
Quartz
These materials are highly abrasive
and create strong impact and rapid wear.
Common Problems in 1380 Impact Crushers
1. Uneven Wear
Side wear and edge wear are common.
Usually caused by unbalanced feeding.
When material is not evenly distributed,
one side wears faster and fails earlier.
Solution
Use high chrome material with strong wear resistance.
Optimize back rib structure for better stress distribution.
Adjust feeding direction to ensure even material flow.
2. Chipping and Breakage
Occurs under high impact or oversized material.
Metal contamination can also cause damage.
If hardness is high but toughness is low,
blow bars will crack or break.
Solution
Use high chrome alloy with balanced hardness and toughness.
Control feed size and install iron removal equipment.
3. Loose Fitting and Jamming
Long-term operation may loosen bolts.
This causes movement and possible jamming.
Solution
Use trapezoidal back rib design
to ensure tighter and more stable installation.
Regular inspection and bolt tightening are necessary.
Material and Production Control
High chrome blow bars are suitable
for medium to high hardness crushing.
They provide:
Stable wear resistance
Longer service life
Reduced replacement frequency
We strictly control every step:
Chemical composition for stable chromium content
Casting process to reduce internal defects
Heat treatment to balance hardness and toughness
Dimensional inspection for proper fitting
Quality Control
We focus on real data, not appearance.
Chemical composition testing
Hardness testing
Dimensional inspection
These ensure each blow bar
meets real working requirements.
Performance Improvement
After using our blow bars,
the Kazakhstan quarry achieved:
Longer service life
Reduced downtime
More stable production
Lower cost per ton
Stable crushing also improved
final product quality.
About Polarislink
TangShan Polarislink Advanced Materials Technology Co Ltd
focuses on high chromium wear parts production.
We provide:
Customized blow bars
Technical support
Installation guidance
Operation advice
Helping customers achieve stable
long-term production in quarry and mining projects worldwide.
