HT250/HT300 High-Strength Gray Cast Iron Cast Iron Roots Blower
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CT6-CT7 Dimensional Tolerance EPC Cast Iron Casting
Product Description
Lost Foam High-Precision Cast Iron Roots Blower Castings
Experience silent operation and stable gas flow with our precision cast iron Roots blower castings. Engineered for high efficiency and low noise performance, these EPC (Expendable Pattern Casting) components deliver exceptional pneumatic reliability.
Precision Engineering for Superior Performance
Roots blowers operate through the precise meshing of two or three blades to achieve constant volume air delivery. The foundation of their performance lies in high-precision, high-rigidity cast iron shell and end cover castings that minimize vibration and ensure long service life.
Why Leading Manufacturers Choose Our EPC Castings
Extreme Dimensional Accuracy
Achieve CT6-CT7 dimensional tolerance with bearing seat hole position error ≤±0.1mm, ensuring uniform clearance and smooth rotor operation.
Superior Surface Quality
Inner cavity surface roughness Ra ≤ 6.3μm, ready for fine grinding without rough machining requirements.
Premium Material Selection
HT250/HT300 high-strength gray cast iron with dense structure and excellent graphite shape for superior vibration damping and noise reduction.
CNC-processed foam models with vacuum negative pressure EPC technology
No parting surfaces or core head deviation for perfect alignment
Shell and support legs integrally cast for enhanced structural rigidity
Binder-free waste sand for environmentally friendly production
Digital design reduces development cycle by 40%
Industry Applications
Municipal sewage treatment aeration systems
Aquaculture oxygenation
Pneumatic conveying of powders and granules
Chemical and pharmaceutical positive pressure gas supply
Vacuum dehydration and defoaming equipment
Comprehensive Product Range
We support batch customization for DN80-DN600 full series fan shells, wallboards, and end covers. Compatible with two-blade straight waist type, three-blade twisted blade type, and high-pressure water cooling configurations.
What We Deliver Beyond Castings
Lower vibration and noise levels • Higher volumetric efficiency and energy efficiency ratios • Reduced assembly rework and after-sales failures • Faster new product development and mass production response
Every Roots blower with low noise and high efficiency relies on precisely engineered cast iron castings. Our EPC technology creates the tangible power behind silent, energy-saving, and worry-free operation.
Precision in millimeters ensures airflow stability for thousands of cycles.
Contact us immediately for technical information, sample support, and exclusive quotations!