Price analysis of 15 kW Roots blower**
**A Comprehensive Perspective from Material Costs to Market Supply and Demand**
**1. Price components**
|Cost Item | Proportion | Explanation|
|--------------|--------|--------------------------|
|Cast iron parts | 35 | Mainly made of HT250 material|
|Impeller assembly | 25 | CNC milling accuracy needs to reach IT7 level|
|Transmission System | 15 | Gear Accuracy AGMA Level 12|
|Motor | 12 | Energy Efficiency Level Impact Price Difference ± 8|
|Other | 13 | Including seals, control systems, etc|
**2. Market price range in 2023**
-Economic type: 28000-35000 yuan (domestic cast iron shell, ordinary bearings);
-Industrial grade: 42000 to 58000 yuan (resin sand casting, SKF bearings);
-* * High end customized type * *: 65000~90000 yuan (stainless steel lining, integrated frequency conversion design).
**3. Procurement Strategy Suggestions**
-* * Tendering Techniques * *: Require suppliers to provide:
-Third party vibration value report (should be ≤ 4.5mm/s);
-24-hour continuous operation temperature rise test data (shell temperature ≤ 85 ℃);
-* * Cost Control * *:
-Batch purchase (≥ 5 units) can receive a discount of 12-15;
-Choosing regional manufacturers can save 8-10% on logistics costs.
