The price of Roots blower is greatly affected by factors such as model, material, and configuration. The following is a detailed price analysis and selection suggestions:
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**1、 Overview of Price Range**
|* * Type/Power * * | * Price Range (RMB) * * | * * Typical Application Scenarios * *|
|---------------------|----------------------|------------------------------|
|* * Small (≤ 7.5 kW) * * | 5000~20000 yuan | Laboratory aeration, small pneumatic conveying|
|Medium sized (11~55 kW) * * | 20000~80000 yuan | Sewage treatment, food packaging|
|* * Large scale (75~315 kW) * * | 80000~300000 yuan | Blast furnace blowing and chemical process|
|* * High voltage/explosion-proof customized type * * | 100000~500000 yuan | Petrochemical and flammable gas transportation|
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**2、 Key factors affecting prices**
1. * * Material differences**
-* * Cast iron standard type * *: Basic version (such as HT250), price.
-Stainless steel type (304/316L): 30-50 more expensive than cast iron, with strong corrosion resistance.
-* * Special coating * *: such as PTFE anti-corrosion coating, with an additional cost of 20-40.
2. * * Technical configuration**
-* * Variable frequency control * *: Increases costs by 15~25 (energy-saving and recoverable costs).
-Explosion proof certification (Ex d Ⅱ BT4): Price increase of 30-50.
-Imported brand gears/bearings: 20-35% more expensive than domestic ones (such as SKF bearings).
3. Flow and pressure**
-At the same power, high-voltage models (>78.4 kPa) are 15-30% more expensive than low-voltage models.
-Customized casing is required for high flow rates (>100 m3/min), and the price increases non linearly.
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**3、 Comparison of mainstream brand prices**
|* * Brand Type * * | * * Price Level * * | * * Features * *|
|---------------|----------------------|----------------------------|
|* * Domestic ordinary * * | Low (such as,) | High cost-effectiveness, suitable for conventional working conditions|
|* * Domestic high-end * * | Medium (e.g.) | Better material/precision, longer lifespan|
|* * Imported brands * * | High (such as Hibon, Taiko) | Strong reliability, priced 2-3 times higher than domestic brands|
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**4、 Suggestions for optimizing selection costs**
1. * * Clarify requirements**
-Example: For sewage treatment aeration (50 m3/min, 49 kPa), domestic three leaf type is selected, which costs about 50000 to 80000 yuan.
-Avoid blindly pursuing high pressure/large flow, and wasting budget by configuring beyond specifications.
2. * * Long term cost considerations**
-Variable frequency models: Although they are 20000 to 30000 yuan more expensive, they can save up to 30-50 yuan in annual electricity bills.
-Stainless steel material: In corrosive environments, its lifespan is 3-5 times longer than cast iron.
3. * * Second hand/Rental Options**
-Second hand equipment: priced at 30-60% of the new machine (subject to machine condition inspection).
-Short term demand: The monthly rental fee is about 3-5% of the new machine price.
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**5、 Additional fee reminder**
1. * * Supporting cost * *:
-Silencer: 2000~10000 yuan
-Imported filter: 3000~15000 yuan
2. * * Installation and debugging * *: Approximately 5-10% of the equipment price.
3. * * Annual maintenance cost * *: approximately 2-5% of the equipment price (lubrication, replacement of vulnerable parts).
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**6、 Procurement channel reference**
1. * * Factory direct sales * *: Transparent prices, support customization (recommended for large customers).
2. * * Agent * *: Provides local services at an additional cost of 10-20 yuan.
3. * * E-commerce platform * *: Alibaba 1688/JD Industrial Products, suitable for comparing standard models.
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**Summary: Roots blowers range in price from 5000 yuan to 500000 yuan and require precise selection based on flow rate, pressure, medium, and brand. Suggest providing specific parameters (such as Q=? M3/min, P=?)? Obtain accurate quotes based on kPa, and prioritize energy efficiency and lifespan over simply low prices.
