Silobas Industry ShanGu MJ Roots Blower Compressor | High Pressure Cast Iron Blower
Shangu MJ Roots Blower Compressor | Silobas High Pressure HT250 Cast Iron Blower | MingTian Machinery
Meta description： Shangu MJ series high‑pressure roots blower compressor, HT250 cast iron housing, optional 2205 stainless steel. For silobas bulk powder pneumatic conveying, wastewater aeration, biogas boosting. 1‑year factory warranty from MingTian Machinery.
Product Overview
Shangu MJ Roots Blower Compressor – a premium positive displacement blower manufactured by Shandong Mingtian Machinery Group. Built with rugged HT250 cast‑iron components and precision CNC‑machined three‑lobe rotors, it delivers stable airflow up to 98kPa pressure rise. Standard material HT250 cast iron, 2205 stainless steel available for custom corrosive working condition. Ideal for silobas bulk powder pneumatic conveying, aeration, aquaculture oxygenation, wastewater treatment and biogas compression.
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Performance & Features
Cast Iron Construction
- Standard HT250 cast‑iron casing & rotor
- Optional custom 2205 stainless steel
- Wear‑resistant for continuous industrial use
- Anti‑corrosion coating options available
3‑Lobe Rotor Technology
- Reduced pulsation & vibration
- Lower noise level (<85 dB)
- Higher volumetric efficiency
100% Oil‑Free Air
- Clean, uncontaminated discharge
- No oil carryover in process
- Ideal for silobas powder conveying
Precision Engineering
- CNC‑machined rotors & casing
- Dynamic balance tested impellers
- Class 5 precision helical gears
Low Maintenance
- Convenient oil lubrication system
- Heavy‑duty bearing & gear long service life
- Easy access for inspection
Quality Assured
- ISO 9001, CE certified
- 100% factory tested (2 hours run‑in)
- 12‑month warranty on complete unit
Technical Specifications (MJ Series)
Pressure rise: 9.8 – 98 kPa | Air capacity: 2 – 94 m³/min | Motor power: 2.2 – 220 kW
| Model | Bore (mm) | Pressure (kPa) | Air Volume (m³/min) | Motor Power (kW) |
| MJ‑80 | 80 | 9.8 – 98.0 | 2.35 – 6.43 | 1.5 – 18.5 |
| MJ‑100 | 100 | 9.8 – 78.4 | 3.75 – 10.31 | 2.2 – 18.5 |
| MJ‑125 | 125 | 9.8 – 98.0 | 4.91 – 13.66 | 4 – 37 |
| MJ‑150 | 150 | 9.8 – 98.0 | 12.63 – 30.19 | 5.5 – 75 |
| MJ‑200 | 200 | 9.8 – 98.0 | 33.01 – 59.32 | 15 – 160 |
| MJ‑200H | 200 | 9.8 – 98.0 | 25.73 – 50.15 | 11 – 110 |
Custom voltage (220V/380V/415V/440V/3KV/6KV/10KV), flange standard and 2205 stainless steel material available.
Application Fields
The Shangu MJ Roots Blower Compressor is a versatile solution trusted across industries worldwide, especially for silobas bulk powder conveying.
- Wastewater Treatment Aeration
- Silobas Bulk Powder Pneumatic Conveying
- Grain & Cement Pneumatic Conveying
- Aquaculture & Shrimp Farming Oxygenation
- Chemical & Petrochemical Process Air
- Biogas Compression & Recovery
- Power Plant Ash Handling
- Central Vacuum System
- Mining & Coal Preparation
Proven in 70+ countries – including Indonesia, Vietnam, India, Turkey, Mexico, South Africa, and more.
Supply Scope & Options
Standard Inclusions
- Roots Blower unit
- Inlet / outlet silencer with filter
- Flexible connector & check valve
- Pressure gauge & safety valve
- Common skid base & foundation bolts
- IE3 high‑efficiency electric motor
- Operation & maintenance manual
Optional Upgrades
- Soundproof enclosure
- Bearing vibration / temperature sensors
- Frequency converter control cabinet
- 2205 stainless steel rotor & casing
- Anti‑corrosion epoxy coating
- Explosion‑proof configuration
- Custom flange & special voltage
Quality & Warranty
- ISO 9001, CE, EAC certified
- 100% dynamic balance tested
- Full performance test report
- 12‑month warranty on whole machine
- Lifelong technical support & spare parts
Get a Tailored Quote in 24 Hours
Tell us your flow rate, pressure, medium and application – our engineers will recommend the best MJ model.
Phone / WhatsApp: +86 18766117068
Email: [email protected] | [email protected]
Website: https://www.mtrootsblower.com
Shandong Mingtian Machinery Group – No.18 East‑West Road, Phoenix Industrial Park, Zhangqiu, Jinan, China