SDSB Screw Blower
Specifically engineered for wastewater treatment, cement production, and specialized gas conveying applications. Advanced screw technology delivers exceptional energy efficiency with ultra-low pulsation, ensuring stable air supply and reliable 24/7 operation across diverse industrial environments.
15-50% Energy Savings
Dynamic energy efficiency ranging from 15% to 50% based on operating pressure. Higher pressure applications achieve maximum savings.
Low Noise & Low Pulsation
Low pulsation design minimizes air flow fluctuations, delivering quiet operation and stable pressure output.
Wide Operating Range
Flexible performance with 30–250 kPa pressure range and 4–308 m³/min flow capacity for diverse industrial applications.
Precision Engineering Inside
We don't just build machines; we engineer performance. Explore the internal components that make our screw blowers the industry benchmark for reliability.
High-Performance Rotor
Patented 3:4 profile manufactured from 42# steel ensures minimal deformation under high heat.
- Precision CNC Machining
Reliable Sealing System
Multi-layer seal design eliminates oil leakage. Imported seals offer superior high-temp resistance.
- Zero Oil Leakage
Durable FAG Bearings
Imported precision bearings with an optimized lubrication system for extended service life.
- Extended Lifespan
Anti-Corrosion Coating
Specialized coatings (Mo, Ni, PTFE, Hastelloy) adapt to various corrosive vacuum media.
- Chemical Resistant
Need custom configurations? Our engineers are ready to help.
Overcoming Roots Blower Limitations
Traditional Roots blowers face significant challenges in modern industrial applications. Our SDSB Screw Blower technology addresses these critical pain points.
High Noise Level
Roots blowers operate with high noise levels, typically reaching 110 dB with high pulsation, negatively impacting the working environment and operator safety.
Low Noise Operation
SDSB blower operates at only 85 dB with minimal pulsation, creating a quieter, safer working environment.
25 dB QuieterLimited Pressure Range
Roots blowers maximum pressure reaches only 80 kPa. Higher pressures cause increased internal backflow, resulting in excessive power consumption.
Wide Pressure Adaptability
Internal compression technology delivers 30-250 kPa pressure range, covering virtually all industrial blower applications.
3x Pressure RangeHigh Energy Consumption
Traditional Roots blowers consume excessive energy due to inefficient compression methods, leading to high operational costs and increased carbon footprint.
Superior Energy Efficiency
Advanced screw internal compression achieves 15-50% energy savings at optimal pressure range, dramatically reducing operational costs.
Up to 50% SavingsFrequent Maintenance
Roots blowers generate high temperature rise during compression. Heat transfer causes poor bearing lubrication, shortened seal life, and frequent failures.
Low Maintenance Design
Low temperature rise ensures optimal bearing lubrication and extended seal life, resulting in reduced maintenance frequency and lower costs.
Extended LifespanAdvanced Screw Blower Technology
Our SDSB series incorporates cutting-edge engineering innovations that deliver superior efficiency, reliability, and energy savings across all operating conditions.
Proprietary Multi-Arc Screw Profile Technology
The screw rotor adopts advanced British profile technology and features a proprietary multi-arc patented profile. The profile is formed by multiple circular arcs and their enveloping curves, enabling a smooth and continuous geometry with short contact lines. This integrated, one-piece design significantly reduces internal flow disturbance and mechanical losses during operation, forming a solid foundation for high efficiency and stable performance.
Optimized Rotor and Profile Structure Design
The blower utilizes a three-lobe rotor profile combined with a spiral tooth design. Within each operating cycle, six suction and discharge processes are completed, resulting in high working efficiency. The large rotor sealing angle effectively blocks gas leakage, while the increased inter-tooth volume allows greater air intake per rotation. This structural optimization enhances airflow capacity and improves overall volumetric performance.
High Volumetric Efficiency
Thanks to the large sealing angle of the rotors and the enlarged tooth chamber volume, internal leakage and backflow are effectively minimized. The optimized screw profile ensures sufficient air intake and stable delivery, leading to significantly improved volumetric efficiency across a wide operating range, especially under continuous-duty conditions.
High Internal Efficiency with Reduced Flow Loss
The smooth transition of the multi-arc screw profile shortens the contact line between rotors and reduces internal turbulence. This design minimizes rotor-induced flow losses and allows for internal compression during the air handling process. As a result, the blower achieves higher internal efficiency and more stable pressure build-up compared with conventional designs.
Low Specific Power and Outstanding Energy-Saving Performance
With reduced internal losses and optimized internal compression, the blower operates with lower specific power consumption. Compared with conventional Roots blowers, energy savings of approximately 15% to 50% can be achieved, depending on operating conditions. This translates directly into lower operating costs and improved long-term energy efficiency for users.
Superior Performance of the 5:7 Rotor Profile
The 5:7 rotor profile further enhances performance by reducing backflow and lowering specific power consumption. This advanced configuration delivers higher overall efficiency and more pronounced energy-saving benefits, making it especially suitable for applications with strict efficiency and energy consumption requirements.
Pressure Range & Efficiency Analysis
Advanced internal compression technology delivers superior efficiency across a wider pressure range compared to traditional Roots blowers.
30-250
kPa Operating Range
50%
Max Energy Savings
85
dB(A) Noise Level
24/7
Continuous Operation
Pressure vs. Efficiency Comparison
Energy consumption comparison at different pressure levels
Optimal Range
60-150 kPa delivers maximum energy savings with SDSB technology
Roots Limitation
Performance degrades rapidly above 80 kPa due to internal backflow
Extended Range
SDSB maintains efficiency up to 250 kPa with stable operation
Ready to reduce your energy costs?
Engineering Excellence in Every Detail
Discover the innovative technologies that make KGV Screw Blowers the preferred choice for demanding industrial applications worldwide.
Ultra-High Precision Manufacturing
Industry-Leading Machining Accuracy
Our screw rotor manufacturing achieves exceptional precision through advanced CNC machining centers and precision measurement systems, ensuring optimal performance and longevity.
- Mazak & Matsuura precision machining centers
- Hexagon coordinate measuring systems
- Tolerance control within ±0.005mm
- Extended equipment lifespan up to 20+ years
Proven Performance Across Industries
From wastewater treatment to pharmaceutical manufacturing, SDSB Screw Blowers deliver reliable, energy-efficient solutions tailored to your industry's specific requirements.
Wastewater Treatment
- Activated sludge aeration systems
- Sand filter backwashing operations
- Membrane bioreactor (MBR) aeration
- Oxidation ditch circulation
Key Benefits
Continuous 24/7 operation with 30% energy savings. Oil-free design prevents contamination of biological treatment processes.
Thermal Power Generation
- Flue gas desulfurization oxidation
- Limestone slurry preparation
- Gypsum dewatering systems
- Forced oxidation processes
Key Benefits
High-pressure capability for demanding FGD applications. Corrosion-resistant materials handle acidic environments.
Cement & Lime Production
- Pneumatic dust conveying systems
- Kiln combustion air supply
- Bag filter cleaning aeration
- Silo fluidization processes
Key Benefits
Heavy-duty construction for abrasive environments. Variable flow control for optimal process efficiency.
Pharmaceutical & Chemical
- Clean room pressurization
- Fermentation tank aeration
- Solvent vapor recovery
- Special gas compression
Key Benefits
100% oil-free operation ensures product purity. FDA-compliant materials for pharmaceutical applications.
Textile Manufacturing
- Melt blowing nonwoven production
- Fiber texturing processes
- Pneumatic fiber transport
- Yarn processing aeration
Key Benefits
Stable air pressure for consistent fiber quality. Low noise operation improves working conditions.
Printing & Packaging
- Paper feeding and separation
- Vacuum paper transport
- Ink mist extraction
- Packaging material handling
Key Benefits
Precise flow control for accurate material handling. Quiet operation suitable for office environments.
Find Your Industry Solution
Our application engineers will help you select the optimal SDSB Screw Blower configuration for your specific industry requirements and operating conditions.
Lower Total Cost of Ownership
Comprehensive 5-year cost analysis demonstrates significant operational savings and faster ROI with SDSB Screw Blowers compared to traditional roots blowers.
Traditional Roots Blower
SDSB Screw Blower
Real Customer Success Stories
A major municipal wastewater treatment facility in Germany replaced three traditional rotary blowers with two SDSB screw blowers for their aeration system upgrade.
A chemical processing facility in Texas upgraded their pneumatic conveying system with SDSB screw blowers, achieving significant cost reductions and improved reliability.
A cement plant in Southeast Asia replaced their pneumatic conveying blowers with SDSB systems, eliminating noise complaints and reducing operational costs.
Calculate Your Potential Savings
Complete Performance Data
Comprehensive technical specifications for all SDSB Screw Blower series, covering flow rates, pressure ranges, and power requirements for precise equipment selection.
KG100 Series
Flow Range: 239-523 m³/h | Power Range: 4-22 kW
| Speed Level | Discharge Pressure (Bar) | Suction Pressure (Bar) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 0.3 | 0.4 | 0.5 | 0.6 | 0.7 | 0.8 | 0.9 | 1.0 | 1.1 | 1.2 | ||
| 1 | Qs Flow (m³/h) | 258 | 253 | 249 | 248 | 246 | 244 | 243 | 241 | 240 | 239 |
| Motor Power Po (kW) | 4 | 5.5 | 7.5 | 7.5 | 7.5 | 7.5 | 11 | 11 | 11 | 11 | |
| 2 | Qs Flow (m³/h) | 292 | 287 | 283 | 281 | 278 | 276 | 275 | 273 | 272 | 271 |
| Motor Power Po (kW) | 4 | 5.5 | 7.5 | 7.5 | 11 | 11 | 11 | 11 | 11 | 15 | |
| 3 | Qs Flow (m³/h) | 341 | 335 | 330 | 328 | 325 | 322 | 321 | 319 | 319 | 316 |
| Motor Power Po (kW) | 5.5 | 7.5 | 7.5 | 11 | 11 | 11 | 11 | 15 | 15 | 15 | |
| 4 | Qs Flow (m³/h) | 379 | 372 | 366 | 364 | 361 | 358 | 357 | 354 | 352 | 351 |
| Motor Power Po (kW) | 5.5 | 7.5 | 7.5 | 11 | 11 | 11 | 15 | 15 | 15 | 15 | |
| 5 | Qs Flow (m³/h) | 417 | 410 | 404 | 401 | 398 | 394 | 393 | 390 | 388 | 387 |
| Motor Power Po (kW) | 5.5 | 7.5 | 11 | 11 | 11 | 15 | 15 | 15 | 15 | 18.5 | |
| 6 | Qs Flow (m³/h) | 465 | 457 | 450 | 447 | 443 | 440 | 438 | 435 | 433 | 431 |
| Motor Power Po (kW) | 7.5 | 7.5 | 11 | 11 | 15 | 15 | 15 | 15 | 18.5 | 18.5 | |
| 7 | Qs Flow (m³/h) | 523 | 514 | 506 | 503 | 498 | 494 | 492 | 489 | 486 | 484 |
| Motor Power Po (kW) | 7.5 | 11 | 11 | 15 | 15 | 15 | 18.5 | 18.5 | 18.5 | 22 | |