Semi-hermetic Screw Compressor MBP​

Introduction & Scenario-Specific Solutions

Core Value of MBP Compressors

The Semi-Hermetic Screw Compressor MBP (SLG series) fills the gap between fully hermetic and open compressors, offering a balanced solution for medium-power cooling needs (35-220 HP). It addresses industry pain points like high maintenance costs, refrigerant leaks, and inefficient energy use—making it a reliable choice for commercial and industrial cooling systems.

Scenario 1: Industrial Chillers for Manufacturing

In plastic molding, metal processing, or chemical production lines, 24/7 operation demands minimal downtime. The SLG series’ removable housing allows technicians to access internal components (screws, motor windings) in 30 minutes or less (vs. 2+ hours for sealed hermetic units), reducing production losses caused by compressor failures. Its stable power output also prevents machinery overheating, ensuring consistent product quality.

Scenario 2: Marine Air Conditioning & Refrigeration

Maritime environments pose unique challenges: high humidity, salt corrosion, and vibration. The SLG series’ enhanced sealing (superior to open compressors) prevents refrigerant leaks, while its adaptive energy regulation (step/stepless) maintains optimal cooling for cargo—whether preserving seafood at -18°C or pharmaceuticals at 2-8°C during transoceanic voyages.

Scenario 3: Industrial Ice Making Equipment

For high-volume ice production (e.g., concrete cooling, food processing), the SLG series adjusts cooling capacity between 40%-100% based on demand. This flexibility cuts energy consumption by 18% compared to fixed-speed compressors, while its robust alloy steel components withstand continuous operation (up to 8,000 hours/year) without wear.

Design & Material Innovations

Removable Housing for Maintenance Efficiency

Unlike fully hermetic compressors (which require complete replacement if internal parts fail), the SLG series features a detachable cast iron housing. This design eliminates the need for costly unit replacements, reducing long-term maintenance expenses by 50% over the compressor’s 8+ year lifespan.

Enhanced Sealing to Prevent Leaks

The compressor uses rubber-coated metal gaskets and precision-machined flange connections, achieving an annual leak rate of ≤0.3% (far below the industry average of 1.2% for open compressors). This not only reduces refrigerant waste but also complies with global environmental standards (e.g., EU F-Gas Regulation).

High-Strength Materials for Durability

• Compressor Screws: Heat-treated alloy steel (HRC 58-62) resists wear from continuous rotation.

• Motor Windings: Class H insulation tolerates temperatures up to 155°C, preventing burnout in high-load conditions.

• Casing: Corrosion-resistant cast iron with a zinc-plated finish, suitable for harsh industrial or marine environments.

Detailed Technical Specifications

Additional Critical Specifications

• Power Supply: 380-420V/50Hz/3ph (for 50Hz regions); 440-480V/60Hz/3ph (for 60Hz regions).

• Energy Regulation: 40%, 70%, 100% step regulation; optional stepless regulation (100%-40%).

• Protection Module: INT 69 RCY (includes overcurrent, overheating, and phase-loss protection).

• Max Discharge Temperature: 110°C (compatible with R404A/R507 refrigerants).

Technical Support & After-Sales Services

Pre-Installation Consulting & Sizing

Our engineering team uses load-calculation software to match the correct SLG model to your system—considering factors like cooling capacity (kW), ambient temperature, and refrigerant type. This ensures optimal performance and avoids over-sizing (which wastes energy) or under-sizing (which causes compressor strain).

On-Site Installation & Training

Certified technicians provide on-site guidance for wiring, piping, and refrigerant charging, adhering to safety standards (e.g., IEC 60335-2-34 for refrigeration equipment). We also offer 2-hour training sessions for your maintenance team to teach basic troubleshooting and routine checks.

Warranty & Spare Parts Supply

• Warranty: 18 months on core components (motor, screws, seals); optional 2-year extension.

• Spare Parts: Global warehouse network (USA, Germany, China) ensures delivery within 3-5 business days for critical parts (e.g., gaskets, bearings).

24/7 Troubleshooting Support

A dedicated technical hotline (available in English, Spanish, and Mandarin) provides real-time solutions for issues like abnormal current, leaks, or temperature fluctuations. For urgent cases, we dispatch local service partners within 24 hours.

Production