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Stage 1: Compresses intake air to an intermediate pressure, with heat absorbed by cooling lubricant.
Stage 2: Further compresses pre-cooled air to the target pressure, aided by atomized cooling injection for near-isothermal compression.
Result: Achieves up to 15% energy savings vs single-stage systems.
Precision Engineering: Rotors undergo 20-step precision machining for flawless profile accuracy and reliability.
1. High-Efficiency Energy-Saving Two-Stage Compression UnitDarko AE two-stage (series or parallel) screw compression unit redefines efficiency by splitting compression into two optimized phases:
Stage 1: Compresses intake air to an intermediate pressure, with heat absorbed by cooling lubricant.
Stage 2: Further compresses pre-cooled air to the target pressure, aided by atomized cooling injection for near-isothermal compression.
Result: Achieves up to 15% energy savings vs single-stage systems.
Precision Engineering: Rotors undergo 20-step precision machining for flawless profile accuracy and reliability.
2. Reduced Bearing Load for Extended Lifespan
Two-stage compression lowers the compression ratio, significantly reducing bearing stress. Paired with heavy-duty SKF bearings, our design ensures:
✔ 30% longer service life vs conventional compressors
✔ Stable operation under extreme loads
✔ Minimal maintenance downtime
3. Interstage Cooling InnovationDarko AE’s patented interstage cooling system boosts efficiency through:
Atomized Cooling Spray: Instantly absorbs heat after Stage 1 compression, eliminating the need for bulky intercoolers.
Energy Recovery: Pre-cools air before Stage 2, slashing compression power demand by 18%.
Key Advantage: Compact design with no performance trade-offs.
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