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Product Insights
Oil-Free TCO: Filter Savings vs Higher Machine Price
2026-09-04
Oil-free compressors carry a higher upfront capital cost than oil-injected equivalents, but eliminate ongoing oil filter, separator, and lubricant replacement costs.
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Oil-Free TCO: Filter Savings vs Higher Machine Price
2026-09-03
A 10-year total cost of ownership comparison for industrial buyers evaluating oil-free vs oil-injected screw compressors at Class 0 air purity requirements.
Deman PM VSD oil-free screw blowe...
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Carbon Accounting: How to Convert Compressor kWh into Verifiable CO₂ Data
2026-08-28
Core formula: Annual CO₂ (kg) = Compressor kWh consumed × Regional grid emission factor (kg CO₂/kWh).
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ISO 8573-1 Class 0: What the Test Report Really Proves
2026-08-27
A practical engineering read of what an ISO 8573-1:2010 Class 0 test report actually certifies — the eight key fields, four certification routes and five marketing-inflation traps.
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What Does a 10-Year Air End Warranty Actually Cover?
2026-08-20
A 10-year air end warranty covers the air end module — the rotor housing, the rotors, the bearings, and the internal lubrication system — not the entire compressor system.
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Every Extra Bar Costs 7%: Pressure Economics Explained
2026-08-21
The 7% per bar rule comes from compression thermodynamics — every 1 bar increase above the application minimum consumes ~7% more specific power.
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What Is Specific Power? kW per m3/min Benchmark Table
2026-08-14
Specific power air compressor ratings — measured in kW per m3/min — are the standard way to compare screw compressor energy efficiency across different sizes, pressures, and configura...
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IE3 vs IE4 vs IE5 Motors: What Buyers Actually Receive
2026-08-11
The IE3 vs IE4 vs IE5 motor efficiency class is the single biggest energy cost driver in a screw air compressor.
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How Altitude and Heat Derate Your Compressor's Output — Deman Engineering Correction Curves for 500-3000 m and 25-45 °C IntakeField-measured FAD correction factors for screw air compressors at 500-300
2026-08-07
A compressor rated at 10 m³/min at sea level does not deliver 10 m³/min at 2500 m and 40 °C intake.
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0.3 MPa Low-Pressure Compressors: Textile Mill Savings — LBV Series vs 7 bar Field-Measured Energy ReductionWhy a 0.3-0.45 MPa adjustable LBV screw compressor outperforms a 7 bar industrial compressor
2026-08-06
Most textile-mill compressed-air systems are sized for 7 bar because the historical default has been 7 bar.
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