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Atlas Copco TC-52P-N
Product Introduction:
The TC52P-N is the VSD premium variant of the TC52 frame without an integrated air dryer. The “N” suffix confirms no dryer is included. This model is designed for facilities that already have a central dryer system or require a specific dryer type (refrigerated, desiccant, membrane) to be selected and installed separately. The PM variable speed drive provides full load modulation from 100% down to 25%.
Detailed content
Technical Specifications:
| Parameter | Value |
|---|---|
| Model | TC-52P-N |
| Compressor Type | Oil-injected rotary screw, VSD |
| Drive Type | Permanent Magnet (PM) Variable Speed Drive |
| Free Air Delivery (FAD) | 42.4 m³/min (1,500 CFM) at 7 bar (100% speed) |
| Turndown Ratio | 100% to 25% |
| Maximum Working Pressure | 10 bar (1,000 kPa / 145 psi) — standard; up to 13 bar optional |
| Rated Motor Power | 55 kW (75 hp) — IE4 |
| Motor Efficiency Class | IE4 (Super Premium Efficiency) |
| Voltage / Frequency / Phase | 400V / 50Hz / 3-phase (Code 81) |
| Cooling Method | Air-cooled |
| Sound Power Level | 69 dB(A) at 75% load |
| Controller | Elektronikon Mk5 with VSD |
| Dimensions (L×W×H) | Approx. 1,800 × 1,100 × 1,400 mm |
| Weight (Dry) | Approx. 1,050 kg |
Material Composition:
- Rotor Housing: Cast iron GG25
- Rotors: Atomized alloy steel, 50 HRC
- PM Motor: Neodymium permanent magnets, IE4 rated
- Oil Separator: Glass fiber coalescing media
- Cooler: Aluminum plate-fin
Structural Features:
- Identical compressor end to TC52P-M but without dryer vessels
- Smaller overall footprint (no dryer towers)
- VSD inverter integrated in canopy
- Elektronikon Mk5 controller with demand-based speed control
Working Principle:
PM motor varies speed to maintain setpoint pressure. At partial load, the compressor runs at reduced speed, consuming significantly less power. The affinity laws dictate that a 50% speed reduction yields approximately 87.5% power reduction (0.5³ = 0.125 of full-load power).
Key Advantages:
- 35% energy savings vs. fixed-speed alternative
- Compact footprint — no dryer occupies space
- Flexibility to pair with any dryer type (refrigerated, desiccant, membrane)
- Lower initial cost than TC52P-M (no dryer included)
Applicable Industries:
Facilities with centralized compressed air treatment, manufacturing, printing, textiles, general industry.
Installation Requirements:
- Indoor, 1.5 m clearance minimum
- Ambient: 0°C to +45°C
- Floor load: 1,200 kg
- Electrical: 400V/50Hz/3-phase, 100A breaker
- Must install downstream dryer — minimum 3 m straight pipe between compressor and dryer
Usage Notes:
- Oil change: 8,000 hours or 2 years
- Air filter: every 4,000 hours
- Oil separator: every 8,000 hours
- Without a dryer, discharge air will contain moisture — install refrigerated dryer (dew point +3°C) or desiccant dryer as required by application
