Baldor A Series

A Series Fixed Speed Screw Air Compressor

Economic A series with belt-drive and direct-drive for your choosing. And a whole series of small details that will help to be familiar with screw air compressors.

  • Y-delta startup.
  • Schneider electronic components, IP54 TEFC motor.
  • Fixed speed asynchronous motor, coupling direct/belt driven.
  • IOT system for real-time monitoring of compressor system operation.

Description

1.Twin-screw
Optimized design of airend allows enlarging capacity of compressor at same energy consumption, and it enables screw air compressor reduce your energy expense.

2.Computer control system
Display real time pressure and temperature and maintenance notice. Historical high temperature and high pressure is available to review.

3.Protection system

  • Motor overload protection, stop
  • High discharge temperature protection, stop
  • Over-pressure protection, stop
  • Phase fault protection, phase loss protection, stop
  • Lubrication display
  • Air oil separator block alarm
  • Oil filter block alarm
  • Air filter block alarm
  • Stop alarm

4.Display system

  • Discharge pressure
  • Oil pressure
  • Discharge temperature
  • Accumulated running time
  • Motor overload
  • Running condition
  • Stop

5.Air/oil separator
Oil flooded screw air compressor needs oil to absorb heat and noise, lubricate and seal air-end. It leads compressed air to be mixed with oil and needs air oil separator to reduce some oil. We use internal air oil separator, oil content less than 2 ppm which maximally reduce oil loss.

6. Cooler
Cooler is enlarged by 30% and prolong cleaning period.

7.Admission valve
Admission valve special design prevent reflowing. According to history air consumption, pressure signal is sent to control system and adjust air absorption by the way of controlling valve’s opening angle. It makes air delivery more efficient.

8.Minimum pressure valve
The non-metal double vertebral body structure design is sensitive and close quickly to avoid air back-flowing and pressure loss.

9.Motor
Use closed air cooled design, IP54, insulation grade F, service factor 1.15, SKF bearing

Specification

Models BD-10A BD-15A BD-20A BD-30A BD-40A BD-50A BD-60A BD-75A BD-100A BD-125A BD-150A BD-175A BD-200A BD-250A BD-300A BD-350A
Power(kw) 7.5 11 15 22 30 37 45 55 75 90 110 132 150 165 220 250
Pressure/FAD(m³/min) 7bar 1.4 1.8 2.5 3.8 5.2 6.5 8.0 10.5 14.1 16.0 20.5 24.1 28.3 32.0 38.5 43.8
8bar 1.2 1.6 2.3 3.7 5.0 6.3 7.5 9.8 12.8 15.0 19.0 22.9 27.0 30.5 35.8 41.4
10bar 1.0 1.3 2.0 3.1 4.3 5.5 7.0 8.6 11.6 13.6 17.2 20.5 24.5 28.0 32.2 37.8
12.5bar 0.8 1.0 1.7 2.7 3.8 4.9 6.0 7.6 10.0 12.2  2 14.8 16.8 20.5 24.0 28.5 33.0
15bar 0.64 0.80 1.36 2.16 3.04 3.92 4.80 6.08
Ambient temp -5~+45℃
Cooling Way air cooling or water cooling
Discharge temp air cooling(ambient temperature±10℃) water cooling(<40℃)
Electricity 220v/380v/415v/460v/50hz/60hz
Starting Method Y-△Starter
Drive way belt drive belt drive belt drive direct drive direct drive direct drive direct drive direct drive direct drive direct drive direct drive direct drive direct drive direct drive direct drive direct drive
Lubricant (Liter) 6 9 9 18 30 30 50 50 65 65 90 90 112 112 120 120
Noise dB(A) 62±2 64±2 64±2 64±2 65±2 65±2 67±2 67±2 68±2 68±2 70±2 70±2 72±2 73±2 73±2 75±2
Length (mm) 960 1100 1100 1250 1500 1500 1750 1750 1750 1750 2200 2200 3190 3190 3384 3384
Width (mm) 580 710 710 950 1000 1000 1150 1150 1150 1150 1500 1500 1890 1890 1894 1894
Height (mm) 770 1100 1100 1120 1350 1350 1500 1500 1500 1500 1720 1720 1740 1740 1900 1900
Weight (kg) 178 286 327 500 680 683 1038 1038 1200 1500 2000 2500 3900 4200 4600 5000
Outlet Pipe Diameter (inch) ½” 1″ 1″ 1¼” 1½” 1½” 2″ 2″ 2″ 2″ DN65 DN65 DN80 DN80 DN100 DN100

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