Built-in high precision DIGITAL GAUGE
DC brushless motor
integrated cylinder

Filter oil mist, less pollution
Strong and durable
Prevent oil shortage, refueling in time
Effectively protect machine performance

| Item No. | ST-4BM | ST-4S |
| Flow Rate | 4.5 CFM | 4.5 CFM |
| 127 L/MIN | 127 L/MIN | |
| Pole No. | Dual Stages | Single Stage |
| Ultimate Vac. | 15 microns | 60 microns |
| Power | 1/4 HP | 1/4 HP |
| Inlet Port | 1/4" & 3/8" flare | 1/4" & 3/8" flare |
| Oil Capacity | 720 ml | 890 ml |
| Dimension | 290x128x276mm | 290x128x276mm |
| Weight | 5.3 kgs | 4.7 kgs |
| Voltage | 220V 50/60Hz | |
| Unit | KPa、mBar、InHg、mmHg | |