High performance lithium battery
Brushless explosion-proof motor
Built-in high precision vacuum gauge

Filter oil mist, less pollution
Strong and durable
Prevent oil shortage, refueling in time
Suitable for occasions without ac power

| Item No. | ST-C4BM | ST-C4S |
| Flow Rate | 4.5 CFM | 4.5 CFM |
| 127 L/MIN | 127 L/MIN | |
| Pole No. | Dual Stages | Single Stage |
| Ultimate Vac. | 2x10-1Pa | 2Pa |
| Power | 1/3 HP | 1/3 HP |
| Inlet Port | 1/4" & 3/8" Flare | 1/4" & 3/8" Flare |
| Oil Capacity | 320 ml | 380 ml |
| Dimension | 364x118x279mm | 364x118x279mm |
| Weight | 6 kgs | 5.5 kgs |
| Li-ion | 18V | |