Single-stage oil-free piston compressors are designed for installation on electrically driven buses and trolleybuses. Suitable for operation in ambient temperatures from -40 to +40 degrees Celsius. Compressors are adapted to autonomous operation. Starting occurs from compressor block, at any stage with 380V three-phase AC current supply. The compressor body is made of aluminum alloy.
| Model | Cylinders | Liters per minute | Max pressure bar | Motor Power kW | Voltage V | Rotation Speed rpm | Number of cylinders | Weight kg | Dimensions |
| SB4-LBB50.321 | 2 | 460 | 9 | 4.0 | 380/50 | 950 | 2 | 75 | 885x536x460 |
| SB4-LBB50.T203 | 2 | 460 | 9 | 4.0 | 380/50 | 950 | 2 | 76 | 885x536x460 |
| SB4-LBB50.3(321) | 2 | 460 | 9 | 4.0 | 380/50 | 950 | 2 | 75 | 885x536x460 |
| SB4-LBB50.T215 | 2 | 460 | 9 | 4.0 | 380/50 | 950 | 2 | 76 | 885x536x460 |
| SB4-LBB50.322 | 2 | 460 | 9 | 4.0 | 380/50 | 950 | 2 | 75 | 885x536x460 |
| SB4-LBB50.T251 | 2 | 460 | 9 | 4.0 | 380/50 | 950 | 2 | 76 | 885x536x460 |
| SB4-LBB50.E | 2 | 460 | 9 | 4.0 | 380/50 | 950 | 2 | 75 | 885x536x460 |
| SB4-LBB50.ТT132S4 | 2 | 460 | 9 | 4.0 | 380/50 | 950 | 2 | 76 | 885x536x460 |
Compressors