The TRILO S4 vacuum sweeper is our S3`s big brother. The S4 also is a compact and economical vacuum sweeper with large, air filled tyres for low soil pressure. The difference is in the larger 4 m3 container and a bigger fan for more suction power. The S4 is equipped with a Ø 850 mm, 4 blade fan which is placed in a TRILO centrifugal pump with replaceable lining for extra-long life. This larger fan requires some more horsepower than the S3: 45 HP (33 kW) minimum. A Walterscheid PTO shaft with wide angle and overrun clutch provide power transmission. Gauge wheels, placed in the heart of the suction hood which is placed in towing direction, ensure that the axle follows the contours of the soil perfectly. This vacuum sweeper can also be equipped with a braked axle suitable for fast traffic.