The EXPERT-TÜNKERS Dual-Box-Lifter is a low-profile rollerbed lifter with integrated spring suspension system. The low-profile and overall compact design leads to minimum space requirements and has no interfering edges for a perfect 360° robot accessibility. Additionally the Dual-Box-Lifter has an integrated energy storage system operated by two spiral springs. Their stored potential energy reduces the required energy by up to 30% per full cycle.