1. Mass: Maximum reduction of 15% (0.96 kg: previous model 1.13 kg) 2. Overall length: shortened by up to 15 mm (240 mm: previous model 255 mm) 3. To improve durability, install lubrication retainers on the inner and outer surfaces of the cylinder to maintain its lubricity. 4. The adjustment screw improves stroke accuracy/repetitive positioning accuracy.