Introduction

YD-22 Hydraulic Tamping Machine  adopts new material and technology, this type of machine is our upgrading product. Its basic structure and working principle reserves the original advantages, that is of double guide pillar frame and single cylinder lifting mode. Due to increasing the tine palm inserting depth and the guide pillar stroke stop means, it’s able to to operate on II type concrete sleeper and III type concrete sleeper, and on various concrete sleeper and rail track. Its main technical performance is better than the old type. It’s suitable for tamping operation on various rail and sleeper track after the overhaul and medium maintenance ballast cleaning operation, and also suitable for tamping operation on the new track ballast bed.  This machine has the features of high quality performance, reasonable structure, safe and reliable operating capability and high working efficiency, which can satisfy the requirement of ballast tamping operation.