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YD-22 hydraulic tamping machine is a kind of professional machinery used for railway line ballast tamping maintenance except for turnouts. It can be operated with train inervail time, without closing sections. It is equipped with three power modes. They are petrol, diesel and electric.

Engine types: Honda GX390 petrol engine or SF 190 diesel engine or electic engine.

● It is siutable for the tamping operation in the new constuction of ordinary railway lines and the large-scaie or medium-scale railway line maintenance

● It can complete the tamping operation of various types of concret seepers and wooden sleepers

● Equipped with automatic rail clamping device

● Equppped wih the f-tack walking frame, the machine can be removed off at any place and any time