ND-1 Portable Rail Tamper ND-1 portable tamper is a special machine for ballast tamping on railway lines and turmouts. Choose high-vibration, high-power gasoline engine as power, with high output power and stable. performance. The air compression hammer impact pick is used to impact the ballat. The impact force is large and the tamping effect is good. The whole machin is smal in size, ight. in. weight, and convenient. to go up and down, which can ffectively guarantee driving safety during operation. Specification Model ND-1 Type Rail Tamper Material Stainless Steel Dimensions (L x W x H) (mm) 840*470*350 mm Engine Two- stroke petrol engine,1.6kW Rated RPM 4400 r.p.m Impact energy 30~40 J Impact frequency 22 Hz Fuel tank volume 0.95 L Weight 25 kg