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Picture	Titel	Update
	Y20ly rock drill Weight 18kg Air consumption 1.3m3/min (21.6L/s)Overall length 609mm Times of impact 30HZDiameter of cylinder 60mm Diamet
	YT29A air leg rock drill Type YT29 Air comsumption =60L/sWeigth 26.5kg Working water pressure 0.3MpaLength 659×248 ×205mm Air pipe inner dia F2
	B87C jack hammer Weight 39kg Length 686mm striking frequency 1200bpm Air consumption 55+/-5%m3/minair inlet size 3/4mmdrill shank size 1-
	RB777 jack hammer Weight 37kgLength 733mmRammer dia 57mmRammer stroke 189mmAir pressure 0.63MpaImpact frequency 18.3 HzAir consumption 34L
	YO18 air leg rock drill Weight 18kg Overall length 550mm Diameter of cylinder 58mm Piston stroke 45mm Inner diameter of air pipe 19mm Inner diam
	Y19A rock drill Weight 19kg Working pressure 0.4-0.5MPaOutside dimensions 600534106mm Frequency of impact 35 HZDiameter of cylinder65m
	YT24 air leg rock drill Weight 24kgOverall length 678mmDiameter of cylinder 70mmPiston stroke 70mmInner diameter of air pipe 19mmInner diameter
	Y12 hold held rock drill Weight 11kgFull length 458mmOperating air pressure 0.4-0.63MpaInner diameter of air pipe 13mmDiameter of drill bit 20-30

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