... well drilling rig Hot sale HF200 spindle-type drilling machine for waterwell and core drilling Specially recommended ... of saving cost ,compact,mobile ,lightweight Main machine technical parameterDrilling depth200mDrlling diameter300mmEnd diameter75mmDrilling pipe diameter50mmDrilling angle90 ... ,128,287,557r/minSpindle stroke 450mmHoistMax.single line hoisting capacity2400kgReel lifting speed 17,35,75, ...