Hydraulic cylinder for hayrake Rake hydraulic cylinder Hydraulic cylinders can be used for tractors,Website:://.thshydraulic.com, harvesters, tractor loaders and other agriculture machineries.These cylinders have single stage and multi stage.Following are materials, customer could provide us drawing, sample or main parameters, then our engineer team can design it for you.Material :Piston: high quality nodular iron or 45# steelTube: 20# - 45# steelPiston rod: chrome plated 45# steel or 40GrCylinder cap: high quality nodular iron or 45# steelCylinder base: 20# - 35# steelSeal ring: famous Chinese brand or imported oversea brandWhy choose Tonghesheng 1. 10 years manufacturing experiences. 2. Quick and safe delivery. 3. Professional design