... thrust: 400KN (about 40 tons) HGA-400 Hydraulic Rail Gap Adjuster for railway our company is a leading manufacturer specialized ... machine, railway ballast tamper, railway bolt wrench, rail bender , rail gap adjuster, cutting disc, grinding stone, and etc .Shandong China Coal ... 2008 ISO 9001:2008 international standards.HGA-400 Hydraulic Rail Gap Regulator is suitable for 43kg--75kg rails.The technical ...