14x30 Manual ID/OD - Parker Majestic14x30 MANUAL. ID/OD CYLINDRICAL GRINDER. Our Liberty CNC cylindrical grinder is an established, proven grinding system. For parts up to 30”, this durable machine provides the stability and repeatability needed to produce your high precision components. REQUEST QUOTE Review and Select Your Optionshartex machine in rhel 1520 od grinding manual,Cylindrical Grinders | Vertical, Turning & Manual Grinding MachinesEcotech Machinery, Inc. was established in 1983 as the sales and support arm of the principal international machine tool builder, Shanghai Machine Tool Works (SMTW). We produce machine tools for the precision machining of metal parts including, Grinding Machines, Vertical Rotary Grinders Turning Machines, CNC.