... , can also be used alone, more efficiency then the single head.2. Screw drive, economical, cost-effective.3. ... minimum.Make the positioning more accuracy.4. Imported four-row ball bearing linear guides, self-lubricating block to make equal force ... size720mm*1140mm3StructureTable structureSection aluminumX,Y,Z structureX,Y ,Z ball screw4SpeedMax. traveling speed≥10000mm/minMax. working speed≥6000mm/ ...