1. RUBBER WHEEL DESIGN , ANTI-WEAR , LONGLASTING USE , NO-SCRATCH FOR WORKING PIECE . 2. ADOPT FIXING NUTS OR SCREW ADJUSTMENT FOR ROLLSâS DISTANCE EASY AND PRECISE . 3. STABLE TORQUE , STABLE DRIVEN , AGIL SPEED CONTROL . 4. DELAY START , JOG , BRAKE , STEPLESS ADJUSTMENT , COMPATIABLE WITH AUTOMATIC WELDING SYSTEM . âPOWER SOURCE : DEPEND CUSTOEMRâS REQUIREMENT . âWORKING DIAMETER : AVAILABLE FOR SPECIAL MODIFICATION. âMAX. LOADING : AVAILABLE FOR SPECIAL MODIFICATION