NR300 Pneumatic Automatic Door Operator fortourandintercitycoaches.(consist of pump asm) ThemainparametersofNR300Pneumatic Automatic Door Operator: Maximumtorqueinlockedposition(@90psi) 122ft-lbs Recommendeddoorshaftrotation 90degree Operatingtemperature -30°Cto80°C Envelopesize 5.51”wx12.50”dx4.53”h Operatingpressure 90-125psi Lockingmechanism Localwedgelock Doorclosingtime 3-5seconds Dooropeningtime 3-5seconds 1.Mechanism:Auto-operation;Emergencyrelease;Sensitiveedge. 2.WehavepastISO9001-2000certificationsandISO/TS16949:2000certifications 3. Providetheoptimumdoorsystemforanyvehicle(buses)