Our company is the leading bus door system manufacturer in Asiaand owns more than 20 patents in the automatic door industry , we can provide the optimum door system for any vehicles. NR350 Pneumatic Double Rotary Bus Door System Design Feature: Instead of using traditional overhead base plate operator plus additional pneumatic cylinder locking, Ivy adds the lifting mechanism into the baseplate operator to lock the door panel. By doing that, Ivyâ s double rotary door system is safer and easier for the maintenance and installations Main Parameter: Maximum torque in locked position ( @ 90 psi) 122 ft-lbs Recommended door shaft rotation 90 degree Operating temperature -30° C to 80° C Envelope size 5.51â w x 12.50â d x 4.53â h Operating pressure 90-125 psi Locking mechanism Local wedge lock Door closing time 3-5 seconds Door opening time 3-5 seconds Please contact with me if you are interested in our products. Kate Liu( Export Sales) Ivy Machinery ( Nanjing) Co., Ltd Address: No.2, Dahua Road, ZhujiangIndustrial Park, Pukou, Nanjing, China Tel: ( 86) 25 58257300 Fax: ( 86) 25 58257355 Email: ivydoors@ 163.com