1) Single-end design with bottle infeed from one end of the machine and discharge from the same end, minimizing the risk of bottle contamination. 

2) Motors with easily adjustable frequency control drive from SEW.

3) Heating system：heating by means of steam. Steam pass through the heat coil while the caustic solution going through the external pipe for efficient heat exchange,  making the best of energy sources

4) Bottle washing process pre-spraying, three(XP-30C & XP-30D) to four (XP-30E) times caustic soaking and hot water spraying to guarantee a thorough bottle cleaning. Baths are separated each other to reduce risk of cross-contamination. Hydrogen exhausting unit outer attached to the caustic soaking bath I.

5) Long section with ventilation device (exhaust fan) downstream of sterile water spraying carry out bottle emptying before bottle discharge to reduce residual water quantity in bottles.

6) Unique groove profile track to make sure the spraying position in each bottle carriers, thus fully clean the bottles.

7) Unique and rigid design of the bottle carriers made of high-grade steel thus deformation unlikely; plastic bottle carrier is available as option.

8) The inlet of caustic spraying pipes in Caustic tank I is equipped with filters. Application of filters with different meshes prevents spray nozzles from being clogged. The filters on the caustic spraying section I are self-cleaned. Transverse and axial oriented fixture of spray nozzles easy for dismantlement and reinstallation.

9) PLC Frequency controlled main drive. Man-machine interfaced operation panel with Chinese text display and color graphs of various forms. Such panel with color screen displaying various fault alerts, operation status and bottle transfer speed.

10) Multi-function protection devise switch off the main drive when the following malfunctions occur：

    Specified temperature in the sub-merged baths fail to be reached

    Main drive overloaded, bottle blocking at infeed and discharge, bottle tumble；

    Bottle jam-up at discharge conveyor；

11)Rotating bottle infeed device with synchronization transmission chain, stable running, stronger chain makes longer life time. Catch and push design bottle discharge, more advance mechanical design and reliable structure. Auto returning devices installed both at machine infeed and discharge.

12)There is water level meters in each tanks for automatic level adjusting. The media temperature in the preheat spraying section, hot water spraying section and 3 caustic submerged baths are measured by Pt100 temperature transducers and the signals sent therefrom are then collected by ADPT module which is interfaced to the man-machine operation panel. The measured temperature is displayed on the operation panel screen. The temperature value of the hot water and hot caustic in the abovementioned baths can be set and PID parameters can be modified on the operation panel to achieve precise control.

13)Synchronization transmission spraying system, all the spraying pipes are made with polished stainless steel.

14)Stainless steel bottle conveyor at the both ends of the machine; the bottle infeed conveyor is frequency controlled, keep this conveyor same speed as the main drive to ensure stable bottle infeed and discharge, less fallen bottles and lower noise.

15)Automatic online caustic concentration measuring devise with display for sub-merged bath I and II,II.