Sliding Doors SDP SDPO SDM20 SDM25 SDM30 SDM35 SDM40 Door Model SDP SDPO SDM20 SDM25 SDM30 SDM35 SDM40 Working temperature Down to 0°C Down to 0°C Down to -20°C Down to -25°C Down to -30°C Down to -35°C Down to -40°C Blade thickness (mm) 68 68 92 121 121 121 151 Heating cable in door blade - - ⦿ ⦿ ⦿ ⦿⦿ ⦿⦿ Heating cable in door frame - - - - ⦿ ⦿ ⦿ Standard threshold X1, X3 X1, X3 X1, X3 X1, X3 X1, X4 X1, X4 X1, X4 Automatic kit Available Available Available Available Available Available Available Meat rail - ⦿ - - - - - Optional double blade ⦿ - ⦿ ⦿ - - - Wall thickness (mm) 60 - 80 60 - 80 80 - 120 100 - 120 100 - 160 120 - 200 120 - 200 Maximum width (mm) 2500 (5000) 2500 2500 (5000) 2500 (5000) 2500 2500 2500 Maximum height (mm) 3500 3500 3500 3500 3500 3500 3500