印度采购需求：金属探测器、检重秤系统、X射线检测系统、光学分选系统、传送带金属探测器、重力落下式金属探测器

We are interested in acquiring Metal Detector Machines with specific dimensions. We need one machine with an aperture size suitable for heavy sheets up to 300 kg and another for larger sheets up to 1500 kg. Both machines should come with a motorized conveyor system on the loading and discharge sides, and we prefer analog types for straightforward operation. Additionally, please provide details on the minimum and maximum conveyor or roller table speeds, as we may require slower speeds for the larger machine. Also, clarify the smallest metal particle size detectable for ferrous, non-ferrous, and stainless steel materials. Looking forward to your prompt response.