ETA MELCO Engineering Co. Pvt. Ltd. Supplies Compact Machine Room Passenger Elevator. ETA MELCO Engineering Co. Pvt. Ltd. Offers escalators. Compact Machine Room Passenger Elevator is provided with PM gearless traction machine. Compact Machine Room Passenger Elevator is used for high rise building, medium rise building, hotel, commercial building, residential building, station, hospital, private residence. The control system of this elevator allows for an increased number of cars [up to 8 cars]. Its model name is NexWay-S Series IP/AP.