cheap time clock looks the way forward but thank youThis zero-to-60 seconds timer is a lot cheaper than £103.50 :
The main time switch that I linked to previously could trigger this one, which then will run the auger motor for the selected short "ON" time.ââ DC 12V NE555 0~60 Seconds Delay Timer Switch Adjustable Time Relay Module ââ | eBay
Module based on: NE555 chip. Main Chip (NE555) Characteristics This is a 12V Conduction delay relay module. Delay module: delay connect module. 10A, DC 0~30V / max. The output can be connected to AC 250V 10A or DC 30V 10A load;.www.ebay.co.uk