Since winding has an endurance timer of 120 secs. you need a team, good food and a method to synchronise team members. Endurance food with a 21 boost will allow 2 people to pull every 15 seconds. 36 end should allow solo grinding.
10 Silver Powder or 10 Aluminium Powder is produced from 1 metal every 15 seconds and can be used as a timer if your food permits.
Built: in a compound, uses 11×19 cells
Skill/Tech required: Pyrotechnic Mortar Construction