Sheeba Engineering Co. Ltd. Manufactures Gravity Lock with Springs that is a part of dyeing machine . Sheeba Engineering Co. Ltd. Also offers products like Dyeing Machine Accessories, Perforated Triangular Spindles, Loading and Unloading Basket [Auto Doffing] etc. Gravity Lock with Springs is available also without lever arm for opening for automatic loading and unloading. The Gravity Lock with Springs gives the Spring pressure at half spring travel. The Gravity Lock with Springs gives a force of 180 N for 2.65 mm length and 250N for 3.0mm.