1/2 Ton Weisner Chain Block Hoist. Hand Chain Hoists › 1/2 Ton Weisner Chain Block Hoist. Back to List. Was: $154.00. Now: $101.20. UPC: WCH12.High quality CE 0.5 ton 2 ton Manual lifting Chain hoist Chain Block. Grade 80 high strength load chain, High safety factor, long service life. Steady rotation, high efficiency, light hand pulling force. Approved by CE, GS certificate. Overload protection optioned.Open frame design for self-cleaning, quick load sheave inspection and easy hoist maintece Lightweight high strength grade 100 alloy steel load chain, except .5t & 1t CategoriesCB-1 chain blocks and manual chain hoist CB-1 and CB11 chain block is a type of manual chain hoist with the features of easy operation and carrying which is widely used in factories, mines, construction sites, agricultural production, and wharf, docks, and warehouses, etc., for simple material handling.