Roto Hammer Product Catalog Although the basic purpose of all chain wheels is the same - ground level control of overhead valves - operating conditions can vary widely. Specifiers must consider such matters as accessibility, corrosion factors, frequency of use, and for fail-safe reasons the possible need for an impact operator. Due to these operational variations, Roto Hammer Industries offers the widest range of chain wheels available today. For a majority of applications the CL series clamp-on model is the most cost-efficient. For long wear in high frequency applications we recommend our premium clamp-on C-Series. To provide an integrated valve application, the Roto Hammer direct mount premium E-Series may be preferred. Universal clamp-on style with superior hardware for fast, easy installation Deep channel casting for positive chain control One-piece chain guide for enhanced integrity of assembly All zinc-plated hardware for greater corrosion resistance All-ductile wheels Total quality control