Within the Holmatro multi purpose cylinder range, customers can choose from 50 different models that are fitted with base mounting holes and collar thread as standard. The models with a capacity to 50 tons also have internal plunger thread. The Duplex Power Coating is a nickel coating that makes the plunger corrosion-resistant. The top layer of hard chrome protects the plunger against scratches and prevents the adhesion of objects including welding spatters. The Duo Power Ring is a combination of a superior seal and a strong composite bearing. The Thread Protector is a robust protective ring for the thread on the cylinder housing. The protector has a handy tonnage indication. XL Saddle+: The extra-large saddle completely covers the top of the plunger, which means that it is always protected against damage. In addition, its unique sloping shape ensures optimum transmission of the load to the plunger. This limits undesired eccentric loads. Moreover, the QPQ treatment gives this type of XL Saddle long term protection against corrosion.