HYDRAULIC CYLINDER AND METHOD OF FORMING THE SAME

摘要

The hydraulic cylinder includes a main body (10a) defining a central axial bore (10b), in which a piston is mounted for axial movement, and an external appendage (10k) on said main body. The main body (10a) has a cylindrical wall thickness (t) and an external wall (10i) on the exterior periphery of said main body (10a) having an axial thickness not substantially exceeding (t). The hydraulic cylinder is made by a method comprising forming at least one of the main body (10a) and external appendage (10k) by a moulding step, a second moulding step causing the appendage (10k), and external wall (10i) to be interconnected to form an external axial wall thickness adjacent said main body (10a) having a value substantially exceeding (t).