Professional CNC and conventional metalworking
Professional CNC and conventional metalworking

Pistons for double-sided piston rod

Pistons for double-sided piston rod are used in double-acting hydraulic cylinders. These cylinders, having a double-sided piston rod, are widely used in various types of machines. Mainly in the drives of rotation mechanisms or feed mechanisms in machine tools. Wherever it is necessary to obtain the same speed of working movements in both directions, these types of cylinders are used.

Tłoki siłowników z dwustronnym tłoczyskiem 01

The key difference in the design of a double-acting cylinder with a double-sided piston rod compared to the most common single-acting and double-acting cylinders with a single-sided piston rod is the design of the piston allowing for double assembly of piston rods. The piston of such a cylinder requires high dimensional and geometrical tolerances on the centering of the two piston rods. Due to the absolute necessity to keep the within axial tolerance, production from “one fastening” is required. High tolerance of piston rod assembly and assembly threads ensures piston rod concentricity in both directions.u kierunkach.

What pistons with double-sided piston rod cylinders do we produce?

Pistons for cylinders with double-sided piston rod produced by our company cover the entire standard cylinder series:

 Wariant 1Wariant 2
Średnica tłoka cylindra D [mm]Średnica tłoczyska d1 [mm]Średnica tłoczyska d2 [mm]
402228
502836
633645
804556
1005670
1257090
14090100
160100115
180110125
200125140

The piston design for the cylinder depends on the seal design. The pistons we manufacture can use:

  • compact seals (TPM, TPL type);
  • compact seals made of PTFE-60Br type GER with guide rings;
  • other variants according to an individual design
Tłoki siłowników z dwustronnym tłoczyskiem 03

Another important element of the piston design is lack of a piston overrun. The damping bushing itself can be part of the piston design or be associated with the piston rod – depending on the design of the cylinder.

Feel free to contact our technical department regarding the production of pistons for cylinders with double-sided piston rod. We guarantee high quality. We deliver ready-made products to the indicated address.