21 Series Cylinders

21 series cleanline pneumatic cylinders manufactured to ISO 15552 standards meet European specifications which standardise overall cylinder dimensions and thread sizing to achieve interchangeability with all other manufacturers.

The outer profile is a flat surface; therefore, the build-up of contaminants to the outside of the cylinder is limited. Older cylinder designs have uneven surfaces; this creates a recess for the build-up of unsightly debris which, over time, can ultimately cause deterioration of the device.

Typically within applications and irrespective of brand, pneumatic cylinder failures are caused mainly by operating conditions.

The build-up of contaminants or corrosive substances can damage the nose of the cylinder and cause the seals to leak, which reduces the performance of the pneumatic cylinder. Replacing a pneumatic cylinder is expensive, and seal replacement is time-consuming.

We offer a unique pneumatic cylinder with a corrosion-resistant stainless steel nose which includes additional rod wiper seals that protect the internal cylinder seals. The cylinder nose can easily be removed to replace the rod wiper seals without having to take apart the entire pneumatic cylinder, ultimately saving time and money.

21 series pneumatic cylinders range from 32mm to 100mm bore; they are double acting with magnetic pistons. Other options include stainless steel piston rods, ATEX certification or Viton seals for higher temperature use of up to +150°C.

Within the 21 series cylinder range, other cylinder designs include through-rod, back-to-back, tandem, two-stroke tandem and multi-positioning cylinders.