E3ZR-C

The results of a thorough analysis of the ingress paths of cutting oil show that the deterioration of cable sheaths is a large factor.
The cable sheaths of OMRON’s Oil-resistant Components are made from fluororesin materials to provide maximum protection against the deterioration with a unique new concept. The result is an oil resistance impregnable to even highly aggressive cutting oils.

Fluororesin, which provides superior resistance to corrosion, is used for the outer cable sheath to suppress cable swelling and deterioration and prevent the ingress of cutting oil into the PCB inside the Sensor.

*The Strongest Material: Based on June 2016 OMRON investigation.

In addition to deterioration of cable sheaths, deterioration of the rubber used at joints and moving sections is also a major cause of ingress of cutting oil. In order to prevent rubber deterioration, OMRON’s Oil-resistant Components use a new fluorinated rubber at joints and moving sections. Combined with fluororesin cables, this double use of the strongest materials forms an impregnable wall of oil resistance.

Hydrogenated nitrile butadiene rubber (HNBR), which provides superior resistance to oil, was blended with fluororubber in a unique OMRON compound to develop a new rubber that provides superior resistance to both swelling and deterioration due to cutting oil.
It is used in seals for joints and moving sections that prevent ingress to prevent deterioration and destruction of the seal due to cutting oil, resulting in increased oil resistance performance.

*The Strongest Material: Based on June 2016 OMRON investigation.

In addition to cable sheaths, joints, and moving sections, cutting oil enters most easily in gaps between different materials. OMRON’ s Oil-resistant Components completely block the ingress of cutting oil with a state-of-the-art sealing method that does not allow the creation of gaps.

The gaps at joints between metal parts are sealed by fusing the metal parts together with the laser beam.
At other joints, O-rings of the new material are used and the circumference is fastened with laser welding to prevent ingress of cutting oil without any adhesive which can cause swelling and deterioration.

The laser beam is controlled with high precision. This method of fusing metal at a precise location with a small laser beam spot enables application to sensors and other small electronic devices.

In addition to cable sheaths, joints, and moving sections, cutting oil enters most easily in gaps between different materials. OMRON’ s Oil-resistant Components completely block the ingress of cutting oil with a unique structure that does not allow the creation of gaps.

A bushing made from the new material is compressed and deformed by pressing a metal ring against it to tighten and seal the fluororesin cable.
This prevents the ingress of cutting oil through the cable lead section.