Enduroq 3: Laser cladded surface technology

Enduroq 3

Enduroq 3 is the latest development in welded overlay coatings. Characteristics match those of the former 3000 series, although the layer is applied in by means of an improved coating process.

Laser cladding

Enduroq 3 has been introduced in specific offshore applications where large piston rods are exposed to splash zones and highly dynamic mechanical loads. The exceptionally severe application circumstances in deep water offshore drilling require surface technology properties outside the conventional galvanic or thermal sprayed technologies can provide. Rexroth uses the laser cladding process to apply a cobalt based alloy (Ultimet) onto a steel rod. With the in-house production of the overlay welding surface technology, piston rods with a rod diameter of up to 600 mm can be equipped with the welded overlay.

Enduroq 3

The Enduroq 3 is a single layer surface technology. Its characteristics combine for optimal cylinder functionality in high corrosion industries. The unique corrosion protected surface technology with no porosity and zero permeability guarantees long lasting surface protection.

Customer benefits


  • Extreme corrosion protection
  • No porosity
  • Zero permeability
  • High ductility
  • Highest quality standards
  • Longer lifetimes
  • Minimum downtime
  • Easy field repair