DLC Coating Equipment: A Complete Guide to Technology Types, Core Advantages, and Applications

DLC (Diamond-Like Carbon) coating equipment is a type of vacuum coating equipment specifically designed for preparing diamond-like carbon films. Diamond-like carbon is an amorphous carbon material that combines properties of both diamond and graphite. Its core advantages are high hardness, low friction coefficient, excellent wear resistance, and chemical stability.

Main Deposition Technologies

DLC coating equipment mainly adopts two types of technologies: PECVD (Plasma-Enhanced Chemical Vapor Deposition) and PVD (Physical Vapor Deposition). PECVD uses hydrocarbon gases (such as acetylene and methane) as raw materials and deposits films through plasma decomposition. Its characteristics include low deposition temperature (typically below 150-200°C), the ability to process low-temperature substrates such as plastics, and a non-line-of-sight process that can uniformly coat complex three-dimensional surfaces. PVD-type equipment includes cathodic arc deposition and magnetron sputtering, used to prepare hydrogen-free DLC (ta-C), which produces denser films with higher hardness.

Typical Equipment Types

UBMS® Series (Kobe Steel): DLC coating equipment equipped with independently developed sputtering evaporation sources. It can first sputter an adhesion layer, then deposit DLC films at high speed using PE-CVD. MF720 (Japan ITF): Uses filtered arc evaporation sources (MFA) to form smooth hydrogen-free DLC films, with a maximum film thickness of 20μm, coating area of φ720×H750mm, 5 MFA evaporation sources, and a 12-axis self-rotating and revolving fixture. PL711 (Platit): A compact sputtering system based on HiPIMS technology, equipped with 2 planar HiPIMS cathodes, supporting DLC2 and DLC3 carbon-based coatings, with a maximum load of 250kg and a single batch cycle of 8-9 hours. V.MAX1500 (VaporTech): Supports up to 6 cathodic arc or magnetron sputtering sources, and also supports PECVD deposition of DLC, with a coating area of 80cm×88cm diameter and a heating capacity of 450°C.

Key Application Areas

DLC coating equipment is widely used in automotive components (fuel injection systems, valve tappets, piston rings, etc., improving wear resistance and fuel efficiency), cutting tools and molds (aluminum processing tools, IC lead frame molds, solving aluminum sticking problems), hydraulic equipment (pump pistons, swash plates, etc., providing lubrication-free sliding performance), electronic devices (hard disk surfaces, digital camera sliding parts), medical devices (applications requiring low friction and biocompatibility), and water treatment equipment (sliding parts that avoid the use of grease).

Winwin provides DLC coating equipment and related vacuum coating equipment, ships products nationwide, and offers comprehensive after-sales service including installation, commissioning, technical training, maintenance, and spare parts supply, ensuring stable equipment operation.