ALPMA grid cable trays made of stainless steel All clear for the right solution Grid cable trays made of electropolished stainless steel are an innovative system from ALPMA for the open laying of cables. They were developed as an alternative to conventional closed-type cable and supply line shafts. ALPMA grid cable trays are the right solution wherever corrosion resistance, easy cleaning and traceable cable routing are important. Plus: the trays are designed to carry high loads and can be mounted without tools using special sleeve connectors. More details: Areas of application Overview of sizes Mounting and accessories Inquiry