Pedrini in Oman

International Marble, one of the world’s largest producers of marble slabs and finished elements with an annual output in excess of 2 million square metres and a customer of Pedrini since 2003, recently installed a large Resinline Pedrini plant for the resining of marble strips at its factory in Oman.

The plant operates with tray handling and was designed and customised by Pedrini to meet the needs of the Omani company. It has a length of 72 metres and a maximum production rate of 45 trays/hour, equivalent to approximately 4000 sq.m/day.
The plant has been combined with a Pedrini line for thickness calibration and pre-polishing of marble strips, after which a robot picks up the strip and deposits them side by side on the Resinline plant trays. An elevator then transfers the laden trays to the lower level where they pass through a tunnel kiln for drying.

At the end of the line a second elevator transfers the trays to the upper level. These are positioned in the resining zone, where the resin is spread and distributed manually on the strips with the aid of a batching and mixing pump and suitable spatulas.The trays pass through the vacuum chamber which is activated when necessary to increase resin penetration. A rapid elevator raises the trays to the level established by the computer and a pusher inserts them into the vertical kiln consisting of three towers placed side-by-side with 30 layers per tower to polymerise the resin. The three-tower kiln has a total storage capacity of 90 trays and guarantees that each tray spends a period of 120 minutes in the kiln, entirely sufficient for polymerisation of the resin.

The rapid elevator descends to the transport level and the tray bearing resined and polymerised product is positioned in proximity to the robot for discharge where the strips are picked up one by one and deposited in a vertical position on the pallet.