OGA has developed, through its extensive experience, an overarching after-sales department that engages with the development of each project from the very moment of its design. It offers preventive service through various work schemes and the availability of all spare parts for the maintenance of pneumatic conveying systems and bulk material handling.

The after-sales area is comprised of a management team, supply coordination, engineers specializing in mechanical and automation fields, as well as technicians to comprehensively cover any agreed-upon preventive maintenance plan.