Leading Experts in Sealing Technologies

Expansion Plugs Division

Founded in 1982 in Milan, KSA provides comprehensive sealing solutions. We develop metal, metal-rubber, thermoplastic and elastomeric products. We are located in Italy, 15 km. northeast of Milan. Our design and manufacturing facilities and regional infrastructure allow us to meet the needs of a broad range of industries and technologies.
KSA introduced the BALL EXPANSION PLUGS product line in 1995, which was soon followed by the introduction of the RIVET EXPANSION PLUGS. Both types of plugs permanently plug and seal low, medium and high pressure leaks in construction equipment, hydraulic systems, pneumatic components and automotive systems.

Customer Focused

We’ve introduced a complete quality assurance system to measure manufacturing performance levels in all departments, in order to meet the most demanding specifications. With over three decades of operation, we have developed a high level of expertise in materials research, design and manufacturing. KSA products offer the highest reliability in the marketplace. To meet the needs of any engineering project, our team uses the most advanced 3D-imaging systems to provide detailed drawings for your components.
We test every material to verify that all physical and mechanical properties conform to your specifications precisely. We run tests and inspections according to ISO, ASTM and DIN standards. Our quality system has been certified to meet ISO 9001 international standards since 1995. We’ve built a flexible organization, and established a group of knowledgeable employees, all dedicated to providing you with outstanding service.

New Projects

To help you develop new projects, our advanced materials experts and applications engineers will collaborate with your team to rapidly develop 3-D renderings and product simulations.


KSA subjects every new product to a sustained prototype run to ensure that each product meets our customers' specifications precisely. If changes are needed in the material or the process, adjustments are made and the prototype run is repeated. KSA is one of the most responsive companies in the sealing technology industry. From prompt answers to technical questions, to quick turnaround of quotes and short lead times, we get it done for you.

Delivery and Logistics

We meet delivery expectations and we can provide for rush orders and scheduled deliveries to meet 'just-in-time' production runs.

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