Interfrez Sp. z o.o. in Tarnów is a limited liability company entered into the National Court Register on 12.09.2001 by the District Court in Kraków, 12th Commercial Division. Its business profile is based on more than twenty years of experience of its shareholders and management. The core business areas of the company include manufacturing, trading and services related to production of finished metal products.
Having conducted a market survey the company specializes in production for railway industry, mainly of elastic rail fasteners for use on pre-tensioned pre-stressed concrete sleepers of type SB. Its flagship product is the SB7 elastic tension rail clamp produced according to Technical Approval No. AT/07-2012-0051-02 issued by the Railway Institute in Warsaw. In 2012 Interfrez Sp. z o.o. implemented the process of production/ assembly of elements of the SB-IF1 elastic rail fastening system according to Technical Approval No. AT/07-2012-0111-01 issued by the Railway Institute in Warsaw.
The company maintains certified Factory Production Control Systems:
a) CZKP IK — 18/2012-02 for SB7 clamp,
b) CZKP IK — 21/2012-01 for SB-IF1 system.
In 2016, PKP Polskie
Linie Kolejowe S.A. — Energy Office issued Approval
No. IEN4a-5520-13/2016 of 04.03.2016 making it possible for the company to use the following elements on the infrastructure of PKP PLK S.A.:
• clamps for electric heating of turnouts: 49E1-KL-IF, 60E1-KL-IF, 49E1-SP-IF,
60E1-SP-IF • clamping springs for temperature sensors of electric heating systems used on turnouts: ZNOR49 and ZNOR60.
In 2014 Interfrez Sp. z o.o. implemented the Quality Management System according to PN-EN ISO 9001:2009 and was awarded the QMS Certificate — QMS IK — 01/2014-02 issued by the Railway Institute in Warsaw with regard to production and sale of elements of the system and the system for clamping rails to concrete sleepers and clamps for electric heating of turnouts, and in 2015 EC Certificate No. 1467/4/CH/15/INF/PL/392 issued by the Railway Institute in Warsaw for SB-IF1 clamp system.