Foundry - POLNA S.A.

The foundry of “POLNA” S.A. inherits the traditions of the foundries built in Przemyśl in 1923.

The foundry, put into service in 1999, is equipped with modern foundry and laboratory equipment.

We offer castings from:

• grey cast iron
• ductile cast iron
• carbon cast steel

The foundry specializes in the production of gray iron from the following grades:

• EN-GJL-150
• EN-GJL -200
• EN-GJL -250
• EN-GJL-300

The foundry specializes in the production of ductile iron from the following grades:

• EN-GJS-400-15
• EN-GJS -400-18LT
• EN-GJS -500-7
• EN-GJS -600-3
• EN-GJS -700-2
• EN-GJS -450-10
• EN-GJS -400-18
• EN-GJS -350-22LT
• EN-GJS -400-18ULT

The foundry specializes in the production of carbon steel from the following grades:

• GP240GH/1.0619
• WCB

In addition, we offer the manufacture of:

• casting equipment
• technological documentation

We guarantee:

• quick commencement of production
• timeliness of delivery
• competitive prices

Our certificates:

• Quality Management System according to ISO 9001:201
• Quality Assurance System of the material manufacturer according to Directive 2014/68/U

Production capacity:

• machining:

dimensions of casts: 550×450 mm

weight of casts: up to 30 kg

• manual:

size of the cast: 900×900 mm

weight of casts: up to 1500 kg

• heat treatment of casts:

possible in our production facilities

• mechanical treatment

possible in our production halls

Foundry facilities:

• Melting room

We own induction furnaces made by ABB, and induction furnace made by ZAM Kęty. Production capacity: 3 thousand tons a year.

• Core room

Equipped with core shooters, blowers, able to perform cores using the COLD BOX and HOT BOX method, as well as the post for manual production of cores in organic substances.

• Sand conditioning room

Completely computerized post for sand conditioning, based on the installation manufactured by EIRICH.

• Moulding room

Forms are manufactured with the use of:

• an automatically controlled moulding line with foundry moulding machine manufactured by HWS
• a station with the impulse moulding machine FI 6050B
• a station for manual moulding

• Cleaning room

Equipped with a set of devices:

– for the treatment and transport of casts
in electric chamber furnaces for heat treatment.
It is also equipped with a station to detect moulding defects using method of coloured penetrants.

• Laboratory
• Analysis of chemical composition is performed with the use of a spectrometer.
• The scope of the strength tests:

– static tensile tests with the determination of Rp0,2, Re, A5, Z etc.,
– impact test,
– hardness test with use of Brinell and Vickers method.

• Metallographic tests – metallographic macro- and microscopy.

• Pattern roomPerforms the foundry instrumentation of the following materials:

– aluminium alloys
– chemically hardened resins
– other plastics on the basis of 3D models.

• Technological documentation

We perform comprehensive technological documentation, using computer programs to support the work of designers.