Materials

The parts we supply are made of high-quality materials, with the help of precise modern machining centers and at the same time with strict adherence to technological procedures of heat treatment. Material for the production of injection or extrusion screws is supplied by German or Swedish steelworks. The PTA material used to make the PTA screw is made in Belgium.

All delivered parts go through a double inspection, one immediately after production and second again at the moment of dispatch to you, so that there is 100% certainty of the quality of the delivered parts.

THOROUGH HARDENED SCREWS AND SCREW TIP SETS

HPT1

Material: Tool steel

Main ingredients: C, Cr, Mo,V

Hardness range: 58-62 HRC

Thermal expansion coefficient: 11.0 x 10-6-11.4 x 10-6

Perfomance advantages: Wear resistance: grade 4

Corrosion resistance: grade 3

Application: General purpose resins and general engineering resins. PP, PA, LCP, ABS, PPA, POM, PBT, PC with less than 35% glass fiber

HPT2

Material: P/M powder steel

Main ingredients: C, Cr, W, Mo, V

Hardness range: 58-62 HRC

Thermal expansion coefficient: 10.8 x 10-6-11.0 x 10-6

Performance advantages: Wear resistance: grade 5

Corrosion resistance: grade 5

Application: general purpose resins and engineering resins. PP, PA , LCP, POM, PPA, PBT, PC, PPS, PEI, PEEK with less than 50% glass fiber

HPT3

Material: P/M powder steel

Main ingredients: C, Cr, Mo, V, Co

Hardness range: 58-62 HRc

Thermal expansion coefficient: 11.0 x 10-6-11.4 x 10-6

Performance advantages: Wear resistance: grade 7

Corrosion resistance: grade 6

Application: It is suitable for special engineering resin PA, LCP, PBT, PEI, PEEK, PP, POM, PPS containing less than 65% glass fiber, and suitable for high temperature resistant resins such as iron powder, ceramic powder, aluminium magnesium powder, magnetic powder, copper powder, etc. and low viscosity plastics. After coating, it is more suitable for resins such as ceramic powder.

HPT5

Material: special high-chromium tool steel

Hardness range: 60-64 HRC

Thermal expansion coeficient: 11.0 x 10-6-11.4 x 10-6

Performance advantages: Wear resistance: stupeň 6

Corrosion resistance: stupeň 8

Application: it´s suitable for special engineering resins with super corrosive flame retardant and halogen-free flame retardant formulations, including reinforced PA, PA 46, LCP, POM, PBT, PPS PA4T, 9T and other plastic raw materials and addition of less than 45% glass fiber

PTA S20

Bimetallic screw, cobalt base, hardness 52-62 HRc

PTA C56

Bimetallic screw, hardness 52-57 HRc

BIMETALLIC BARRELS

HK1

HK 1 Iron base bimetallic barrel

Main ingredients: C, Mn, Si, B, Ni, Fe, Cr

Hardess: HRC 58-62

Performance advantages: wear resistance

Application: General purpose resins and general engineering resins  (PP, PA, POM, PBT, PC) with less than 35% glass fiber

HK3

HK3 Nickel Base + 35% Cobalt Bimetallic Barrel

Main ingredients: W, Cr, B, Ni, Co

Hardness range: HRC 52-56

Performance advantages: Corrosion resistance, high temperature resistance

Application: high temperature resistance resins with iron powder, ceramic powder, aluminium magnesium powder, magnetic powder, copper powder and others

HK5

HK 5 Nickel Base +25% Tungsten Carbide bimetallic barrel

Main ingredients: W, Cr, B, Ni

Hardness: 50-56 HRc 

Performance advanteges: wear resistance, corrosion resistace

Application: Suitable for wear resistance and corrosion resistance special engineering resin. PP, PA, LCP, POM, PPA, PBT, PPS, PEI, PEEK, PA46, LCP, HTN with less than 50% glass fiber

HK6

HK6 Nickel Base +45% Tungsten Carbide Bimetallic Barrel

Main ingredients: W, Cr, B, Ni

Hardness range: HRC 58-62

Preformance advantages: High wear resistance, high corrosion resistance

Application: Suitable for wear resistance and corrosion resistance special engineering resin. PP, PA, LCP, POM, PPA, PBT, PPS, PEI, PEEK (halogen free materials: PA46, LCP, 4T, 9T, HTN) with less than 65% gůass fiber