IndustryPlastics

Plastics

Injection, blow molding and extrusion

We work with manufacturers of molds and tooling for injection, blow molding, extrusion and thermoforming of plastics, a sector where precision, polish and material stability directly define the quality of the final part. Producing cavities, cores, inserts, plates and mold bases requires steels with excellent machinability, good polishability, high wear resistance and, in many cases, corrosion resistance. At NAT MAC we offer mold steels, pre-hardened grades, tool-grade steels and stainless steels, in the sizes the project needs. We complement them with facing and grinding, cut-to-size services and technical advice to choose the steel that best balances machinability, hardness, polish and tooling life, helping the mold last longer and produce consistent parts.

Main features
Specialty steels for molds, inserts, dies and tooling.
Materials with dimensional stability, machinability and polishability.
Injection, blow molding and extrusion processes with repetitive production.

What is made in this industry?

Injection molds
Cavities, cores and bases for manufacturing injection-molded parts.
Blow molds
Tooling for containers and hollow plastic components.
Extrusion dies
Dies for continuous production of plastic profiles and products.
Mold base plates
Plates used within mold assemblies and mold bases.
Inserts
Replaceable components used in cavities and working areas.
Cores
Elements used to form internal geometries of molded parts.
Mold bases
Assemblies and plates that support cavities, inserts and mold systems.
Guides and components
Precision elements for mold movement and alignment.
Fixtures and devices
Tooling used in fabrication, assembly and inspection.

Featured products

P20 SteelP20 SteelPlastics industryP20 + Ni SteelP20 + Ni SteelPlastics industryH13 SteelH13 SteelHot work420 Stainless Steel420 Stainless SteelPlastics industryD2 SteelD2 SteelCold workA2 SteelA2 SteelCold workS7 SteelS7 SteelShock resistantO1 SteelO1 SteelCold work1.2714 Steel1.2714 SteelHot work6061 aluminum6061 aluminumStructures and precision machining7075 Aluminum7075 AluminumMaximum structural strengthElectrolytic CopperElectrolytic CopperHigh-conductivity copper (ETP)C17200 CopperC17200 CopperBeryllium copper (Class 4)C17510 CopperC17510 CopperBeryllium copper (Class 3)C18000 CopperC18000 CopperNickel-silicon-chromium copper (Class 3)C18150 CopperC18150 CopperChromium-zirconium copper (Class 2)C18200 CopperC18200 CopperChromium copper (Class 2)SAE 660 BronzeSAE 660 BronzeGeneral-purpose bearing bronzeSAE 68 BronzeSAE 68 BronzeHigh-strength aluminum bronzeAcetal (POM)Acetal (POM)High-stiffness, dimensionally stable polyacetalPET PolyesterPET PolyesterSemi-crystalline polyethylene terephthalate, rigid and highly stablePETG CopolyesterPETG CopolyesterGlycol-modified polyethylene terephthalate, transparent and easy to thermoformPolycarbonate (PC)Polycarbonate (PC)Transparent thermoplastic with extremely high impact resistancePolypropylene (PP)Polypropylene (PP)Lightweight homopolymer with high chemical and heat resistanceHD Polyethylene PE 300HD Polyethylene PE 300Lightweight, tough thermoplasticTeflon (PTFE)Teflon (PTFE)Non-stick, chemically inert fluoropolymerPolyetheretherketone (PEEK)Polyetheretherketone (PEEK)Ultra-high-performance, maximum-temperature semi-crystalline thermoplasticIntenss™ PRO-DIEIntenss™ PRO-DIEStarrett bi-metal band saw blade with Split Chip technology and multiple cutting edges, ideal for vertical contour cutting.Primalloy™Primalloy™Starrett bi-metal band saw blade with Extended Life (EXT) treatment for maximum fatigue life.NATCUT™ M42-PNATCUT™ M42-PM42 bi-metal band saw blade with pointed tooth for general-purpose cutting.NATCUT™ M42-TNATCUT™ M42-TM42 bi-metal band saw blade with tensile tooth for hollow sections and structural shapes.NATCUT™ M42-HNATCUT™ M42-HM42 bi-metal band saw blade with turtle-back (H) tooth for heavy loads and bundle cutting.NATCUT™ M51-PNATCUT™ M51-PPowder-metallurgy M51 bi-metal band saw blade with pointed tooth for high-hardness materials.NATCUT™ M51-TNATCUT™ M51-TM51 bi-metal band saw blade with tensile tooth for structural shapes and high-hardness materials.Advanz™ MC7Advanz™ MC7Starrett carbide band saw blade with progressive ground trapezoidal tooth (7 chips) for difficult steels.Advanz™ CSAdvanz™ CSStarrett triple-chip carbide band saw blade with negative rake for hardened materials.CONDACUT®CONDACUT®Specialty lubrication for precision cutting and machiningMECAGREEN®MECAGREEN®Plant-based water-soluble machining fluidsPOLYBIO®POLYBIO®Soluble oils for multi-metal machining and grindingCalipersCalipersOutside, inside, depth and step measurement, with digital or vernier reading.MicrometersMicrometersHigh-precision outside measurement, with carbide faces and electronic models.Inside and depth gagesInside and depth gagesDepth of holes, slots and steps.Indicators and dial gagesIndicators and dial gagesDial and digital indicators for tolerance verification.Bore gagesBore gagesInside diameter measurement, including 3-point AccuBore.SquaresSquaresSquareness and right-angle verification in the shop.Rules and parallelsRules and parallelsLayout, alignment and reference surfaces.Protractors and angle gagesProtractors and angle gagesPrecise angle measurement and layout.Dividers and layout toolsDividers and layout toolsLayout, dimension transfer and long distances.Height gagesHeight gagesVertical layout and measurement on a granite surface plate.Hardness testersHardness testersPortable and bench hardness testing.Thickness and coating gagesThickness and coating gagesWall and coating thicknessSurface roughness testersSurface roughness testersRoughness measurement (Ra, Rz…)M1® LubricantM1® LubricantMulti-purpose oil that cleans, penetrates, lubricates and protects against corrosion.Surface platesSurface platesReference plane for part inspection and layout.Surface plate standsSurface plate standsSteel stands that support and stabilize surface plates.Surface plate coversSurface plate coversCompact surfaces for portable inspection of small parts.Five-face master squaresFive-face master squaresX-Y-Z alignment verification on CNC and CMM.Tri-squaresTri-squaresEconomical option for checking machine and CMM axes.Angle platesAngle platesVertical workholding for inspection and machining.Straight edgesStraight edgesFlat reference edge, grades AA (laboratory) and A (inspection).Granite parallelsGranite parallelsMatched pairs for raising parts above the plate.Precision cubesPrecision cubesFlat and square on all six faces for parallelism and perpendicularity.V-blocksV-blocksMatched pairs with five faces for holding cylindrical parts.Surface plate cleanerSurface plate cleanerMaintenance to preserve granite surfaces.PlanekatorPlanekatorFlatness measurement with autocollimator-level accuracy.Repeat-O-MeterRepeat-O-MeterDetects local surface plate errors with a dial indicator.MVR 300 · Vision systemMVR 300 · Vision systemVision measurement, manual operationMVR 300 FOV · Full field of viewMVR 300 FOV · Full field of viewField-of-view (FOV) measurementAVR vision systemsAVR vision systemsAutomated vision measurement (CNC)AVR 200 FOV · Full field of viewAVR 200 FOV · Full field of viewAutomatic + field of view (FOV)AVR 300 · Vision systemAVR 300 · Vision systemAutomated vision measurement (CNC)AVR 300 FOV · Full field of viewAVR 300 FOV · Full field of viewAutomatic + field of view (FOV)AVR 400 · Vision systemAVR 400 · Vision systemAutomated measurement, larger rangeAVR 400 FOV · Full field of viewAVR 400 FOV · Full field of viewAutomatic + field of view (FOV)AVX 550 · Vision systemAVX 550 · Vision systemAutomated measurement for large partsHDV 250 · Video comparatorHDV 250 · Video comparatorBenchtop video measurementHDV 400 · Video comparatorHDV 400 · Video comparatorBenchtop video measurementHDV 500 · Video comparatorHDV 500 · Video comparatorFloor-model video measurementKMR 200 · Video inspectionKMR 200 · Video inspectionEconomical video measurementKMR 200 Mx · Video inspectionKMR 200 Mx · Video inspectionVideo measurement, Mx versionKMR M3 · Video inspectionKMR M3 · Video inspectionVideo measurement with MetLogix M3KMR-FOV · Full field of viewKMR-FOV · Full field of viewField-of-view (FOV) measurementHB400 · Optical comparatorHB400 · Optical comparatorBenchtop horizontal, single lens, screen 16\HD400 · Optical comparatorHD400 · Optical comparatorHorizontal benchtop with dual-lens capability.HF600 · Optical comparatorHF600 · Optical comparatorHorizontal floor model for larger parts.HF750 · Optical comparatorHF750 · Optical comparatorHorizontal floor model with greater capacity than the HF600.