Gama completa de sujetadores industriales — pernos hexagonales, tornillos Allen, varillas roscadas, anclajes, arandelas y herrajes especiales en Grado 8.8 / 10.9 / 12.9 y acero inoxidable A2-70 / A4-80. Normas DIN, ISO, ANSI, JIS para maquinaria pesada, aplicaciones estructurales y conjuntos automotrices.
Los sujetadores industriales — tornillos, tuercas, arandelas, espárragos, anclajes y remaches — son los componentes portantes que mantienen unidas máquinas, estructuras y vehículos. A menudo llamados el "arroz de la industria", determinan la seguridad, vida útil y fiabilidad de cada ensamblaje. Esta guía cubre tipos de sujetadores, grados de resistencia ISO/SAE/ASTM, materiales, recubrimientos y selección de aplicaciones para ayudarle a especificar el sujetador correcto para cualquier programa de alta carga.
Un sujetador industrial es un componente mecánico estandarizado utilizado para unir dos o más piezas mediante una conexión roscada desmontable o una conexión no roscada permanente. A diferencia de la soldadura o los adhesivos, los sujetadores permiten desmontar la unión para servicio, reparación o reemplazo — crítico para equipo pesado, automoción y aplicaciones estructurales. Las cuatro propiedades ingenieriles clave de cualquier sujetador son resistencia a la tracción, límite elástico, resistencia a la corrosión y vida a fatiga, determinadas por el material, el tratamiento térmico y el proceso de laminado de rosca.
Dafluid suministra la cartera completa de sujetadores industriales — desde micro-tornillos M3 hasta tornillos estructurales hexagonales pesados M64 — en acero al carbono (Grado 4.6 a 12.9), acero aleado (A193 B7 / B16), acero inoxidable (A2-70 / A4-80), latón y titanio, conforme a las normas DIN, ISO, ANSI/ASME, JIS, BS y GB con trazabilidad completa bajo los sistemas de calidad ISO 9001 e IATF 16949.
Nuestro catálogo cubre cada categoría de sujetador utilizada en industria pesada, construcción, automoción y energía:
DIN 933 / DIN 931 / ISO 4014 / ISO 4017 / ASTM A325 / A490. Tornillos de cabeza hexagonal roscados parcial y totalmente para acero estructural, maquinaria y puentes. M6–M64.
DIN 912 / ISO 4762 / ASME B18.3. Pernos Allen de alta tracción hasta Clase 12.9. Ideales para colectores hidráulicos, ensamblajes de motor y maquinaria de espacio reducido.
Espárragos DIN 975 / DIN 976, varillas totalmente roscadas, tuercas hexagonales (DIN 934), tuercas autoblocantes (DIN 985 nylon), tuercas con brida (DIN 6921). Para bridas, motores y ensamblajes tensados.
Anclajes de cuña, anclajes de manguito, anclajes químicos, pernos en L, pernos en J, pernos en U y pernos de cimentación. Para fijación a hormigón, placas base de acero estructural y montaje de torres/carteles.
Planas DIN 125 / grower DIN 127 / anchas DIN 9021 / cónicas DIN 6796 / pares Nord-Lock. Distribuyen carga, evitan aflojamiento y protegen las superficies de contacto.
A2-70 (304) / A4-80 (316) / B8 / B8M / B16 / Titanio Grado 2 y 5. Para aplicaciones marinas, químicas, alimentarias, submarinas y criogénicas donde la corrosión es crítica.
Los sujetadores Dafluid están calificados y en servicio en cada aplicación portante del mundo:
Combine clase de resistencia, material y recubrimiento según su carga, ambiente y norma:
| Grado / Clase | Tracción / Límite Elástico (mín) | Norma y Material | Aplicación Típica |
|---|---|---|---|
| Grado 8.8 (Métrico) / SAE J429 Gr.5 | 800 / 640 MPa | ISO 898-1; acero medio carbono, T&R | Maquinaria general, acero estructural, agrícola |
| Grado 10.9 (Métrico) / SAE J429 Gr.8 | 1.000 / 900 MPa | ISO 898-1; acero aleado 40Cr / SCM435, T&R | Chasis automotriz, equipo pesado, powertrain |
| Grado 12.9 (Métrico) | 1.200 / 1.080 MPa | ISO 898-1; acero aleado SCM435 / 42CrMo, T&R | Minería, turbinas eólicas, prensas, racing |
| A2-70 Inoxidable | 700 / 450 MPa | ISO 3506-1; acero austenítico 304 | Alimentación, pharma, química general, ≤500 ppm Cl⁻ |
| A4-80 Inoxidable | 800 / 600 MPa | ISO 3506-1; acero austenítico 316 / 316L | Marino, offshore, químico, ≤2.000 ppm Cl⁻ |
¿Necesita ayuda para especificar el sujetador correcto para su carga, ambiente y norma? Contacte a nuestro equipo de ingeniería de sujetadores con su aplicación, requisito de par y grado objetivo — le devolveremos SKUs coincidentes, planos dimensionales y una cotización formal en 24 horas.
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