{"id":22818,"date":"2026-06-17T10:47:30","date_gmt":"2026-06-17T13:47:30","guid":{"rendered":"https:\/\/actbr.com.br\/produto\/hydraulic-safety-block-tn25-category-4\/"},"modified":"2026-06-17T10:47:30","modified_gmt":"2026-06-17T13:47:30","slug":"hydraulic-safety-block-tn25-category-4","status":"publish","type":"product","link":"https:\/\/actbr.com.br\/en\/produto\/hydraulic-safety-block-tn25-category-4\/","title":{"rendered":"Hydraulic Safety Block TN25 Category 4"},"content":{"rendered":"

High Performance and Safety for Heavy Presses and Injection Molding Machines<\/strong><\/p>\n

When the challenge is to reconcile high flow rates with the rigorous requirements of NR-12, the TN25 Category 4 Hydraulic Safety Block from ACT Sistemas Hidr\u00e1ulicos is the definitive technical solution. Unlike smaller models, the TN25 uses monitored logic elements (cartridges), allowing the control of large volumes of oil with minimal pressure drop and maximum response speed.
This block is the heart of safety systems in high-tonnage presses, injection molding machines, and large-scale equipment, where component failure is not an option. <\/p>\n

Key Advantages of the TN25 Block with Logic Elements
\n\u2022 Logic Elements Technology (Cartridges): Instead of spool directional valves, the TN25 uses monitored Atos LIFI\/LIDA logic elements. This architecture allows for much higher flow rates and greater durability in fast cycles.
\n\u2022 Poppet Position Monitoring: Each logic element features an inductive proximity sensor that monitors the actual position of the poppet. This ensures that the safety PLC knows precisely whether the line has been intercepted.
\n\u2022 Category 4 Safety (Total Redundancy): Designed to ensure that the failure of a logic element or pilot valve does not compromise the safe stopping of the machine.
\n\u2022 Venting Valve: The block’s pressure control is also performed by a monitored valve, creating a dual safety loop.
\n\u2022 Robust Cast Iron Construction: Manifold block machined from high-strength cast iron bar (139.7 mm x 165.1 mm), supporting pressures up to 315 bar.<\/p>\n

Technical Specifications (TN25 Model)<\/strong><\/p>\n\n\n\n\n\t\n\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t
Par\u00e2metro T\u00e9cnico<\/th>Especifica\u00e7\u00e3o Detalhada<\/th>\n<\/tr>\n<\/thead>\n
V\u00e1lvula de Ventagem<\/td>Atos DKE-1631\/2\/FV-N24DC (Monitorada)<\/td>\n<\/tr>\n
Elementos L\u00f3gicos<\/td>Atos LIFI-25433\/NC (Monitorados)<\/td>\n<\/tr>\n
V\u00e1lvula de Al\u00edvio Principal<\/td>DBDH20-K-10\/315 (Alta Vaz\u00e3o)<\/td>\n<\/tr>\n
Vaz\u00e3o Nominal<\/td>Projetado para sistemas de alta capacidade (Consultar projeto)<\/td>\n<\/tr>\n
Press\u00e3o M\u00e1xima<\/td>315 bar (4568 PSI)<\/td>\n<\/tr>\n
Tens\u00e3o de Comando<\/td>24V DC<\/td>\n<\/tr>\n
Conex\u00f5es de P\u00f3rticos<\/td>P, T, X2 (G 1\") e X1 (G 3\/4\")<\/td>\n<\/tr>\n
Certifica\u00e7\u00f5es<\/td>CE, T\u00dcV, SIL 2\/3, PL e<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n

Operation and Safety Logic (NR-12)<\/strong>
\nThe logic of the TN25 is based on cross-monitoring between the pilot valve and the power logic elements:<\/p>\n

1. Rest State (Safety): The logic elements remain closed, blocking the flow of oil to the cylinder. The sensors confirm the “closed” position.
\n2. Advance Command: The pilot valve directs the oil to the drain, thereby opening the logic elements. The system monitors the response time and synchronized opening.
\n3. Fault Monitoring: If one of the logic elements fails to close (due to contamination or spring breakage), the sensor will send an error signal to the safety PLC, which will prevent the next cycle and shut down the motor-pump group. <\/p>\n

Certifications and Compliance<\/strong><\/p>\n

\u2022 NR-12 (Brazil): Full compliance for presses, press brakes, and large-scale machinery.
\n\u2022 ISO 13849 (PL e): Maximum performance level for control systems.
\n\u2022 IEC 61508 (SIL 2 \/ SIL 3): Functional safety integrity certification for electronic and hydraulic components.
\n\u2022 Machinery Directive 2006\/42\/EC: International safety standard.<\/p>\n

\u2022 Recommended Applications<\/strong>
\n\u2022 The TN25 model is the ideal choice for:<\/p>\n

\u2022 High-Tonnage Presses (Automotive, metallurgical);
\u2022 Large-Scale Plastic and Aluminum Injection Molding Machines;
\u2022 Waste Compaction Machines;
\u2022 Heavy Forging and Stamping Systems.<\/p>\n

Request a Sizing for the TN25 Block<\/strong><\/p>\n

Contact our technical team to size the ideal TN25 block for your application and ensure the safety and efficiency of your hydraulic system. <\/p>\n","protected":false},"excerpt":{"rendered":"

\u2022 High Flow and Logic Element Technology<\/strong><\/p>\n

\u2022 NR-12 Compliance for high-flow systems with the TN25 Category 4 Block. Atos monitored logic element technology, 315 bar pressure, and SIL\/PL certification. Maximum safety for heavy presses. <\/p>\n

 <\/p>\n

Cat\u00e1logo<\/a><\/p>\n","protected":false},"featured_media":22089,"template":"","meta":[],"product_brand":[],"product_cat":[340,343],"product_tag":[],"class_list":["post-22818","product","type-product","status-publish","has-post-thumbnail","product_cat-manifold-blocks","product_cat-safety-block-nr-12","first","instock","shipping-taxable","product-type-simple"],"yoast_head":"\nHydraulic Safety Block TN25 Category 4 - ACT Sistemas Hidr\u00e1ulicos<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/actbr.com.br\/en\/produto\/hydraulic-safety-block-tn25-category-4\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Hydraulic Safety Block TN25 Category 4 - ACT Sistemas Hidr\u00e1ulicos\" \/>\n<meta property=\"og:description\" content=\"\u2022 High Flow and Logic Element Technology \u2022 NR-12 Compliance for high-flow systems with the TN25 Category 4 Block. 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