{"id":525,"date":"2025-09-17T02:25:46","date_gmt":"2025-09-17T02:25:46","guid":{"rendered":"https:\/\/xtech-eng.com\/?post_type=product&p=525"},"modified":"2025-12-17T08:31:13","modified_gmt":"2025-12-17T08:31:13","slug":"jmb-series","status":"publish","type":"product","link":"https:\/\/xtech-eng.com\/?product=jmb-series&lang=en","title":{"rendered":"Nippon Gear_JMB series"},"content":{"rendered":"

Limitorque JMB Series: Specialized Valve Actuators for Water & Wastewater Industry<\/strong><\/h1>\n

Developed on the foundation of the legendary SMB series, the Limitorque JMB Series<\/b> is the premier electric actuator solution from Nippon Gear, specifically optimized for water supply, drainage systems, and heavy industrial applications. With a design focused on durability and high safety, the JMB Series ensures stable operation in the harshest environmental conditions.<\/p>\n

Technological Highlights of the JMB Series<\/strong><\/h2>\n

1. Absolute Safety Transition (Interlock Switch)<\/strong><\/h3>\n

Operator safety is the top priority for the JMB Series. The equipment is equipped with a standard interlock switch<\/b>:<\/p>\n

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    When switched to manual mode (handwheel operation), the electrical circuit is automatically and completely disconnected.<\/p>\n<\/li>\n

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    This absolutely prevents the risk of the motor starting unexpectedly during manual intervention, ensuring the safety of technicians.<\/p>\n<\/li>\n<\/ul>\n

    2. Precise Stroke & Torque Control<\/strong><\/h3>\n
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      Limit Switch:<\/b> Utilizes a unique intermittent gearing mechanism, ensuring the set stopping points remain constant without deviation over time. Stopping points can be configured at any position throughout the stroke.<\/p>\n<\/li>\n

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      Torque Switch:<\/b> Protects the valve and drive mechanism from damage caused by overload during excessive opening or closing.<\/p>\n<\/li>\n<\/ul>\n

      3. “Ultra-Durable” Gear Drive System<\/strong><\/h3>\n
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        Premium Materials:<\/b> Aluminum-bronze alloy worm gears combined with Chrome-moly steel worm shafts.<\/p>\n<\/li>\n

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        Optimal Lubrication:<\/b> The fully sealed gearbox is immersed in extreme-pressure grease, allowing for smooth operation, high load capacity, and an exceptionally long service life.<\/p>\n<\/li>\n

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        Bearing System:<\/b> A combination of ball bearings and tapered roller bearings enhances stability when subjected to high thrust from the valve stem.<\/p>\n<\/li>\n<\/ul>\n

        4. Designed for High-Humidity Environments<\/strong><\/h3>\n

        Every JMB model comes standard with a grounding terminal<\/b> and a Space Heater<\/b>. This feature is critical for the water and wastewater industry, preventing condensation and ensuring internal electrical circuits remain dry and stable.<\/p>\n

        Practical Applications<\/strong><\/h2>\n

        The JMB Series actuator is perfectly compatible with:<\/p>\n

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          Direct Mounting:<\/b> Gate valves, Globe valves, Sluice gates, and Hydraulic valves.<\/p>\n<\/li>\n

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          Combined with Gearbox:<\/b> Operating Butterfly valves, Plug valves, and Dampers.<\/p>\n<\/li>\n

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          Sectors:<\/b> Municipal water supply and drainage, wastewater treatment plants, thermal\/hydroelectric power, and shipbuilding.<\/p>\n<\/li>\n<\/ul>\n

          JMB Series Technical Specifications Summary<\/strong><\/h2>\n
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          Model<\/span><\/td>\nAllowable Thrust (kN)<\/span><\/td>\nAllowable Torque (N\u00b7m)<\/span><\/td>\nMax Shaft Diameter (mm)<\/span><\/td>\n<\/tr>\n<\/thead>\n
          JMB-04<\/b><\/span><\/td>\n35<\/span><\/td>\n110<\/span><\/td>\n26<\/span><\/td>\n<\/tr>\n
          JMB-00<\/b><\/span><\/td>\n62<\/span><\/td>\n360<\/span><\/td>\n46<\/span><\/td>\n<\/tr>\n
          JMB-0<\/b><\/span><\/td>\n105<\/span><\/td>\n1,000<\/span><\/td>\n60<\/span><\/td>\n<\/tr>\n
          JMB-2<\/b><\/span><\/td>\n320<\/span><\/td>\n2,700<\/span><\/td>\n86<\/span><\/td>\n<\/tr>\n
          JMB-4<\/b><\/span><\/td>\n1,100<\/span><\/td>\n11,500<\/span><\/td>\n127<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n