{"product_id":"mj","title":"Commercial Door Operator for Rolling \u0026 Sectional Doors LiftMaster MJ","description":"\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003eLiftMaster MJ Medium-Duty Logic Jackshaft Operator\u003c\/strong\u003e\u003cspan\u003e is a commercial-grade door operator designed for smaller and lighter rolling steel doors, grilles, and high or vertical-lift sectional doors in mid-range duty cycle environments. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis operator is engineered for dependable performance in commercial facilities where controlled operation and reliability are essential. It supports wall-mounted installation and is suitable for applications requiring up to \u003c\/span\u003e\u003cstrong\u003e12 cycles per hour and fewer than 50 cycles per day\u003c\/strong\u003e\u003cspan\u003e. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe MJ series features a mechanical limit system, solid-state logic control board, and emergency disconnect for manual operation, ensuring safe and consistent door control in daily commercial use.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e \u003cstrong\u003eRadio receiver\u003c\/strong\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• Security+R 315 MHz radio receiver \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• Supports up to 23 Security+ remote controls and unlimited DIP switch remotes \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eElectrical\u003c\/strong\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• Single-phase 115V \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• Control circuit: 24V NEC Class 2 \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eDrive system\u003c\/strong\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• First-stage heavy-duty 4L V-belt \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• Second and third stages: \u003ca href=\"tg:\/\/search_hashtag?hashtag=48\" class=\"anchor-hashtag\"\u003e#48\u003c\/a\u003e chain \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eBearings \/ bushings\u003c\/strong\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• Heavy-duty oil-filled bushings \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eBrake\u003c\/strong\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• Heavy-duty solenoid-actuated brake \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eConstruction\u003c\/strong\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• NEMA 1 electrical enclosure \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• Heavy-duty 11-gauge steel frame \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• Baked-on powder coat finish \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• Drilled and pinned reduction sprockets \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• 2-year limited warranty\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eInstallation Features\u003c\/strong\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• Universal mounting: Yes \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• Maximum door height: 14 ft standard (additional capability available) \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• Maximum door width: 22 ft \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• Maximum allowable door area: 320 sq. ft.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0724\/7000\/3878\/files\/LiftMaster-MJ-Product-Data-Sheet.pdf?v=1769452531\" target=\"_blank\" title=\"LiftMaster-MJ-Product-Data-Sheet\" rel=\"noopener\"\u003e\u003cstrong\u003eDownload PDF\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003ePrice available upon request. Contact us for a custom quote.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"LiftMaster","offers":[{"title":"Default Title","offer_id":56078134509734,"sku":"LiftMaster--mj","price":1300.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/7000\/3878\/files\/liftmaster-mj-medium-duty-logic-jackshaft-commercial-door-operator_add23df1-ddcc-444f-af27-579348621ef4.png?v=1769011876","url":"https:\/\/safeandhardwarestore.com\/products\/mj","provider":"Safe \u0026 Hardware Store","version":"1.0","type":"link"}