{"product_id":"liftmaster-mhs-medium-duty-slow-speed-commercial-door-operator-for-rolling-sheet-doors","title":"LiftMaster MHS Medium-Duty Slow-Speed Commercial Door Operator for Rolling Sheet Doors","description":"\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eLiftMaster MHS Medium-Duty Slow-Speed\u003c\/strong\u003e Commercial Door Operator is a wall-mounted door control solution designed for rolling sheet doors that require controlled, slow-speed operation in commercial environments. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis operator is recommended for small rolling sheet doors and grilles in medium-duty cycle applications where slower operating speed and a manual hoist are required. It delivers dependable performance for facilities with moderate daily usage. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe MHS series is engineered with solid-state logic control, mechanical limit settings, and emergency manual operation, making it a reliable choice for commercial and industrial door systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e \u003cstrong\u003eApplication\u003c\/strong\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• Rolling sheet doors and grilles \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• Medium-duty commercial use \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• Wall-mounted installation \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eRated Duty Cycle\u003c\/strong\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• Up to 12 cycles per hour \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• Up to 50 cycles per day \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eOperator Speed\u003c\/strong\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• 4–5 inches per second (slow speed) \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eLimit Settings\u003c\/strong\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• Mechanical \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eEmergency Operation\u003c\/strong\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• Floor-level manual emergency release sash chain \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• Automatic re-connect when tension is removed \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eControl \u0026amp; Programming\u003c\/strong\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• Solid-state medium-duty logic circuit board \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• Tactile programming buttons \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• Programmable timer-to-close: 5–60 seconds (5-second increments) \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eControls\u003c\/strong\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• 3-button wall control station \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• Push-button station (Open \/ Close \/ Stop) \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eElectrical \u0026amp; Drive\u003c\/strong\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• Voltage: 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• Drive reduction: \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• Bearings: Heavy-duty oil-filled bushings \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• Brake: None (slow-speed operator for light sheet doors)\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• All reduction sprockets drilled and pinned to shafts\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eCapacity\u003c\/strong\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eMaximum door area (approx.): \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• Aluminum grilles (24-ga): up to 320 sq. ft. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• Aluminum doors (22-ga): up to 275 sq. ft. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• Steel grilles (20-ga \/ 18-ga): up to 200 sq. ft.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eInstallation Limits\u003c\/strong\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• Maximum door height: 14 ft (standard) \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 square footage: 320 sq. ft.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eCompliance \u0026amp; Safety\u003c\/strong\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• Designed to meet UL 325 requirements \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• Compatible with LiftMaster monitored entrapment protection devices\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• Limited warranty: \u003cstrong\u003e2 years\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0724\/7000\/3878\/files\/LiftMaster-MHS-Product-Data-Sheet.pdf?v=1769452531\" target=\"_blank\" title=\"LiftMaster-MHS-Product-Data-Sheet\" rel=\"noopener\"\u003e\u003cspan\u003e\u003cstrong\u003eDownload PDF\u003c\/strong\u003e\u003c\/span\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":56078101348518,"sku":null,"price":1530.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/7000\/3878\/files\/liftmaster-mhs-medium-duty-slow-speed-commercial-door-operator_fc85d14a-3da2-4819-824b-0bf8761e6483.png?v=1769011764","url":"https:\/\/safeandhardwarestore.com\/products\/liftmaster-mhs-medium-duty-slow-speed-commercial-door-operator-for-rolling-sheet-doors","provider":"Safe \u0026 Hardware Store","version":"1.0","type":"link"}