--- title: [Overview] The New Slim-Integrated SI.1 Concealed Hinges description: Our new concealed hinge solution – the Slim-Integrated Series Appliance Hinge (SI.1 Hinge) – provides high-end appliance manufacturers with valuable features: image: https://blog.weberknapp.com/hubfs/IMG_1138.jpg --- 441 Chandler Street, Jamestown, NY 14701 [sales@weberknapp.com](mailto:sales@weberknapp.com) [800.828.9254](tel:800.828.9254) [![WeberKnappLogo_white (1)](https://blog.weberknapp.com/hs-fs/hubfs/WeberKnappLogo_white%20(1).png?width=12000&height=2033&name=WeberKnappLogo_white%20(1).png "WeberKnappLogo_white (1)")](http://weberknapp.com) - [Capabilities](https://www.weberknapp.com/capabilities/) - [Our Process](https://www.weberknapp.com/our-process/) - [Vertical Integration](https://www.weberknapp.com/vertical-integration/) - [Our Products](https://www.weberknapp.com/products/) - [Lift Gate Product Line](https://info.weberknapp.com/liftgate) - [Office Ergonomics](https://www.weberknapp.com/office-ergonomics/) - [Fridge Hinges](https://www.weberknapp.com/refrigerator-hinges/) - [View All Products](https://www.weberknapp.com/products/) - [Industries](https://www.weberknapp.com/ezoffice-ergonomics/) - [Hospitality](https://www.weberknapp.com/hospitality-lid-door-lift-assist/) - [Outdoor & Professional Kitchen](https://www.weberknapp.com/outdoor-professional-kitchen-commercial-appliance-hinges/) - [SI.1 Fridge Hinge](https://www.weberknapp.com/si-1hinge/) - [SI.2 Wine Cooler Hinge](https://info.weberknapp.com/si-2hinge) - [Heavy-Duty Industrial Hinges](https://www.weberknapp.com/heavy-duty-industrial-hinges/) - [Machining Capabilities](https://www.weberknapp.com/machining-capabilities/) - [Ergonomics](https://www.weberknapp.com/ergonomics/) - [Smokin' Ugly](https://smokinugly.com/) - [Shop Now!](https://smokinugly.com/) - [The Over-Easy Retrofit Hinge](https://info.weberknapp.com/over-easy-big-green-egg-replacement-hinge) - [About](https://www.weberknapp.com/about/) - [About Us](https://www.weberknapp.com/about/) - [Facilities](https://www.weberknapp.com/facilities/) - [Our Expertise](https://www.weberknapp.com/our-expertise/) - [Our Story](https://www.weberknapp.com/about/our-story/) - [Historical Timeline](https://www.weberknapp.com/historical-timeline/) - [Vectis](https://www.weberknapp.com/spring-assist-hinges/) - [Specifications & Pricing](https://www.weberknapp.com/vectis-pricing/) - [DYO App](https://www.weberknapp.com/vectisdyo/) - [Resources](https://info.weberknapp.com/motion-control-solutions-resources-hub) - [LiftGate Calculator](https://www.weberknapp.com/liftgate/) - [Blog](https://blog.weberknapp.com/) - [Contact](https://www.weberknapp.com/about-us/contact-us/) - [Careers](http://atpscan.global.hornetsecurity.com/index.php?atp_str=n-ghlh06aXuvPtF37gfjry_zFdbLtNiUSpxAoGzFbQ93O9wpbblQ6huXIjfViEObojQ9jJlgUnWSNngKfYtlovdpQPBe00VWcnTY_x29-5bUdp-VX2dTNZDDsDB4RTa8SfuLot8jWoFJ3kjVzYyppEUk2QptRckMQVCXOYlQxuTaZ-N5eis-gpdFo0bUg_edoITYKhwzSwldSVPp0tW4oawmVPR9swuGB9U37cE3XLs0k_07-0wP_8xFatAgUhfzuzZMpuMAI1J002QwMe25intdkvMJCixI-E-b3ndAUICHqNWOwOVG4ucy3DE_GMGpqSZ2UyM6OiMmiUslBnOCHtgm47ojOjojekB-eI-YylAjsm3myVRoew&) - [Events](https://www.weberknapp.com/trade-shows-and-events/) - [Ask An Engineer](https://info.weberknapp.com/ask-an-engineer) - [Capabilities](https://www.weberknapp.com/capabilities/) - [Our Process](https://www.weberknapp.com/our-process/) - [Vertical Integration](https://www.weberknapp.com/vertical-integration/) - [Our Products](https://www.weberknapp.com/products/) - [Lift Gate Product Line](https://info.weberknapp.com/liftgate) - [Office Ergonomics](https://www.weberknapp.com/office-ergonomics/) - [Fridge Hinges](https://www.weberknapp.com/refrigerator-hinges/) - [View All Products](https://www.weberknapp.com/products/) - [Industries](https://www.weberknapp.com/ezoffice-ergonomics/) - [Hospitality](https://www.weberknapp.com/hospitality-lid-door-lift-assist/) - [Outdoor & Professional Kitchen](https://www.weberknapp.com/outdoor-professional-kitchen-commercial-appliance-hinges/) - [SI.1 Fridge Hinge](https://www.weberknapp.com/si-1hinge/) - [SI.2 Wine Cooler Hinge](https://info.weberknapp.com/si-2hinge) - [Heavy-Duty Industrial Hinges](https://www.weberknapp.com/heavy-duty-industrial-hinges/) - [Machining Capabilities](https://www.weberknapp.com/machining-capabilities/) - [Ergonomics](https://www.weberknapp.com/ergonomics/) - [Smokin' Ugly](https://smokinugly.com/) - [Shop Now!](https://smokinugly.com/) - [The Over-Easy Retrofit Hinge](https://info.weberknapp.com/over-easy-big-green-egg-replacement-hinge) - [About](https://www.weberknapp.com/about/) - [About Us](https://www.weberknapp.com/about/) - [Facilities](https://www.weberknapp.com/facilities/) - [Our Expertise](https://www.weberknapp.com/our-expertise/) - [Our Story](https://www.weberknapp.com/about/our-story/) - [Historical Timeline](https://www.weberknapp.com/historical-timeline/) - [Vectis](https://www.weberknapp.com/spring-assist-hinges/) - [Specifications & Pricing](https://www.weberknapp.com/vectis-pricing/) - [DYO App](https://www.weberknapp.com/vectisdyo/) - [Resources](https://info.weberknapp.com/motion-control-solutions-resources-hub) - [LiftGate Calculator](https://www.weberknapp.com/liftgate/) - [Blog](https://blog.weberknapp.com/) - [Contact](https://www.weberknapp.com/about-us/contact-us/) - [Careers](http://atpscan.global.hornetsecurity.com/index.php?atp_str=n-ghlh06aXuvPtF37gfjry_zFdbLtNiUSpxAoGzFbQ93O9wpbblQ6huXIjfViEObojQ9jJlgUnWSNngKfYtlovdpQPBe00VWcnTY_x29-5bUdp-VX2dTNZDDsDB4RTa8SfuLot8jWoFJ3kjVzYyppEUk2QptRckMQVCXOYlQxuTaZ-N5eis-gpdFo0bUg_edoITYKhwzSwldSVPp0tW4oawmVPR9swuGB9U37cE3XLs0k_07-0wP_8xFatAgUhfzuzZMpuMAI1J002QwMe25intdkvMJCixI-E-b3ndAUICHqNWOwOVG4ucy3DE_GMGpqSZ2UyM6OiMmiUslBnOCHtgm47ojOjojekB-eI-YylAjsm3myVRoew&) - [Events](https://www.weberknapp.com/trade-shows-and-events/) - [Ask An Engineer](https://info.weberknapp.com/ask-an-engineer) ### Motion Control Engineering & Manufacturing Resources # \[Overview\] The New Slim-Integrated SI.1 Concealed Hinges Posted by [Weber Knapp](https://blog.weberknapp.com/author/weber-knapp) on Dec 20, 2022, 9:58:58 AM - [Tweet](https://twitter.com/share)   | Our new concealed hinge solution – the Slim-Integrated Series Appliance Hinge (SI.1 Hinge) – provides high-end appliance manufacturers with valuable features including: - Flush door panel mounting - Self-closing motion control design - Soft open stop - High cycle life - High load capacity - Strength and durability | | --- |   ![IMG_1138](https://blog.weberknapp.com/hs-fs/hubfs/IMG_1138.jpg?width=1200&height=800&name=IMG_1138.jpg) Designing for kitchen appliances is a challenge. There’s a long list of needs including safety, durability, strength, and functionality. Aesthetic appeal should also factor into the design. This is where concealed hinges open up a lot of possibilities – and they look good doing it.  Incorporating the right concealed hinge into your product design helps you create appliances that **exceed customer expectations for** performance and style, with sleek, modern design.   ## Introducing the SI.1 Series Appliance Hinge Weber Knapp’s new SI.1 Hinge provides high-end appliance manufacturers with a **long-lasting**, **feature-packed concealed hinge solution**.  Intended primarily as a hidden refrigerator door hinge, the SI.1 is a heavy-duty concealed hinge that takes your appliance design to the next level by integrating **high-performance functionality** with **high-class form**. Designed to work with built-in, panel-ready, and integrated doors, the [SI.1 Hinge](https://blog.weberknapp.com/hubfs/Slim-Integrated%20Series%20Appliance%20Hinges%20SI.1%20Hinge%20Sell%20Sheet-2.pdf) offers a number of features, including: - [Flush door panel mounting](https://blog.weberknapp.com/slim-integrated-concealed-hinges#door-panel) - [Self-closing motion control design](https://blog.weberknapp.com/slim-integrated-concealed-hinges#self-closing) - [Soft open stop](https://blog.weberknapp.com/slim-integrated-concealed-hinges#soft-open) - [High cycle life](https://blog.weberknapp.com/slim-integrated-concealed-hinges#high-cycle)  - [High load capacity](https://blog.weberknapp.com/slim-integrated-concealed-hinges#high-load) - [Strength and durability](https://blog.weberknapp.com/slim-integrated-concealed-hinges#strength)   Its slim design also allows the hinge to blend into the background of the appliance when the doors are open. *See the Slim Integrated Concealed Hinge in action:*       ### Flush Door Panel Mounting The [motion control design](https://blog.weberknapp.com/motion-control-hinge-solutions) of the SI.1 Hinge offers flush door panel mounting with a **narrow ⅛ inch reveal**.  This means the gap between the door panel and surrounding cabinetry is the smallest line possible. This helps create visual cohesion with a more appealing aesthetic.   ### Self-Closing Motion Control Design Concealed hinges with self-closing motion control are a great option for kitchens. Thanks to this design, a door left slightly ajar (at 60° or less) will close itself. Why is this important?   For starters, you don’t want customers to burn up compressors from making their fridges work overtime to cool their contents AND their kitchens.  Secondly, if they have children (or absent-minded adults) in their households, finding a door open when it shouldn’t be is extremely frustrating – and unsafe (think: a toddler climbing into the fridge). Having a soft-close hinge integrated into an appliance provides peace of mind on both fronts.   ### Soft Open Stop Some people open doors with little regard for noise or durability. Opening any door quickly, particularly one on a regular fridge, sometimes creates surprises, and not the funny kind. The fast swing out and sudden stop of a door may send shelf contents rattling or even falling. With a soft open stop hinge, it’s a smoother movement with a lot less noise… and nothing unexpected. There’s also no metal-on-metal scraping as with regular hinges, so the whole experience is less jarring.   ### High Cycle Life Our SI.1 Hinge is rated for at least 300,000 cycles, which means it can withstand a lot of use without failing. This is especially important in a kitchen, where the hinges are [used frequently](https://blog.weberknapp.com/heavy-duty-industrial-hinge-design-guidelines#useful-life). It’s also built to meet [**UL requirements**](https://www.ul.com/industries/products-and-components/appliances) (as part of a refrigerator system) when mounted to a full fridge.   ### High Load Capacity The SI.1 Hinge supports a high load capacity of 160 pounds per pair. Because these hinges support so much, you can design fridges to have larger shelves inside their door panels. This includes the weight of shelves with items loaded in them.  Considering the [average refrigerator weighs 250 pounds](https://prudentreviews.com/refrigerator-weight/), that should more than cover the weight-bearing needs for your appliance’s concealed hinge design. ### Strength and Durability Our SI.1 Hinges support heavy door panels without bending or breaking.  They are powder coated with a chip-resistant finish that also resists moisture and humidity, which makes them a great choice for kitchens. | ###### Maximum Specifications | ###### Hinge Materials | | --- | --- | | - Maximum Door Width = 30 inches - Maximum Door Weight = 160 pounds - Maximum Opening Angle = 110°     | - Powder-coated steel hinge arms and brackets  - Stainless steel turnings  - Engineered plastic spacers, bushings, and bumpers  - Food-safe grease  - Zinc plated hardware and spring |   ## The SI.1 Hinge: Revolutionizing Professional Kitchen Aesthetics The SI.1 hinge provides smooth, silent, simple, and reliable operation. Engineered to be reversible and available in multiple colors, the SI.1 Hinge is revolutionizing professional kitchen aesthetics and technology. Keep these considerations in mind while [designing your kitchen appliance](https://blog.weberknapp.com/hidden-door-hinge-design).  If the specifications above don’t match what you are looking for, we can make similar custom designs based on your manufacturer specifications. ### Learn More About Concealed Hinges Do you want to integrate concealed hinges in your next design? Get advice from one of our motion control experts:  [![ask an engineer - motion control design](https://no-cache.hubspot.com/cta/default/5515947/cae32db5-b50a-4510-b1e5-600a9c9a7e31.png)](https://cta-redirect.hubspot.com/cta/redirect/5515947/cae32db5-b50a-4510-b1e5-600a9c9a7e31) Topics: [Motion Control](https://blog.weberknapp.com/tag/motion-control), [Hinges](https://blog.weberknapp.com/tag/hinges), [Food Industry](https://blog.weberknapp.com/tag/food-industry), [kitchen](https://blog.weberknapp.com/tag/kitchen), [hospitality](https://blog.weberknapp.com/tag/hospitality) ### Join Our Monthly Email List! ### Recent Posts [![Weber Knapp - Intro to Motion Control and Counterbalancing for Product Design ](https://no-cache.hubspot.com/cta/default/5515947/0492cc45-8efa-41fa-b11d-78a4726592cb.png)](https://cta-redirect.hubspot.com/cta/redirect/5515947/0492cc45-8efa-41fa-b11d-78a4726592cb) ### Posts by Tag - [Motion Control (91)](https://blog.weberknapp.com/tag/motion-control) - [Design (81)](https://blog.weberknapp.com/tag/design) - [Hinges (77)](https://blog.weberknapp.com/tag/hinges) - [Ergonomics (70)](https://blog.weberknapp.com/tag/ergonomics) - [Applications (58)](https://blog.weberknapp.com/tag/applications) - [Engineering (45)](https://blog.weberknapp.com/tag/engineering) - [Industrial (35)](https://blog.weberknapp.com/tag/industrial) - [Safety (35)](https://blog.weberknapp.com/tag/safety) - [Counterbalance Hinge (34)](https://blog.weberknapp.com/tag/counterbalance-hinge) - [Manufacturing (33)](https://blog.weberknapp.com/tag/manufacturing) - [office equipment (32)](https://blog.weberknapp.com/tag/office-equipment) - [Aesthetics (31)](https://blog.weberknapp.com/tag/aesthetics) - [Counterbalances (30)](https://blog.weberknapp.com/tag/counterbalances) - [Lid Support (30)](https://blog.weberknapp.com/tag/lid-support) - [kitchen (29)](https://blog.weberknapp.com/tag/kitchen) - [Durability (28)](https://blog.weberknapp.com/tag/durability) - [Hinge (28)](https://blog.weberknapp.com/tag/hinge) - [Appliance (23)](https://blog.weberknapp.com/tag/appliance) - [Hospitality Furniture (21)](https://blog.weberknapp.com/tag/hospitality-furniture) - [hospitality (20)](https://blog.weberknapp.com/tag/hospitality) - [Vectis (18)](https://blog.weberknapp.com/tag/vectis) - [Counterbalance (17)](https://blog.weberknapp.com/tag/counterbalance) - [Cost (15)](https://blog.weberknapp.com/tag/cost) - [Employee Spotlight (14)](https://blog.weberknapp.com/tag/employee-spotlight) - [Food Industry (13)](https://blog.weberknapp.com/tag/food-industry) - [Gas Springs (12)](https://blog.weberknapp.com/tag/gas-springs) - [Lid (10)](https://blog.weberknapp.com/tag/lid) - [Medical Equipment (10)](https://blog.weberknapp.com/tag/medical-equipment) - [Finishing (9)](https://blog.weberknapp.com/tag/finishing) - [Springloaded (9)](https://blog.weberknapp.com/tag/springloaded) - [Center of Gravity (8)](https://blog.weberknapp.com/tag/center-of-gravity) - [Grill (8)](https://blog.weberknapp.com/tag/grill) - [Testing & Prototyping (8)](https://blog.weberknapp.com/tag/testing-prototyping) - [Uncategorized (8)](https://blog.weberknapp.com/tag/uncategorized) - [heavy duty hinge (8)](https://blog.weberknapp.com/tag/heavy-duty-hinge) - [standards & certifications (8)](https://blog.weberknapp.com/tag/standards-certifications) - [Hidden Hinges (7)](https://blog.weberknapp.com/tag/hidden-hinges) - [OSHA (7)](https://blog.weberknapp.com/tag/osha) - [Smoker (7)](https://blog.weberknapp.com/tag/smoker) - [News (6)](https://blog.weberknapp.com/tag/news) - [Push Cart (5)](https://blog.weberknapp.com/tag/push-cart) - [Services (5)](https://blog.weberknapp.com/tag/services) - [Smoker Grill (5)](https://blog.weberknapp.com/tag/smoker-grill) - [trade shows (5)](https://blog.weberknapp.com/tag/trade-shows) - [trends (5)](https://blog.weberknapp.com/tag/trends) - [High End Grill (4)](https://blog.weberknapp.com/tag/high-end-grill) - [Smokin' Ugly (3)](https://blog.weberknapp.com/tag/smokin-ugly) - [Supply Chain (3)](https://blog.weberknapp.com/tag/supply-chain) - [drop gate (2)](https://blog.weberknapp.com/tag/drop-gate) - [Book Lift Mechanism (1)](https://blog.weberknapp.com/tag/book-lift-mechanism) - [CNC Turning Services (1)](https://blog.weberknapp.com/tag/cnc-turning-services) - [Draw Bridge (1)](https://blog.weberknapp.com/tag/draw-bridge) - [Drum Smoker Accessories (1)](https://blog.weberknapp.com/tag/drum-smoker-accessories) - [Furniture (1)](https://blog.weberknapp.com/tag/furniture) - [Hestan (1)](https://blog.weberknapp.com/tag/hestan) - [Hotel (1)](https://blog.weberknapp.com/tag/hotel) - [IBS (1)](https://blog.weberknapp.com/tag/ibs) - [Installation (1)](https://blog.weberknapp.com/tag/installation) - [Laser Cutting (1)](https://blog.weberknapp.com/tag/laser-cutting) - [Tariffs (1)](https://blog.weberknapp.com/tag/tariffs) - [Torque (1)](https://blog.weberknapp.com/tag/torque) See all #### Weber Knapp Co. Copyright ©2025 All rights reserved [Privacy Policy](https://www.weberknapp.com/privacy) [Terms Of Use](https://www.weberknapp.com/terms-of-use) Transparency in Coverage [441 Chandler Street, Jamestown, NY 14701](https://www.google.com/maps?z=16&q=441+chandler+street,+jamestown,+ny+14701) 800.828.9254 [info@weberknapp.com](mailto:info@weberknapp.com) M-F 8am - 5pm We are trusted experts in motion control engineering and manufacturing. As a single source provider consistently striving for excellence, we aim to be an extension of your engineering team. - - - - ```json { "@context" : "https://schema.org", "@type" : "VideoObject", "contentUrl" : "https://5515947.fs1.hubspotusercontent-na1.net/hubfs/5515947/Updated%20Hinge%20action.mp4", "dateModified" : "2022-11-11T14:18:29.503Z", "duration" : "PT21.227S", "height" : 1080, "name" : "Updated Hinge action", "thumbnailUrl" : "https://api-na1.hubapi.com/filemanager/api/v3/files/thumbnail-redirect/91321444691?portalId=5515947&size=medium", "uploadDate" : "2022-11-11T14:15:00.570Z", "width" : 1920 } ```