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WANO designs and manufactures hardware systems for aluminum windows with the C groove profile interface. As a China-based C Groove Aluminum Window Hardware manufacturer, we supply hinges and stays, handles, multi-point locking, transmission and corner drive components engineered to work as one matched set. Since 2003, our range has been built around fabricators, window system brands, architectural hardware dealers and project clients, with R&D, tooling, production and testing at our Ningbo, Zhejiang facility in China.
This category covers the four opening families used most in aluminum residential and commercial fenestration: tilt-and-turn, inward casement, outward opening casement and top-hung. A single window series can therefore be equipped from one hardware family, with common handle and locking platforms across the range, reducing spare-part variety on site and simplifying installation training for fitting crews.
What We Supply in This Category
The hardware set is specified as a system, not as individual loose items. Our C groove supply scope includes:
- Hinge and stay assemblies for side-hung, top-hung and tilt sashes, sized to the sash geometry and opening angle.
- Handles with coordinated operating force, in square or rounded profiles and multiple grip thicknesses.
- Multi-point locking with corner drives, drive bars, keepers and locking points positioned to the sash height.
- Ventilation and safety components including restrictors, fall-prevention and anti-error features where the opening type requires them.
- Complementary accessories, keepers, gaskets, fixing screws and replacement parts packed with the main hardware.
Our C Groove Range and Application Fit
We offer four hardware series under the C groove interface. Each is configured for a specific opening behaviour and building context.
| Hardware series | Opening configuration | Where it fits | What we configure |
|---|---|---|---|
| C Groove Tilt & Turn 90/180° Hardware | Tilt ventilation plus side-hung opening at 90° or 180° | Apartments, hotels and commercial façades needing controlled ventilation | Tilt/turn sequencing, restrictor, locking layout, handle height and operating force |
| C Groove Casement 90/180° Hardware | Side-hung sash opening to 90° or 180° | Villas, offices and public buildings with full-width ventilation | Hinge and stay selection by sash size, opening limit, 3D adjustment range |
| C Groove Outward Opening Casement Hardware | Sash swinging outward from the frame | Projects specified for outward opening or restricted inward clearance | Stay loading, opening limit stop, handle orientation, corrosion finish |
| C Groove Top-Hung Window Hardware | Sash hung at the top and opened at the bottom | High-level windows, stairwells, bathrooms and utility rooms | Stay arm friction, opening angle limit, pole or handle operation |
All four series are part of our Window Hardware family. If your profile uses a different groove interface, we configure it separately under UC Groove Aluminum Window Hardware rather than adapting C groove components.
Groove Geometry and Profile Interface
C groove hardware only performs when the groove, screw boss positions and chamber clearances in the aluminum profile match the article set. Before we confirm a hardware schedule, we work from the profile drawing or a cut profile sample, checking groove width and depth, hardware groove position relative to the sash face, fixing screw points, and clearance available for the transmission bar inside the frame chamber.
We do not force compatibility by modifying C groove parts. Profiles with a different interface are evaluated with their own article sets so the locking and hinge geometry remain correct.
Materials, Finishes and Appearance Options
The range supports a broad set of finish and appearance requirements for projects with different interior languages and exposure conditions.
- Base components: die-cast and stamped parts with machined interfaces for hinges, locking points and drives.
- Surface treatment: powder coating, electrophoretic coating and anodizing, selected against building exposure.
- Handle design: customised profile, curvature, grip thickness and square or rounded styling.
- Brand marking: laser engraving, screen printing or die-cast integrated molding on visible surfaces.
Coastal and high-humidity projects are treated as a separate finish brief, because salt spray performance is determined by the coating system rather than by the base material alone.
Engineering and Configuration
Our 100-person R&D center configures each hardware system against the window, not against a catalogue default. Opening angles, hinge load ratings, 3D adjustment ranges, anti-error features, fall-prevention mechanisms and multi-point locking layouts are set during technical assessment.
For heavy sashes, tall or wide openings and narrow-profile systems, drive bar lengths, locking point positions and groove dimensions are adjusted so the sash seals evenly across its full perimeter. We work under OEM (manufacturing to your drawings or samples) and ODM (structural and performance development for your market position) models through eight steps: requirement consultation, drawing or sample confirmation, technical assessment and solution proposal, sample development and testing, pricing confirmation, mass production, quality inspection, then packaging and delivery.
Quality Assurance and Testing
Fifteen specialized laboratories at our 38,000 m² manufacturing base cover the full inspection chain, from incoming material inspection and first-article approval to in-process control and final pre-shipment verification. Core test capabilities applied to C groove window hardware include:
- Opening and closing cycle testing over tens of thousands of operating cycles.
- Load and tensile testing of hinges, stays and locking points.
- Torque testing to hold handle operating force within ergonomic limits.
- Salt spray resistance testing of the applied surface treatment.
Test reports and certification documentation are held for supplied products, and first-article inspection results form part of the acceptance record for project orders.
Installation, Adjustment and Maintenance
Hardware is supplied with fixing positions, screw specifications and adjustment references documented for the fitting line, so sashes can be aligned for compression and seal contact after glazing. Adjustment is completed at the hinge and stay points rather than by forcing the frame.
Operating and maintenance guidance covers handles, locking points and moving parts. Replacement components and accessory items are supplied with the main hardware order, and spare part identification by article reference supports repeat orders and after-sales replacement.
Information We Use to Configure Your Solution
To prepare a configuration and quotation, we work from the following project information:
- Profile drawing or cut sample with groove dimensions and screw boss positions.
- Window type, opening direction and required opening angle (90° or 180°).
- Sash width, height, weight and glazing build.
- Exposure conditions and required corrosion performance.
- Handle height, operation preference and locking point layout.
- Finish, colour, logo and packaging requirements.
- Quantity, delivery schedule and any project hardware specification.
We confirm the drawing or sample first, then issue the article set, technical proposal and pricing.
Packaging, Documentation and Delivery Scope
Individual unit boxes and outer cartons can be printed with your logo, brand name and product model details, with neutral or brand-exclusive packaging for different channel requirements. Certificates, warranty cards and packing lists can be issued under your identity, and sealing, cutting and heat-shrink packaging equipment inside our base protects hardware through transport.
Standard supply includes the configured hardware set, fixing accessories, installation references and product identification. Project-specific documents such as inspection records and test reports are prepared as part of the agreed delivery scope.
Frequently Asked Questions
Which aluminum profiles does your C groove hardware fit?
Our C groove hardware is built for aluminum window and door profiles with C groove geometry, covering tilt-and-turn, inward casement, outward opening casement and top-hung sashes. We check groove dimensions, screw boss positions and chamber clearance against your profile drawing or sample before confirming the article set. Profiles with a different interface are handled by our UC groove range.
Can you supply a complete hardware set for one window series?
Yes. Handles, hinges or stays, locking, transmission and corner drive components are configured as one matched set so the sash opens, tilts and locks as a system. Complementary accessories and fixing parts are bundled with the main hardware.
How are load capacity and sash size matched?
Load capacity is set per configuration. We select hinge load ratings, stay lengths, drive bar lengths and locking point positions against the sash weight, width, height and glazing build of your window, then verify the arrangement on the sample before mass production.
Do you produce under our brand with custom finishes?
We run OEM and ODM programmes. Handles can be customised in profile, curvature and grip thickness; finishes include powder coating, electrophoretic coating and anodizing; logos are applied by laser engraving, screen printing or die-cast integrated molding; and packaging can carry your model details, warranty cards and packing lists.
How is quality verified before shipment?
Fifteen in-house laboratories cover incoming material inspection, first-article approval, in-process monitoring and pre-shipment verification. Applied tests include salt spray resistance, opening and closing cycles, torque, and load and tensile testing of critical components, with test documentation held for supplied products.
What do you need to prepare a proposal?
Send the profile drawing or sample, window type and opening angle, sash dimensions and weight, glazing build, finish and branding requirements, quantity and schedule, and any hardware specification the project must meet. We confirm the drawing or sample first, then issue the configuration and pricing.
