Door Hardware

Grinding and polishing robots are one of many types of modern industrial robots. Used to replace traditional manual grinding and polishing products, including surface grinding, corner deburring, weld grinding, inner hole deburring, hole thread processing, etc.

Kingstone robotics polishing equipment can provide automated solutions through non-standard designs based on customer product needs, stabilizing the controllability of customer product quality and efficiency.

Door pull handles grinding

Door pull handles grinding

Door stopper

Door stopper

Hanging rail grinding

Hanging rail grinding

Lock grinding

Lock grinding

Door mirror grinding

Door mirror grinding

Automation solutions

Automation solutions

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You can contact us through a message using the form that you will find below.

Door Hardware

Door Hardware

In modern residential and commercial interiors, furniture hardware components such as door handles, stoppers, rails, and locks serve as both functional supports and design elements. Whether they are brushed stainless door pulls or polished mirrored panels, these details shape user experience and product durability.

Kingstone Robotics delivers fully integrated robotic surface finishing solutions tailored for furniture hardware manufacturers. Our systems combine adaptive grinding, precision polishing, and micro-deburring in scalable workcells, supporting high-mix product lines and elevated design standards.


Our Integrated Automation Solutions Include:

  • Robotic Grinding Stations for Profiles, Edges & Welds
  • Multi-Surface Polishing Units for Tubes, Knobs, and Cast Parts
  • Flexible Deburring Cells for Small Lock Mechanisms and Hinges
  • CNC-Guided Buffing Stations for Long Rails and Tubular Fixtures
  • Vision-Based Systems for Complex Geometry Recognition
  • Dust-Controlled Workcells for Clean Finishing Environments
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Polishing, Grinding, and Deburring in Furniture Hardware Manufacturing

Functional hardware used in doors, cabinetry, rails, and furniture mirrors must satisfy more than mechanical fit—they must feel smooth, look elegant, and last under frequent use. Polishing removes surface inconsistencies, grinding corrects form and welds, and deburring ensures edges are clean and safe for handling.

With automation, manufacturers can meet modern architectural finish standards (brushed, satin, chrome, matte, mirror) without relying on labour-intensive manual work.

What is Polishing?

Polishing improves both the appearance and touch of visible surfaces. In furniture hardware, it’s used on stainless steel handles, chrome stoppers, anodised rails, and aluminum trims to achieve uniform gloss, reflectivity, or brushing patterns. It also prepares surfaces for coatings and increases corrosion resistance.

What is Grinding?

Grinding shapes the part by removing excess material or imperfections. It’s commonly applied to welded pull handles, stamped mirror frames, or assembled door rails. Grinding ensures the uniform profile and flatness required for perfect fit and aesthetics.

What is Deburring?

Deburring removes sharp edges, small projections, or machining remnants that are hazardous or visually disruptive. It is critical in lock mechanisms, brackets, stops, and fittings, improving assembly, functionality, and safety. Automation ensures edge uniformity across batches.

Automation in Surface Finishing is Applied to Furniture Hardware Including:

  • Tubular and flat door handles (push/pull)
  • Stainless or brass door stoppers
  • Wall-mounted and wardrobe hanging rails
  • Mechanical lock bodies, cover plates, and knobs
  • Decorative mirror frames and mirrored door panels
  • Hinges, brackets, and surface-mounted fittings

Kingstone Robotics Project Cases

1. Door Pull Handles Grinding

1. Door Pull Handles Grinding

2. Door Stopper Finishing

2. Door Stopper Finishing

3. Hanging Rail Grinding

3. Hanging Rail Grinding

The Role of Automation in Surface Finishing

Door Hardware

Polishing Automation

Delivers consistent gloss, grain orientation, and finish depth. Key for consumer-facing parts such as handles, knobs, and mirrored frames.

Door Hardware

Grinding Automation

Prepares structural parts with clean weld removal, precise form, and consistent texture. Ideal for tubular hardware, rails, and welded brackets.

Door Hardware

Deburring Automation

Ensures smooth, safe, and fitting-ready edges for small and medium metal components like stoppers and locks.

Benefits of Automation in Automotive Surface Finishing

Why Automate?

Manual surface finishing processes are labor-intensive, time-consuming, and prone to inconsistencies. Automation addresses these challenges by providing:

1. Flawless Aesthetic Quality, Batch After Batch

Surface consistency is vital in architectural fittings, especially when hardware appears in multiples across a space. Automated polishing and grinding deliver uniform brightness, brushing lines, and smooth curves.

Applicable to:

  • Commercial door handle collections
  • Modular mirrored cabinets
  • High-end residential fittings

2. Faster Cycle Times and Higher Productivity

Manual finishing is slow and often inconsistent. Kingstone’s robotic systems can handle multiple parts per cycle with fast changeovers, enabling continuous operation while maintaining quality.

Ideal for:

  • OEM/ODM suppliers of bathroom and kitchen fittings
  • Furniture factories with fast-changing SKUs
  • High-throughput lock and hardware manufacturers

3. Edge Precision and Safety Compliance

Sharp or poorly finished parts lead to quality complaints and safety risks. Robotic deburring ensures smooth edges that meet industry safety and usability standards, reducing inspection and rework effort.

Critical for:

  • Door knobs and stoppers touched frequently
  • Sliding locks and fittings for soft-close doors
  • Accessories used in hospitality or public spaces

4. Improved Durability and Corrosion Resistance

Even minor inconsistencies in surface finish can lead to early corrosion or wear. Robotic finishing prepares parts perfectly for electroplating, powder coating, or anodising—extending product life.

Benefits:

  • Cleaner plating adhesion for water-exposed parts
  • Reduced failure rate in outdoor-installed hardware
  • Premium feel maintained over time

5. Cost-Efficient and Scalable Finishing

Kingstone systems are designed for flexible deployment—from small cell-based workstations to full-line integration. This allows manufacturers to upgrade part or all of their production for better ROI, less waste, and lower labour costs.

Perfect for:

  • Small-batch production with high quality demands
  • Scaling up repetitive processes in lock or rail lines
  • Meeting custom finishing requests with minimal manual adjustment

6. Compatibility with Mixed-Material and Complex Part Designs

Modern furniture hardware often combines metals, plastics, and composites—sometimes within a single component. Robotic finishing systems can adapt tool pressure, speed, and contact path in real time, handling material transitions and intricate geometries with precision that manual methods can’t replicate.

Suitable for:

• Handles with metal cores and polymer shells
• Decorative hardware with recessed or contoured features
• Multi-surface parts requiring differentiated polish zones

1. Door Pull Handles Grinding

1. Door Pull Handles Grinding

Robotic Configuration:

  • Six-axis robotic arms equipped with adaptive grinding tools to accommodate various handle designs.
  • Integration with vision systems for precise alignment and consistent material removal.
  • Customizable end-effectors to handle different materials, such as stainless steel, brass, or aluminum.

Process Integration:

  • Automated grinding of door pull handles to remove casting marks, weld seams, and surface imperfections.
  • Preparation of surfaces for subsequent polishing, coating, or assembly processes.
  • Real-time monitoring of grinding parameters to ensure quality and consistency.

Key Benefits:

  • Enhanced surface finish and uniformity across all door pull handles.
  • Increased production efficiency and reduced manual labor.
  • Improved worker safety by minimizing exposure to dust and repetitive tasks.

Applications:

  • Commercial and residential door pull handles made from various metals.

Get The Quote

2. Door Stopper Finishing

2. Door Stopper Finishing

Robotic Configuration:

  • Compact robotic systems with precision polishing tools suitable for small components.
  • Adaptive control systems to handle varying door stopper designs and materials.
  • Enclosed work cells with integrated safety features.

Process Integration:

  • Automated finishing of door stoppers to achieve desired surface finishes.
  • Removal of surface defects and preparation for coating or assembly.
  • Inline inspection systems to ensure quality standards are met.

Key Benefits:

  • Consistent and high-quality surface finishes on door stoppers.
  • Increased production throughput and efficiency.
  • Reduced reliance on manual finishing processes.

Applications:

  • Magnetic and mechanical door stoppers used in various settings.

Get The Quote

3. Hanging Rail Grinding

3. Hanging Rail Grinding

Robotic Configuration:

  • High-precision robotic arms with programmable grinding paths to accommodate long and complex rail designs.
  • Integration with CNC systems for seamless operation and control.
  • Safety enclosures with dust and noise reduction features.

Process Integration:

  • Automated grinding of hanging rails to remove weld seams, casting marks, or surface irregularities.
  • Preparation of surfaces for polishing, painting, or coating processes.
  • Real-time monitoring and adjustment of grinding parameters for optimal results.

Key Benefits:

  • Improved surface quality and uniformity of hanging rails.
  • Increased production throughput and consistency.
  • Reduced manual labor and associated costs.

Applications:

  • Clothing and towel hanging rails in residential and commercial furniture.

Get The Quote

4. Lock Component Grinding

4. Lock Component Grinding

Robotic Configuration:

  • Robotic grinding systems equipped with compliant tools to handle intricate lock geometries.
  • Integration with vision systems for precise detection and removal of burrs.
  • Programmable paths to adapt to different lock designs and sizes.

Process Integration:

  • Automated grinding of lock components to remove sharp edges and burrs resulting from casting or machining.
  • Preparation of components for assembly, coating, or further processing.
  • Inline inspection to ensure all burrs are effectively removed.

Key Benefits:

  • Enhanced safety and functionality of lock components.
  • Improved fit and finish of assembled locks.
  • Reduced risk of defects and rework.

Applications:

  • Locks used in doors, cabinets, and other furniture hardware.

Get The Quote

5. Door Mirror Grinding

5. Door Mirror Grinding

Robotic Configuration:

  • Precision robotic polishing systems with fine abrasive tools suitable for glass and mirror components.
  • Adaptive force control to prevent over-polishing or damage to delicate surfaces.
  • Integration with handling systems for efficient loading and unloading.

Process Integration:

  • Automated grinding of door mirrors to achieve smooth, high-gloss finishes.
  • Removal of surface imperfections and preparation for branding or packaging.
  • Quality control checks to ensure consistent finish across all units.

Key Benefits:

  • Enhanced aesthetic appeal and clarity of door mirrors.
  • Increased production efficiency and consistency.
  • Reduced manual labor and potential for human error.

Applications:

  • Mirrored doors and panels used in wardrobes, cabinets, and other furniture pieces.

Get The Quote

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You can contact us through a message using the form that you will find below.

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