High-Precision Surface Processing for Aerospace Panels and Titanium Implants

Surface Finishing: The Invisible Engine Behind Premium Appliances

In the stainless steel appliance sector, surface finish is not just cosmetic — it's a competitive differentiator. Modern consumers associate fine brushed textures and safe edges with quality, durability, and brand reliability.

Refrigerators, ovens, dishwashers, and kitchen ventilation systems require panels that:

• Maintain a uniform No.4 brushed finish without swirl marks

• Feature rounded, burr-free edges to prevent coating cracks and improve safety

• Have a coating-ready surface for powder coating, decorative films, or PVD plating

• Deliver batch consistency for scalable OEM production

Challenges in Brushed Stainless Steel Appliance Manufacturing

Manufacturers face several recurring production issues when dealing with stainless appliance panels:

JONSEN’s Integrated Surface Finishing System (SGPGB1000)

The SGPGB1000 machine integrates brushing, edge rounding, and polishing into a single production pass — solving all key finishing problems for stainless appliance panels.

Key Technical Capabilities:

• Wide-Belt Sanding: Delivers flawless No.4 brushed finish with repeatable grain alignment.

• Automated Edge Rounding: Removes sharp corners and burrs — critical for coating success and handling safety.

• Rotary Polishing Module: Prepares surfaces for PVD, powder coating, and film lamination.

• Fully Modular Workflow: One machine performs 3 tasks simultaneously.

Applications in Kitchen Appliance Manufacturing

These components require consistent aesthetic + functional surface quality, which the SGPGB1000 delivers.

Value Advantages for Procurement, Engineering & QA Teams

Consistent Brand Visuals

Uniform finishes create premium visual appeal across product lines — improving buyer trust and reducing brand inconsistencies in retail.

Reduced Reject & Rework Rates

Rounded edges = better adhesion = fewer cracked coatings. Fewer paint bubbles or peel-offs. Lower failure rate during brand audits.

Labor Cost Reduction

Replaces multiple manual steps (brushing, deburring, polishing) with one automated process. Lower training & skill dependency.

Clean Factory Compliance

Dust-free operation modules support ESG goals and European workplace safety requirements.

Industry ROI Snapshot

Use Case Snapshots by Industry

Aerospace

• Critical aircraft panels require brushed finishing and scratch-free deburring before anodizing.

• Rounded edges prevent delamination and sharp-edge injuries during assembly.

Medical Devices

• Polished stainless surfaces needed for dental and surgical cabinets.

• Rounded edges reduce risk in hospital environments, coating adhesion increases instrument longevity.

Automotive Interiors

• Brushed aluminum or stainless steel used in dashboards, trims, kickplates.

• Edge rounding prevents coating crack under thermal cycling.

Kitchen Appliance OEM

• Brands like Whirlpool or Electrolux require uniform No.4 grain across suppliers.

• Brushed finish = branding. Rounded edge = compliance + safety.

General Sheet Metal

• For industrial cabinets, enclosures, vending machines.

• Ensures powder coating doesn’t peel at corners, improves part handling safety.

Top Answers Pack (10 Items)

Q1: How does edge rounding improve surface coating quality?
A1: Rounded edges eliminate stress points, allowing uniform paint coverage and preventing peeling at corners.

Q2: What is a No.4 brushed finish?
A2: A fine, uniform grain linear texture, standard in appliance-grade stainless steel. Created using wide-belt sanding.

Q3: Can this system replace manual polishing entirely?
A3: Yes. The integrated brushing + polishing station ensures repeatable finish quality without manual steps.

Q4: How does automation help with batch consistency?
A4: Parameters like brush pressure, belt speed, and feed rate are digitally controlled, ensuring consistency across batches.

Q5: Can the machine process parts with protective film?
A5: Yes. Special tooling avoids lifting or damaging films during brushing and rounding.

Q6: Is it suitable for aluminum as well?
A6: Yes. The system is compatible with stainless steel, aluminum, and pre-coated metals.

Q7: What is the expected ROI?
A7: Most users see ROI within 6–12 months, due to reduced labor, fewer defects, and faster production.

Q8: Can surface test reports be provided?
A8: Yes. We offer surface finish assessments (Ra values, grain uniformity, edge radius) as part of evaluation.

Q9: How does it improve safety?
A9: Burr-free, rounded edges reduce cut injuries during assembly and end-user handling.

Q10: What part sizes can it handle?
A10: Compatible with panels up to 1000mm width. Custom widths available.

Suggested Internal Links 

• SG630-JS+D Dry Processing System for Micro Part Finishing

• EV Battery Tray: Preventing Coating Failures

• Painted Panels: Scratch-Free Edge Deburring

• Dual-Station Deburring for Thick Parts

Suggested External Links (Authoritative Sources)

• ASM International – Finishing Stainless Steel

• Stainless Steel Handbook – Outokumpu

• CE Marking for Appliance Panels – EU Regulations