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Product Overview
This lampshade frame combines a circular upper opening, curved connecting ribs, and a wide lower ring to create an open decorative structure. Its outline forms part of the lighting fixture’s appearance, while the connection areas must fit the surrounding assembly.
Custom production follows the approved design, with attention to rib profiles, ring dimensions, overall height, and visible surface quality.
Open Decorative Structure
Curved ribs define the frame’s shape while leaving open spaces between the structural elements.
Coordinated Ring and Rib Geometry
The upper ring, lower ring, and connecting ribs are produced to the specified proportions and profile.
316 Stainless Steel Material
Manufactured in the specified stainless steel grade, with the surface condition selected to suit the lighting design.
Custom Assembly Interfaces
Openings and contact surfaces can be machined where the drawing requires closer dimensional control.
Choice of Surface Appearance
Blasted, satin, or polished finishes can be evaluated according to the desired appearance and accessibility of the surfaces.
Manufacturing Process
Stage | Description |
01. Design Review | Review the frame profile, rib sections, ring geometry, attachment details, and visible surface requirements. |
02. Tooling & Wax Patterns | Prepare tooling and wax patterns according to the approved design, checking the shape and handling of the open frame. |
03. Investment Casting | Produce the stainless steel frame using the silica sol investment casting process. |
04. Cleaning & Dressing | Remove the casting gates, clean the component, and dress specified areas with attention to visible surfaces. |
05. Machining & Surface Finishing | Machine designated interfaces and apply the agreed finish, where required. |
06. Final Inspection | Check dimensions, frame profile, surface appearance, and other agreed acceptance criteria. |
Material & Surface Finish
The featured lampshade frame is made from 316 stainless steel. Material requirements are confirmed against the customer’s drawing and purchasing specification before production.
For decorative lighting components, the finish should be defined for both outward-facing surfaces and the less accessible areas between the ribs. A reference sample can help establish the required texture and appearance.
Surface Option | Appearance and Scope |
Blasted Finish | A matte texture, with the blasting method and required consistency agreed before production. |
Satin Finish | A subdued metallic appearance on specified accessible surfaces. |
Polished Finish | A brighter appearance, with the polishing scope defined around the frame geometry. |
Custom Finish | Evaluated against a reference sample or written surface specification. |
Final finishing arrangements depend on the frame geometry, surface access, and agreed visual standard.
Casting & Machining Capabilities
Zeren can review changes to the frame’s overall diameter, height, upper opening, lower ring, and rib arrangement based on customer drawings or 3D models.
Manufacturing review focuses on casting feasibility, shape control, finishing access, and the fit of the frame within the lighting assembly.
Customization may include:
Overall frame diameter and height
Upper opening and lower ring dimensions
Rib quantity, curvature, and cross-section
Connection features specified in the design
Machined contact faces or locating diameters
Surface texture and polishing scope
Any required drilling, tapping, or other machining is defined by the approved drawing.
Quality Control
Inspection addresses both assembly fit and decorative appearance. The agreed inspection plan identifies critical dimensions, visible surfaces, and acceptable variation in the frame profile.
Inspection items may include:
Overall diameter and height
Upper opening and lower ring dimensions
Ring roundness and alignment, where specified
Rib profile, spacing, and section dimensions
Distortion affecting assembly or appearance
Residual gate marks, sharp edges, and burrs
Surface finish consistency
Machined interfaces and material composition
Dimensional records and material verification requirements can be agreed during quotation. Where appearance is critical, an approved sample can serve as the visual reference for production.
Frames of this type can be developed for pendant lights, decorative lamp assemblies, and custom architectural lighting projects. The final application depends on the fixture design, attachment method, dimensions, and specified finish.
Zeren supplies the custom metal component according to the agreed specifications for integration into the customer’s lighting assembly.
Send us your drawings or 3D models, required quantities, material specification, and preferred finish for quotation. Please identify critical mounting dimensions and visible surfaces, and include an appearance reference where available.
Our team will review the frame geometry, casting requirements, machining details, and finishing scope before tooling and production.
