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| Categories | Custom Metal Fabrication |
|---|---|
| Supply Ability: | 3000 units/month |
| Materials: | stainless steel, aluminium, etc. |
| Structure Type: | double-ring tubular structure |
| Packaging Details: | bubble wrap + cardboard box |
| Mounting Method: | clamp bolt connection |
| Place of Origin: | china |
| Function: | uniform electric field distribution |
| Delivery Time: | within 30 working days |
| Structure: | annular pipe |
| MOQ: | 50 pieces |
| Name: | custom annular grading ring |
| Process: | laser cutting, bending, etc. |
| Features: | Uniform electric field regulation |
| Brand Name: | custom |
| Fabrication Services: | OEM/ODM custom metal fabrication |
| Connection Method: | fixed with support brackets |
| Payment Terms: | T/T |
| Surface Treatment: | wire drawing, polishing, etc. |
| Company Info. |
| Guangzhou Lanxinwang Technology Co.,Ltd |
| Verified Supplier |
| View Contact Details |
| Product List |
Custom Grading Ring Metal Fabrication for Power Insulation Systems
A tubular grading ring is an electric field regulation component used in high-voltage electrical equipment. It features a continuous tubular ring structure and maintains its overall circular stability through support connectors. The product's smooth surface transitions help improve the electric field distribution around the equipment and reduce localized electric field concentration.
This structure offers excellent overall rigidity and installation stability. The ring's dimensions and support layout can be tailored to different equipment configurations, making it suitable for electrical protection and auxiliary installations in high-voltage systems.
| Material Types | Carbon Steel / Stainless Steel / Aluminium / Iron, etc. |
| Fabrication Method | Laser Cutting / Metal Bending / Tube Bending / Stamping / Machining / Welding / Riveting, etc. |
| Surface Treatment | Wire Drawing / Surface Grinding / Polishing / Electroplating / Anodising / Powder Coating / Baking Finish / High-temperature Coating / Sand Blasting / Enamelling / Pickling & Passivation, etc. |
| Cutting Precision | ±0.1 mm (±0.004 in) |
| Bending Range | 0.3-10 mm (0.012 - 0.394 in) |
| Pressure Tonnage Range | 35T - 150T |
| Pipe Bending Diameter Range | 6-200 mm (0.236 - 7.87 in) |
| Acceptable Drawing Formats | PDF / DWG / DXF / STEP (.step/.stp) / IGES (.iges/.igs) / SolidWorks files (.sldprt/.sldasm) |
| Production Support | Prototype to Mass Production |
Uses
Suitable for power engineering, power transmission and distribution facilities, and supporting systems for high-voltage equipment.
One-Stop Sheet Metal Solutions, From Concept to Production

FAQ
Q1: What is the difference between this tubular grading ring and a
standard ring-shaped structure?
A1: The hollow tube is formed as a single piece, offering higher
mechanical strength, a uniform profile, and stable electric field
regulation.
Q2: What is the purpose of the support connectors on the grading
ring?
A2: They secure the ring body to prevent deformation and ensure the
proper installation clearance between the grading ring and the
high-voltage equipment.
Q3: Can this grading ring be used with high-voltage equipment of
different specifications?
A3: Yes, the ring diameter, tube diameter, and support structure
are all adjustable to accommodate various types of high-voltage
equipment.
Q4: What factors should be considered when selecting sheet metal
materials?
A4: Strength, corrosion resistance, formability, the operating
environment, and cost should all be taken into account to achieve
optimal product performance and cost-effectiveness.
Q5: How does the bending radius affect the quality of sheet metal
fabrication?
A5: A proper bending radius helps prevent material cracking,
improves dimensional accuracy, and ensures consistent forming
quality.
Q6: How can deformation during sheet metal welding be minimized?
A6: By optimizing weld design, controlling the welding sequence,
and using specialized fixtures, welding deformation can be
effectively reduced and assembly accuracy improved.
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