- All
- Product Name
- Product Keyword
- Product Model
- Product Summary
- Product Description
- Multi Field Search
| Quantity: | |
|---|---|
SEDULOUS
Place Of Origin: Zhejiang, China Sample: Available
MOQ: 500 OEM: Available
Port: Ningbo/Shanghai Supply Ability: 100000 Pieces Per Month
Payment Terms: T/T 30% as deposit, and 70% balance before delivery
After-Sale Service: Online technical support, return and replacement
Lead Time:
Quantity (sets) | 500 | 501-1000 | >1000 |
Lead time (days) | 25 | 30 | To be negotiated |
Production Process
Material Preparation
Solid brass rods or bars are selected based on required specifications.
The raw material is cut into suitable lengths for processing.
CNC Turning / Machining
The cut brass pieces are fed into a CNC lathe.
The basic knob shape (cylindrical head and stem) is formed through precision turning.
Knurling
The cylindrical surface of the knob head undergoes knurling, where a patterned roller tool is pressed into the surface to create the crosshatch texture.
This step improves grip and adds decorative detail.
Drilling and Threading
A hole is drilled at the bottom of the stem to accommodate a screw.
Internal threads are cut if needed, or the stem is shaped to accept a mounting screw.
Deburring and Polishing
The knob is carefully deburred to remove any sharp edges or metal burrs.
It is then polished to smooth the surface and enhance the finish.
Surface Finishing
A brushed, satin, or antique finish is applied based on customer requirements.
Optional surface treatments may include clear coating, lacquering, or electroplating for added protection and color variation.
Inspection and Quality Control
Each knob undergoes inspection for size accuracy, surface finish, knurling sharpness, and thread quality.
Packaging
The finished knobs are cleaned, packed in protective materials, and labeled for shipping.
Certificates
Place Of Origin: Zhejiang, China Sample: Available
MOQ: 500 OEM: Available
Port: Ningbo/Shanghai Supply Ability: 100000 Pieces Per Month
Payment Terms: T/T 30% as deposit, and 70% balance before delivery
After-Sale Service: Online technical support, return and replacement
Lead Time:
Quantity (sets) | 500 | 501-1000 | >1000 |
Lead time (days) | 25 | 30 | To be negotiated |
Production Process
Material Preparation
Solid brass rods or bars are selected based on required specifications.
The raw material is cut into suitable lengths for processing.
CNC Turning / Machining
The cut brass pieces are fed into a CNC lathe.
The basic knob shape (cylindrical head and stem) is formed through precision turning.
Knurling
The cylindrical surface of the knob head undergoes knurling, where a patterned roller tool is pressed into the surface to create the crosshatch texture.
This step improves grip and adds decorative detail.
Drilling and Threading
A hole is drilled at the bottom of the stem to accommodate a screw.
Internal threads are cut if needed, or the stem is shaped to accept a mounting screw.
Deburring and Polishing
The knob is carefully deburred to remove any sharp edges or metal burrs.
It is then polished to smooth the surface and enhance the finish.
Surface Finishing
A brushed, satin, or antique finish is applied based on customer requirements.
Optional surface treatments may include clear coating, lacquering, or electroplating for added protection and color variation.
Inspection and Quality Control
Each knob undergoes inspection for size accuracy, surface finish, knurling sharpness, and thread quality.
Packaging
The finished knobs are cleaned, packed in protective materials, and labeled for shipping.
Certificates
