
Project Overview
A U.S. industrial customer was looking for a custom brush solution for their equipment but only had basic dimensional requirements available.
Instead of selecting a standard brush, the customer needed a specially designed Nylon Coil Brush that could fit accurately inside the equipment and maintain consistent cleaning performance.
Based on the provided specifications, Fortex Brush supported the complete development process, including technical evaluation, engineering drawing, sample manufacturing, quality inspection, and air shipment.
This project highlights how a customized coil brush can be developed from initial requirements into a ready-to-test industrial solution.
| Project Item | Details |
|---|---|
| Customer Market | US Market |
| Customized Product | Custom Inward Nylon Coil Spring Brush |
| Main Requirement | Overall Length (A): 75 mm Strip Width (B): 5 mm Filament: Ø0.3 mm Nylon Outer Diameter (D): 65 mm Inner Diameter (E): 20 mm |
| Estimated Production Time | Within 20 days |
| Actual Production Time | 7 days |
| Development Process | Requirement Review → Factory Drawing→ Cost Confirmation → Formal Quotation → Customer Approval → Sample Production → Inspection → Air Delivery |
| Final Result | Samples completed, inspected and delivered |
The Customer’s Challenge
The central task was converting several separate measurements into a dependable Custom Nylon Coil Brush that would fit directly into the customer’s equipment. Fit and brushing performance depended on the coil diameter, brush length, strip width, filament direction, and material thickness. Even a minor mistake could lead to uneven contact, excessive resistance, or failure during installation. A price alone was not enough; before considering a larger order, the customer needed engineering confirmation, a clear design reference, and a physical sample.
- Accurate Installation Fit: The 65 mm outer diameter, 20 mm inner diameter, and 75 mm length had to work together so the finished brush would match the available equipment space without distortion.
- Stable Helical Construction: The 5 mm strip and 0.3 mm nylon filament needed to be formed into a consistent inward-facing coil with uniform spacing and dependable filament retention.
- Low-Risk Sample Validation: Because no finished drawing or existing sample was available, the customer required one trial unit to check fit, contact, and handling before considering production quantities.
Our Custom Solution
1. Requirement Analysis
2. Engineering Drawing

3. Customer Review & Feedback
4. Sample Production


5. Factory Inspection
Before packing, the quality team inspected the Custom Nylon Coil Brush against the approved drawing. They checked the main diameters and overall length, then examined roundness, winding consistency, filament direction, and the metal strip. Special attention was given to filament distribution and retention because loose sections or uneven density could create inconsistent contact. Inspectors also reviewed the coil ends for sharp edges, deformation, or damage that might affect installation. Photographs and measurements were recorded for traceability. These checks reduced the risk of receiving a sample that looked acceptable but could not be evaluated properly in the customer’s equipment.
Delivery & Results
Protected Sample Packaging
A formed coil brush can be affected by compression, impact, or rough handling in international transit, so packaging was treated as part of sample quality. The finished custom nylon spiral brush was cleaned, protected from abrasion, and positioned to prevent its circular profile from being crushed inside the carton. Cushioning limited movement around the ends and metal backing, while a rigid outer package added protection without unnecessary weight. This method preserved the dimensions established during forming and inspection. It also allowed the customer to assess the sample in the same condition in which it left our factory instead of correcting avoidable transit damage.


Prompt Sample Dispatch
Once inspection and packaging were complete, our team prepared the export documents and arranged air shipment to the United States. Air delivery was selected because rapid evaluation of an engineering sample was more valuable than the lower cost of slower transport. The estimated transit period was 7–12 days, subject to flight availability and customs processing. We checked the address before release and shared tracking information after dispatch. By coordinating the production finish date, paperwork, packing, and carrier handover, we moved the Custom Nylon Coil Brush from the workshop into international transit without unnecessary waiting.
Active Logistics Follow-Up
Our service did not stop when the parcel left the factory. We monitored tracking updates, checked progress through key transit points, and kept the customer informed of meaningful status changes. If a carrier exception, address query, or customs request had appeared, our sales representative would have coordinated the response with the buyer and logistics provider. This follow-up is valuable for samples because technicians or equipment time may already be reserved for testing. Maintaining visibility helped the customer plan for receipt of the Custom Nylon Coil Brush and allowed any delivery issue to be addressed before the expected arrival date passed.
Current Project Result
Our Service & Manufacturing Capabilities
- Requirement-to-Drawing Support: Translate customer specifications into a clear, manufacturable product drawing.
- Custom Sample Manufacturing: Produce non-standard coil structures, filament configurations and dimensions for equipment-specific requirements.
- Factory Quality Control: Inspect dimensions, winding consistency, filament condition and structural finishing before shipment.
- End-to-End Project Service: Coordinate requirement clarification, drawing approval, quotation, production, inspection, shipping and logistics follow-up through one contact.
Related Brush Solutions & Custom Inquiry
Different machines may require a related brush format rather than the same coil configuration.Buyers comparing options can review our outside coil brush for external surface contact, or an inward-facing coil configuration for cleaning internal cylindrical surfaces.Selecting the right structure depends on the mounting space, contact direction, operating speed, surface material, and required brushing action. Send us your dimensions, nylon grade or filament size, strip material, quantity, application, and target destination. We can assess manufacturability and prepare a drawing and quotation for your Custom Nylon Coil Brush project.
FAQ
Can Fortex produce custom coil brushes based on customer dimensions?
Yes. Fortex develops custom coil brushes based on drawings, measurements, materials, and specific equipment requirements.
What applications are suitable for Nylon Coil Brush products?
They are commonly used for internal cleaning, material handling equipment, production lines, and industrial surface maintenance.
Can customers test samples before placing bulk orders?
Yes. Sample production allows customers to confirm installation fit and cleaning performance before moving to larger production orders.