Custom Cleaning Brush
5mm PA612 Tube Brush
5mm PA612 Tube Brush is built for Heat Exchanger Tube Internal Cleaning where the brush must enter or follow internal walls, threads, and blind holes. Head size, working length, stem flexibility, and fill are selected to loosen chips, oil, and coolant without losing access or control.
Product Features
5 mm head fits very small internal passages — The brush reaches narrow tubes, ports, and drilled bores.
PA612 filament absorbs less moisture than common PA66 — Bristle stiffness stays more consistent in wet cleaning.
Fine radial bristles clean the full circumference — The twisted-wire head contacts the complete bore wall.
Slim stem reduces blockage in restricted passages — The core remains narrow behind the bristle section.
Protected tip options reduce scratching — Looped or capped ends keep the wire core away from the surface.
Working length, stem flexibility, PA612 filament diameter, tip, handle, and connection can be customized.
Product Overview
5mm PA612 Tube Brush uses a working section shaped around the available opening, depth, and internal profile. It contacts internal walls, threads, and blind holes to remove chips, oil, and coolant; the access path and minimum clearance determine whether the brush needs a rigid stem, a flexible extension, a tapered head, or a stepped cleaning section. Brush diameter, working length, tip form, and stem flexibility must match the complete passage.
Key dimensions start with Brush head diameter 5 mm, Brush head length 60 mm, and Handle length 120 mm. This is a tube-style brush design for controlled contact inside internal passages. The specified interface is fixed. PA612 Nylon are the principal material directions in the current specification. The handle and head proportions should let the user reach the area while keeping brush pressure under control.
Technical Specifications
| Head diameter | 5 mm |
|---|---|
| Head shape | Round |
| Head length | 60 mm |
| Bristle material | PA612 |
| Handle/base material | Polypropylene (PP) |
| Handle length | 120 mm |
| Grip diameter | 8 mm |
| Connection | Fixed |
| Cleaning method | Dry Brushing / Wet Brushing |
| Applicable media | Water / Neutral Detergent / No Added Medium |
Application Areas
5mm PA612 Tube Brush is primarily mapped to Heat Exchanger Tube Cleaning. Before applying the brush to another process, verify the surface, the route for removed debris, and the final finish target.
- Use for Heat Exchanger Tube Internal Cleaning
- Match contact to surface risk: Minor
- Use with Water / Neutral Detergent / No Added Medium
- Confirm interface and clearance before production.
Selection Guidance
Structure fit
Match the tube & pipe bore brush geometry to internal walls, threads, and blind holes, the available access, and manual operation. Confirm Brush head diameter 5 mm, Brush head length 60 mm, and Handle length 120 mm against the complete working envelope before finalizing the brush.
Contact material
Choose from PA612 Nylon according to the behavior of chips, oil, and coolant, the surface sensitivity, and any wet, chemical, temperature, or hygiene requirements. Stiffness is not decided by the material name alone. Filament diameter, free trim length, and density also matter.
When to use another solution
For 5mm PA612 Tube Brush, use another cleaning method when chips, oil, and coolant cannot be released by controlled filament contact, when internal walls, threads, and blind holes cannot tolerate the selected contact material, or when the access path prevents safe engagement and residue removal.
Customization Options
| Brush Head Diameter (mm) | 5 |
|---|---|
| Brush Head Length (mm) | 60 |
| Handle Length (mm) | 120 |
| Handle Grip Diameter (mm) | 8 |
| Bristle Material | PA612 Nylon |
| Handle Material | Polypropylene PP |
| Mounting / Interface | Fixed |
| Grip Style | Straight Handle |
| Color | PANTONE 300 C Blue |
| Logo Process | Screen Printing |
| Surface Treatment | Textured |
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PA612 Nylon
PA612 Nylon is selected from its stiffness, recovery, wear, wet-service, chemical, and temperature behavior.
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