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Middle Rollers, Flange Rollers, and Plastic Bearings

Precision Alignment & Corrosion-Free Rotation for PCB Lines In a horizontal conveyor system, tracking issues are the silent killers of throughput. QXY Machinery’s Middle Rollers and Flange Rollers are engineered to solve the “drifting” problem once and for all. Since 2008, we have specialized in replacing failure-prone metal bearings with high-performance engineering plastics. Our integrated plastic bearings eliminate rust-risk in acidic baths, ensuring your panels stay on center and your transmission stays smooth.

middle roller
35/36 Middle Roller in PCB Equipment
For PCB lines where boards tend to drift or jam, the 35/36 Middl...
flange roller
35/36 Flange Roller in PCB Equipment
Thin PCB and FPC panels can easily shift during wet-process conve...
middle roller
40/45 Middle Roller in PCB Equipment
Designed for intermediate support in PCB conveyor systems, this...
flange roller
35/36Flange Roller in PCB Equipment
When PCB edges lose their tracking path, even a small offset can s...
flange roller
40/45Flange Roller in PCB Equipment
Built for larger conveyor layouts, the 40/45 Flange Roller deliv...
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Plastic Bearing
This plastic bearing is designed for low-friction rotation in PC...
bearing
Customized Plastic Bearing
For non-standard PCB wet-process equipment, this custom plastic beari...
middle roller
45 Middle Roller in PCB Equipment
When high-speed PCB transfer leads to board tilt or sudden line...

Material Selection Guide

Eliminate Metal Contamination with Engineering Plastics Metal components don’t belong in a wet process bath. We utilize advanced polymers to ensure your rotation is frictionless and chemical-resistant:

  • PE & POM Plastic Bearings: Naturally self-lubricating. These bearings operate flawlessly in etching and stripping modules without the need for grease, preventing chemical bath contamination.
  • Anti-Drift Flange Rollers: Designed with raised edges to act as a physical guide. These rollers keep your substrate from “wandering” into the machine walls, even during high-speed transport.
  • High-Stability Middle Rollers: Engineered with tight radial runout tolerances (≤0.15mm) to provide consistent support across the entire width of the conveyor.

Industry Applications

  • Horizontal Etching & Developing: Standard metal bearings seize up in these zones. Our plastic-integrated rollers provide a maintenance-free rotation that extends equipment uptime.
  • High-Speed Rinsing Modules: Prevents hydroplaning and board misalignment. The flanged design ensures that even ultra-thin boards remain perfectly tracked during high-pressure sprays.
  • Chemical Treatment Tanks: In environments where lubrication is impossible, our PE/POM components provide the low-friction performance needed to protect your conveyor motors from over-torque.

Why Choose Qixingyuan Machinery

Proven Expertise

Over 15 years of experience (since 2008) in machinery equipment design and manufacturing.

Certified Quality

A high-tech enterprise with multiple national patent technology certifications.

One-Stop Solution

From Air Knives to Gears, Screws, and Conveyor Rollers, we provide a full suite of transmission and cleaning consumables.

Global Reach

Fast communication via WhatsApp and Email for international procurement.

Get A Quote

Looking for a Custom Roller Solution? Contact our engineering team today for a quote or technical consultation.