Have you ever wondered how friction discs are actually made? It’s not just about cutting some metal and shipping it out. In top factories in China, making a high-quality friction disc is a serious job — with many important steps.
Let’s take a behind-the-scenes look at how Chinese factories turn raw materials into the powerful, durable discs that keep your machines running strong.
1. It Starts With the Right Material
Every good friction disc begins with high-quality steel or friction paper. Chinese manufacturers work with trusted material suppliers to make sure the discs have the right hardness, thickness, and surface condition.
This step is super important — better raw materials mean longer-lasting performance.
2. Cutting and Shaping
Once the materials are ready, it’s time to shape the disc. Chinese factories use CNC machines, laser cutting, or stamping presses to create the basic form.
At this stage, each disc gets its inner and outer teeth, which help it fit perfectly inside transmissions or brake systems.
3. Heat Treatment and Sintering
Next comes one of the most important steps: heat treatment. This process makes the discs stronger and more wear-resistant. Some discs also go through sintering, where powder materials are heated to bond them without melting. This creates a high-friction surface that performs well under heavy loads.
This is where OEM-level quality really starts to shine.
4. Grinding and Surface Finishing
After heat treatment, the disc needs to be perfectly flat and smooth. That’s where rough and fine grinding comes in. Chinese factories use big surface grinders to remove extra material and make sure the disc meets tight thickness tolerances.
Some discs are also polished or coated (like with phosphate or chrome) to reduce rust and improve performance.
5. Final Checks and Testing
Before shipping, each disc goes through a final inspection. Workers check for:
- Flatness
- Tooth accuracy
- Thickness
- Hardness
- Surface finish
Some factories even do runout tests and material testing to make sure everything is just right.
Only after passing inspection do the discs get packed, labeled, and sent out to customers.
Why It Matters
A lot of buyers just focus on price, but the manufacturing process tells the full story. Chinese factories that follow the full process — like heat treatment, sintering, and final grinding — make discs that last longer and protect your machines.
Low-cost suppliers might skip these steps, which is why their parts don’t hold up.
🔧 Want Friction Discs Made Right?
At frictiondisc.com, we follow every step of the professional manufacturing process, just like OEM suppliers. From raw material to final test, we make sure every disc is strong, accurate, and built to perform.
👉 Contact us today to see samples, get a quote, or ask about custom parts!