FAQ for Machine of Yieh Chen
Q1. Which materials are suitable for thread rolling on Yieh Chen machines?
Materials with high ductility and continuous flow characteristics are ideal for thread rolling. We categorize them based on application:
| Category | Material Examples | Common Applications |
|---|---|---|
| General Steel | Low carbon steel, Non-hardened steel | Construction infrastructure (U-bolts, Threaded rods). |
| High-Grade Steel | Alloy steel, Quenched/Tempered steel, Stainless steel | Automotive fasteners, Wind power plants, Oil refineries (High-strength studs, Ball studs). |
| Non-Ferrous & Special | Copper, Aluminum alloy, SUS304, Free-cutting steel | Parts requiring fine surface finish. (Note: Materials producing continuous chips perform best). |
| Hollow Pipe | Cast steel, SS41, SUS316 | Gas/Oil pipeline joints, Heat exchange systems. |
Q2. How to choose the right thread rolling machine model?
Selecting the correct model requires balancing four key factors: Material, Hardness, Thread Profile, and Thread Length.
Since these factors often conflict, Yieh Chen uses proprietary calculation software to determine:
- The minimum required rolling pressure.
- The allowable workspace for the workpiece.
Please provide your workpiece specifications, and we will recommend the most cost-effective model.
Q3. Does Yieh Chen provide training for new operators?
Yes. With nearly 40 years of global export experience, we offer comprehensive support:
- On-site Training: Learn machine operation and inspection at our factory.
- Digital Resources: Detailed operation manuals and instructional videos.
- Support Team: Our team responds within 24 hours on working days to assist with troubleshooting.
Q4. What is the warranty policy for Yieh Chen machines?
We provide a 1-year warranty starting from the date of the machine's arrival at the buyer's port. (Excluding consumable parts).
Q5. What is the expected lifespan of a thread rolling die?
Die lifespan varies significantly based on workpiece material and hardness. Generally, dies used for mild steel last approximately three times longer than those used for stainless steel.
Q6. How to maximize the service life of thread rolling dies?
To secure optimal die performance, please check the following:
- Material Selection: Use different dies for carbon steel and stainless steel to avoid cross-contamination and wear.
- Coolant: Choose the appropriate coolant oil for the specific material.
- Alignment: Ensure the pitch alignment of the two rollers is correct.
- Operation: Avoid "Over-pressing." Ensure the feed speed changes correctly between fast and slow approach.
- Workpiece Condition: Ensure the blank diameter is correct and the front end is chamfered (no burrs).
Q7. What specifications are needed to order customized rolling dies?
Please provide the following data for a quote:
- Machine Model: (e.g., Yieh Chen YC-530)
- Die Dimensions: O.D. x I.D. x Keyway x Width
- Workpiece Data: Material, Hardness, Thread Profile, Pitch (or TPI)
- Rolling Method: Through-feed or In-feed
Q8. Does Yieh Chen offer automatic feeding solutions?
Yes. We can evaluate your project scope and provide customized automation solutions (e.g., Vibratory Bowl Feeders, Bar Feeders) to enhance production efficiency.
Q9. Can the spindle and keyway be customized?
Yes, we offer customization services for spindles and keyways to fit your existing tooling or special requirements.
Q10. Hydraulic vs. Digital Control: Which Thread Rolling Machine is right for you?
While traditional machines are durable, Digital Control (Electric) machines are the future of smart manufacturing. Here is the comparison:
| Feature | Traditional (Hydraulic/Cam) | Digital Control (Servo Electric) |
|---|---|---|
| Drive System | Gear box + Universal joints | Dual Servo Motors + Reducers |
| Setup Time | Manual adjustment (Slower) | Fast positioning via screen parameters |
| Ease of Use | Requires experienced technicians | Beginner-friendly (Digital memory) |
| Industry 4.0 | Basic operation | AI & Remote Management ready |