Stamping Automation FAQs | Decoiler Straightener Feeder Support

FAQs

Frequently Asked Questions | SUNRUI MACHINE

Whether you're specifying a new coil feed line, comparing equipment options, or troubleshooting an existing installation, we've compiled answers to the most common questions we receive from production managers, plant engineers, and procurement professionals around the world.

General Questions

Q: What does SUNRUI Machine do?

SUNRUI is a manufacturer and solution provider of precision coil processing and stamping automation equipment. We design, build, and support turnkey coil feed lines—including decoilers, straighteners, servo feeders, and complete press feeding systems—for industries ranging from automotive and appliance to electronics and construction.

Q: What are the payment terms?

SUNRUI accepts T/T (telegraphic transfer) and LC at sight for orders exceeding USD 15,000. For smaller orders, alternative arrangements can be discussed with our sales team.

Q: What is the typical lead time for SUNRUI equipment?

For standard decoilers, straighteners, and feeders, the typical lead time is 10-25 workdays. We usually maintain stock of common models for urgent requirements. For compact 3-in-1 feed lines or complete metal stamping lines, the lead time ranges from 30-90 workdays depending on specifications and current production schedule.

Technical & Selection Questions

Q: What is a 3-in-1 decoiler straightener feeder?

A 3-in-1 system integrates the decoiler (coil unwinding), straightener (flattening), and servo feeder (precision indexing) into a single compact unit. It reduces floor space by up to 50% compared to traditional separate-component lines, simplifies setup, and improves feeding accuracy to ±0.15mm.

Q: How do I choose the right coil feed line for my application?

The optimal system depends on several factors: material type and grade, strip width and thickness, maximum coil weight, required feed accuracy, press speed, and available floor space. We recommend providing these specifications to our engineering team for a tailored recommendation.

Q: Can SUNRUI equipment handle high-strength steel (HSS)?

Yes. SUNRUI coil feed lines are engineered to process high-strength steel with tensile strength up to 1500 MPa and thickness up to 6.0mm. For HSS applications, heavy-duty pneumatic pressing arms, hydraulic snubbers, and GCr15 hardened straightening rollers ensure safe, controlled processing.

Q: What is the feeding accuracy of SUNRUI servo feeders?

Our servo feed systems, powered by Yaskawa or Mitsubishi drives, achieve a repeatable feeding accuracy of ±0.15mm, supporting high-precision progressive die stamping applications.

Q: What is the standard warranty?

SUNRUI provides a 12-month warranty on standard equipment, with options for extended coverage. Comprehensive support—including installation, training, and preventive maintenance—is available globally.

Q: How can I get support or replacement parts?

Our global after-sales network provides 24/7 remote technical support, genuine OEM spare parts from stock, and on-site service for troubleshooting, performance optimization, and equipment upgrades.

1. What SUNRUI machine do?

SUNRUI Machine is a company which can provide customer with the very best quality press automation solution and turnkey coil feed solutions.
2. What's payment terms?

SUNRUI MACHINE receives T/T payment and LC at sight when the amount over USD15000.00.
3. What's SUNRUI coil equipment leading time?

For standard decoiler, straightener or feeders, the usually lead time is about 10-25 workdays, but we usually have machines in stock. Please contact with our sales if you need the coil handling equipment urgently.

For compact coil feed lines or whole metal stamping lines, it needs 30-90 workdays depends on different specifications and production plan in our factory.
4. What's warranty time of your machine?

Usually the warranty time is 12 months. Also the warranty time can be extend according to the specific requirements.
5. What after-sales service does SUNRUI provide?

For the standard decoiler straightener feeder machine, it's easy to install and debug it, most of our customers can do it by themselves; And what's more, our technical engineer can teach your operators how to install and operate it. SUNRUI machine on-site training will avoid operational problems that are easy to occur at the beginning of production. The training after sales service will create more value for your employees.

For the compact coil feed machine and complete metal stamping line, SUNRUI can arrange engineers to go overseas for the coil handling equipment installation. They guide the customer's operators on-site. Then the commissioning phase will smoothly enter into the mass production phase.
6. What's the package of your coil feeding machines?

For standard small decoiler, straightener, feeder which go LCL shipping, SUNRUI machine will use plastic films cover the equipment, and then fix it into a plywood cases.
For the coil feed lines and complete line which go FCL shipping, SUNRUI machine will fix each part with ropes on the shipping container and then wrapped them with plastic films.
For the big machine which go special container or flat rack, we will cover it with film and fixed it or use vacuum packaging according to the port requirements.

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