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syjx@shengyangringrollingmachine.com
2026-02-14
If you look for a Chinese manufacturer of CNC ring rolling machines, you immediately come across a sea of companies that do everything in words. But when you start digging deeper, you realize that many simply assemble machines from ready-made modules, and there is no talk of real radial-axial rolling with fine tuning and adaptation to specific workpieces. This is where the real search begins.
Often this term is simply understood as an assembly shop. I bought components - servos from Siemens or Fanuc, hydraulics from Bosch Rexroth, frame cast on the side - assembled, painted and sold as my ownradial and axial rolling machine. This is not always a bad thing if the integration is good. But for complex forgings, such as large bearing rings or flanges for power generation, this approach is risky. We need a deep engineering study of the kinematics of the process itself.
I came across a situation where the machine formally met all the declared parameters in terms of force and diameter, but when working with a heat-resistant alloy, problems began with the accuracy of the geometry. It turned out that the CNC system was “closed?” and did not allow fine adjustment of the deformation algorithm in real time. I had to intervene on the spot and negotiate with the engineers, which resulted in downtime and extra expenses.
Therefore, the first filter - you need to look not at the beautiful pictures in the catalog, but at the presence of your own design bureau, which can provide calculations and simulations of the rolling process specifically for your workpiece. Without this, they are just hardware sellers.
Traditionally, enterprises from the provinces of Jiangsu and Shandong have a strong position. Heavy engineering clusters have historically developed there. Speaking specifically aboutradial rolling of rings, then it’s worth taking a close look at Shandong. Not only are final assemblers concentrated there, but also suppliers of key components, such as heavy-duty main drive rollers.
One of the companies worth paying attention to in this context isShandong Shenyang Mechanical Equipment Co.,Ltd. They position themselves as a high-tech enterprise, and what is important is that their product range includes radial-axial rolling mills. Their website (https://www.shengyangjxgroup.ru) is worth studying not only in the catalog, but also in sections with technical documentation. Often, by the way drawings and diagrams are designed, you can indirectly assess the depth of development.
But Shandong is not a panacea. There are decent engineering teams in other regions, for example, in Wuhan or Dalian. It all depends on the specific team of engineers that will lead your project. I always ask to immediately meet the technical manager, and not just the salesperson.
The biggest mistake is to think that the main thing isCNC machine- This is a color touch screen. No. The mathematics built into the control program is critical. An algorithm that calculates the trajectory of the support and main rollers, controls axial movement, and compensates for springing and heating of the workpiece.
Cheap machines often have a standard CNC, adapted for milling or turning work, and they simply “attract” it. for rolling. This leads to the fact that the machine can work well in a demonstration with a standard workpiece, but in real production with fluctuations in metal temperature it begins to “strange”. You need to look for manufacturers who develop or deeply customize software for their mechanics.
For example, when rolling large-diameter rings (from 4 meters), drive synchronization is critically important. The slightest desynchronization and you get an ellipse instead of a circle. It's a good sign when the manufacturer is willing to discuss not only standard modes, but also the possibility of loading custom cycles or integrating with a real-time geometry control system.
I'll tell you about one of our experiences. We ordered a machine for rolling stainless steel rings. Everything in the specification was perfect. But upon startup, it turned out that the cooling system of the hydraulic station is designed for a temperate climate, and in our workshop in the summer it’s +35. The hydraulics overheated, the machine crashed every few hours. We had to urgently purchase and install an additional heat exchanger.
This is a question of details. When choosing a manufacturer, be sure to ask about climatic versions and recommended conditions in the workshop (temperature, dust). Chinese engineers often design for their own, rather mild conditions. Another point is the tools and equipment. Make sure that spare rollers and bearing units can be obtained promptly, and not wait 3 months by sea from China if they break down.
CompanyShandong Shenyang Mechanical Equipment Co.,Ltdin this regard, it is more trustworthy, since, judging by the structure of the site, they have a support section and, what is important, they work through a localized .ru domain. This often means having a spare parts warehouse in the CIS or well-established logistics, which is critically important for uninterrupted production.
Price is, of course, a deciding factor, but when looking at it over the long term, it's the total cost of ownership that's more important. This includes: 1) Energy consumption (compare drives, with modern servo systems it can be 20-30% lower); 2) Maintainability (how easy it is to get to key components); 3) Possibility of modernization (can a laser scanner be added later for control).
I advise you to always request a video of the machine operating not in ideal exhibition conditions, but in real production from other customers. It would be better if it was a long video showing the full cycle, including loading the workpiece and unloading the finished ring. Pay attention to vibrations and the sound of work.
And one last thing. Feel free to ask ?uncomfortable? questions: what was the biggest defect that occurred on this machine? What problems do customers most often encounter? The answers (or lack thereof) will say more about the manufacturer than any advertising brochure. Searchmanufacturer China machineis always a dialogue and a test of strength. Anyone who is confident in his equipment will not hide its weak points, but will offer an engineering solution.
