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syjx@shengyangringrollingmachine.com
2026-02-03
When you hear “Chinese ring rolling machines,” the first reaction of many in the industry is still skepticism. They say that reliability, accuracy, and durability are not their strong point. But over the past seven or eight years, the picture has changed dramatically, and clinging to these old stereotypes is simply stupid. About ten years ago, I myself treated their equipment with great caution, until I came across specific projects where Western analogues were simply unaffordable in price, and the results from Chinese machines had to be achieved with hands and head. This is what I want to talk about, about real innovations, and not about advertising brochures.
Previously, the main problem was not so much the mechanics as the control system. They installed anything, the software was crude, the interface for the operator was torture. Now many serious manufacturers, like those behindShandong Shenyangare worth it, switched to Siemens systems or at least high-quality local analogues. This is not cosmetics, this is a fundamentally different level of predictability of the process. Positioning accuracy and cycle repeatability have reached a level quite acceptable for mass production.
But innovation is not only about an imported controller. Here, for example, is the cage design. I observed the work of their machines for rolling large-sized rings, the same flanges for wind energy. Previously, there was a problem with vibration at high speeds, especially when rolling out. Now many models come with a reinforced frame, monolithic, with a modified geometry of the mandrel rollers. It feels like we worked on QED models and carried out fatigue calculations. These are not loud statements, but specific details that are visible only after prolonged use.
Or a lubrication and cooling system in the deformation zone. It would seem like a small thing. But on older models there are constant blockages and overheating of the instrument. Now they have begun to install multi-stage filtration and real-time temperature sensors that can adjust the mode. This is already an element of Industry 4.0, albeit in its infancy. These things are real, down-to-earth innovations that save time and money on the shop floor.
Of course, the main argument is cost. It can be one and a half to two times lower than that of Europeans. But here it is important not to just buy a “machine”. You need to buy a “solution”. I once took a line for rolling bearing rings. On paper, everything is perfect: both accuracy and performance. But in fact, a problem arose with the calibration of the wall thickness sensors after replacing the mandrels. The documentation is sparse, and the service engineer via video link does not always understand the essence of the problem. We had to write an additional calibration algorithm ourselves, at random. There are innovations in hardware, but there is still a big gap in service support.
Another point is the components. Electric motors, hydraulic pumps. Manufacturers often save money here by introducing cheaper local brands. It's a lottery. You can persuade them to install, say, Bosch Rexroth or ABB, but the price will immediately creep up. It is necessary to write down the specification very clearly at the order stage. Once I overlooked it - I got a machine that worked like a clock for the first six months, and then problems began with the smooth running of the hydraulic cylinders. I had to change the pumping station at my own expense.
Suppliers likeShandong Shenyang Mechanical Equipment Co.,Ltd(their website, by the way,shengyangjxgroup.ru- a typical catalog, but you can figure out the technical data) often position themselves as high-tech enterprises. And in some ways this is true. But their ?high technology? It's better to check references. Ask where their machine has been operating for three years on a product range similar to yours, and go and have a look. See the welds on the frame, listen to the noise of the bearing units - this is the best examination.
Where Chinese manufacturers have really started to win is in their readiness for non-standard tasks. Do you need a machine for rolling rings made of a special alloy, with a non-standard D/s ratio (diameter to wall thickness)? The Europeans will make calculations for six months and issue a space invoice. The Chinese engineering team, especially in more advanced companies, is often willing to take on such a project, and changes can be made to the design almost on the fly, in the process of discussion.
But this flexibility is a double-edged sword. Sometimes you get the impression that each machine they have is a little “piecemeal”. That is, by purchasing two identical models six months apart, you can get different solutions for the layout of the electrical cabinet or the wiring of communications. This is a headache for the service. There is no total standardization like the Germans. This is a consequence of rapid adaptation to market demands, but it may be inconvenient for the end user.
It's the same story with software. The basic functionality is there, but if you need to integrate the machine into the overall MES system of the workshop, get ready to dance with a tambourine. Data transfer protocols can be custom, APIs can be closed or simply undocumented. Interconnect innovation lags behind mechanical innovation. Although, again, there is progress. New models more often have an OPC UA server out of the box.
I would like to give an example not of success, but of problematic implementation. We ordered a complex for hot rolling with an integrated induction furnace. All in one, compact, automatic feeding of the workpiece - a beautiful concept. The manufacturer (I will not name) was very proud of this development. Everything worked during tests in China. When they brought it to us and launched it, synchronization problems began.
It turned out that the furnace control algorithm was not properly adapted to fluctuations in voltage and water quality in our cooling system. ?Smart? the system began to frantically adjust the parameters, which caused the timing of the delivery of the heated billet to the rolls to be disrupted. It took a month to “dumb down” together with their engineers (who arrived only after three weeks of correspondence). system, introduce tighter tolerances and add buffer zones. Innovative integration resulted in unnecessary complexity. Conclusion: sometimes simplicity and separation of nodes is more reliable.
Now this complex is working, but we have turned off half of the “intelligent” ones. heating optimization functions. It works according to a strict, proven algorithm. This is also a valuable experience. Not every innovation is useful in the harsh conditions of real production. Chinese engineers sometimes get too carried away, trying to cram in as many features as possible without testing them in different environmental conditions.
So is this innovation? Undoubtedly. But these are innovations of a special kind - pragmatic, price-oriented and quickly satisfying market demand. These are not fundamental breakthroughs in metalworking, but rather a competent and rapid adaptation of existing technologies, their layout and reduction in cost. They have already grown a lot in mechanics. In digital, they are catching up, but with typical growing pains: unstable software and a weak ecosystem.
Choosing Chinesering rolling machineToday, you are not buying a “pig in a poke”, but a very specific tool. But a tool that requires a more thoughtful approach when ordering, strict conditions in the contract and a willingness to do a little fine-tuning on the spot. Ideal for those who have competent mechanics and process engineers who can “put the pressure on?” equipment to suit your needs. For sterile ?bought-turned-works? However, there are still more predictable, but also more expensive options.
Sites likeshengyangjxgroup.ru- this is just an entry point. For a catalog and beautiful 3D models, you need to look for live reviews and go to existing production facilities. The innovation of a Chinese machine today is proven not in a presentation, but in the workshop, under load, through thousands of cycles. And from this point of view, many models have already been tested. Are they catching up? Yes. And in some ways, in readiness for customization and price, they even set a trend. But it’s too early to relax - the path from good hardware to an impeccable technological complex is still long.
