Wuxi Shuhong Machinery Fully Launches 2026 Transformer Equipment Delivery Plan

With the Spring Festival still lingering, the Hai'an production base is already fully operational – 3D core winding equipment is about to be shipped to Southeast Asia and European markets.

 I. A Sprint to the Start: The Roar of Machines on the Eighth Day of the ChineseNew Year

February 24, 2026, the eighth day of the first Chinese month. Red lanterns still hung in the marketing center of Room A508, Zhihui Port, Wuxi East Railway Station, while the roar of equipment debugging echoed from the production base in Hai'an, Nantong, 120 kilometers away.

At 8:18 AM, with the start-up test of the first 3D triangular core winding automatic winding machine, Wuxi Shuhong Machinery Technology Co., Ltd. officially ended its Spring Festival holiday and fully entered the 2026 production and delivery cycle. In the workshop, workers were performing final precision calibration on a CNC slitting line for silicon steel sheets about to be shipped to Turkey. At the next workstation, two 3D core winding machines were having their electrical control systems assembled.

"We resumed work three days earlier than usual this year," the production director said at the morning meeting. "Delivery pressure on overseas orders is increasing, but quality standards cannot be compromised in the slightest."

 II. Changes in Order Structure: A Technological Shift by Global Transformer Manufacturers

Statistics from the first day of resumption of work showed that, as of the eighth day of the Chinese New Year, Shuhong Machinery's total order backlog increased by 37% compared to the same period last year, with overseas orders exceeding 45% for the first time. More noteworthy is the change in order structure: the proportion of specialized equipment for three-dimensional triangular wound iron cores jumped from 28% last year to 51%, and orders for amorphous alloy iron core shearing lines more than doubled year-on-year.

This data confirms the technological shift in the global transformer equipment market—an accelerated transition from traditional laminated iron cores to three-dimensional wound iron cores. A Turkish power equipment manufacturer, when confirming orders before the holiday, explicitly stated that the reason for choosing Shuhong was that its three-dimensional wound iron core curve cutting machine could achieve a cutting accuracy of ±0.3mm and a material utilization rate of 99%, which is a key prerequisite for reducing no-load losses.

 III.Production Line Overview: A Complete Closed Loop from Slitting to Winding

Stepping into the Hai'an production base, the nearly 12,000 square meter workshop is laid out according to the process flow. The east side is the CNC slitting line for silicon steel sheets, the west side is the assembly area for the automatic winding machine for three-dimensional iron cores, and the central aisle is neatly arranged with foil winding machines and vacuum annealing furnaces awaiting shipment.

At the SHKL-400 three-dimensional iron core curve cutting machine, a technician is adjusting the cutter clearance. This machine will complete its final testing this week, and then, along with four other machines, will form a complete transformer core production line for shipment to Vietnam. Its core value lies in maintaining the burrs on the edge of the silicon steel strip to no more than 0.03mm after cutting, and controlling the cutting width accuracy within ±0.3mm. For the subsequent winding process, this means that the foundation for a seamless magnetic circuit between the iron core sheets has been laid.

Deep inside the winding workshop, two vertical winding machines are being assembled for a domestic ultra-high voltage equipment manufacturer. The LRJ-20T-3000 model winding reel has a maximum load capacity of 20 tons and a maximum torque of 21,000 N·m, capable of supporting the winding requirements of large power transformer coils. The equipment is equipped with an automatic lubrication system featuring an oil shortage alarm to prevent bearing damage due to lubrication interruption.

 IV.How Winding Accuracy Determines Transformer Lifespan

Statistical data on transformer failures show that over 60% of failures are related to winding deformation or insulation damage. The quality of the winding depends entirely on the tension control and wire arrangement accuracy of the coil winding equipment.

An even more complex challenge comes from the three-dimensional triangular foil winding integrated machine, a specialized device developed by Shuhong for three-dimensional wound iron cores. It needs to simultaneously process four materials: enameled wire, flat wire, paper-insulated wire, and foil strip, and must quickly switch between winding and foil winding modes. When switching from winding to foil winding, the foil strip and layer insulation device shift 600mm to the right to avoid the winding area; when switching back to winding, the foil winding device automatically resets. This design reduces the single switching time from 45 minutes to 8 minutes.

 V.Amorphous Alloys and Silicon Steel: Equipment Support for Two Technological Routes

The global transformer market is evolving along two technological routes: the silicon steel route pursues maximum energy efficiency, while the amorphous alloy route pursues ultra-low no-load loss. Shuhong's transformer manufacturing equipment covers both directions.

In the silicon steel field, the SH-1000 CNC slitting line has an installed power of 55kW, an adjustable shearing speed of 0-150m/min, and can slit coils into up to 10 strips with a shearing width error controlled within ±0.1mm. The accompanying buffer device and tension table ensure that the strip remains flat during high-speed slitting.

In the amorphous alloy field, the SH-200 amorphous alloy core shearing line has a feeding speed of 60m/min, a shearing length range of 300-3000mm, and a length accuracy of ±0.5mm. Amorphous alloy materials are only 0.023mm thick per layer and are highly brittle; conventional shearing methods easily cause edge chipping. Shuhong's solution employs a servo system to control the feeding and shearing timing, reducing the blade impact speed during shearing. Simultaneously, an automatic material handling device neatly stacks the sheets, achieving a stack thickness of up to 180mm with positional errors controlled within ±0.5mm.

The equipment requirements for these two technological approaches are converging. A European transformer research institute points out that the future trend is hybrid magnetic circuit design—using amorphous alloys in parts of the core to reduce losses, and using silicon steel in stress concentration areas to ensure mechanical strength. This places higher demands on electrical equipment: the same equipment needs to be able to handle two materials, and the switching process should not require complex adjustments.

 VI.Shipment Announcement on the First Day of Resumption of Work As of 4 PM on the eighth day of the ChineseNew Year, the Hai'an production base had completed factory testing of twocomplete production lines and entered the packaging and shipping stage.

The first set was shipped to Istanbul, Turkey, including an SHKL-400 curve cutter, an SHJR-1200 automatic winding machine, an SHRX-2 3D winding machine, and matching tension pay-off frames and a vacuum annealing furnace. The buyer is a 40-year-old family business, introducing 3D core winding technology for the first time.

The second set of equipment, shipped to São Paulo, Brazil, includes one SH-1000 silicon steel sheet CNC slitting line and two SH-600 foil winding machines. At the customer's request, an argon arc welding device was added.

Both sets of equipment share a common feature: the buyer prioritized the automation level and precision control of the transformer winding equipment as primary evaluation indicators, while price became secondary. This confirms Shu Hong's market assessment—the global transformer manufacturing industry is shifting from cost-driven to performance-driven growth.

 VII.2026 Technology Deepening Directions At the production meeting on the first day of resuming work, the Technology Center disclosed its R&D priorities for 2026.

First, improve the control precision of the automatic winding machine. The current encoder counting precision is 0.1 turns; the plan is to upgrade to 0.05 turns within the year, combined with a tension closed-loop control algorithm, to make the pressure distribution between coil layers more uniform.

Second, expand the load-bearing range of the vertical winding machine. Currently, the largest coil winding machine has a load capacity of 40 tons, and some customers have expressed demand for 50-60 tons, corresponding to larger capacity generator transformers.

Third, we are developing remote diagnostic functions for coil winding equipment. By adding an IoT module to the control system, we can achieve real-time monitoring of equipment operation status and fault early warning, shortening service response time for overseas customers.

The common goal of these technological directions is to make the manufacturing process of transformer cores and coils closer to the ideal state of theoretical design. The final performance of a transformer is always the product of material properties and manufacturing precision.

 VIII. Conclusion: Resumption of Work is the Starting Point of Iteration

In the workshop on the eighth day of the Chinese New Year, red lucky money envelopes for starting work were still on the tables, and workers had already changed into their work clothes and started operating the equipment. On a three-dimensional core winding machine being assembled, there was a certificate of merit from last year; next to it, the nameplate of a newly produced piece of equipment showed a manufacturing date of February 2026.

For Wuxi Shuhong Machinery Technology, resuming work after the Spring Festival is not simply repeating last year's work, but the starting point of a new round of technological iteration. Every piece of equipment shipped from the Haian production base will enter a country's power grid, becoming a component of the transformer core that operates continuously for decades. The unseen data on silicon steel grain orientation, coil tension fluctuations, and annealing temperature uniformity will ultimately translate into reduced power grid losses and increased reliability.

This is perhaps the essence of electrical equipment manufacturing: using the ever-improving precision of each generation of equipment to support the expansion of power system efficiency boundaries. In 2026, this process continues.