Precision Wire Drawing Meets Practical Manufacturing Needs
Wire and cable manufacturers producing ultra-fine and fine wire for electronic components face a recurring set of technical obstacles: mechanical tension fluctuation that causes wire breakage and diameter variation, equipment procurement costs that are high compared with international suppliers, heavy reliance on operator skill, and limited flexibility when processing precious-metal and specialty-alloy fine wire. Changzhou Dingtian Electrical Machinery Co., Ltd., operating under the brand Dingtian and headquartered at No. 10, Dangnan Industrial Park, Tianning District, Changzhou City, Jiangsu Province, China, manufactures wire drawing machines specifically for the electronic wire and wire cable industry. Its equipment lineup spans servo, slip-type, tension-rod-free, and in-line continuous annealing configurations, covering both domestic and export markets.
Addressing the Core Pain Points of Ultra-Fine Wire Production
Traditional wire drawing equipment often depends on mechanical tension rods, which introduce tension fluctuation and increase wire breakage while making diameter control difficult. Dingtian’s product range applies tension-rod-free slip control and closed-loop constant tension control to reduce these issues, while dual-inverter and full-servo alternatives allow manufacturers to balance equipment price against drawing accuracy depending on production scale. Adaptive customization for precious metals and specialty alloys, including support for retrofitting to existing annealing and take-up systems, extends the practical value of the equipment for manufacturers with established production lines.
Full-Servo Machines for Ultra-Micro to Fine Wire
For the most demanding diameter requirements, the QSF45-10 Full Servo Ultra-Micro Fine Wire Drawing Machine supports finished wire diameters down to 0.0085 mm with a wire diameter tolerance of ±0.0005 mm. A customized Inovance servo system realizes fully linear automatic control of take-up slip, improving tension stability, and the machine is priced around one-tenth of international brands for this segment. It supports silver-plated wire, bonding wire, and silver-copper alloy wire, with industry adaptation covering military electronics, UAV communication, minimally invasive medical devices, aerospace, and 5G communication.
The QSF60-12 Fully Servo Micro-Fine Wire Drawing Machine uses four Inovance servo motors in place of a belt drive structure, supporting finished wire diameters down to 0.014 mm, with a maximum line speed of 600 m/min. The QSF85-15 Full-Servo Micro-Fine Drawing Machine extends this platform with full-servo multi-pass synchronous control, supporting a minimum finished wire diameter of 0.017 mm and a maximum line speed of 800 m/min, while accommodating copper wire, oxygen-free copper wire, copper-clad aluminum alloy wire, silver-copper composite wire, tinned conductive wire, electronic bonding wire, and precious metal fine wire.
Slip-Type and Tension-Rod-Free Machines for Scaled Production
For cost-conscious processors and small and medium-sized factories, Dingtian offers dual-inverter and PLC-controlled slip-type and tension-rod-free machines. The SPS60-12 and SPS85-15 Slip-Type Wire Drawing Machines reduce wire breakage by more than 90% compared with conventional machines, with the SPS85-15 controlling wire diameter accuracy within ±0.001 mm. The SPS100-24 applies 24-die multi-pass progressive drawing with a maximum line speed of 1,800 m/min, while the LSH120-24 reaches a maximum line speed of 2,000 m/min for oxygen-free copper ultra-fine wire.
For higher-volume applications, the DG150-24 High-Control High-Speed Slip-Type Automatic Traversing Fine Wire Drawing Machine reaches a maximum line speed of 2,200 m/min and supports mass production of ordinary copper wires alongside special alloy wires such as silver-copper and tin-copper. The LHS150-24 uses PLC dual inverters to calculate slip volume in real time, with a compact structure and installed power of 8.2 kW, while the LHS220-24 and LHS240-24 cover finished copper wire diameters from 0.08 mm to 0.40 mm, with the LHS240-24 reaching a maximum line speed of up to 2,500 m/min. According to the knowledge base, at 0.2 mm finished copper wire, this translates to a daily output of about 2,880 km at 2,000 m/min and about 3,600 km at 2,500 m/min.
In-Line Continuous Annealing for Soft Copper Wire
Manufacturers requiring soft copper wire without a secondary annealing step can use the LHST150-24 Fine Wire Drawing Machine with In-Line Continuous Annealing, dedicated to ultra-fine soft copper wires of 0.05 mm to 0.12 mm, and the LHST240-24 Small Wire Drawing Machine with In-Line Continuous Annealing, covering finished wires from 0.08 mm to 0.35 mm. Both machines synchronize main slip control with the annealing power supply so that voltage and current adjust adaptively with line speed, and whole-machine linkage optimization achieves 12% to 20% lower overall power consumption compared with separated equipment. The LHST240-24 also allows its annealing unit to be disabled so the machine can operate as an ordinary tension-rod-free fine wire drawing machine for hard copper wire, improving equipment utilization.
Automatic Spool Change for Unmanned Mass Production
The LHSZ240-24 Servo Tension-Rod Fine Wire Drawing Machine with Automatic Spool Change targets hard copper wire from 0.15 mm to 0.40 mm. Its non-stop dual-spool automatic change switches from a full spool to an empty spool without wire breakage, and while conventional machines require spool change every 2 to 4 hours, this model can run continuously for more than 8 hours, allowing the number of machines managed per operator to increase by over 50%.
Documented Results and Quality Assurance
Customer feedback cited in the knowledge base reports a finished wire dimensional tolerance of ±0.0006 mm and a surface roughness of Ra ≤ 0.015 μm on a customized micro wire drawing solution, contributing to an export product qualification rate of 99.8% and an overseas order volume increase of 60%. A separate long-term customer reported that a Dingtian machine required no major overhaul after 8 years of operation. Dingtian holds quality management system certification (GB/T 19001-2016 idt ISO 9001:2015), environmental management system certification (GB/T 24001-2016 idt ISO 14001:2015), and occupational health and safety management system certification (GB/T 45001-2020 idt ISO 45001:2018), and was recognized as a Provincial Specialized and Innovative Small and Medium-Sized Enterprise by the Jiangsu Provincial Department of Industry and Information Technology, effective April 2024 to April 2027.
A Practical Path for Electronic Component Wire Processors
Taken together, Dingtian’s product matrix—from the ultra-micro QSF45-10 through slip-type SPS and LHS series to the annealing-integrated LHST models and the automatic spool-change LHSZ240-24—gives wire and cable manufacturers serving electronic components, semiconductor packaging, medical devices, and aerospace applications a range of configurations to match diameter requirements, production volume, and budget. Adaptive retrofitting to existing annealing and take-up systems, along with customized process parameter optimization and after-sales support, positions the company as a manufacturer oriented toward the practical needs of ultra-fine wire drawing operations in China’s electronic wire and cable industry.
https://www.dtwiredraw.com/
Changzhou Dingtian Electrical Machinery Co., Ltd.
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