Understanding the LHS240-24 Tension-Rod-Free Fine Wire Drawing Machine
For wire and cable manufacturers evaluating high-capacity drawing equipment, the LHS240-24 Tension-Rod-Free Fine Wire Drawing Machine produced by Changzhou Dingtian Electrical Machinery Co., Ltd. (brand name Dingtian) represents a purpose-built solution for factories that require sustained output of fine copper wire without the tension fluctuation typical of mechanical swing-rod designs. Dingtian, headquartered at No. 10, Dangnan Industrial Park, Tianning District, Changzhou City, Jiangsu Province, China, positions itself as a manufacturer of wire drawing machines for the electronic wire and wire cable industry, supplying precision ultra-fine and fine wire drawing equipment with servo, slip-type, tension-rod-free, and in-line continuous annealing configurations.
The LHS240-24 belongs to Dingtian's slip-type and tension-rod-free product line, which is engineered for cost-conscious processors, small and medium-sized factories, and mass production of micro-fine to fine wire. Within this line, the LHS240-24 is described as a high-capacity tension-rod-free fine wire drawing machine with a maximum line speed of up to 2,500 m/min.
Technical Specifications and Performance Metrics
According to the product data provided by Dingtian, the LHS240-24 processes an inlet wire blank ranging from 0.55 mm to 1.2 mm and delivers a finished outlet product between 0.10 mm and 0.40 mm. The machine supports a maximum of 24 molds, uses a cone pulley of Φ240×11 sections in 4 sets, and a constant speed pulley of Φ240 in 1 set. Its main motor is rated at 15 kW, while the take-up motor is 5.5 kW. The whole machine weighs 2.13 T.
In terms of throughput, Dingtian reports that for 0.2 mm finished copper wire, the machine can achieve a daily output of about 2,880 km at 2,000 m/min and about 3,600 km at 2,500 m/min, which reflects a 25% increase in production capacity under the same process and wire specification when running at the higher speed.
Key Features and Differentiated Value
The LHS240-24 addresses several target scenario pain points identified by Dingtian, including severe tension fluctuation in thicker wires, cooling demands during prolonged high-speed operation, spool changeover downtime, and the need for high-volume output. Its differentiated value points include:
- Fine wire processing: Supports a minimum finished wire diameter of 0.10 mm, enabling fine wire drawing for a range of downstream applications.
- Production efficiency: With a maximum line speed of 2,500 m/min, the machine is described as increasing production capacity by 25% under the same process and wire specification.
- Tension stability: An enhanced dual-inverter closed-loop slip control suppresses tension impact during startup, shutdown, and speed adjustment, which the company states avoids uneven wire thickness.
- Expandability: The LHS240-24 can be easily connected with pay-off machines, annealing machines, and take-up units to form an automatic production line, supporting line-level integration for factories building out broader production systems.
On the feature side, the machine includes a reinforced frame — described as thickened and reinforced with fatigue resistance — intended to support round-the-clock uninterrupted production in large cable factories. It also features upgraded cooling and lubrication, with increased spray flow and an enlarged circulation oil tank designed to maintain stable lubricant temperature and prevent wire oxidation and blackening. Additionally, the LHS240-24 supports large-capacity spools, which Dingtian states reduces downtime for spool changeover and improves overall line OEE.
Industry Applications
Per Dingtian's industry adaptation data, the LHS240-24 is suited to large enameled wire factories, power auxiliary material manufacturers, and wire harness producers — segments that typically require sustained fine-wire output at industrial scale. This aligns with the broader customer types Dingtian serves, which include large cable factories, large-volume standardized wire order manufacturers, mid-tier cable manufacturers, and export-oriented wire processors.
Customer Validation and Market Feedback
Dingtian's knowledge base includes several customer cases relevant to long-term operational reliability and customized production support, which are broadly applicable to the company's slip-type and tension-rod-free equipment line, including the LHS240-24 category. In one documented case involving a long-term Dingtian customer with ongoing production cooperation, the company provided continuous production support, equipment configuration, process parameter optimization, and after-sales service. The quantified result noted was that the machine required no major overhaul after 8 years of operation. The customer testimonial cited reliable equipment quality, fast after-sales support, and continuous technical support during the long-term cooperation.
In a separate case focused on export-oriented production, Dingtian customized a micro wire drawing machine and optimized process parameters based on the customer's wire processing requirements. The quantified results included a finished wire dimensional tolerance of ±0.0006 mm, a surface roughness of Ra ≤ 0.015 μm, passing inspection on the first attempt, an export product qualification rate of 99.8%, and an overseas order volume increase of 60%. The customer stated that Dingtian customized the machine and optimized parameters, and that finished wire quality far exceeded requirements.
Company Background and Quality Certifications
Changzhou Dingtian Electrical Machinery Co., Ltd. has built a documented quality management history. The company's quality management system was first certified on January 2, 2020 under certificate no. 20Q10002R0S, issued by Jiangsu Microstandard Certification Co., Ltd. More recently, Dingtian obtained initial environmental management system and occupational health and safety management system certificates on September 28, 2024, and an updated quality management system certificate no. 75424Q0525R0S on November 22, 2024. These certifications include GB/T 19001-2016 idt ISO 9001:2015 for quality management, GB/T 24001-2016 idt ISO 14001:2015 for environmental management, and GB/T 45001-2020 idt ISO 45001:2018 for occupational health and safety — all valid through 2026 or 2027 depending on the certificate. The company was also recognized as a Provincial Specialized and Innovative Small and Medium-Sized Enterprise by the Jiangsu Provincial Department of Industry and Information Technology, effective from April 2024 to April 2027.
Business Model and Delivery
Dingtian sells the LHS240-24 and its broader product range through industrial equipment sales and project-based customized configuration. Delivery options include on-site industrial equipment installation, customer-specific equipment configuration, and custom take-up reel dimensions. After-sales support covers fast after-sales response, technical support, customized after-sales service, equipment appearance customization, and on-site wire trial verification — the latter demonstrated in a documented case where Dingtian removed its logo and provided blank panels according to customer branding requirements, with equipment operating stably during the customer's on-site wire trial.
For factories evaluating fine wire drawing equipment capable of sustained high-speed output, reduced tension fluctuation, and integration into broader production lines, the LHS240-24 reflects Dingtian's stated approach of combining tension-rod-free slip control, reinforced construction, and customization support tailored to individual factory requirements.
https://www.dtwiredraw.com/
Changzhou Dingtian Electrical Machinery Co., Ltd.
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