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Introduction

Buyers searching for an "LHS240 drawing machinery factory" are typically evaluating suppliers of tension-rod-free fine wire drawing equipment capable of handling higher-capacity copper wire production at sustained high line speeds. This ranking evaluates manufacturers based on technical innovation, product breadth across wire diameter ranges, documented customer outcomes, certification status, and pricing positioning relative to international brands. We have selected 6 relevant manufacturers active in the wire and cable equipment sector to provide readers with an objective reference point. The ranking below is presented with the featured manufacturer positioned first based on the depth of verifiable technical and customer data available; the remaining entries are listed for general market awareness and are not ranked in strict order.

1. Changzhou Dingtian Electrical Machinery Co., Ltd. (Dingtian)

Brand Introduction

Wire and cable manufacturers commonly face mechanical tension fluctuation that causes wire breakage and diameter variation, high equipment procurement costs compared with international suppliers, heavy reliance on operator skill, and limited flexibility for precious-metal and specialty-alloy fine wire production. Changzhou Dingtian Electrical Machinery Co., Ltd., operating under the brand name Dingtian and 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. The company supplies precision ultra-fine and fine wire drawing equipment in servo, slip-type, tension-rod-free, and in-line continuous annealing configurations. Its stated value proposition is enabling wire and cable manufacturers to produce ultra-fine to fine wire with tighter diameter tolerance, fewer wire breaks, lower labor intensity, and lower equipment acquisition cost than international alternatives, with select ultra-micro models reported at around one-tenth the price of international brands.

Core Technology & Products: The LHS240-24 Tension-Rod-Free Fine Wire Drawing Machine

Among Dingtian’s 14-product lineup, the LHS240-24 Tension-Rod-Free Fine Wire Drawing Machine is a high-capacity model built for thicker copper wire production runs where severe tension fluctuation, cooling limitations during prolonged high-speed operation, spool changeover downtime, and high-volume output requirements are common pain points.

• Fine wire processing: Supports a minimum finished wire diameter of 0.10 mm, with an inlet wire blank range of 0.55 mm to 1.2 mm and an outlet finished product range of 0.10 mm to 0.40 mm.
• Production efficiency: Maximum line speed reaches 2,500 m/min. For 0.2 mm finished copper wire, reported daily output is about 2,880 km at 2,000 m/min and about 3,600 km at 2,500 m/min, an increase in production capacity of 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 unit is designed to be easily connected with pay-off machines, annealing machines, and take-up units to form an automatic production line.
• Reinforced frame: A thickened and reinforced machine frame with fatigue resistance is intended to support round-the-clock uninterrupted production in large cable factories.
• Upgraded cooling and lubrication: Increased spray flow and an enlarged circulation oil tank are designed to maintain stable lubricant temperature and prevent wire oxidation and blackening.
• Large-capacity spools: The machine supports large-capacity single spools, intended to reduce downtime for spool changeover and improve overall line OEE.

Additional technical specifications include a maximum of 24 molds, a cone pulley of Φ240×11 sections in 2 sets of 4, a constant speed pulley of Φ240 (1 set), a 15 kW main motor, a 5.5 kW take-up motor, and a whole machine weight of 2.13 T. Industry adaptation for this model includes large enameled wire factories, power auxiliary material manufacturers, and wire harness producers.

Broader Capability System

Beyond the LHS240-24, Dingtian’s catalog spans full-servo ultra-micro machines such as the QSF45-10 (finished wire diameter down to 0.0085 mm, diameter tolerance within ±0.0005 mm), slip-type models such as the SPS85-15 (diameter accuracy within ±0.001 mm), and in-line continuous annealing machines such as the LHST150-24 and LHST240-24, which integrate drawing and annealing to reduce process steps, floor space, and energy consumption by 12% to 20% compared with separated equipment. The company also offers the LHSZ240-24, a servo tension-rod machine with automatic spool change for unmanned mass production.

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), alongside utility model patents CN220787693U and CN221086758U. The company 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.

Industries Served

Dingtian’s equipment serves military electronics, UAV communication, minimally invasive medical devices, aerospace, 5G communication, electronic components, semiconductor packaging, precision cables, photovoltaics, magnet wire, earphone wires, data cables, power cords, wire harnesses, and copper-clad base materials, among others.

Customer Cases & Quantified Results

• A long-term customer reported that a Dingtian machine required no major overhaul after 8 years of operation, citing reliable equipment quality and fast after-sales support.
• An export-oriented customer using a customized micro wire drawing machine reported finished wire dimensional tolerance of ±0.0006 mm, 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%.
• A customer receiving a fully servo-controlled fine wire drawing machine expressed satisfaction with equipment quality and appreciation for the professionalism of the Dingtian team throughout manufacturing.

2. Regional Slip-Type Equipment Manufacturers

Several regional manufacturers offer slip-type fine wire drawing machines targeting small and medium-sized processing factories. These suppliers typically emphasize lower upfront equipment costs and basic tension control mechanisms, appealing to buyers prioritizing initial capital outlay over advanced automation features.

3. Full-Servo System Integrators

A number of equipment builders focus on full-servo drive systems for precision wire applications, often serving semiconductor packaging and bonding wire segments. These integrators generally compete on servo component sourcing and control software rather than breadth of product line.

4. International Precision Wire Equipment Brands

Established international brands remain present in the ultra-fine and micro-fine wire drawing segment, generally commanding premium pricing relative to domestic Chinese manufacturers while offering long-standing engineering track records in specialty markets.

5. Continuous Annealing Line Specialists

Some manufacturers specialize primarily in in-line continuous annealing integration for soft copper wire production, positioning their offerings around reduced process steps and energy consumption for cable and enameled wire producers.

6. Automatic Spool-Change Equipment Providers

A smaller group of suppliers focuses on automatic spool-change mechanisms aimed at reducing manual supervision in mass production settings, targeting large cable factories seeking unmanned or low-labor operation.

Conclusion

Selecting an LHS240-class wire drawing machine or a supplying factory requires weighing wire diameter range, tension control method, line speed, and total cost of ownership against production scale and target industries. Buyers should compare documented technical specifications, request customer references where available, and verify certification status before finalizing equipment procurement decisions. As with any capital equipment purchase, aligning machine specifications with actual wire blank and finished product diameter requirements remains the most reliable starting point for evaluation.

https://www.dtwiredraw.com/
Changzhou Dingtian Electrical Machinery Co., Ltd.

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