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China Zhangjiagang Hengli Technology Co.,Ltd
Zhangjiagang Hengli Technology Co.,Ltd
In 2001,we set up our company,Hengli.Zhangjiagang Hengli Technology Co.,Ltd is specialized in developing and producing LG series and LD series cold pilger mill, straightener machine, cold drawing machine and so on.Cold pilger mill is our main product.We self-designed and manufactured LG30,LG60,LG90,LG120,LG180 and LG250 type series of cold pilger mill in 2003,and developed LG30HGL high-speed rolling mill (160 times/min) in domestic in 2010,so filled the domestic blank. In 20011, we developed ...
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QUALITY CATEGORY A & CATEGORY B FACTORY

Roller Type  4WT Pilger Seamless Pipe Manufacturing Machinery Video

Roller Type 4WT Pilger Seamless Pipe Manufacturing Machinery

Hollow OD:25-48mm

Hollow WT:2-5mm

Finished Tube OD:16~35mm

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Metal Pipe Reducing Shrinking Machine Tube End Forming Steel Video

Metal Pipe Reducing Shrinking Machine Tube End Forming Steel

Machine Type:Pipe End Forming Machine

Max.Shrinking Capacity (Diameter)(mm):80 Mm

Condition:New

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Steel Pipe Reduction Shrinking Machine 80mm Conical Square Taper Video

Steel Pipe Reduction Shrinking Machine 80mm Conical Square Taper

Name:Shrink Wrapping Machinery

Time For One Reduction:4-6S

Machine Type:Shrinking Machine

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WHAT CUSTOMERS SAYS
Christian Garcia
2014-04-15 10:03:46
When you choose your partners, you increase the likelihood of success. That’s why we choose Hengli Machinery.
Rajiv
2014-04-15 10:00:57
We trust in Hengli Machinery for its stable quality and perfect service. Will keep a long-term cooperation withHengli Machinery.
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Precision Stainless Steel Cold Rolling Equipment Gains Global Popularity as LG60 Production Line Orders Surge
Precision Stainless Steel Cold Rolling Equipment Gains Global Popularity as LG60 Production Line Orders Surge
As the global demand for high-precision stainless steel tubes continues to rise across industries such as automotive, medical, energy, and instrumentation, advanced manufacturers are actively upgrading their production lines to meet international standards. Among the most favored solutions in this transition is the LG60 cold rolling tube mill—a heavy-duty, high-precision system designed specifically for large-diameter, thick-wall pipe manufacturing. Over the past year, orders for the LG60 production line have seen a significant surge, particularly from clients in India, Russia, Southeast Asia, the Middle East, and Eastern Europe, reflecting strong confidence in its capabilities. ✅ Why Is LG60 in High Demand? The LG60 model is built for stainless steel and alloy pipes with: Outer Diameter (OD): 30–80mm Wall Thickness: 2.5–10mm Length: up to 15 meters It delivers: OD tolerance within ±0.05mm Surface roughness Ra ≤ 0.8μm Excellent wall thickness uniformity Automated feeding, lubrication, and PLC control These features make LG60 especially suitable for industries where strength, accuracy, and flawless finish are non-negotiable. ✅ Export Success and Global Recognition Thanks to its robust structure and intelligent operation, the LG60 line has been: Installed in heat exchanger tube plants across India and Vietnam Adopted by energy and oil equipment manufacturers in the Middle East Preferred by OEM automotive pipe suppliers in Eastern Europe Chosen by medical-grade stainless tube producers for export-quality production Global customers report up to 40% improvement in output stability and 30% reduction in polishing processes, helping them stay competitive in demanding markets. ✅ LG60 as a Strategic Investment For manufacturers aiming to produce: Stainless steel fluid lines High-pressure boiler tubes Precision structural tubes Export-grade medical and instrument pipes ...LG60 is proving to be a long-term, cost-effective, and scalable investment. It offers not only technical superiority but also faster ROI through automation and energy efficiency.
2025-07-21
Cold Rolling Tube Mills Become the Key Equipment for High-End Pipe Manufacturing
Cold Rolling Tube Mills Become the Key Equipment for High-End Pipe Manufacturing
As global industries move toward higher performance and stricter quality standards, metal tube manufacturers are under increasing pressure to deliver products with exceptional precision, strength, and surface finish. Whether in automotive systems, medical devices, aerospace components, or heat exchangers, the demand for high-end tubes is rapidly growing. To meet these challenges, more and more manufacturers are adopting one solution: the cold rolling tube mill production line. ✅ Cold Rolling vs. Traditional Methods Unlike traditional hot rolling or drawbench processes, cold rolling is performed at room temperature using precision rollers and automated feeding systems. This results in: Tighter dimensional control (OD tolerance within ±0.05mm) Excellent surface finish (Ra ≤ 0.8μm) Improved roundness and wall thickness uniformity Strain-hardened structure for enhanced strength and durability These features are essential for producing tubes that must perform in high-pressure, high-temperature, or high-precision environments. ✅ Applications in High-End Industries Cold rolling tube mills are now widely used in: Automotive: fuel injection tubes, brake lines, and battery cooling pipes Medical: surgical needle tubes, catheter sheaths, and stainless capillaries Energy: heat exchanger tubing for HVAC, boilers, and solar thermal systems Aerospace: lightweight alloy tubes requiring ultra-tight tolerances For these applications, traditional processing methods often fall short in either finish, roundness, or repeatability. ✅ Automation and Consistency at Scale Modern cold rolling mills—such as the LG30 and LG60 series—feature: PLC + HMI control systems Servo-driven feeding Automatic lubrication and cooling Tooling flexibility for multiple tube sizes This enables high-volume, stable, and intelligent production—ensuring that each tube meets the strictest quality standards. ✅ Trusted by Global Exporters and OEM Suppliers Manufacturers using cold rolling mills report: Up to 30% reduction in defect rates Fewer polishing or post-processing steps Increased production efficiency by 20–40% Improved acceptance for ISO, ASTM, DIN, and JIS-compliant products From India to Eastern Europe, cold rolling lines have become a core asset for companies targeting high-end export markets and OEM supply chains.
2025-07-14
Why Are Indian Heat Exchanger and Automotive Industries Investing in LG30 Cold Rolling Lines?
Why Are Indian Heat Exchanger and Automotive Industries Investing in LG30 Cold Rolling Lines?
India’s manufacturing sectors are undergoing a shift toward precision, durability, and international quality compliance. In particular, the heat exchanger and automotive industries are turning to one solution for precision tube production: the LG30 Cold Rolling Tube Mill. From fuel and brake lines to condenser coils and EGR systems, these industries demand tubes that are: Highly accurate in dimension Smooth in surface finish Strong in structure Efficient to produce in large volumes The LG30 cold rolling line has proven to be the ideal match. ✅ 1. Perfect Fit for Mid-Size Precision Tubes The LG30 cold rolling machine is specifically designed for tubes with: Outer Diameter: 15–45mm Wall Thickness: 1.2–5mm This range perfectly covers the requirements for: Automotive fuel and hydraulic lines Air conditioning heat exchanger tubes Engine cooling systems and EV battery cooling pipes ✅ 2. Smooth Finish with No Polishing Needed For heat exchanger manufacturers, internal and external smoothness is essential to ensure: High thermal efficiency Low fluid resistance Seamless bending and brazing compatibility LG30 offers Ra ≤ 0.8μm surface finish, helping eliminate the need for secondary polishing or chemical cleaning. ✅ 3. Dimensional Consistency = Assembly Compatibility In the automotive industry, even 0.1mm deviation can cause failure in assembly or leaks in pressurized systems. LG30 ensures: ±0.05mm OD tolerance Stable wall thickness throughout the tube Better concentricity and straightness This results in fewer rejections and faster assembly line integration. ✅ 4. Smart Investment for Scalable Production Compared to traditional drawbenches or hot rolling, LG30: Requires less energy Offers higher output speed Supports fully automated control via PLC + servo system Reduces manpower per shift Indian manufacturers using LG30 report: 20–30% increase in production capacity Reduced cost per unit Faster return on investment (
2025-07-07
Can Cold Rolling Replace Traditional Drawbench Technology in India’s Precision Tube Industry?
Can Cold Rolling Replace Traditional Drawbench Technology in India’s Precision Tube Industry?
As India’s pipe manufacturing sector faces growing demands for higher accuracy, better surface finish, and stronger mechanical properties, many producers are reevaluating their reliance on traditional drawbench technology. The question is increasingly being asked: Can cold rolling replace drawbenches in the precision tube segment? The answer is becoming clear—yes, and here's why. ✅ 1. Precision: Cold Rolling Delivers Superior Tolerance Traditional drawbench lines often struggle with: Inconsistent feeding Manual lubrication Variable tension and pull speeds These issues lead to: Ovality Wall thickness variation Inner surface scoring In contrast, cold rolling tube mills use synchronized, servo-controlled feeding and precision rollers to achieve: OD tolerance within ±0.05mm Excellent roundness Uniform wall thickness throughout the length This precision is crucial in medical, automotive, and heat exchanger tube applications. ✅ 2. Surface Finish: From Polishing-Required to Mirror-Ready Drawbench pipes typically require additional polishing and cleaning. Cold rolling, however, produces tubes with Ra ≤ 0.8μm surface finish directly from the machine—mirror-ready for welding, bending, or assembly. ✅ 3. Material Performance: Cold Rolling Strengthens the Tube Unlike drawbenches, cold rolling doesn’t just shape the tube—it enhances its mechanical properties: Higher tensile strength Better microstructure uniformity Improved surface hardness This means fewer downstream failures, longer-lasting products, and less material waste. ✅ 4. Automation & Labor Savings Drawbench technology is: Labor-intensive Requires frequent operator intervention Challenging to control at high speed Meanwhile, LG Series Cold Rolling Tube Mills (like LG30 and LG60) come with: PLC touch-screen controls Servo feeding Automatic lubrication Integrated safety features This enables 24/7 automated production, lower labor cost, and better operational stability. ✅ 5. Indian Market Shift: The Trend is Clear Across India, cold rolling is rapidly replacing outdated drawbench lines in factories aiming for: Export-grade pipe production ISO/ASTM dimensional conformity Medical/automotive quality compliance Clients report up to 30% reduction in rejection rate, 50% less polishing, and significantly improved batch consistency.  Conclusion: Cold Rolling Isn’t the Future—It’s Already Here For Indian precision tube manufacturers looking to stay competitive, cold rolling is not a luxury—it's a necessity.
2025-07-08
How Do Cold Rolling Tube Mills Help Indian Pipe Factories Improve Surface Finish and Dimensional Accuracy?
How Do Cold Rolling Tube Mills Help Indian Pipe Factories Improve Surface Finish and Dimensional Accuracy?
In India’s rapidly evolving manufacturing landscape, pipe factories are under increasing pressure to meet international standards for surface finish and dimensional tolerance—especially in industries like automotive, medical, instrumentation, and energy. This is where cold rolling tube mills are stepping in to deliver a measurable advantage. ✅ 1. Superior Surface Finish (Ra ≤ 0.8μm) Cold rolling is performed at room temperature using precision-ground rollers and controlled feeding systems. This method significantly reduces surface defects such as: Oxide scale Surface roughness Dimensional inconsistencies As a result, the finished tubes achieve mirror-like surfaces that require little to no post-polishing, which is ideal for medical needles, heat exchanger tubes, and polished stainless steel pipes. ✅ 2. Tight Dimensional Control (±0.05mm) Unlike hot rolling or manual drawing, cold rolling allows pipe factories to control: Outer diameter Wall thickness Concentricity Ovality This tight control leads to a more consistent product, essential for applications like hydraulic systems and precision assemblies. The use of servo-controlled feeding systems and PLC-based automation ensures minimal deviation even at high speeds. ✅ 3. Consistency Across Large Batches With cold rolling, the process is repeatable and stable, reducing variation between tubes in the same batch. This leads to: Fewer rejections Better welding compatibility More efficient downstream processing For Indian manufacturers competing in export markets, such consistency is not a bonus—it’s a requirement. ✅ 4. Cost Savings from Less Post-Processing Better finish and tolerance mean less time and money spent on: Polishing Straightening Machining Inspection rework This is why more Indian pipe factories are adopting LG30 and LG60 cold rolling tube mills—to improve both product quality and profitability. ✅ LG Series: A Trusted Solution in India Our LG30 (for 15–45mm OD) and LG60 (for 30–80mm OD) models are specifically designed for Indian factory needs. They offer: Servo feeding + automatic lubrication High-speed stability Mold flexibility for different pipe specs Indian users report: Up to 30% improvement in surface finish Up to ±0.03mm tolerance precision Significant reductions in polishing and inspection workload
2025-07-18
Why Are More Indian Customers Choosing Cold Rolling Tube Mills? Discover the LG Series Precision Pipe Solutions
Why Are More Indian Customers Choosing Cold Rolling Tube Mills? Discover the LG Series Precision Pipe Solutions
In recent years, India’s manufacturing sector has been rapidly shifting from high-volume, low-value production to high-precision, high-quality manufacturing. Industries such as automotive, medical, instrumentation, energy, and heat exchangers are demanding better performance from their metal tubes. As a result, more Indian customers are turning to cold rolling tube mills to replace traditional hot rolling or drawbench processes. ✅ Why Cold Rolling? 1️⃣ Superior Dimensional Accuracy & Surface Finish Cold rolling achieves outer diameter tolerances of ±0.05mm and surface roughness of Ra ≤ 0.8μm, making it ideal for medical tubing, heat exchanger pipes, and precision stainless steel fluid lines. 2️⃣ Enhanced Mechanical Properties Cold deformation increases metal density and improves tensile strength, hardness, and pressure resistance—all without high-temperature heating, avoiding scale and grain coarsening. 3️⃣ Energy-Efficient & Eco-Friendly Cold rolling consumes significantly less energy (over 30% savings) and produces no smoke, acid waste, or heavy emissions, aligning perfectly with India’s push for green manufacturing. 4️⃣ High Automation, Lower Labor Dependency Our LG Series (LG30 / LG60) cold rolling machines come equipped with PLC control systems, servo-driven feeding, automatic lubrication, and safety features—reducing manpower requirements and boosting production stability. ✅ Hot-Selling LG Models for the Indian Market Model Tube OD Range Wall Thickness Ideal Applications LG30 15–45mm 1.2–5mm Heat exchanger tubes, automotive lines, medical needles LG60 30–80mm 2.5–10mm Thick-wall pressure pipes, hydraulic cylinders, structural pipes   ✅ Real Results from Indian Clients   Several Indian customers have successfully upgraded to LG Series cold rolling lines, replacing their old drawbench systems. Benefits achieved include: +15% increase in finished product yield ~30% reduction in polishing cost 2 fewer workers per production line Tube lengths extended up to 15 meters, meeting international export standards ✅ Conclusion: Cold Rolling Is the Future of Precision Tubing in India For Indian manufacturers aiming to scale internationally, cold rolling is not just an upgrade—it’s a strategic leap. With outstanding performance, consistency, and sustainability, the LG Series cold rolling mills are becoming the preferred solution across India.
2025-07-22
Why Are More Indian Manufacturers Choosing Cold Rolling Tube Mills for Precision Pipe Production?
Why Are More Indian Manufacturers Choosing Cold Rolling Tube Mills for Precision Pipe Production?
✅ Introduction In recent years, India’s industrial sectors—especially automotive, medical, instrumentation, and energy—have seen increasing demand for high-precision metal pipes. As a result, more Indian manufacturers are turning to cold rolling tube mills to enhance performance, precision, and production efficiency. ✅ 1. Precision and Surface Finish Cold rolling delivers tubes with ±0.05mm tolerance and mirror-level surface finish (Ra ≤ 0.8μm). This is essential for applications in heat exchangers, medical devices, and braking systems. ✅ 2. Enhanced Mechanical Properties Cold rolling improves grain density without heating, offering higher tensile strength, better hardness, and roundness. Ideal for industries with strict mechanical performance requirements. ✅ 3. Energy Saving & Eco-Friendly No need for high-temperature heating means lower energy use and less pollution. It supports India’s shift toward green manufacturing and sustainability. ✅ 4. High Automation, Less Labor Modern lines like LG30 and LG60 come with PLC controls, auto feeding, and lubrication systems. They ensure consistency while reducing manual operation. ✅ Market Spotlight: LG Series in India Our LG30 (15–45mm OD) and LG60 (30–80mm OD) machines are widely adopted by Indian makers of heat exchanger tubes, hydraulic pipes, and pressure lines. ✅ Looking Ahead Cold rolling is becoming the preferred choice for Indian factories focused on high-quality tube production. With stricter export standards, the shift toward precision + efficiency continues to accelerate.
2025-07-14
the comparison between Cold Rolling Tube Mills and Hot Rolling Processes
the comparison between Cold Rolling Tube Mills and Hot Rolling Processes
Cold Rolling Tube Mill vs Hot Rolling Process Criteria Cold Rolling Tube Mill Hot Rolling Process Application Scope Precision stainless steel tubes, small-diameter & thin-wall tubes Large-diameter, thick-wall pipes, structural or industrial pipes Surface Quality Excellent finish (Ra ≤ 0.8μm), no oxide scale Surface with oxide scale, requires pickling or polishing Dimensional Accuracy Tight tolerance (±0.05mm for OD and WT) Wider variation, often needs secondary machining Mechanical Properties Controllable strength and hardness for high-spec requirements Moderate strength, good ductility but less uniform Processing Temperature Room temperature or slightly heated (1000°C), coarser grain structure Suitable Materials Austenitic stainless steel, copper, titanium, high-strength alloy Carbon steel, low alloy steel, mild steel End Use Applications Medical, automotive, electronics, food-grade, heat exchangers, aerospace Construction pipes, structural tubing, general-purpose pipelines Energy & Environmental Impact Low energy consumption, clean, low emissions High energy usage, heavy smoke and emissions Equipment Investment & Maintenance High automation, low maintenance cost Lower initial investment, higher wear for large-scale production   Summary Recommendations:   Choose Cold Rolling if your application requires high precision, smooth surface finish, and stable mechanical properties — ideal for medical, automotive, instrumentation, and food-grade tubing. Choose Hot Rolling if your goal is low-cost, large-diameter, low-precision pipes for general structural or industrial use.
2025-07-21
Main Applications of Cold Rolling Tube Mill Production Line
Main Applications of Cold Rolling Tube Mill Production Line
Main Applications of Cold Rolling Tube Mill Production Line Precision Stainless Steel Tube Manufacturing Medical needle tubes, syringe tubes, surgical instrument tubes Laboratory and instrumentation capillary tubes Food-grade sanitary tubes, beverage lines, and dairy pipelines Automotive Industry Tubing Brake lines, fuel pipes, high-pressure A/C tubes Exhaust system stainless steel pipes, sensor protection tubes Heat Exchanger Tubes Used in HVAC systems, boilers, chemical heat exchangers (U-bend tubes, spiral tubes, etc.) Widely applied in petrochemical, power generation, and industrial energy systems Structural & Mechanical Tubes Hydraulic cylinder tubes, oil cylinder tubes, pneumatic system pipes Structural support tubes requiring high strength and internal precision Aerospace & Energy Sector High-temperature alloy tubes, corrosion-resistant titanium alloy tubes Condenser tubing for nuclear, wind, and thermal energy equipment Electronics & Communication Micro Tubes Mobile phone motor sleeves, optical fiber protective tubes, micro probe housings  Advantages Compared to Other Processes: Cold rolling tube mills offer superior performance over hot rolling or cold drawing methods: High dimensional accuracy (tight tolerance on OD and WT) Excellent surface finish (ideal for polishing, pickling, or electrolysis) High material density (no internal voids or slag inclusion) Stable mechanical properties (customizable hardness and ductility)
2025-07-21
How to Choose a Precision Stainless Steel Tube Cold Rolling Mill?
How to Choose a Precision Stainless Steel Tube Cold Rolling Mill?
1. Define Key Parameters Before selecting a suitable cold rolling mill for stainless steel tubes, it’s essential to confirm the following technical requirements: Finished Tube Outer Diameter (OD): e.g., 15–45mm Wall Thickness (WT): e.g., 1.2–5mm Tube Length Requirements: Standard length, e.g., up to 15 meters Material Type: Austenitic stainless steel such as 304, 316L, 310S; also check if you need compatibility with titanium, copper, or alloy steel Production Output: Daily or monthly output target; whether you need mass production or small-batch high-precision production Surface Quality Requirements: High surface finish for medical, instrumentation, or food-grade applications Flexibility Needs: Frequency of size switching in production 2. Model Recommendation Model Suitable Tube Size (OD) Key Features Recommended Applications LG20 10–25mm Compact, high precision, low cost Medical needle tubes, precision lab tubes LG30 15–45mm Versatile, high output, stable Automotive tubing, heat exchanger tubes LG45/LG60 30–80mm Suitable for thick-wall, large OD Heavy industry, boiler, machinery pipes   3. Key Configuration Suggestions   To ensure stability and efficiency in production, we recommend equipping your rolling mill with the following: PLC Control + Touch Screen: For easy operation and automatic monitoring High-Precision Servo Feeder: Ensures consistent feeding stroke length Automatic Lubrication System: Reduces wear and maintenance frequency Cooling System for Rollers: Prevents thermal deformation during high-speed operation Fast Mold Change System: Supports quick switch between tube sizes Dust-Free Protective Covers: For food-grade or cleanroom environments 4. Selection Tips Precision First: For precision stainless steel tubes, dimensional tolerance and surface roughness matter more than speed. Material Compatibility: Select roller materials and hardness levels suitable for your specific stainless steel grade. Plan for Flexibility: If you're producing multiple sizes, choose models that allow quick adjustments and tool changes. Future-Proofing: Consider upgrade options or add-on automation features for future capacity expansion. Stable Power Supply: Ensure the facility meets the power and space requirements for full-load operation.
2025-07-14
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