Shandong Zhongji Luyuan Machinery Co., Ltd., established in 2016 with a registered capital of RMB 50 million, brings enterprise-grade reliability to modern construction with its advanced Steel Bar Thread Rolling Machine. This CNC-controlled gear changes rebar preparing through cold-rolling innovation, making exact screw strings on ribbed strengthening bars extending from Φ16 to Φ40 mm with remarkable exactness of ±1 mm/m. Preparing at speeds up to 90 m/min with pressure driven clamping and shrewdly PLC control, our machine conveys 80–120 wrapped up pieces per hour whereas keeping up Course I join benchmarks that surpass parent metal strength.
Trusted by China Railroad Bunch, CRCC, and CSCEC over about 100 nations, our arrangement kills welding insecurity and diminishes fabric squander essentially. The strong 4 KW primary engine combined with stepless nourish alteration guarantees nonstop 24-hour operation in requesting foundation projects.
Modern development requests quicker, more secure, and more dependable associations than conventional strategies can give. You confront steady weight to meet tight due dates whereas guaranteeing auxiliary judgment in high-rise buildings, bridges, and seismic zones.
Traditional welding makes bottlenecks on your location. It requires talented welders, postures fire risks in limited spaces, and produces conflicting joint quality influenced by climate conditions. String cutting squanders profitable fabric and debilitates the steel's fiber structure.
Our threading arrangement addresses these basic torment focuses straightforwardly. By utilizing cold-rolling innovation, you keep up the persistent grain structure of your rebar, coming about in associations more grounded than the base metal itself.
| Parameter | Specification |
|---|---|
| Model | Type 600 |
| Sawing Width | 600 mm |
| Diameter Range | Φ16–Φ50 mm |
| Conveying Speed | 90 m/min |
| Length Range | 1.5–12 m |
| Length Tolerance | ±1 mm/m |
| Feed Speed | Stepless adjustment |
| Clamping Method | Hydraulic |
| Main Motor Power | 4 KW |
| Oil Pump Power | 3 KW |
| Cooling Pump | 60 W |
| Total Installed Power | 19 KW |
| Overall Dimensions (L×W×H) | 29000 × 3800 × 2450 mm |
| Power Supply | 380V / 50Hz / 3-phase |
| Control System | CNC + Digital Touch Panel |
Precision You Can Depend On
Your extend determinations request precision. Our machine conveys string profiles assembly 6h/7h resilience levels, confirmed through GO/NO-GO ring gages. The pressure driven clamping framework holds rebar immovably whereas rolling heads make uniform strings without tearing or deficient formation.
Exceptional Handling Efficiency
Time rises to cash on development destinations. With handling speeds coming to 90 meters per miniature and yield of 80–120 pieces hourly, you'll meet forceful venture timelines. The PLC brilliantly control with touch screen operation permits speedy parameter changes when exchanging between distinctive rebar sizes.
Superior Joint Strength
Cold-rolling innovation jam your steel's atomic structure. Not at all like cutting strategies that separate metal filaments, our handle work-hardens the surface whereas keeping up inner coherence. This comes about in associations surpassing 1.1 times the base metal's surrender quality, fulfilling JGJ107-2016 mechanical grafting standards.
Labor and Fetched Savings
You require as it were one administrator to administer the whole computerized line. The coordinates bolstering, rectifying, length setting, and cutting framework diminishes your labor costs drastically whereas disposing of human mistake in measurements.
Versatile Application Range
Whether you're working with HRB400 or seismic-grade HRB500E rebar, our machine handles different details. Fast kick the bucket changes let you handle diverse pitch sizes and distances across, from Φ16 to Φ40 mm, without long downtime.
Built for Nonstop Operation
Construction plans do not halt. Our heavy-duty steel outline development and vigorous gearbox bolster 24/7 ceaseless generation. The water-soluble coolant framework avoids overheating, whereas the moo disappointment rate guarantees your timeline remains on track.

High-Rise Construction Projects
When building vertical structures, you need reliable connections for load-bearing columns. Our Steel Bar Thread Rolling Machine creates joints with exceptional tensile strength and seismic resistance, critical for structures facing wind loads and ground motion.
Bridge and Infrastructure Engineering
Bridge piers and cross-beams endure heavy dynamic loads and constant vibration. The threaded connections produced by our equipment provide the structural reliability your infrastructure demands, performing consistently under stress.
Tunnel and Subsurface Applications
Confined underground spaces present unique challenges. Welding becomes hazardous due to ventilation restrictions and fire risks. Our threading solution eliminates these concerns while maintaining precision even in humid geotechnical conditions.
Seismic Zone Development
In earthquake-prone regions, connection integrity can mean the difference between structural survival and catastrophic failure. The cold-rolled threads maintain ductility while providing strength that traditional welding cannot guarantee during seismic events.

Your project's safety depends on consistent quality. We implement rigorous inspection standards at every stage:
Thread profile accuracy undergoes verification using specialized ring gauges. Surface integrity checks identify any burrs, tears, or incomplete threads before products leave our facility. Random samples face destructive tensile testing to confirm they achieve 1.1 times the specified yield strength.
Our rolling wheels maintain HRC 60-65 hardness, ensuring longevity when processing high-grade steel. This attention to component quality translates directly to reliable performance on your job site.

Q: What causes rough or torn thread surfaces?
A: This typically results from insufficient coolant flow or worn peeling blades. Ensure you're using high-quality water-soluble lubricant and inspect blades regularly. Proper maintenance prevents surface defects and extends die life.
Q: How long do rolling wheels last?
A: Quality dies process approximately 3,000 to 5,000 thread ends, depending on rebar grade. HRB400 allows longer life than harder HRB500. Track your output and schedule replacements proactively to maintain quality.
Q: Can the machine handle different pitch standards?
A: Yes. By changing rolling wheels and adjusting internal spacers, you can accommodate various international pitch requirements. This flexibility makes the Machine suitable for projects following different regional specifications.
Q: Why do some finished threads show tapering?
A: Taper occurs when the rebar axis and machine head aren't properly aligned, or when the eccentric shaft loosens. Regular calibration checks and proper setup procedures eliminate this issue.
Q: Is it effective for seismic-grade HRB500E rebar?
A: Absolutely. Our high-torque gearbox specifically handles the increased hardness of seismic-resistant alloys. The 4 KW motor provides sufficient force to cold-roll threads in these demanding materials without compromising quality.
Q: What if I need to process various diameters on the same project?
A: The machine's design allows fast model changes. You can switch between Φ16 and Φ40 mm processing with minimal downtime, making it ideal for projects requiring multiple rebar sizes.
Shandong Zhongji Luyuan Machinery combines eight years of specialized experience with comprehensive intelligent manufacturing solutions. Our equipment supports landmark projects across railways, highways, nuclear power facilities, and urban development throughout Asia, Africa, and the Middle East.
We provide more than equipment. You receive complete technical support, including installation guidance, operator training, and responsive after-sales service. Our professional team ensures you maximize productivity from day one.

Ready to transform your rebar processing efficiency and quality? Contact our technical team to discuss your specific project requirements and discover how our Steel Bar Thread Rolling Machine delivers the precision, reliability, and performance your construction projects demand.
Email us at sales2@shandongluyuan.com for detailed specifications, pricing, and customized solutions tailored to your operational needs.