In modern bar and section steel rolling lines, stable, efficient, and reliable bundling equipment directly determines production rhythm, finished product quality, labor cost, and site safety. As a professional metallurgical equipment supplier, we provide a full set of HJXD‑650 fully automatic section steel bundling machine for rolling mills, steel processing plants, and automated upgrading projects. This equipment integrates mechanical structure, hydraulic drive, and electrical PLC control, realizing fully automatic bundling for heavy‑duty steel bundles with high strength, high consistency, and long‑term stability.
1. Application Background & Market Demand
With the continuous improvement of rolling line automation and production capacity, traditional manual bundling or semi‑automatic bundling can no longer meet modern production requirements: high labor intensity, low efficiency, unstable bundling quality, easy loosening during transportation, and high potential safety hazards.
Fully automatic bundling machines have become standard supporting equipment for:
- Section steel rolling lines
- Bar rolling lines
- Pipe production lines
- Steel processing and distribution centers
Our bundling machine is specially designed for 6–12 meter fixed‑length products, supporting large‑size bundles up to 650×650 mm and heavy bundles of 4–7 tons, perfectly matching high‑output rolling line production rhythm.
2. Core Equipment Overview & Technical Positioning
Model: HJXD‑650
This machine is a fully automatic heavy‑duty bundling equipment, mainly used for automatic bundling of finished section steel, round steel, steel pipes, and profiles. It adopts a patented hydraulic twisting structure, which is stable, durable, and low in failure rate. It can realize long‑term stable operation under high temperature, high dust, and heavy load on site.
Main Purpose
- Installed in the middle of the bundling conveyor
- Interlocked with the rolling line production system
- Automatically complete: wire feeding → bundling → tightening → twisting → cutting → knot flattening
- Suitable for high‑temperature materials ≤600℃
3. Key Technical Parameters & Performance Indicators
Our equipment adopts strict design standards and manufacturing processes, with clear and reliable indicators:
- Bundle size: 300×300 mm – 650×650 mm
- Bundle weight: 4000 kg – 7000 kg
- Applicable products: section steel, round bar, steel pipe, various profiles
- Fixed length: 6 m – 12 m
- Bundling wire: Φ6–8 mm hot‑rolled wire (Q195)
- Twisting angle: ≥630°
- Single bundling time: 8–15 seconds
- Bundling success rate: ≥99.8%
- Control mode: remote automatic + local manual
- Power supply: AC 380V, 50Hz, three‑phase four‑wire
- Total power: about 18 kW
- Working temperature: -10℃ – +40℃
- Equipment weight: approx. 5 tons per set
These parameters ensure that the equipment can meet the long‑term continuous operation of large rolling mills.
4. Structural Composition & Working Principle
The whole machine is composed of three core systems: mechanical system, hydraulic system, electrical control system.
① Mechanical System
- Wire storage mechanism: dual‑cylinder synchronous drive, stable wire storage and drawing
- Lifting frame & moving carriage: automatically adapt to different bundle sizes
- Wire feeding system: stable conveying, not easy to jam
- Wire twisting mechanism: patented hydraulic structure, no “triangular area”
- Knot flattening device: make the knot close to the steel bundle, neat and firm
- Moving base: can move in/out of the line for easy maintenance
② Hydraulic System
The hydraulic system is the power core of the whole machine:
- Working pressure: 9–14 MPa (according to wire diameter)
- Oil pump: quantitative piston pump, high pressure and long life
- Oil tank volume: 340L
- Cooling mode: fan cooling
- Pipeline: precision galvanized seamless pipe
- Cylinder seal: imported parts, low leakage, long life
The hydraulic system provides strong tightening force to ensure that bundles will not loosen during hoisting and long‑distance transportation.
③ Electrical Control System
- Controller: Siemens PLC
- Operation mode: automatic / manual
- Equipped with main console + local operation box
- Status indication, fault alarm, real‑time monitoring
- Interlock with rolling line PLC, supporting remote start
The control system is stable, friendly, easy for workers to operate and maintain.
5. Core Advantages & Technical Highlights
Compared with similar equipment, our bundling machine has obvious competitive advantages:
- Patented twisting structure
- Strong hydraulic tightening force
- Low operating cost
- Automatic adaption to bundle size
- Knot flattening function
- Stable wire feeding, not easy to jam
- High protection, suitable for harsh environment
- Easy installation & maintenance
6. Quality Control & Manufacturing Standards
All equipment is designed and manufactured in strict accordance with national and industrial standards, including:
- GB/T 13384 General conditions for electromechanical product packaging
- GB/T 700 Carbon structural steel
- GB/T 1591 High strength low alloy structural steel
- GB/T 11345 Ultrasonic testing for steel welds
- JB/T 5000 Heavy machinery general technical conditions
- And many other metallurgical machinery standards
We carry out full‑process quality control: raw material inspection, parts processing, welding testing, assembly, pressure testing, no‑load test run, load test run, factory inspection.
7. Scope of Supply & Service Support
As a professional equipment supplier, we provide complete supporting services:
Supply Scope
- Complete set of automatic bundling machine
- Hydraulic station
- Electrical control cabinet & operation box
- Standard accessories & tools
- Spare parts list
Technical Data
- Foundation drawing
- Electrical schematic
- Hydraulic schematic
- Operation & maintenance manual
- PLC program
- Certificate of conformity
Technical Service
- Pre‑sale: scheme design & parameter confirmation
- In‑sale: production schedule follow‑up
- After‑sale: installation guidance, commissioning, on‑site training
- Warranty: 12 months after commissioning (max 18 months after delivery)
8. Application Value & Customer Benefits
For rolling mills and steel enterprises, this equipment brings clear value:
✅ Improve bundling efficiency: reduce manual dependence
✅ Stabilize product quality: neat, firm, not loose
✅ Reduce labor cost: one machine replaces multiple workers
✅ Improve site safety: less manual work in high‑temperature area
✅ Enhance production automation level: interlock with rolling line
✅ Reduce failure rate: stable structure, long service life
✅ Lower operating cost: ordinary steel wire, low consumption
9. Conclusion
HJXD‑650 fully automatic section steel bundling machine is a high‑efficiency, high‑reliability, and high‑cost‑performance supporting equipment for modern bar and section rolling lines. It can help enterprises realize automation upgrading, improve production efficiency, reduce costs, and enhance market competitiveness.
We have rich experience in design, manufacturing, and on‑site commissioning. We can provide customized solutions according to your rolling line layout, bundle size, output, and control requirements.
If you are planning:
- New rolling line construction
- Old line automation upgrading
- Replacing old bundling machines
- Improving bundling efficiency and quality
Welcome to contact us for technical communication, scheme design, and cooperation discussion.
