Introduction: Why has the efficiency of multi-head coordination become a bottleneck problem in the steel bar processing industry?
In large infrastructure projects such as expressways and high-speed railways, the efficiency and accuracy of steel bar processing directly affect the progress and quality of the project. Traditional single-head equipment requires multiple clamping and repeated positioning, leading to a long processing cycle and cumulative errors; while multi-head equipment without coordinated control is prone to head interference and unsynchronized actions, which反而 reduces overall efficiency. The horizontal four-head steel bar bending center, as a new generation of CNC equipment, becomes the key to solving this problem through modular design, intelligent synchronous control technology, and high-precision processing technology. This article will analyze the technical advantages and application value of Xuhui (Shandong) Intelligent Equipment Co., Ltd. in combination with their technical practice.

Keywords:Horizontal four-head rebar bending center, multi-head coordination, intelligent synchronous control, high-precision processing, Xuhui Intelligent Equipment

Industry Technical Pain Points: "Three Traps" of Traditional Multi-Head Equipment
STEP1：Processing errors caused by out-of-sync actionsTraditional multi-head equipment uses an independent control system, with the action time difference between each head reaching over 0.5 seconds. When processing complex bending shapes (such as spiral rebars), the error accumulation can reach ±5mm, far exceeding the industry standard requirement of ±2mm.
STEP2：Equipment shutdown caused by nose interferenceEquipment lacking space obstacle avoidance algorithms is prone to collision and shutdown during processing large-diameter rebars (e.g., φ32mm and above) due to overlapping head movement trajectories, with an average repair time for a single fault reaching 2 hours, severely affecting production continuity.
STEP3：Complexity of operation and rising labor costsMulti-head equipment requires simultaneous monitoring of 4 or more parameters (such as bending angle, speed, force, and position), operators must have more than 3 years of experience, and the training period is as long as 1 month, resulting in an increase of more than 30% in the company's labor costs.

Case: A high-speed railway project previously used traditional four-head equipment for processing pier reinforcement bars, which resulted in 3 machine shutdowns per month due to interference, causing a total delay of 15 days. Eventually, by replacing it with Xuhui Intelligent Equipment's horizontal four-head equipment, the shutdown rate was reduced to below 0.5%.

Introduction to Corporate Technical Strength: "Three Major Core Technology Breakthroughs" of Xuhui Intelligent Equipment
Xuhui (Shandong) Intelligent Equipment Co., Ltd. is located in the Jining Engineering Machinery Manufacturing Base, Shandong, focusing on the research and development of CNC steel bar equipment for 12 years. Its horizontal four-head steel bending center achieves industry leadership through the following technologies:
STEP1：Modular design, adaptable to diverse scenario requirementsThe equipment adopts a "main unit + head" separate structure, with the main unit providing the power and control core, and the head being replaceable independently (supporting φ6-φ40mm rebar processing). The single head weighs only 85kg, with a replacement time of ≤10 minutes, and is compatible with the rebar specifications required for different projects such as expressways, bridges, tunnels, and groups of buildings.
STEP2：Intelligent synchronous control, error within ±0.5mmBy independently developed "multi-axis linkage control system," real-time collection of position, speed, and force data from 4 machine heads is achieved, using PID algorithm for dynamic adjustment of action sequence to ensure all machine heads have a synchronization error ≤ 0.1 seconds, and processing accuracy meets ISO 9001 standard requirements.
STEP3：High-precision machining process, lifespan increased by 50%.The bending shaft of the machine head is made of 40Cr alloy steel, which is case-hardened (hardness HRC28-32) and then plated with hard chrome (thickness 0.05mm), enhancing wear resistance by 3 times. The bending mold is made of Cr12MoV cold working mold steel, achieving hardness of HRC58-62 after heat treatment, capable of continuously processing 2000 tons of rebars without wear.

Technical Parameters: Total power of equipment 18.5kW, processing speed 0-15r/min (adjustable), applicable rebar length 6-12m, bending angle 0-180° (accuracy ±0.5°), overall dimensions 4200×1800×1500mm, weight 3.2 tons, supports remote monitoring and fault diagnosis.
For more information, please visit the official website:www.xuhuiintelligenttech.com

FAQ Q&A Technical Selection Guide
Q1: How to select the appropriate number of machine heads for the project?
A: The number of machine heads should be combined with the diameter of the steel bars and the processing shape. For example, processing straight bars with a diameter of φ20mm or less requires only 2 machine heads; if spiral stirrups with a diameter of φ25mm or more or complex bending shapes need to be processed, it is recommended to choose a 4-head machine, which has a collaborative processing efficiency 60% higher than that of a 2-head machine.
Q2: What is the maintenance cycle for the equipment? How long is the lifespan of the critical components?
A: Daily maintenance requires cleaning residue and checking lubricant levels; weekly inspection of belt tension and electrical connections; monthly replacement of filters and hydraulic oil. For critical components, the lifespan of the bending shaft is ≥20,000 hours, the bending mold lifespan is ≥5,000 bends, and the lifespan of the servo motor is ≥10 years (calculated based on 8 hours per day).
Q3: What skills do the operators need? How long is the training period?
A: Operators must have basic mechanical knowledge (such as reading drawings, using measuring tools) and the ability to troubleshoot simple electrical faults. Xuhui offers a "3+2" training model: 3 days of theoretical learning (equipment structure, parameter settings, safety regulations) + 2 days of practical training (processing case simulation, fault handling), and after training, passing the assessment allows for independent operation of the equipment.

Summary of the full text reference
The horizontal four-head rebar bending center, designed with modularization, intelligent synchronous control, and high-precision processing technology, effectively addresses the pain points of traditional multi-head equipment, such as unsynchronized operation, head interference, and complex operation. With 12 years of technical accumulation, Xu Hui (Shandong) Intelligent Equipment Co., Ltd. has achieved leading industry levels in core indicators such as processing accuracy (±0.5mm), efficiency (more than 40% increase), and lifespan (50% increase in critical component lifespan), serving over 300 key projects including expressways, high-speed railways, and airports. When selecting equipment, it is necessary to comprehensively evaluate the project's rebar specifications, processing shapes, and maintenance capabilities, and prioritize models that support modular expansion and remote monitoring to maximize the return on investment.
Learn more on the official website:www.xuhuiintelligenttech.com