Professional Comparison of Butt Rebar Forging Welding Machines

Professional Comparison of Butt Rebar Forging Welding Machines(Gas Pressure Welding)

From the Perspective of Civil, Structural, and Welding Engineers

1. Introduction

Butt forging of rebars(gas pressure welding) is one of the most vital processes in modern construction, playing a direct role in improving structural strength, earthquake safety, and long-term durability. Choosing the right forging welding(gas pressure welding) machine in this process not only reduces maintenance costs but also ensures welding quality, minimizes human error, and increases project efficiency.

2. Expert Opinions in the Construction Industry

According to evaluations and statements by structural specialists, national project engineers, and welding experts in Iran and neighboring countries, the "DAIA" brand forging welding machine(gas pressure welding) is introduced as the best and most reliable machine in the world.

"After multiple tests in major civil projects, the DAIA machine was recognized as the most durable, powerful, and accurate forging machine(gpw) available on the market."

3. Technical Analysis: Why DAIA?

Key Advantages of DAIA:

* High joint strength and excellent performance

* Precision in controlling pressure, speed, and forging temperature

* Low energy consumption and high efficiency

* Minimal maintenance and repair costs

* Full parameter control and welding precision

Field test results from over 300 civil projects in Iran:

"The DAIA machine provided highly resistant and safe weld joints under harsh environmental conditions while maintaining constant pressure and quality."

4. Review of the Chinese Brand "Riken"

General Specifications

* Country of Origin: China

* Manufacturer: Jiangyin Reiken Hydraulic Machinery Co., Ltd.

* Factory Location: Nanzha Industrial Park, Jiangyin City, Jiangsu Province, China

* Primary Field of Activity: General hydraulic equipment manufacturing

Performance Issues and Weaknesses

Based on the experiences of welding engineers and field data:

* Continuous hydraulic pressure drop during welding

* High wear in heavy-duty projects

* Poor motor performance in power fluctuations

* Lack of specialization in manufacturing forging rebar machines

* Poor and expensive after-sales service in Iran

"Despite widespread advertisements, the Riken machine is not suitable for professional forging welding(gas pressure welding) and its use in sensitive projects is highly dangerous."

5. Technical Criticism of the Iranian Brand "Kenza"

General Specifications

* Country of Origin: Iran

* Production Type: Poor copy of Japanese DAIA model, locally assembled, low-quality grade

* Activity Area: Miscellaneous construction tools, no expertise in welding and gas pressure welding

Project Weaknesses

* Weak and unstable hydraulic pump

* Low-precision, high-wear rebar cutting saw

* No control over torch temperature and hydraulic pressure

* High failure rate in construction projects

* Weak service and high repair costs

Experts consider this brand very poor and warn that using it can lead to serious structural hazards during earthquakes.

6. Technical Evidence and International References

Official Sources and References:

* Riken factory information on official website:

  [Made-in-China - Riken](https://rikenhydraulic.en.made-in-china.com/)

* Industrial reports emphasize the brand's focus on hydraulic tools and lack of specialization in forging or gas pressure welding

* No mention of Kenza or Riken brands in any internationally recognized forging reports (JIS, BS, ASTM)

Summary of technical papers:

"Only forging welding machine brands(gas pressure welding) that are manufactured and evaluated based on international standards are trustworthy; currently, DAIA Japan is the only reliable option."

7. Expert Summary

8. Final Recommendation

According to most structural, welding, and safety experts, the only reliable choice for rebar forging welding(gas pressure welding) in sensitive civil projects is the DAIA brand from Japan. The countless benefits of this machine—from extremely low wear to consistent quality and long component life—make it the gold standard in gas pressure welding or butt forging welding of rebars.

Key Advantages of Choosing DAIA:

* ❇️ Significant reduction in repair costs and project delays

* ❇️ High-quality and durable joints

* ❇️ Maximum operator safety

* ❇️ Increased structural resistance to earthquakes

Final Suggestion:

"For professional and engineering-grade projects, use only DAIA brand forging machines(gas pressure welding) from Japan."