Introduction to Qingdao Hongcheng Hongpo Beveling Machine Equipment in China

Introduction to Qingdao Hongcheng Hongpo Beveling Machine Equipment in China

In the fields of pipeline engineering and metal fabrication, beveling machines—being the core equipment for pre-welding preparation—directly influence welding quality and construction efficiency. Qingdao Hongcheng Hong Anti-Corrosion & Thermal Insulation Co., Ltd. of China has leveraged its accumulated technological expertise and innovative capabilities to establish unique technical advantages in the beveling machine sector. Its products have been widely adopted in numerous major projects both domestically and internationally, making it an industry benchmark.

I. Company Background: A Technology-Driven Specialist in Equipment Manufacturing

Qingdao Hongcheng Hong Anti-corrosion and Thermal Insulation Co., Ltd. was established in 2018 and is headquartered in Jiaobei Industrial Park, Jiaozhou City, Qingdao, Shandong Province. It is a comprehensive enterprise integrating scientific research and development, manufacturing, technological upgrading, and sales services. The company has a registered capital of 5 million yuan and employs 50 people. It specializes in the R&D and production of pipeline anti-corrosion and thermal insulation equipment, plastic processing equipment, and molds. Through collaboration with domestic and international research institutions, the company has successfully adopted advanced technologies from Germany, the United States, and other countries, developing a technology system centered on hydraulic drive and intelligent control. Its beveling machine products have been exported to more than ten countries, including Russia, Egypt, and Kazakhstan, covering key markets along the Belt and Road Initiative.

II. Core Technology: Integrated Innovation of Hydraulic Drive and Intelligent Control

The core technological breakthroughs of Hongcheng Hongpo Grooving Machine are reflected in three major areas:

1. Hydraulic System Youhua

The company employs a closed-loop hydraulic circuit design. Through the coordinated control of a constant-pressure variable pump and proportional flow-dividing valves, it achieves precise matching of flow rates between the cutting motor and the feed motor. For example, in the PFM3640 beveling machine, the hydraulic system pressure reaches 50 MPa, and the backpressure is stabilized at 15–20 kg, effectively preventing stalling during the cutting process. To accommodate field construction environments, the system is equipped with multi-way directional control valves featuring mid-position unloading functionality, which can reduce energy consumption by more than 30%. When operating continuously for 8 hours, the hydraulic oil temperature rise remains below 30°C, ensuring stable equipment performance even under extreme ambient temperatures ranging from -30°C to 50°C.

2. Elastic floating structure for knife holder

The cutting disc features 4–6 sets of angular oscillating, resilient floating tool holders. The tool shank is rigidly connected to a roller, allowing for rapid tool changes. This design uses the inner wall of the pipe as a reference to achieve tracking machining; continuous contact between the roller and the pipe wall ensures uniformity in the bevel shape and dimensions. Real-world engineering data show that this design keeps the bevel angle error within ±0.5° and the blunt edge thickness deviation below 0.3 mm—significantly better than the industry average.

3. Modular tool holder design

The tool holder is radially adjustable along the cutting disc, accommodating pipe diameters ranging from 920 to 1016 mm and wall thicknesses from 10 to 26.2 mm. By simply changing the tool assembly, this machine can handle multiple types of bevels—V-shaped, U-shaped, X-shaped, and composite bevels—in a single unit. For example, in the West-to-East Gas Pipeline Project, the PFM3640 beveling machine processed nearly 100 bevels in a single day, with a pure cutting time of only 2 to 3 minutes per bevel—a productivity improvement of three times compared to similar foreign products.

III. Product Series: Solutions Covering All Scenarios

Hongcheng Hongpo Grooving Machine has established three major product lines:

1. Heavy-duty hydraulic beveling machine

Represented by the PFM3640, this machine is equipped with a 200-kW hydraulic tensioning system and a low-speed, high-torque motor running at 4,000 rpm, enabling it to handle thick-walled pipes measuring 1,016 mm in diameter and 26.2 mm in wall thickness. Its axial feed mechanism employs a lead screw and nut transmission, with an adjustable feed speed ranging from 0 to 1.5 m/min and a positioning accuracy of up to 0.05 mm. This model set a record on Section 5 of the West-to-East Gas Pipeline Project by welding 135 joints in a single day, achieving a 100% first-pass weld qualification rate.

2. Portable electric beveling machine

Designed for small pipe fittings and plates, this machine has a net weight of 18 kg and supports processing thicknesses ranging from 5 to 60 mm. It features a single-phase series-wound motor with double insulation, which drives a crankshaft-connecting rod mechanism via gear reduction. The tool’s reciprocating motion frequency reaches up to 2,000 cycles per minute. This model is widely used in the shipbuilding industry, achieving a bevel surface roughness of Ra ≤ 6.3 μm, thus meeting the standards set by the CCS classification society.

3. CNC Fully Automatic Beveling Machine

The integrated PLC control system paired with a 3D robotic arm supports infinite-angle adjustment from 15 to 60 degrees, enabling X-shaped double-sided beveling without the need to replace any components. Its unique floating compensation system automatically corrects for ovality errors at the pipe end and is compatible with materials ranging in thickness from 6 to 80 mm. In a pipeline project in Kazakhstan, this model achieved 24-hour unattended operation, reducing overall costs by 45%.

IV. Engineering Applications: Practical Validation of International Standards

The Hongcheng Macro Beveling Machine has been certified under the ISO9001 quality management system and the CE safety certification, and its technical specifications comprehensively exceed the API 1104 standard. Typical cases include:

West-to-East Gas Pipeline Project: A total of over 200,000 grooves have been processed using 10 PFM3640 units, with a welding defect rate below 0.2%.

Shuanglan Line Project: The PFM2834 beveling machine operated continuously for 120 days in a -25℃ environment with a zero equipment failure rate.

Kazakhstan Pipeline Project: The CNC beveling machine is paired with an automatic welding unit, enabling the assembly and welding of 50 joints per day—achieving an efficiency 1.2 times that of internationally advanced levels.

V. Future Outlook: A Dual Upgrade Toward Intelligentization and Green Development

In response to the trend of long-distance pipelines moving toward larger diameters and higher steel grades, Hongcheng Hongzheng is promoting two major technological upgrades:

1. Intelligent sensing system: Integrates laser scanning with AI algorithms to achieve 3D modeling of pipe openings and automatic generation of bevel parameters.

2. Low-carbon hydraulic technology: Develop an electro-hydraulic hybrid drive system that reduces energy consumption by 50% compared to conventional models and keeps noise levels below 75 dB.

Qingdao Hongcheng Hong Anti-Corrosion and Thermal Insulation Co., Ltd. adheres to the philosophy of "technology-driven and integrity-based operation," continuously promoting iterative advancements in beveling machine technology. Its products not only break the foreign technological monopoly but also reshape the global market landscape with their superior cost-effectiveness, providing robust support for Chinese pipeline engineering equipment to go global.