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Yancheng ACE Machinery Co., Ltd.
Forged Flanges And Connecting Parts Custom

Flange and connector forgings are important components for parts connection in marine and port machinery. Typically forged from materials such as high-strength alloy steel, they ensure the tightness and stability of connections.
1. Applications
Marine Field: Used for pipeline system connections and equipment assembly on ships.
Port Machinery Field: Widely applied to the connection of structural components in cranes, loading and unloading equipment, etc., ensuring the stable operation of machinery.
2. Manufacturing Process
They are formed using advanced forging techniques, with dimensional accuracy guaranteed through precision machining. Strict inspection procedures, such as flaw detection, are implemented to control product quality.
3. Advantages
Featuring excellent sealing performance, firm and reliable connections, corrosion resistance, and high-pressure resistance, they can adapt to harsh marine environments and effectively extend the service life of equipment.

About Us

ACE Group is a comprehensive enterprise group focused on the heavy industrial manufacturing sector, serving as a China Forged Flanges And Connecting Parts Supplier and Forged Flanges And Connecting Parts Company. Its business spans forging, heat treatment, precision machining, welded structures, and heavy-duty power & free chain spraying production. This integrated layout covers the core production processes of the industrial machinery industry, combining technological strength with large-scale production capabilities.

Core Subsidiaries Details:

Jiangsu ACE Energy Technology Co., Ltd.: The group's core production base, officially commencing operations in November 2025. It occupies 55 acres with a total floor area exceeding 50,018 square meters. The factory is equipped with 3-ton, 5-ton, and 15-ton electro-hydraulic hammers; 1-meter and 1.5-meter vertical ring rolling machines; energy-efficient natural gas heating furnaces; heat treatment resistance furnaces; quenching tanks; induction hardening equipment; machining centers; and other production equipment.
Yancheng ACE Machinery Co., Ltd.: Established in 2019, it occupies 20 acres with a floor area of 13,333 square meters. It possesses an integrated welding-straightening structural steel production line and a precision machining workshop.
Yancheng ACE Surface Treatment Technology Co., Ltd.: Operates a heavy-duty power & free chain large-scale powder coating production line. Focusing on professional surface treatment technology, One-time coating thickness achieves 400μm, providing reliable anti-corrosion and weather-resistant protective performance and appearance optimization solutions, enhancing the group's full life-cycle product services.

ACE Group is supported by a management team of young key members who are experienced in materials, heat treatment, machining, and surface treatment industries. They are well-versed in international and domestic standards, pioneering, and committed to innovation. The subsidiary ACE Machinery has passed TÜV Rheinland ISO 9001 Quality Management System certification, as well as ISO 14001, 45001, and 50001 system certifications. It is recognised as a Specialised, Refined, Unique, and Innovative Enterprise, a National High-Tech Enterprise, and holds a 3A-level enterprise credit rating.

Relying on integrated MES and ERP management systems, the integration of informatisation and industrialisation, data cloud storage, and aiming to build a modern, energy-efficient enterprise, the group maintains a comprehensive inspection system. It possesses inspection tools, non-destructive testing equipment, and qualified personnel, implementing strict controls from material internal quality to appearance and dimensions. All outgoing products undergo 100% inspection, adhering to the business philosophy of pursuing 100% qualified outgoing products and zero customer complaints. A CNAS-standard laboratory will be established to provide scientific testing support for quality control during production and technological R&D, thereby enhancing product quality and technological innovation.

In the future, ACE Group will continue to leverage the technical advantages and industrial synergies of its subsidiaries. Through standardised production, specialised technology, integrated services, and a stringent quality control system, it is committed to providing efficient and reliable industrial manufacturing solutions for global clients, steadily advancing towards becoming a leading comprehensive manufacturing service provider in the industry.

Certificate

  • Enterprise Credit Evaluation AAA
    Enterprise Credit Evaluation AAA
  • 2024 Specialized, Refined, Distinctive, and Innovative Enterprise Certificate
    2024 Specialized, Refined, Distinctive, and Innovative Enterprise Certificate
  • 2023 High-Tech Enterprise Certificate
    2023 High-Tech Enterprise Certificate
  •  ISO50001 Energy Management System
    ISO50001 Energy Management System
  • ISO 45001 Occupational Health and Safety Management System
    ISO 45001 Occupational Health and Safety Management System
  • ISO 14001 Environmental Management System
    ISO 14001 Environmental Management System
  • ISO 9001 Quality Management System
    ISO 9001 Quality Management System

News

Forged Flanges And Connecting Parts KNOWLEDGE

In the offshore and port machinery sectors, the integrity of a connection is the boundary between operational success and catastrophic leakage or structural failure. Forged flanges and connecting parts serve as the vital intersections for high-pressure pipeline systems and the structural skeleton of heavy-duty cranes.

At ACE Group, we understand that these components must withstand extreme hydrostatic pressure and corrosive salt-spray environments. By integrating our 15-ton electro-hydraulic forging power with precision machining and advanced surface coating, we deliver connection solutions that define industry standards for tightness and stability.


1. Structural Superiority: The Forging Advantage

Connections in marine environments are subject to "Fatigue Loading" from waves and "Thermal Stress" from varying fluid temperatures. Unlike cast or plate-cut alternatives, forged connectors possess a "contoured grain flow" that naturally wraps around the flange neck and face, significantly reducing the risk of fatigue cracking at high-stress points.

Performance Metric ACE Group Forged Connectors Standard Cast/Plate Connectors
Microstructure Refined, high-density grain Coarser, porous structure
Pressure Rating Up to 10,000+ PSI (Customizable) Limited by internal casting defects
Corrosion Defense High (Homogeneous material) Susceptible to pitting at pore sites
Connection Stability Superior (Higher elastic limit) Prone to deformation under bolt load

2. Precision Manufacturing & Quality Control

The reliability of forged flanges and connecting parts depends on the harmony between metallurgical strength and dimensional accuracy.

  • The Forging Process: At our Jiangsu ACE Energy Technology base, we utilize 1.5-meter vertical ring rolling machines and electro-hydraulic hammers to ensure every flange ring has a uniform density, eliminating the internal "shinkage" found in casting.

  • Dimensional Accuracy: Our precision machining centers ensure that flange faces achieve a flatness and roughness profile that guarantees a perfect seal with gaskets, preventing fugitive emissions.

  • Integrity Testing: We implement 100% Non-Destructive Testing (NDT). Every critical connector undergoes ultrasonic flaw detection to ensure zero internal inclusions.


3. Surface Engineering: 400μm Anti-Corrosion Shield

Marine and port machinery are in a constant battle with oxidation. Standard paint finishes often fail within months of sea-water exposure. Yancheng ACE Surface Treatment Technology provides a specialized solution:

  • Heavy-Duty Coating: Our power & free chain production line applies a high-build powder coating with a one-time thickness of 400μm.

  • Benefit: This creates a nearly impenetrable barrier against chloride ions, effectively extending the service life of the equipment by 2-3 times compared to traditional coatings.


4. Technical Specifications & Applications

Component Category Typical Materials Key Marine & Port Applications
Weld Neck Flanges F316L, A105, 42CrMo4 High-pressure shipboard pipeline systems
Structural Connectors S355J2G3, 34CrNiMo6 Crane boom joints & loading arm pivots
Blind & Slip-on Flanges Stainless/Alloy Steel Equipment assembly and inspection ports
Custom Swivel Joints High-Strength Alloy Articulated port handling equipment

5. Frequently Asked Questions (FAQ)

Q1: Why is forging preferred over casting for high-pressure marine flanges?

A: Casting is prone to internal porosity and "blowholes" which can become leak paths under high pressure. Forging compresses the metal, closing all internal voids and creating a much stronger, leak-proof part that can handle the "water hammer" effect in ship pipelines.

Q2: How does ACE Group ensure the bolt-hole alignment in large-scale connecting parts?

A: We use high-precision CNC machining centers. By maintaining strict tolerances on "PCD" (Pitch Circle Diameter) and hole concentricity, we ensure that forged flanges and connecting parts can be assembled quickly on-site without the need for forced alignment, which introduces dangerous residual stress.

Q3: Can your flanges handle "Sub-Zero" temperatures for LNG carriers?

A: Yes. By using specific low-temperature alloy steels and specialized heat treatment processes at our Jiangsu facility, we produce connectors that maintain high impact toughness even at -196°C.

Q4: What certification do ACE Group products carry?

A: Our manufacturing processes are certified under TÜV Rheinland ISO 9001. We are also recognized as a "National High-Tech Enterprise," reflecting our commitment to advanced material science and quality management.


Secure Your Connections with ACE Group

From pipeline seals to the heavy-duty joints of port cranes, our forgings provide the security your operations demand.