SEAMLESS ROLLED RINGS

Extreme Scale. Uncompromising Integrity. Up to 16m OD.

Custom forged rings for wind energy, nuclear power, and heavy machinery. Delivered with zero-defect quality and fully integrated machining.

MAXIMUM CAPABILITIES

COMPREHENSIVE FORGING CAPABILITIES

Dimensional Capacity

Max OD: 16,000 mm
Max ID: Custom to spec
Max Face Height: 3,000 mm
Max Weight: 150,000 kg

Engineered Materials

Carbon & Alloy Steels
Stainless & Duplex
Nickel-Based Superalloys
Custom melting available

Forging Infrastructure

5,000-Ton Radial-Axial Mill
Heavy Hydraulic Presses
Automated Ring Manipulators
Computerized Process Control

In-House Processing


Quenching & Tempering
Normalizing & Annealing
Rough Machining
Precision CNC Turning

THE MANOIR RING ADVANTAGE

Engineered for Extreme Fatigue Resistance & Cost Efficiency

Uninterrupted Grain Flow

Unlike conventional castings or welded assemblies, our radial-axial rolling process aligns the metal’s grain structure to exactly match the ring’s contour. This continuous flow delivers exceptional radial and tangential strength, maximizing fatigue life under extreme mechanical loads.

Near-Net Shape Precision

By forging closer to your final dimensions, we drastically reduce raw material waste and cut down your subsequent CNC machining time. You pay for the metal you use, not the chips you machine away.

ENGINEERED RING PROFILES

Optimized cross-sections to minimize your material input and machining time

Rectangular Rings

Flanged Rings

Conical Rings

Custom Contoured

FLEXIBLE SUPPLY CONDITIONS

From as-forged blanks to fully machined turnkey components

As-Forged Blanks→

Raw material optimization with minimum machining allowance.

Rough Machined →

Delivered ready for your final finish machining.

Fully Machined→

Turnkey solutions including high-precision CNC turning, milling, and drilling.

Heat Treatment

Normalizing, Quenching & Tempering (Q+T), Solution Annealing.

PROVEN ACROSS CRITICAL INDUSTRIES

Delivering uncompromising integrity where failure is not an option.

WIND ENERGY

Engineered Components:

Yaw & Pitch Bearings
Tower Flanges
Generator Housing Rings
Request Specs

HEAVY MACHINERY

Engineered Components:

Slewing Rings
Heavy Gear Blanks
Crusher Components
Request Specs

NUCLEAR & POWER

Engineered Components:

Pressure Vessel Flanges
Turbine Retaining Rings
Generator Core Rings
Request Specs

OFFSHORE & MARINE

Engineered Components:

Mooring System Components
Winch Drums
Thruster Flanges
Request Specs

Why Global OEMs Choose Manoir

Nuclear-Grade Rigor

Backed by Rongfa Nuclear Equipment. We apply strict nuclear-level quality control and 100% NDT to ensure zero-defect integrity.

16-Meter Scale

Equipped with a 5,000T rolling mill. We deliver seamless rings up to 16,000mm OD and massive castings up to 60 Tons.

End-to-End Integration

No outsourcing risks. From in-house AOD melting and forging to heat treatment and precision CNC machining, we control it all.

Global Certifications

Fully compliant with demanding global standards. Audited and certified by ISO, ASME, DNV, ABS, and Lloyd's Register.

Quality & Testing Assurance

ZERO COMPROMISE: 100% TRACEABILITY & NDT

Inheriting the stringent quality control protocols of nuclear equipment manufacturing, every Manoir component undergoes rigorous validation before shipping. We don’t just promise quality; we document it.

Independent Testing Center

SUBMIT YOUR DRAWINGS

Direct Engineering Review & Custom Quoting.

Upload your CAD files or PDF specifications. Our metallurgical and mechanical engineering team will conduct a comprehensive technical review and provide a turnkey solution.

Engineering RFQ Portal

Ask For A Quick Quote

We will contact you within 24 hours, please pay attention to the email with the suffix “@manoirworks.com”