Tier-1 Supplier
⚙️ ISO 9001 & ASTM Certified

Industrial-Grade Seamless Rolled Ring Forging Factory

Direct manufacturer delivering high-integrity seamless forged rings for wind power, gearboxes, pressure vessels, and heavy bearings. Precision engineered to global standards with full material traceability.

OD Up to 16,000 mm
Max Weight: 300 Tons
100% UT/PT Inspection
Direct Factory Price

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Production Capabilities & Limits

Parameter Range Capability Tolerance Standard
Outer Diameter (OD) 300 mm — 16,000 mm Strictly per drawing (Up to ±0.5mm)
Face Height 50 mm — 4,880 mm Precision CNC turned
Maximum Weight Up to 300,000 kg (300 Tons) Full volume control
Supply State Rough Turned, Fully Finish Machined, Normalized, Quenched & Tempered
CNC Machining Rolled Ring

Full Material Traceability

We stock and source mill-certified raw materials to meet major international standards

Carbon Steel

ASTM A105, C45, AISI 1020, AISI 1045, S355J2G3, LF2

Alloy Steel

AISI 4140, 4340, 8620, 42CrMo4, 34CrNiMo6, 18CrNiMo7-6

Stainless Steel

F304/304L, F316/316L, 17-4 PH, Duplex 2205, Super Duplex

Special / Tool Steel

H13, Cr12MoV, Inconel 625/718, Monel, Custom Melting

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100% Confidentiality & Proprietary Design Protection

We respect your engineering efforts. We strictly commit to signing a formal Non-Disclosure Agreement (NDA) prior to reviewing any proprietary CAD or PDF blueprints. Production is backed by Mill Test Certificates (EN 10204 3.1).

Heavy-Duty Forging Infrastructure

Heavy Ring Rolling Mill Workshop

Advanced Ring Rolling Shop Floor

Equipped with 5,000T hydraulic press, CNC automatic ring rolling mills, and multi-stage programmable heat treatment furnaces to guarantee structural homogeneity.

Frequently Asked Questions

Q1: Do you accept low-volume or prototyping orders?

A: Yes. For standard carbon and alloy steels, our Minimum Order Quantity (MOQ) can be as low as 1 piece if we have corresponding forged ingot bar stock in house.

Q2: What non-destructive testing (NDT) is included?

A: As a standard practice, 100% Ultrasonic Testing (UT) and Magnetic Particle Testing (PT) are performed post-rough-machining to ensure zero subsurface defects, following international standards like ASTM or EN.

Q3: What is the typical lead time for a custom forged ring?

A: Standard rough-turned rings require 3 to 4 weeks. For fully finished CNC machined components with specific Quenched & Tempered (Q+T) heat treatments, it typically ranges between 5 and 6 weeks.