Large Seamless Rolled Rings for Tunnel Boring Machines

Name: "Large Seamless Rolled Rings for Tunnel Boring Machines"
Rating: 5 (734 reviews)

جرد:

SKU: 6093744930

الطراز: forgings

Iraeta

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Large Seamless Rolled Rings for Tunnel Boring Machines

Iraeta manufactures large seamless rolled rings specifically for tunnel boring machines (TBMs). With up to 21m outer diameter, 5m height, and 300 tons weight, these rings serve as critical components for cutterhead support, main bearing housings, and slewing rings in shield machines.

Key Selling Points

Gigantic Size Capacity: World-record 21.029m diameter ring – ideal for 16m+ diameter TBMs.
High Load & Fatigue Strength: Engineered for heavy intermittent loads, frequent start-stop, and vibration.
Integrated Rolling Process: Seamless construction ensures superior grain flow and mechanical integrity.
Customizable Cross-Section: Profiling capability allows near-net shape to reduce machining.

Technical Specifications

Material	Carbon Steel, Alloy Steel, or custom
Max Outer Diameter	21 m
Max Height	5 m
Max Weight	300 tons
Certifications	ISO 9001, PED, EN1090
Applications	Shield machine cutterhead, main bearing rings, slewing rings

Models and Options

Available as plain rings or profiled rings with near-net shape. Options include heat treatment, machining, and magnetic particle inspection.

Materials and Structure

Manufactured from high-strength low-alloy steels. The seamless rolling process aligns grain structure with ring circumference, enhancing load capacity.

Applications

Tunnel boring machine cutterhead support rings
Main bearing housing rings
Slewing ring segments

Customization

We engineer rings to match specific TBM designs, including special profiles and integrated gear teeth (drive rings). Contact our team.

FAQ

What is the largest ring you have produced for a TBM? We have supplied rings for 16m diameter shield machines.
Can you produce a ring with an internal gear profile? Yes, we offer drive rings with integrated gearing.
What is the typical lead time for a TBM ring? 12-18 weeks depending on size and complexity. MOQ 1 unit.
Do you provide on-site technical support? We offer remote support and can arrange site visits if needed.
What quality tests do you perform? Ultrasonic, magnetic particle, dimensional, and mechanical testing.

Inquiry Information

Contact Simon Wang: ebiz@iraeta.com | Tel: +86 188-5315-7508 | WhatsApp: +86 18853157508

Image Suggestions

Filename: large-ring-tbm-1.jpg - Alt: Large seamless rolled ring for tunnel boring machine cutterhead
Filename: large-diameter-ring-tbm.jpg - Alt: Huge rolled ring for TBM main bearing