3 NB IBR Standard, EN standard, ISO standard steel tube forming machine line

 

Tube forming machine specification

 

1. pipe O.D(round):31.8 mm-88.9 mm

2. Wall thickness:1.2mm-3.75mm

3. length:4-12m

4. Speed:100 m/min

 

Basic necessaries for the Buyer:

Steel strips	material	Low-carbon steel, low alloy steel:,σs≤345mpa,σb≤610mpa
	I.D	Φ450~Φ508mm
	O.D	Φ600~1000mm
	Width	100~280mm
	Thickness	1.2-3.75mm
	Maximum.weight	≤4500KGS

 

Accordingly to the market demands. We are given the standard models as blew, and this is for your reference

only, the production range and main technical can be adjustable suppose your company have special requirement.

 

Tube forming machine Specification
Mill Model	OD range (mm)	Thickness range(mm)	Line Speed(m/min)
ZY-16	7.6-16	0.3-1.0	120
ZY-20	10-25.4	0.3-1.5	120
ZY-32	12.7-38.1	0.6-1.8	120
ZY-45	16-50.8	0.7-2.0	110
ZY-50	20-63.5	0.8-3.0	90
ZY-60	25.4-76.2	1.0-3.2	80
ZY-76	31.8-88.9	1.2-3.75	80
ZY-89	33.4-101.6	1.2-4.5	75
ZY-125	50.8-130	2.0-5.0	60
ZY-165	76.2-168	2.0-6.0	50
ZY-219	88.9-219	2.0-8.0	50
ZY-273	89-273	3.0-12.0	40
ZY-325	89-325	3.0-12.7	40
ZY-406	114-406	4.0-16.0	40
ZY-508	219-508	4.0-19.1	40
ZY-610	273-610	4.0-19.1	40
ZY-660	273-660	4.0-22	40

 

Product Overview

The ISO Standard Steel Pipe Mill is a large-size tube manufacturing solution designed for producing high-quality welded steel pipes used in infrastructure projects, structural engineering, water transmission systems, oil and gas facilities, and industrial pipeline networks.

As global construction and energy projects continue to expand, demand for large-diameter steel pipes has increased significantly. Manufacturers are required to produce pipes that not only meet dimensional accuracy requirements but also comply with international quality standards such as ISO, ASTM, EN, API, and BS specifications.

Compared with conventional tube mills, large-size tube production introduces greater challenges in forming stability, welding consistency, dimensional control, and quality inspection.

Our large-size tube mill machine combines advanced roll forming technology, high-frequency welding systems, automatic sizing equipment, and online inspection solutions to deliver reliable production performance for demanding industrial applications.

Conclusion: For manufacturers producing large-diameter steel pipes, production stability and compliance with international standards are the key factors determining long-term profitability and project qualification success.

Cause

Why Is Large Diameter Pipe Production More Challenging?

Producing large-size steel pipes involves significantly greater technical complexity than manufacturing small or medium-sized tubing.

Higher Forming Forces

As pipe diameter and wall thickness increase, forming loads rise dramatically.

This can cause:

• Edge waviness
• Poor roundness
• Dimensional variation
• Increased roll wear

Without proper roll pass design, product consistency becomes difficult to maintain.

Welding Quality Risks

Large diameter pipes often serve critical applications such as:

• Water transmission
• Structural engineering
• Industrial processing
• Energy infrastructure

Any weld defect may result in:

• Leakage
• Structural failure
• Project rejection
• Costly repairs

International Standard Compliance

Modern projects frequently require compliance with:

• ISO standards
• ASTM standards
• EN standards
• API specifications

Manufacturers must maintain strict dimensional and mechanical property control throughout production.

Increased Material Costs

Large-size pipe production uses more steel per unit length.

Even small scrap rates can create significant financial losses.

Conclusion: Large diameter tube manufacturing requires a specialized production system capable of controlling forming, welding, sizing, and inspection simultaneously.

Solution

Complete Large Size Tube Manufacturing Solution

Our ISO-compliant tube mill is engineered specifically for large-diameter steel pipe production.

Advanced Roll Forming Technology

Precision roll pass design ensures gradual and controlled material deformation.

Benefits include:

• Better roundness
• Reduced internal stress
• Improved dimensional consistency
• Lower scrap rates

High Frequency Welding System

The integrated HF welding system provides:

• Stable heat concentration
• Deep weld penetration
• High seam strength
• Consistent welding quality

This is particularly important for large diameter structural and transmission pipes.

Precision Sizing and Straightening

The sizing section controls:

• Outside diameter
• Ovality
• Straightness
• Final dimensional tolerance

Accurate sizing improves installation performance at project sites.

Online Quality Inspection

Optional inspection systems include:

• Ultrasonic Testing (UT)
• Eddy Current Testing (ECT)
• Hydrostatic Testing
• Weld Seam Monitoring
• Diameter Measurement Systems

These systems help ensure compliance with international project requirements.

Intelligent Automation System

PLC-based controls enable:

• Production monitoring
• Recipe management
• Automatic diagnostics
• Real-time data recording

This improves production efficiency and reduces operator dependency.

Specifications

Parameter	Specification
Pipe Diameter Range	Φ114 mm – Φ325 mm
Wall Thickness Range	3.0 mm – 12.7 mm
Material Type	Carbon Steel / Low Alloy Steel
Steel Grade	ASTM, API, EN, ISO Grades
Welding Method	High Frequency ERW
Production Speed	Up to 60 m/min
Pipe Shape	Round Pipe
Control System	PLC + HMI
Flying Saw	Automatic Flying Saw
Inspection Options	UT / ECT / Hydro Test
Power Supply	380V / 50Hz / 3 Phase
Annual Capacity	Up to 150,000 Tons

Machine configuration can be customized according to customer requirements and target standards.

Application

Water Transmission Pipelines

Large-diameter steel pipes are widely used for municipal and industrial water transportation systems.

Structural Engineering

Manufactures structural pipes used in:

• High-rise buildings
• Stadiums
• Bridges
• Industrial facilities

Oil and Gas Infrastructure

Suitable for producing transmission pipes used in upstream and midstream energy projects.

Industrial Processing Plants

Used in chemical plants, power stations, and manufacturing facilities requiring durable pipeline systems.

Renewable Energy Projects

Large steel pipes are increasingly used in:

• Wind power infrastructure
• Solar energy projects
• Hydrogen transportation systems

Public Infrastructure Development

Supports transportation, utility, and municipal construction projects worldwide.

How It Works

Large Diameter Steel Pipe Manufacturing Process

Step 1: Coil Loading

Steel coils are loaded onto the uncoiler.

Step 2: End Shearing and Welding

Coil ends are joined to enable continuous production.

Step 3: Accumulator Storage

The accumulator maintains uninterrupted strip feeding.

Step 4: Roll Forming

The strip passes through multiple forming stands and gradually becomes a tubular shape.

Step 5: High Frequency Welding

HF welding joins the strip edges under controlled temperature and pressure conditions.

Step 6: Weld Bead Removal

Internal and external weld beads are removed when required.

Step 7: Sizing and Straightening

The pipe enters the sizing section for dimensional calibration.

Step 8: Inspection

Online testing systems verify weld quality and dimensional accuracy.

Step 9: Flying Saw Cutting

The pipe is cut to specified lengths.

Step 10: Packaging and Shipment

Finished pipes are prepared for project delivery or downstream processing.

How To Choose

How To Select the Right Large Size Tube Mill Machine

Define Required Pipe Diameter Range

Select a machine based on your primary product dimensions and future expansion plans.

Consider Applicable Standards

Projects requiring ISO, API, ASTM, or EN compliance may require additional testing equipment.

Evaluate Annual Production Capacity

Determine expected annual output before selecting production speed and mill size.

Review Material Specifications

Higher-strength steel grades require stronger forming and welding systems.

Assess Inspection Requirements

Many infrastructure projects require:

• Hydrostatic testing
• Ultrasonic inspection
• Eddy current testing

Selecting integrated inspection systems can improve competitiveness.

Recommendation: Choose a tube mill based on long-term project requirements rather than only current production volume.

Why Choose Zhongyue Metallurgy Equipment

Specialized Tube Mill Manufacturing Experience

Zhangjiagang Zhongyue Metallurgy Equipment Technology Co., Ltd. provides:

• ERW Pipe Mills
• Large Diameter Tube Mills
• API Pipe Production Lines
• Direct Forming to Square Mills

Engineering Expertise

Our services include:

• Roll pass design
• Production line planning
• Installation supervision
• Commissioning support
• Technical training

Global Project Experience

Our equipment has been successfully supplied to customers in:

• India
• Russia
• Middle East
• Africa
• Southeast Asia
• South America

Reliable Quality Assurance

Each production line undergoes testing and inspection before shipment to ensure stable field performance.

FAQ

1. What pipe sizes can this machine produce?

The machine can typically produce round steel pipes from Φ114 mm to Φ325 mm depending on final configuration.

2. Can the production line comply with ISO standards?

Yes. The equipment is designed to support production according to ISO requirements and can be configured for ASTM, EN, API, and other international standards.

3. What industries use large-diameter steel pipes?

Common applications include water transmission, structural engineering, oil and gas infrastructure, industrial processing, and renewable energy projects.

4. What inspection systems are available?

Optional systems include Ultrasonic Testing (UT), Eddy Current Testing (ECT), Hydrostatic Testing, weld seam monitoring, and dimensional measurement systems.

5. Can the machine be customized?

Yes. Diameter range, wall thickness capability, production speed, automation level, and inspection equipment can all be customized according to project requirements.

Conclusion

Large-diameter steel pipe production requires more than simply scaling up a standard tube mill. Manufacturers must maintain precise forming control, stable welding quality, strict dimensional accuracy, and compliance with international standards. An ISO Standard Large Size Tube Mill Machine provides a complete production solution capable of meeting the demands of modern infrastructure, energy, and industrial projects while maximizing productivity and product reliability.