What welding method does this tube mill adopt?

It uses high frequency induction welding for stable and smooth welding seams.

Will you send engineers for overseas installation?

We can arrange professional technicians to your factory for installation and training service.

F400 Automatic Large Square Pipe Machine

Name: F400 Automatic Large Square Pipe Machine
Brand: Hebei Tengtian Welded Pipe Equipment Manufacturing Co., Ltd.
SKU: 2310223705

Hebei, ChinaHebei Tengtian Welded Pipe Equipment Manufacturing Co., Ltd.

US$36,800.00-456,000.00

1 Set

Product profile

Customization

Available

After-sales Service

Online Guidance/Door-to-Door Service

Warranty

1 Year

Model NO.

F400

Pipe Material

Carbon Steel

Condition

New

Customized

Theory

High Frequency Induction Welding

Application

Industry, Construction, Petroleum, Bridge Structure, Greenho

Type

High Frequency Weld Pipe Mill Line

Voltage

220/380/415/420/440V

Production Speed

20-30m/Min

Welding Type

High Frequency Welding

Automation Grade

Automatic

Wall Thickness of Welded Tube

5-20mm

Tube Size Range Value

200×200mm to 400×400mm

Forming Technology Value

Direct Forming

Applicable Material Value

Q235, Q355 Carbon Steel

Driving Mode Value

DC Motor Driving

Control System Value

PLC Automatic Control

Product Shape Value

Square and Rectangular Tube

Core Warranty Parts Value

Welding Transformer, Forming Rollers

Application Field Value

Construction, Steel Structure, Bridge, Greenhouse

Roller Material Value

40cr Alloy Steel Roller

Cutting Mode Value

Flying Saw Cutting

Transport Package

Full Container Loading with Plastic Film Wrapping

Specification

Produce square tube 200×200mm to 400×400mm, wall t

Trademark

Tengtian

Origin

China

HS Code

8515219100

Key features

Adopt direct forming technology, skip round tube pre-forming, lower production cost & higher efficiency

Produce 200-400mm large square and rectangular carbon steel tubes with stable forming precision

Heavy duty frame and high power driving system, long service life for structural steel pipe manufacturing

Fully automatic ERW tube mill line, one-stop production from steel coil to finished pipe

Quick roller change design, flexible to switch different tube sizes

Support Q235 and Q355 carbon steel raw material processing

Low energy consumption, stable operation to save production labor cost

Complete after-sales service with one year warranty for core parts

Fully automatic integrated production line, simple operation and less labor demand

Quick roller replacement design, easy to switch different tube specifications

Company profile

High Repeat Buyers ChoiceYears of Export ExperienceSelf-brandedPatents Awarded

Hebei Tengtian Welded Pipe Equipment Manufacturing Co., Ltd.

Hebei, China

CertifiedBusiness Type: Manufacturer/Factory CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 11 Years CertifiedNearest Port: Tianjin PortAverage Response Time: ≤3.19h

AI-Powered supplier vetting

SummaryThe supplier operates in welded pipe equipment, cold bending equipment, metallurgical equipment, related electrical products, and welded or cold-formed products. It reports broad customization capability, machining and fabrication facilities, documented quality and service procedures, CE and ISO9001:2015 certifications, and overseas installation, debugging, maintenance, repair, and training services in Italy and South Korea. The supplier states that it provides OEM services for well-known brands and has an R&D center with more than 50 engineers, including work on AI-driven predictive maintenance. Export experience is stated as 11 years, with average lead times within 15 working days in both peak and off-season periods. Limitations include no effective manufacturing-capacity contract with related subcontractors, no in-stock capacity, no overseas warehouse or showroom, no available SDK, and no Fortune 500 customer collaboration reported.

Supplier typeThe supplier’s stated business scope covers production and sales of welding pipe equipment, cold bending equipment, metallurgical equipment, related electrical products, welded pipe, and cold-formed products, together with import and export activities. This identifies it as an industrial equipment manufacturer and exporter.

CertificationsThe supplier reports an ISO9001:2015 management-system certificate and CE product compliance certification. These are explicit certifications relevant to quality management and product conformity.

After-Sales capabilityThe supplier has documented procedures and records for service capability, corrective and preventive actions, complaint handling, and quality assurance. It offers installation, debugging, maintenance, repair, and training in Italy and South Korea, although it has no overseas warehouse or showroom.

R&D capabilityThe supplier reports an R&D center staffed by more than 50 engineers and development involving AI-driven predictive maintenance. It also reports no available SDK, so the evidence supports engineering innovation but not SDK-based integration capability.

Production capacityThe supplier lists CNC, milling, drilling, cutting, painting, and boring facilities, operates in several industrial equipment categories, and reports average lead times within 15 working days in both peak and off-season. However, it has no in-stock capacity and no effective manufacturing-capacity contract with related subcontractors, which limits the evidence for supply-chain robustness.

Customization capabilityThe supplier explicitly reports customization from samples, customization from designs, full customization, minor customization, and flexible customization. This directly supports a broad range of customization services.

Client casesThe supplier states that it provides OEM services for well-known brands and received recognition as a 2022 China Top 10 Pipe Machinery Brand and a Hebei Province Best Export Performance Enterprise. It reports no collaboration with Fortune 500 companies, so the evidence shows industry recognition and OEM experience but not top-tier multinational customer cases.