01ERW Tube Mill Lines
Complete high-frequency welded tube lines for round, square, rectangular and special-section tubes.
Ø20–Ø660 mmView equipment details →
FENGQI MACHINERYRequest a proposal
TUBE MILL & METAL PROCESSING EQUIPMENT
Manufacturer of ERW tube mills, API pipe lines, roll forming lines, and coil slitting & cut-to-length lines.
ONE PARTNER, COMPLETE LINE
Hebei Fengqi Machinery Equipment Co., Ltd., based in Shijiazhuang, China, integrates engineering, manufacturing, sales and service. Our team has more than 20 years of practical experience in tube mill and metal-processing equipment.
We configure each line around the required tube profile, size range, wall thickness, material grade, speed target, application and site conditions—turning production goals into a practical equipment plan.
NEW EQUIPMENT PORTFOLIO
Newly manufactured lines are presented here as a dedicated portfolio. Focused forming technologies appear as separate categories so technical buyers can evaluate them quickly.
01Complete high-frequency welded tube lines for round, square, rectangular and special-section tubes.
Ø20–Ø660 mmView equipment details →
02W-forming, FFX and direct-forming solutions for solar torque tubes and support profiles in carbon and high-strength steels.
Ø50–Ø610 mmView equipment details →
03Servo-adjusted common breakdown rolls reduce roll inventory, manual adjustment and changeover time.
Typical: Ø89–Ø168 mmView equipment details →
04Forming systems designed to manage strip springback, ovality, seam position and weld stability.
Project: Ø273 × 4.5 mmView equipment details →
05Reinforced forming and drive configurations for high forming loads, thick walls and demanding steel grades.
Projects: Ø76 × 5 / Ø114 × 10 mmView equipment details →
06Flat strip is progressively formed into square or rectangular open sections before HF welding and sizing.
20×20–500×500 mmView equipment details →
07Heavy-duty line configurations for high-strength oil and gas transmission pipe and casing applications.
ASTM / API Spec 5LView equipment details →
08Custom lines for C, Z, U and special profiles used in guardrails, solar rails, racking and automotive structures.
Built around the profileView equipment details →
09Coil processing lines engineered for accurate levelling, slitting, cut length and controlled material handling.
0.18–25 mm · up to 3,000 mmView equipment details →
10Precision forming and welding systems for aluminum tube, condenser tube and automotive radiator applications.
Design speed up to 80 m/minView equipment details →
11Decoilers, levellers, strip joiners, accumulators, HF welders, flying saws and automatic packing systems.
Matched to the main lineView equipment details →
12Forming rolls, saw blades, slitting knives, ferrite rods, scarfing tools, zinc spraying systems and consumables.
Ø8–Ø660 mm roll capabilityView equipment details →Specifications shown are reference ranges only. Final configuration depends on tube size, wall thickness, material grade, production speed, product application and required standards.
ENGINEERING FOCUS
For suitable production ranges, FFX flexible forming uses common breakdown rolls with servo-adjusted roll positions. This can reduce roll inventory and changeover time while helping maintain forming consistency, roundness and weld-seam position.

SELECTED PROJECTS
Representative deliveries demonstrate our experience with different pipe ranges, forming challenges and production environments.

A complete tube production solution configured for the customer’s local production conditions.
View project case →
Large-diameter forming experience applied to stable, repeatable production.
View project case →
A representative overseas delivery integrating forming, welding and downstream handling.
View project case →
A project demonstrating heavy-duty engineering and line integration capability.
View project case →
IN-HOUSE CAPABILITY
Our CNC machining base allows many critical equipment parts to be produced in-house, supporting closer control over machining accuracy, quality, cost and delivery schedules.
MANUFACTURING FACILITIES
Selected workshop images show the manufacturing resources used for structural parts, shafts, roll tooling and large precision components.

Production space for equipment fabrication, assembly and inspection.

Heavy machining capacity supports frames and precision structural components.

Machined rolls and bearing structures prepared for tube-mill assembly.

Finished shafts prepared for line assembly and quality inspection.
FROM CONCEPT TO OUTPUT
Technical consultation, matched line configuration, workshop-layout advice and operating-cost review.
Contract-based manufacturing, production quality control and foundation drawings before shipment.
Installation and commissioning support, operator training, consumables, spare parts and remote guidance.
QUALITY CONTROL
Critical components are checked through machining, assembly and trial-operation stages. Before delivery, the line is inspected against the agreed contract scope, while foundation drawings and installation preparation are coordinated with the customer.
START YOUR PROJECT
Share the pipe profile, size range, wall thickness, steel grade, target speed and destination. We will use these details to prepare a matched technical proposal.