When planning to invest in a new welded pipe production line, sending an inquiry to pipe-making equipment suppliers is usually the first step. But have you ever encountered this situation: receiving several pipe-making machine quotes, only to find that some prices differ significantly, and some welding pipe equipment is simply not suitable for your product specifications?
In fact, sometimes the problem is not that the welding pipe equipment supplier’s quote is inaccurate, but that the information provided is not precise enough.
A high-quality pipe-making machine inquiry can not only help you obtain a more accurate quote, but also save communication time.
As a manufacturer with 26 years of experience in pipe-making machine manufacturing, we have compiled 5 key parameters that must be provided when inquiring about welded pipe equipment.
1. Raw Material Details: Steel Strip Width and Material
This is the foundation of welded pipe production. Please specify the width range and material grade of the steel strip (coil) you plan to use (e.g., Q235, Q355, stainless steel 304 or 316, or even higher strength pipeline steel X42/X60, etc.).
◆Different materials place entirely different demands on the stress design and welding power requirements of welded pipe forming machines.
2. Finished Pipe Specifications: Outer Diameter Range and Wall Thickness
Please provide the minimum and maximum pipe diameters you wish to produce, along with the corresponding wall thickness range. For example: φ32mm – φ165mm, wall thickness 2.5mm – 6.0mm.
◆This directly determines the roll pass design range, the rigidity of the main frame of the pipe forming machine, and the power of the main motor.
If you have only provided commonly used specifications but plan to expand to larger diameters in the future, it is recommended to specify this in advance so that upgrade space can be reserved for the welded pipe production equipment.
3. Production Speed and Capacity Targets: Do you require high-speed, high-volume production, or flexible production with multiple varieties and small batches?
Please inform us of your expected annual output (e.g., 50,000 tons/year) or desired production line speed (e.g., 30-50 meters/minute).
◆Capacity targets determine the level of automation configuration of the welded pipe production line. Will you use a standard flying saw or a high-speed saw? Is automatic packaging and palletizing required? These factors will significantly impact the quote.
4. Welding Method and Weld Treatment: Please specify your weld requirements.
Is an online or offline deburring (scraping) device required? For certain high-precision applications (such as automotive pipes and boiler tubes), is weld heat treatment (normalizing) required?
◆This relates to the configuration of the post-high-frequency welding process, directly affecting the internal stress relief and subsequent processing performance of the finished pipe.
5. Quality Inspection Standards
Please inform us of the product standards you need to follow (e.g., GB/T 3091, API 5L, EN 10219, etc.). Also, clarify whether online non-destructive testing, such as ultrasonic testing (UT) or eddy current testing (ET), is required.
◆Flaw detection equipment represents a significant investment. For pipes used in building structures, manual sampling may be sufficient; however, for oil, gas, or pressure pipelines, a fully closed-loop online flaw detection system is essential.
A welded pipe production line inquiry form including the above five parameters is essential to guide pipe manufacturing machine suppliers in designing the most suitable and cost-effective welded pipe production equipment solution for you in the shortest possible time.
If you are planning to build or upgrade a welded pipe plant, please contact ZTZG directly to obtain the “Welded Pipe Production Equipment Requirements Information Form.” Our engineers will provide you with one-on-one welded pipe production line planning advice based on your specific parameters.
https://www.ztzgsteeltech.com/
E-mail：sales@ztzg.com Whatsapp：+8615931058620
Post time: Mar-11-2026
