The OCTG length measuring, weighing and marking production line is an integrated core dedicated equipment in the manufacturing process of oil country tubular goods (including oil pipes, casing pipes, drill pipes, etc.). Its core function is to complete three key processes—precision length measurement, accurate weighing and standardized marking—on OCTG products in one stop. It provides comprehensive and reliable data support for product traceability, quality control, logistics management and on-site safe application, realizing the seamless connection of post-processing links in OCTG production.

Core Composition

The production line is mainly composed of a feeding and conveying system, a length measuring unit, a weighing unit, a marking unit, an inspection and sorting system, and an unloading and collecting system.

1. Feeding and conveying system: Realizes stable transportation and precise positioning of OCTG pipes, ensuring the accuracy of subsequent length measurement, weighing and marking.

2. Length measuring unit: Adopts high-precision laser length measuring sensor, which can quickly and accurately measure the length of pipes without contact, avoiding damage to the pipe surface.

3. Weighing unit: Equipped with a high-precision dynamic weighing platform, which can complete the weighing of pipes during the conveying process, with strong anti-interference ability and stable data.

4. Marking unit: Includes two mainstream types—dot peen and laser, which can print integrated information such as product specifications, length, weight, batch number, API certification on demand.

5. Inspection and sorting system: Automatically verifies the qualification of length data, weight data and marks, and sorts out unqualified products to ensure zero defects of delivered products.

6. Unloading and collecting system: Conveys qualified products to the subsequent anti-corrosion, packaging or storage links, ensuring the continuity and efficiency of the entire production process.

Core Advantages

1. Integrated efficient operation: Integrates three processes of length measurement, weighing and marking, reducing the number of equipment and production links, shortening the production cycle and improving overall efficiency.

2. High precision and good consistency: The high-precision sensors and precise positioning system ensure that length measurement, weighing data and marks are accurate and consistent, fully complying with API industry standards.

3. Full-process automation: Realizes automatic feeding, positioning, length measurement, weighing, marking, inspection and unloading, reducing manual intervention, lowering labor costs and avoiding human errors.

4. Strong adaptability: Can flexibly adapt to OCTG pipes of different specifications (diameter and length), support the switching of two marking modes, and meet the personalized needs of different customers.

5. Durable and reliable: The weighing platform and length measuring sensor have strong wear resistance and stability; the marks are wear-resistant and corrosion-resistant, remaining legible during the entire service life of the product.

Product Specifications

Application Value

For manufacturers: The integrated production line realizes full-process traceability of product information (specifications, length, weight, batch, etc.), which is convenient for quality analysis and management optimization; it reduces equipment investment and production site occupation, and improves production efficiency and cost control capabilities. For oilfield operators: Clear and comprehensive product marks and accurate data help quickly identify product qualifications, verify authenticity, and ensure that the selected OCTG products fully match the drilling and production operation requirements, effectively avoiding safety risks caused by data errors or specification mismatches. For logistics links: Accurate weight and length data provide reliable basis for transportation scheduling and cost accounting, improving logistics operation efficiency.