CSC Production Square Kelly and Hexagonal Kelly

# CSC Production Square and Hexagonal Kellys The Kelly is an essential component located at the top of the drill string, available in both square and hexagonal configurations. During rotary drilling operations, the kelly connects with the square bushing and rotary table, transferring the rotational torque from the surface to the drill pipe, which ultimately drives the drill bit. It also supports the weight of the drill string during this process. In directional drilling or drilling using downhole motors, the kelly plays a crucial role in supporting the weight of the drill string and counteracting the torque generated.  ## Introduction Continental Steel Co., Ltd. (CSC) specializes in manufacturing high-quality square and hexagonal kellys that strictly adhere to API Spec 7-1 standards. These kellys are crafted from AISI 4145H modified steel, which undergoes thorough heat treatment. This ensures a Brinell hardness range of 285-341 and a minimum Charpy impact value of 40 ft-lbs. Each kelly bar is ultrasonically inspected throughout its entire length and cross-section for quality assurance. ## Technical Specifications Below is a detailed parameter table showcasing the specifications of our kelly products: | Size (in) | Top Connection (LH) | Bottom Connection | I.D. (in) | Drive Section (in) | |-----------|-------------------------------|-------------------------------|-------------|----------------------------| | | Standard O.D. (in) | Optional O.D. (in) | Square O.D. (in) | Hex. O.D. (in) | Square | Hex. | A | B | | 2-1/2 | 6-5/8REG 7-3/4 | 4-1/2REG 5-3/4 | NC26 | / | 1-1/4 | / | 3-2/7 | / | | 3 | 6-5/8 REG 7-3/4 | 4-1/2REG 5-3/4 | NC31 4-1/8 | NC26 3-3/8 | 1-3/4 | 1-1/4| 4 | 3-3/8 | | 3-1/2 | 6-5/8 REG 7-3/4 | 4-1/2REG 5-3/4 | NC38 4-3/4 | NC31 4-1/8 | 2-1/4 | 1-3/4| 4-1/2 | 4 | | 4-1/4 | 6-5/8REG 7-3/4 | 4-1/2REG 5-3/4 | NC46 6-1/4 | NC38 4-3/4 | 2-4/5 | 2-1/4| 5-4/7 | 4-4/5 | | 5-1/4 | 6-5/8 REG 7-3/4 | / | 5-1/2FH 7 | NC46 6-1/4 | 3-1/4 | 3 | 7 | 6 | Our kellys are designed to meet the rigorous demands of modern drilling operations. Whether you're working in conventional rotary drilling or more advanced directional drilling setups, our products ensure optimal performance and reliability. At CSC, we pride ourselves on delivering exceptional quality and service. Our team of experts is always ready to assist with any inquiries or custom requirements you may have. Contact us today to learn more about how our kellys can enhance your drilling operations. --- This document has been prepared with meticulous attention to detail, ensuring that all technical specifications and operational aspects are clearly outlined. If you have any specific questions or need further clarification, please don't hesitate to reach out. We look forward to assisting you with your drilling needs.

Ball Grinder Mill Classifier

The ultra-fine ball milling classification production line is an international standard non-mining processing production line, which combines the ultra-fine ball milling technology with the self-split micro powder classification technology perfectly. The ball mill can be connected with multiple grading machines in parallel grading, also can be connected with multiple series grading, at the same time to produce multiple particle size products.

● The ball mill classification production line has made revolutionary progress and breakthrough in energy saving technology and classification accuracy, saving more than 50% compared with other ball mill classification production lines and other types of mills. High classification precision, accurate cutting point, large processing capacity;

● Grading fineness 200~6000 mesh arbitrary adjustment, up to the current domestic and foreign dry grading high level; The new self-split high concentrated phase classification technology is used in the classification production line of ultrafine ball mill.

● Ultra-fine ball mill for innovative design, crushing efficiency greatly improved, grinding medium ratio science, can effectively produce a large number of fine powder;

● The hard minerals can be designed without iron pollution. The lining plate and grinding body are made of alumina ceramic, quartz, SILEX or special materials. The grinding medium is rationally proported according to the product requirements, and the filling rate is high to ensure the purity and whiteness of the product.

● When grinding ultra-fine powder, add grinding additives, improve grinding efficiency, optimize the matching of drive and grinding energy consumption, greatly save energy consumption and classifier to form a closed system, negative pressure transportation, dust-free;

● Low equipment failure rate, stable operation; The system adopts intelligent frequency conversion control, high degree of automation; Negative pressure flow field design, excellent production environment; Large production capacity, annual output 0.5~ 500,000 tons

china ball grinder mill classifier,ultra-fine ball milling classification production line from china manufacturer and supplier

Shandong Jing Xin Powder Equipment Technology Co., Ltd. , https://www.jxpowder.com