{"id":4435,"date":"2026-07-01T13:10:16","date_gmt":"2026-07-01T05:10:16","guid":{"rendered":"https:\/\/gh-petro.com\/?post_type=product&p=4435"},"modified":"2026-07-01T13:10:16","modified_gmt":"2026-07-01T05:10:16","slug":"%cf%86219-406mm-high-duty-round-to-square-ffx-direct-formingforming-sizing-mill-assembly-for-octg-production","status":"publish","type":"product","link":"https:\/\/gh-petro.com\/fr\/product\/%cf%86219-406mm-high-duty-round-to-square-ffx-direct-formingforming-sizing-mill-assembly-for-octg-production\/","title":{"rendered":"\u03a6219-406mm High Duty Round-to-square FFX Direct Forming,Forming Sizing Mill Assembly for OCTG Production"},"content":{"rendered":"

Pr\u00e9sentation g\u00e9n\u00e9rale<\/h3>\n

\"\" \"\" \"\"<\/p>\n

Our Round-to-square FFX Direct Forming<\/a> acts as the core processing section of high-frequency electric resistance welded pipe mills. It is engineered to gradually bend and deform incoming steel strip into closed tubular profiles via sequential roll forming. After the strip is formed into an open tube profile, an HF induction welder joins its longitudinal edges to form a uniform, reliable weld seam. The freshly welded hot pipe is then transferred to the cooling section for controlled cooling to stabilize its metallurgical structure. Next, sizing stands accurately calibrate pipe outer diameter to meet customized dimensional tolerance requirements. Installed downstream of the sizing mill, multiple Turks Head units perform secondary dimension correction and pre-straightening, greatly improving the roundness, straightness and overall geometric precision of finished OCTG pipes.<\/p>\n

Conventional Forming(W Forming)<\/strong><\/h4>\n
This design features enhanced maintainability and operational convenience, while effectively improving on-site safety.<\/div>\n
<\/div>\n
High-precision forming stands adopt mechanical shaft expansion for roll shaft connection, ensuring outstanding dimensional accuracy of pipe diameters.<\/div>\n
<\/div>\n
It delivers superior performance and maximizes production throughput. This solution not only boosts production speed, but also reduces equipment wear and tear to extend the service life of the machinery.<\/div>\n

Flexible Forming(FF\/FFX)<\/strong><\/h4>\n
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It not only cuts down roll replacement time significantly, but also reduces roller costs by 40\u201360%.<\/div>\n
<\/div>\n
Rollers are compatible for producing round and square tubes within a certain size range on the same production line, eliminating frequent replacements for different specifications.<\/div>\n
<\/div>\n
By automating multiple procedures in the tube forming process, FF\/FFX technology minimizes manual work, effectively lowering labor costs and reducing human error.<\/div>\n<\/div>\n

Direct Forming(DFT)<\/strong><\/h4>\n
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It delivers excellent flexibility. Tube dimensions within the mill\u2019s size range can be adjusted without roll replacement.<\/div>\n
<\/div>\n
Full automation of line operation and roll adjustment cuts labor requirements, boosts productivity, and lowers inventory and associated costs.<\/div>\n
<\/div>\n
Equipped with a built-in recipe database and mobile touch screen, the system enables one-click automatic adjustment of roll angles and positions during product changeovers.<\/div>\n<\/div>\n

Quick Change System<\/strong><\/h4>\n
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During product changeover, the entire shaft assembly can be lifted from the horizontal stand. Replacement takes only minutes rather than hours.<\/div>\n
<\/div>\n
The universal shaft is automatically engaged and disengaged by hydraulic cylinders. This allows rolls to be prepared, replaced and adjusted offline without halting production.<\/div>\n
<\/div>\n
While offline roll preparation is underway, a pre-assembled spare shaft assembly can be mounted onto the horizontal stand to finish the changeover. This quick-change system drastically cuts machine downtime.<\/div>\n<\/div>\n

Specifications<\/h3>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Model\u2572Spec.<\/td>\nSize(mm)<\/td>\nThickness(mm)<\/td>\nForming Method<\/td>\nRoll Quick Change<\/td>\n<\/tr>\n
ZJ-GH32<\/td>\n\u03a610-32<\/td>\n1.1-2.25<\/td>\nW<\/td>\nRoller changing trolley<\/td>\n<\/tr>\n
ZJ-GH50<\/td>\n\u03a612-50<\/td>\n1.2-2.75<\/td>\nW<\/td>\nRoller changing trolley<\/td>\n<\/tr>\n
ZJ-GH76<\/td>\n\u03a632-76<\/td>\n1.5-3.5<\/td>\nW<\/td>\nRafted System<\/td>\n<\/tr>\n
ZJ-GH89<\/td>\n\u03a632-89<\/td>\n1.5-3.75<\/td>\nW<\/td>\nRafted System<\/td>\n<\/tr>\n
ZJ-GH114<\/td>\n\u03a640-114<\/td>\n1.5-4.0<\/td>\nW<\/td>\nRafted System<\/td>\n<\/tr>\n
ZJ-GH140<\/td>\n\u03a648-140<\/td>\n1.5-5.0<\/td>\nW<\/td>\nRafted System<\/td>\n<\/tr>\n
ZJ-GH165<\/td>\n\u03a676-165<\/td>\n1.8-6.0<\/td>\nW\/DFT<\/td>\nRafted System<\/td>\n<\/tr>\n
ZJ-GH219<\/td>\n\u03a689-219<\/td>\n2.0-8.0<\/td>\nFF\/DFT<\/td>\nShaft Assembly<\/td>\n<\/tr>\n
ZJ-GH273<\/td>\n\u03a6114-273<\/td>\n3.0-10.0<\/td>\nFF\/DFT<\/td>\nShaft Assembly<\/td>\n<\/tr>\n
ZJ-GH325<\/td>\n\u03a6165-325<\/td>\n5.0-14.0<\/td>\nFF\/DFT<\/td>\nShaft Assembly<\/td>\n<\/tr>\n
ZJ-GH355<\/td>\n\u03a6165-355<\/td>\n5.0-15.0<\/td>\nFFX\/DFT<\/td>\nShaft Assembly<\/td>\n<\/tr>\n
ZJ-GH406<\/td>\n\u03a6219-406<\/td>\n6.0-16.0<\/td>\nFFX\/DFT<\/td>\nShaft Assembly<\/td>\n<\/tr>\n
ZJ-GH457<\/td>\n\u03a6219-457<\/td>\n6.0-18.0<\/td>\nFFX\/DFT<\/td>\nShaft Assembly<\/td>\n<\/tr>\n
ZJ-GH508<\/td>\n\u03a6273-508<\/td>\n6.0-20.0<\/td>\nFFX\/DFT<\/td>\nShaft Assembly<\/td>\n<\/tr>\n
ZJ-GH610<\/td>\n\u03a6273-610<\/td>\n6.0-21.0<\/td>\nFFX\/DFT<\/td>\nShaft Assembly<\/td>\n<\/tr>\n
ZJ-GH660<\/td>\n\u03a6325-630<\/td>\n6.0-22.0<\/td>\nFFX\/DFT<\/td>\nShaft Assembly<\/td>\n<\/tr>\n
ZJ-GH711<\/td>\n\u03a6325-760<\/td>\n8.0-22.0<\/td>\nFFX\/DFT<\/td>\nShaft Assembly<\/td>\n<\/tr>\n<\/tbody>\n<\/table>","protected":false},"featured_media":4285,"template":"","meta":{"_acf_changed":false},"product-category":[65,20],"class_list":["post-4435","product","type-product","status-publish","has-post-thumbnail","hentry","product-category-forming-sizing-group","product-category-octg-production-line"],"acf":[],"_links":{"self":[{"href":"https:\/\/gh-petro.com\/fr\/wp-json\/wp\/v2\/product\/4435","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gh-petro.com\/fr\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/gh-petro.com\/fr\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/gh-petro.com\/fr\/wp-json\/wp\/v2\/media\/4285"}],"wp:attachment":[{"href":"https:\/\/gh-petro.com\/fr\/wp-json\/wp\/v2\/media?parent=4435"}],"wp:term":[{"taxonomy":"product-category","embeddable":true,"href":"https:\/\/gh-petro.com\/fr\/wp-json\/wp\/v2\/product-category?post=4435"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}