The B1511-771-0A0 Buttonhole Presser Foot<\/strong> is a high-quality replacement work clamp presser foot<\/strong> designed for industrial straight buttonhole sewing machines. With a small clamping range of up to 30mm<\/strong>, it securely holds fabric during the buttonhole cutting and stitching process, helping produce clean, uniform buttonholes with excellent repeatability.<\/p>\n Designed for Juki LBH series<\/strong> and compatible Jack JK-781 series<\/strong> buttonhole machines, this work clamp assembly delivers stable fabric control during high-speed operation. It is ideal for garment factories, tailoring units, uniform manufacturers, and sewing workshops that require consistent buttonhole quality.<\/p>\n Please verify the shape, part number, and measurements of your existing work clamp before purchasing.<\/strong><\/p>\n<\/blockquote>\n This replacement work clamp acts as the upper holding mechanism that presses the fabric firmly against the lower clamp while the machine cuts and stitches the buttonhole in one continuous operation.<\/p>\n Its compact design makes it suitable for producing buttonholes commonly found on:<\/p>\n By preventing fabric movement, it helps maintain accurate buttonhole size and neat stitch formation throughout the sewing cycle.<\/p>\n This work clamp presser foot is specifically designed for industrial high-speed mechanical and computerized straight buttonhole sewing machines.<\/p>\n Always compare your existing work clamp with the product image and part number before ordering.<\/p>\n The B1511-771-0A0 work clamp is optimized for light to medium-weight woven fabrics used in garment manufacturing.<\/p>\n Recommended fabrics include:<\/p>\n The clamp applies even pressure to help prevent distortion while maintaining accurate fabric positioning during the complete buttonhole cycle.<\/p>\n Industrial buttonhole machines operate at very high speeds, making accurate fabric holding essential for producing consistent buttonholes.<\/p>\n The B1511-771-0A0 offers:<\/p>\n Its hardened steel construction withstands continuous factory use while maintaining dependable clamping force.<\/p>\n Ideal for manufacturing:<\/p>\n Yes. The small clamping range of up to 30mm makes it ideal for dress shirts, school uniforms, blouses, and similar garments requiring standard-sized buttonholes.<\/p>\n It is compatible with Juki LBH-761, LBH-771, LBH-780, LBH-781, LBH-782, LBH-783, LBH-791S, and LBH-791NS industrial buttonhole sewing machines.<\/p>\n Yes. It fits Jack JK-781 and JK-T781 models, along with other equivalent industrial buttonhole machines that share the same mechanical framework.<\/p>\n This work clamp is designed for buttonholes up to approximately 30mm<\/strong>, making it suitable for standard garment buttonhole production.<\/p>\n It is designed for light to medium-weight fabrics including cotton, linen, poplin, polyester blends, blouse fabrics, and uniform textiles.<\/p>\n Replace the clamp if it becomes worn, bent, damaged, or no longer holds fabric securely, as this can affect buttonhole quality and stitch consistency.<\/p>","protected":false},"excerpt":{"rendered":" The B1511-771-0A0 Work Clamp Presser Foot is designed for Juki LBH and Jack JK-781 industrial buttonhole sewing machines. Its 30mm clamping range securely holds light to medium-weight fabrics, ensuring clean buttonhole cutting, accurate stitching, and reliable high-speed production.<\/p>","protected":false},"featured_media":14353,"template":"","meta":[],"product_brand":[1308],"product_cat":[1021],"product_tag":[1434,1440,1413,1441,1437,1345,1439,1436,1438,1435,1443,1445,1442,1419,1444],"class_list":["post-5071","product","type-product","status-publish","has-post-thumbnail","product_brand-magneto","product_cat-presser-foot-for-sewing-machine","product_tag-b1511-771-0a0","product_tag-buttonhole-clamp","product_tag-buttonhole-presser-foot","product_tag-garment-sewing-machine-parts","product_tag-industrial-buttonhole-machine-parts","product_tag-industrial-sewing-accessories","product_tag-jack-buttonhole-spare-parts","product_tag-jack-jk-781-parts","product_tag-juki-buttonhole-spare-parts","product_tag-juki-lbh-781-parts","product_tag-shirt-buttonhole-foot","product_tag-taking-tk-781-parts","product_tag-work-clamp-assembly","product_tag-work-clamp-presser-foot","product_tag-zoje-zj-781-parts","first","instock","sale","shipping-taxable","purchasable","product-type-simple"],"yoast_head":"\n\n
\nWhat You Get With This Buttonhole Presser Foot<\/h2>\n
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\nKey Features<\/h2>\n
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\nCompatible Sewing Machines<\/h2>\n
Compatible Juki Models<\/h3>\n
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Compatible Jack Models<\/h3>\n
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Also Compatible With<\/h3>\n
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\nBest Fabric Types<\/h2>\n
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\nWhy Choose This Work Clamp Presser Foot?<\/h2>\n
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\nApplications<\/h2>\n
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\nInstallation Guide<\/h2>\n
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\nMachine Compatibility Table<\/h2>\n
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\n \nMachine Type<\/th>\n Compatible<\/th>\n<\/tr>\n<\/thead>\n \n Juki LBH-761<\/td>\n \u2714 Yes<\/td>\n<\/tr>\n \n Juki LBH-771<\/td>\n \u2714 Yes<\/td>\n<\/tr>\n \n Juki LBH-780<\/td>\n \u2714 Yes<\/td>\n<\/tr>\n \n Juki LBH-781<\/td>\n \u2714 Yes<\/td>\n<\/tr>\n \n Juki LBH-782<\/td>\n \u2714 Yes<\/td>\n<\/tr>\n \n Juki LBH-783<\/td>\n \u2714 Yes<\/td>\n<\/tr>\n \n Juki LBH-791S<\/td>\n \u2714 Yes<\/td>\n<\/tr>\n \n Juki LBH-791NS<\/td>\n \u2714 Yes<\/td>\n<\/tr>\n \n Jack JK-781<\/td>\n \u2714 Yes<\/td>\n<\/tr>\n \n Jack JK-T781<\/td>\n \u2714 Yes<\/td>\n<\/tr>\n \n Zoje ZJ-781<\/td>\n \u2714 Yes<\/td>\n<\/tr>\n \n Taking TK-781<\/td>\n \u2714 Yes<\/td>\n<\/tr>\n \n Single Needle Lock Stitch Machine<\/td>\n \u2718 No<\/td>\n<\/tr>\n \n TA1 Umbrella Sewing Machine<\/td>\n \u2718 No<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n
\nFrequently Asked Questions<\/h1>\n
Is this B1511-771-0A0 work clamp suitable for shirt buttonholes?<\/h3>\n
\nWhich Juki machines does this fit?<\/h3>\n
\nIs it compatible with Jack buttonhole machines?<\/h3>\n
\nWhat is the maximum buttonhole size?<\/h3>\n
\nWhat fabrics work best with this clamp?<\/h3>\n
\nWhen should I replace the work clamp?<\/h3>\n