{"id":1775,"date":"2026-10-21T07:16:11","date_gmt":"2026-10-21T07:16:11","guid":{"rendered":"https:\/\/kaivoy.com\/machinery\/log-grapple-clamshell\/"},"modified":"2026-10-21T07:22:34","modified_gmt":"2026-10-21T07:22:34","slug":"log-grapple-clamshell","status":"publish","type":"page","link":"https:\/\/kaivoy.com\/zh\/machinery\/log-grapple-clamshell\/","title":{"rendered":"Clamshell Grapple \u2013 Two-Piece Shell"},"content":{"rendered":"<figure data-spectra-id=\"spectra-d9bc4f1f-b901-4fbf-a594-27eacda1b33a\" class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"542\" src=\"https:\/\/kaivoy.com\/wp-content\/uploads\/2026\/10\/14_clamshell_grapple.jpg\" alt=\"clamshell grapple two piece shell\" class=\"wp-image-1449\" srcset=\"https:\/\/kaivoy.com\/wp-content\/uploads\/2026\/10\/14_clamshell_grapple.jpg 800w, https:\/\/kaivoy.com\/wp-content\/uploads\/2026\/10\/14_clamshell_grapple-300x203.jpg 300w, https:\/\/kaivoy.com\/wp-content\/uploads\/2026\/10\/14_clamshell_grapple-768x520.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>A two-piece shell that closes like a clamshell, for digging and lifting loose material rather than gripping a trunk.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Where a tine grapple grips a load between fingers, a clamshell encloses it between two shells. That makes it the right tool for loose material &#8211; wet spoil, sand, gravel, dredged silt &#8211; which would simply fall between the tines of a log grapple.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">At a glance<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Item<\/th><th>Specification<\/th><\/tr><\/thead><tbody><tr><td>Model<\/td><td>\u8d1d\u58f3\u6293\u6597<\/td><\/tr><tr><td>Tine \/ jaw layout<\/td><td>See drawing for the arrangement on your order<\/td><\/tr><tr><td>Head type<\/td><td>Fixed or rotating &#8211; confirmed at order<\/td><\/tr><tr><td>Hydraulic supply<\/td><td>One auxiliary circuit (rotating head)<\/td><\/tr><tr><td>\u5b89\u88c5<\/td><td>Headstock machined to your pin diameter and centre distance<\/td><\/tr><tr><td>Carrier class<\/td><td>Matched to your machine &#8211; tonnage and lift chart confirmed before release<\/td><\/tr><tr><td>Finish<\/td><td>Two-pack paint, colour to order<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Dimensions, opening and working load are confirmed against your drawing before production. Nothing on this page is a substitute for that confirmation.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What it is used for<\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li>Dredging and desilting channels<\/li><li>Handling wet spoil and sand<\/li><li>Loading loose aggregate<\/li><li>Working in confined excavations where a bucket cannot swing<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">How it is built<\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li>Two-piece welded shell<\/li><li>Hardened cutting edges<\/li><li>Cylinder with guarded rod<\/li><li>Headstock to your pin pattern<\/li><li>Fixed or rotating head available<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">What to send with your inquiry<\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li>Excavator make and model, and the lift chart if you have it<\/li><li>Coupler type &#8211; S30, S40, S45, S80 &#8211; or the pin diameter and centre distance<\/li><li>Auxiliary hydraulic flow and pressure (litres per minute and bar)<\/li><li>What you will handle: log diameter and length, or material type for a clamshell<\/li><li>Any opening or width the job requires<\/li><li>Photos of the machine and the coupler help more than a written description<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Ordering notes<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Each unit is built to the headstock and hydraulic specification confirmed on the drawing. Confirm the drawing before production starts &#8211; after the body is cut and the headstock is machined, changes to the pin pattern mean a new headstock, not an adjustment. Spare bushings and pins can be supplied with the unit so the first rebuild does not wait on parts.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Questions we are usually asked<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Clamshell or tine grapple?<\/strong><br>If the load holds its shape &#8211; timber, poles, stone blocks &#8211; use a tine grapple. If it flows &#8211; wet spoil, sand, silt &#8211; use a clamshell, otherwise the material runs out between the tines.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Can it be used for underwater work?<\/strong><br>Desilting is one of its main uses. Tell us the working depth at inquiry so the sealing and finish can be discussed for your order.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>What size shell do I need?<\/strong><br>It follows the machine class and the volume you move per cycle. Send the machine model and your required capacity and we size the shell.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Related<\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li><a href=\"https:\/\/kaivoy.com\/zh\/machinery\/excavator-attachments\/\">All excavator attachments &#8211; 45 models<\/a><\/li><li><a href=\"https:\/\/kaivoy.com\/zh\/machinery-attachments-specifications\/\">Attachment specifications and interface standards<\/a><\/li><li><a href=\"https:\/\/kaivoy.com\/zh\/contact\/\">Send your machine details for a quotation<\/a><\/li><\/ul>","protected":false},"excerpt":{"rendered":"<p>A two-piece shell that closes like a clamshell, for digging and lifting loose material rather than gripping a trunk. Where a tine grapple grips a load between fingers, a clamshell encloses it between two shells. That makes it the right tool for loose material &#8211; wet spoil, sand, gravel, dredged silt &#8211; which would simply [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":1449,"parent":1278,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center 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