{"product_id":"value-collection-mj01-machinist-jack-1000-lb-3-4-in","title":"Value Collection MJ01 Machinist Jack 1000 Lb 3-4 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VALUE COLLECTION MJ01 is a machinist jack screw designed to provide adjustable support for workpieces during machining, grinding, and inspection operations. It adjusts from a minimum height of 3 inches to a maximum height of 4 inches, with a load capacity of 1,000 pounds. The threaded screw design allows for precise height setting so machinists can achieve stable, repeatable support under irregularly shaped or cantilevered parts. This type of jack is a standard tool in machine shops and precision fabrication environments and is typically used alongside a matched set to distribute workpiece load.\u003c\/p\u003e\u003cp\u003eThe MJ01 is suited for use in machine shop environments where controlled workpiece support is needed on mill tables, surface plates, and inspection fixtures. It handles loads up to 1,000 pounds and provides a stable footing through its height-adjustment range. Single-piece construction makes it easy to deploy individually or in groups as the job requires.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eAdjustable height range from 3 inches to 4 inches for flexible workpiece support\u003c\/li\u003e\n\u003cli\u003e1,000 pound minimum load capacity for use with substantial workpieces\u003c\/li\u003e\n\u003cli\u003eThreaded screw design allows fine height adjustment\u003c\/li\u003e\n\u003cli\u003eCompact overall height of 4 inches suits low-clearance setups\u003c\/li\u003e\n\u003cli\u003eSold as a single unit for mix-and-match set configurations\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard machinist jack screw for general-purpose use on mill tables, surface plates, and precision inspection fixtures where adjustable workpiece support is required.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eMachinist jack screws are installed and adjusted by machinists and toolroom technicians. Before placing the workpiece, ensure the jack base is clean and seated flush on the work surface to prevent tipping. Adjust the screw height before applying the full workpiece load, and verify stability at all contact points prior to beginning any machining operation. Never exceed the rated load capacity of the jack.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type\u003c\/strong\u003e: Machinist Jack Screw\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Height\u003c\/strong\u003e: 3 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Height\u003c\/strong\u003e: 4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Height\u003c\/strong\u003e: 4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Load Capacity\u003c\/strong\u003e: 1,000 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Pieces\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 1 pound\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 24101635\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: VALUE COLLECTION\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: MJ01\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51716135911730,"sku":"MJ01","price":19.14,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/173dfdf6e101d9a879fac1d79e402c1d.jpg?v=1788522270","url":"https:\/\/voomisupply.com\/products\/value-collection-mj01-machinist-jack-1000-lb-3-4-in","provider":"Voomi Supply","version":"1.0","type":"link"}