{"product_id":"jet-690400-vertical-milling-machine-3-axis-dro","title":"Jet 690400 Vertical Milling Machine 3-axis Dro","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe JET 690400 is a vertical knee milling machine configured with a 200S 3-axis digital readout (DRO) and an air draw bar. The machine is built around a knee-style column-and-knee design, allowing the operator to raise and lower the table along the Z-axis independently of the spindle. The integrated 3-axis DRO provides real-time position readout on the X, Y, and Z axes, reducing setup time and improving repeatability on production and prototype work. The air draw bar speeds tool changes by releasing the collet or tool holder with pneumatic force rather than manual striking.\u003c\/p\u003e\n\u003cp\u003eThis milling machine is suited for job shops, tool rooms, and light manufacturing environments where precision manual milling operations are performed. The JTM-4VS designation indicates a variable-speed head, giving the operator stepless spindle speed adjustment without belt changes. Typical applications include face milling, end milling, drilling, boring, and tapping on ferrous and non-ferrous workpieces. Installation and commissioning are performed by qualified machine tool technicians or millwrights.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e3-axis DRO (200S) provides continuous X, Y, and Z position display for accurate part location\u003c\/li\u003e\n  \u003cli\u003eAir draw bar enables fast, repeatable tool changes without a draw bar hammer\u003c\/li\u003e\n  \u003cli\u003eVariable-speed spindle head (JTM-4VS) allows stepless RPM adjustment\u003c\/li\u003e\n  \u003cli\u003eKnee-style Z-axis raises and lowers the table independent of quill travel\u003c\/li\u003e\n  \u003cli\u003eSold as a complete configured unit ready for installation and tramming\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a complete OEM-configured vertical knee milling machine assembly. Specific tooling and accessory compatibility depends on the spindle taper specification; consult the machine documentation for collet and tool holder requirements.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation of a knee milling machine requires a level, rigid foundation and should be performed by a qualified millwright or machine tool technician. Disconnect and lock out all electrical and pneumatic supplies before connecting or servicing the air draw bar system. Verify that the shop air supply meets the pressure and flow requirements specified in the machine manual before operating the air draw bar. Tram the head and verify table alignment after final positioning and before cutting.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConfiguration\u003c\/strong\u003e: Vertical Knee Mill with 3-Axis DRO and Air Draw Bar\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDRO Model\u003c\/strong\u003e: 200S 3-Axis\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUnit of Measure\u003c\/strong\u003e: Each\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUPC\u003c\/strong\u003e: 731325184945\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: JET\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 690400\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"JET","offers":[{"title":"Default Title","offer_id":51345368547634,"sku":"690400","price":26738.47,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/310501182.jpg?v=1782056032","url":"https:\/\/voomisupply.com\/products\/jet-690400-vertical-milling-machine-3-axis-dro","provider":"Voomi Supply","version":"1.0","type":"link"}