{"product_id":"jet-690430","title":"JET JTM-4VS Mill w\/3-Axis ACU-RITE 203 DRO (Knee) w\/X Y \u0026 Z-Axis Powerfeeds \u0026 Power Draw Bar","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eJET JTM-4VS Mill with 3-Axis ACU-RITE 203 DRO (Knee), X\/Y\/Z-Axis Powerfeeds, and Power Draw Bar\u003c\/strong\u003e is a precision vertical milling machine from JET engineered for demanding machining operations that require accuracy, repeatability, and versatile speed control. Built on a Certified Meehanite casting process, this variable speed mill delivers consistent, reliable performance across a broad spindle speed range of 60 to 4,200 RPM, making it well-suited for toolrooms, job shops, and production environments where quality and efficiency are essential.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAdjustable gibs throughout for precise, fine-tuned axis alignment and reduced play\u003c\/li\u003e\n\u003cli\u003eHeavy-duty spindle brake for fast, controlled spindle stops between operations\u003c\/li\u003e\n\u003cli\u003eHeavy-duty splined motor drive engineered for reliable power transmission under demanding loads\u003c\/li\u003e\n\u003cli\u003eInternal coolant tank built into the casting base for use with a coolant system (coolant pump not included)\u003c\/li\u003e\n\u003cli\u003eLarge diameter quill is chromed for durability and smooth, consistent travel\u003c\/li\u003e\n\u003cli\u003eOne-shot lubrication system simplifies maintenance and ensures consistent way lubrication\u003c\/li\u003e\n\u003cli\u003ePrecision hardened and ground ways and table for long-term accuracy and surface integrity\u003c\/li\u003e\n\u003cli\u003eSpindle head is internally cooled to maintain thermal stability during extended machining cycles\u003c\/li\u003e\n\u003cli\u003eTolerance test sheet included to verify machine accuracy upon delivery\u003c\/li\u003e\n\u003cli\u003ePrecision bored and honed milling head ensures quality, repeatable cuts\u003c\/li\u003e\n\u003cli\u003eThree-stage power downfeed with automatic stop for operator ease and process control\u003c\/li\u003e\n\u003cli\u003eACU-RITE 203 3-Axis Digital Readout (DRO) on the knee provides real-time positional feedback on X, Y, and Z axes\u003c\/li\u003e\n\u003cli\u003eX, Y, and Z-axis powerfeeds for automated table movement and reduced operator fatigue\u003c\/li\u003e\n\u003cli\u003ePneumatic power draw bar for fast, efficient tool changes\u003c\/li\u003e\n\u003cli\u003eVariable speed R-8 spindle taper configuration for broad tooling compatibility\u003c\/li\u003e\n\u003cli\u003eAvailable in single or three-phase power configurations\u003c\/li\u003e\n\u003cli\u003eBacked by JET's industry-leading Two-Year full service and parts warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMPN:\u003c\/strong\u003e JT9-690430\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStock Number:\u003c\/strong\u003e 690430\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e Taiwan\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotor:\u003c\/strong\u003e 3 HP, 230\/460V, 3Ph\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRange of Spindle Speeds (RPM):\u003c\/strong\u003e 60 - 4,200\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpindle Taper:\u003c\/strong\u003e R-8\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpindle Travel (In.):\u003c\/strong\u003e 5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuill Diameter (In.):\u003c\/strong\u003e 3-3\/8\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuill Down Feed Rates (IPR):\u003c\/strong\u003e .0015 - .003 - .006\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCollet Capacity:\u003c\/strong\u003e 1\/8 - 7\/8\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTable Longitudinal Travel (In.):\u003c\/strong\u003e 34\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTable Longitudinal Travel With Powerfeed (In.):\u003c\/strong\u003e 28-3\/4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTable Cross Travel (In.):\u003c\/strong\u003e 12\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eT-Slot Centers (In.):\u003c\/strong\u003e 2-1\/2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDistance Spindle to Column, Max. (In.):\u003c\/strong\u003e 19\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax Distance Spindle to Table (In.):\u003c\/strong\u003e 17-1\/2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Axis:\u003c\/strong\u003e 3 (Knee)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePowerfeed:\u003c\/strong\u003e X, Y and Z-Axis\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Draw Bar:\u003c\/strong\u003e Pneumatic\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStyle (Type):\u003c\/strong\u003e Variable Speed R8\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Dimensions (L x W x H) (In.):\u003c\/strong\u003e 66 x 63 x 85\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProp 65:\u003c\/strong\u003e Cancer and Reproductive Harm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cdl\u003e\n\u003cdt\u003e\u003cstrong\u003eWhat spindle speed range does the JET JTM-4VS offer?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eThe JET JTM-4VS provides a variable spindle speed range of 60 to 4,200 RPM, allowing operators to dial in the optimal cutting speed for a wide variety of materials and tooling diameters.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eDoes this mill include a coolant pump?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eThe JTM-4VS features an internal coolant tank built directly into the casting base for use with a coolant system; however, the coolant pump is not included and must be sourced separately.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eWhat type of power draw bar is included, and what does it do?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eThis mill includes a pneumatic power draw bar, which allows for fast and efficient tool changes by pneumatically engaging and releasing the R-8 collet or toolholder in the spindle  -  reducing downtime between setups.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eHow does the ACU-RITE 203 DRO benefit machining operations on this mill?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eThe ACU-RITE 203 3-Axis Digital Readout installed on the knee provides real-time positional data across the X, Y, and Z axes, enabling precise part positioning, reduced measurement errors, and faster setup times compared to relying solely on manual dials and handwheels.\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/div\u003e","brand":"JET","offers":[{"title":"Default Title","offer_id":40249049514145,"sku":"JT9-690430","price":25372.71,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0398\/5188\/4705\/products\/690430_main_522950fa-18b8-4bd7-aebd-b6c84e1e6765.png?v=1625380090","url":"https:\/\/factorydirectsupply.com\/products\/jet-690430","provider":"FactoryDirectSupply.com","version":"1.0","type":"link"}