JET GH-1640ZX 3-1/8" Spindle Bore Geared Head Lathe from JET delivers power, precision, efficiency, and reliability for demanding metal shop applications. Built on a one-piece cast iron base that absorbs vibrations during operation, this 16 x 40 lathe enables heavier cuts and consistent accuracy. The Universal Gearbox eliminates the need to change gears, streamlining setup and maximizing productivity. Every machine is backed by the industry-leading JET Two Year Warranty. Key Features One-piece cast iron base absorbs vibrations during operation for heavier cuts and greater accuracy Universal Gearbox eliminates the need to change gears for faster, more efficient operation 3-1/8" spindle bore accommodates large-diameter workpieces 12 spindle speeds ranging from 25-1,800 RPM for versatile material and cutting conditions 61 inch thread pitches (1-5/8-72 TPI) and 24 metric thread pitches (.05-20mm) for comprehensive threading capability 46 longitudinal feed rates and 31 cross feed rates provide precise control over material removal D1-8 spindle mount with MT-7 (MT-5) spindle taper for broad tooling compatibility Steady rest capacity of 3/8-7" supports a wide range of workpiece diameters Geared head drive for reliable, consistent power transmission Backed by the industry-leading JET Two Year Warranty Specifications Stock Number: 321930 Size: 16 x 40 Drive: Geared Head Spindle Bore: 3-1/8 in. Spindle Mount: D1-8 Spindle Taper with Sleeve: MT-7 (MT-5) Range of Spindle Speeds (RPM): 25-1,800 Number of Spindle Speeds: 12 Carriage Travel: 35 in. Cross Slide Travel: 9 in. Compound Slide Travel: 5-1/8 in. Length of Gap: 12-1/4 in. Max Tool Size: 1 x 1 in. Number of Inch Threads: 61 Range of Inch Threads (TPI): 1-5/8-72 Number of Metric Threads: 24 Range of Metric Threads: .05-20 Number of Longitudinal and Cross Feed Rates: 46/31 Range of Longitudinal Feeds (IPR): .0015-.0900 Range of Cross Feeds (IPR): .0006-.0360 Steady Rest Capacity: 3/8-7 in. Overall Dimensions (L x W x H): 96 x 44 x 66 in. Prop 65: Cancer and Reproductive Harm Frequently Asked Questions What is the spindle bore size on the JET GH-1640ZX? The JET GH-1640ZX features a 3-1/8" spindle bore, allowing it to accept large-diameter bar stock and workpieces that smaller lathes cannot accommodate. How many spindle speeds does the GH-1640ZX offer, and what is the range? The GH-1640ZX provides 12 spindle speeds with a range of 25-1,800 RPM, giving operators the flexibility to work with a wide variety of materials and cutting applications. Does the GH-1640ZX support both inch and metric threading? Yes. The GH-1640ZX supports 61 inch thread pitches ranging from 1-5/8-72 TPI and 24 metric thread pitches ranging from .05-20, making it suitable for a broad range of threading work without requiring manual gear changes thanks to the Universal Gearbox. What warranty comes with the JET GH-1640ZX? The JET GH-1640ZX is backed by the industry-leading JET Two Year Warranty, providing confidence in the machine's long-term reliability and performance.
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