16" x 40" Large Spindle Bore Gear Head Lathe(GH-1640ZX)

Stock Number
JT1-2712

The JET GH-1640ZX is engineered for shops that require increased horsepower, larger through-spindle capacity, and greater rigidity without moving to a longer bed machine. With a powerful 10HP, 3-phase motor and a 3.15" spindle bore, this 16" x 40" gear head lathe is built to handle heavier stock, tougher materials, and higher material removal rates.


The D1-8 spindle nose supports industrial-grade workholding solutions, while 12 spindle speeds ranging from 26–1500 RPM provide the torque and flexibility required for aggressive turning, precision threading, deep boring, and production-facing operations.


Safety and uptime are standard — not optional. The GH-1640ZX includes an electronic chuck key holder, foot brake, chuck guard, full-length splash guard, lead screw cover, and is UL 987 Certified for electrical compliance.


Every unit undergoes JET’s documented 30-Point Inspection before shipment to verify accuracy, gear engagement, safety systems, and operational readiness.


Backed by JET’s industry-leading 2-year parts and labor warranty, the GH-1640ZX is ideal for fabrication shops, energy-sector suppliers, industrial maintenance teams, and precision machining operations upgrading legacy equipment.



The 10HP motor provides the torque needed for deeper passes, harder materials, and improved metal removal rates compared to lower horsepower machines
Larger 3.15" Through-Spindle Capacity Accommodates larger diameter stock, reducing secondary operations and increasing shop efficiency
Industrial D1-8 Spindle Nose Supports robust workholding setups for demanding fabrication and production environments
Rigid Cast Iron Construction One-piece base minimizes flex and vibration, improving repeatability and surface finish during heavy-duty turning
Certified Operator Protection UL 987 Certified with standard foot brake, chuck guard, electronic chuck key holder, and lead screw cover to reinforce safe operation
Inspected, Tested, and Ready to Run JET’s 30-Point Pre-Shipment Inspection verifies spindle accuracy, safety systems, controls, and gear function before arrival
More Information
Stock NumberJT1-2712
Carriage Travel (In.)35
Compound Slide Travel (In.)5.9
Cross Slide Travel (In.)9.8
Diametral Pitch Threads Number21
Distance Between Centers (In.)40"
DriveGeared Head
Length of Gap (In.)8
Max Tool Size (In.)5/8 x 5/8
Model NumberGH-1640ZX
Modular Pitch Threads Number18
Modular Pitch Threads Range0.3 - 3.5
Motor Phase3
Motor Power (HP)10
Motor Voltage (V.)230
Number of Inch Threads45
Number of Metric Threads39
Number of Spindle Speeds12
Prop 65Cancer and Reproductive Harm
Range of Cross Feeds (IPR)0.00075" - 0.02"
Range of Inch Threads (TPI)2-72
Range of Longitudinal Feeds (IPR)0.0015" - 0.04"
Range of Metric Threads0.2 - 14mm
Range of Spindle Speeds (RPM)26-1500 RPM
Size16" x 40"
Spindle Bore (In.)3-1/8
Spindle MountD1-8
Spindle TaperMT-7 (with sleeve MT-5)
Spindle Taper with SleeveMT-5
Style (Type)Bench - Geared Head
Swing Over Bed (In.)16
Swing Over Cross Slide (In.)10.3"
Swing Through Gap (In.)23"
Tailstock Spindle Travel (In.)5
Taper in Tailstock SpindleMT 4
Warranty2 Year
Width of Bed (In.)12.5"
Gross Weight4299
Net weight3858
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