JET GH-1440-3 Geared Head Lathe with Newall DP700 DRO and Collet Closer is a heavy-duty, professional-grade engine lathe from JET engineered for machinists who demand precision, durability, and versatility in demanding shop environments. Weighing over one ton and built around precision induction hardened ground bed-ways, spindle roller bearings, and high-quality steel hardened gears in the headstock, this 3HP geared head lathe delivers the ultimate in working durability. The enclosed gearbox design, standard coolant system, and lead screw cover ensure smooth and quiet operation while maintaining peak performance, making this machine a cornerstone tool for turning, threading, and taper work.

Key Features

• Precision induction hardened ground bed-ways, spindle roller bearings, and high-quality steel hardened gears in the headstock for ultimate working durability
• Compound and cross slide have backlash elimination for improved accuracy and repeatability
• Independent lead screw and feed rod for versatile threading and feeding operations
• Splined, T-keyed shafts are utilized throughout for robust power transmission
• Spindle actuation control is apron mounted for convenient operator access
• Spindle jog button for easy gear engagement and spindle inching
• Inch-metric dials are standard, supporting both measurement systems without additional tooling
• Tailstock may be offset for turning taper, expanding workpiece versatility
• Front removable chip tray simplifies cleanup and maintains a safer work area
• Full length splash guard protects the operator and surrounding environment from coolant and chips
• Safety on/off switch and emergency stop within easy reach of the operator
• Patented Electronic Chuck Key Docking Station prevents startup without the chuck key when safely docked
• Enclosed gearbox design and lead screw cover provide smooth, quiet operation
• Standard coolant system supports continuous machining operations
• 12 spindle speeds and 40 longitudinal and cross feed rates for broad application flexibility
• 40 inch thread pitches and 23 metric thread pitches available

Specifications

• Stock Number: 323412
• Motor: 3HP, 230/460V, 3PH
• Number of Spindle Speeds: 12
• Number of Inch Threads: 40
• Range of Inch Threads (TPI): 4-112
• Number of Metric Threads: 23
• Number of Longitudinal and Cross Feed Rates: 40
• Range of Longitudinal Feeds (IPR): 0.0012-0.0294
• Range of Cross Feeds (IPR): 0.0004-0.0103
• Carriage Travel (In.): 37-1/2
• Compound Slide Travel (In.): 3-1/2
• Length of Gap (In.): 9-3/8
• Max Tool Size (In.): 5/8 x 5/8
• Overall Dimensions (L x W x H) (In.): 74-4/5 x 28 x 46
• Country of Origin: China
• Prop 65: Cancer and Reproductive Harm

Frequently Asked Questions

What threading capabilities does the JET GH-1440-3 offer?

The GH-1440-3 supports 40 inch thread pitches ranging from 4-112 TPI and 23 metric thread pitches, with an independent lead screw and feed rod providing flexible and accurate threading across both measurement systems. Inch-metric dials are standard on the machine.

How does the backlash elimination on the compound and cross slide benefit machining accuracy?

The backlash elimination feature on both the compound and cross slide minimizes unwanted play in the slide movements, resulting in more precise cuts, improved repeatability, and greater dimensional accuracy when turning or facing workpieces.

Can the tailstock be used to turn tapers on this lathe?

Yes. The tailstock may be offset for turning taper, allowing machinists to produce tapered workpieces by adjusting the tailstock laterally relative to the spindle centerline.

What safety features are included with the GH-1440-3?

The GH-1440-3 includes a safety on/off switch, an emergency stop within easy reach of the operator, and a patented Electronic Chuck Key Docking Station that prevents the lathe from starting unless the chuck key is safely docked, significantly reducing the risk of accidental chuck key ejection.