The JET GH-1440-1 Geared Head Lathe with Newall DP700 DRO and Taper Attachment is a professional-grade engine lathe from JET engineered for demanding metalworking operations that require precision threading, turning, and taper work. 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 machine delivers ultimate working durability for production and tool room environments. The enclosed gearbox design, standard coolant system, and lead screw cover combine to provide smooth, quiet operation while maintaining peak performance, and the integrated Newall DP700 Digital Readout and taper attachment make this a highly capable, ready-to-work package.

Key Features

• Compound and cross slide have backlash elimination for precise, repeatable cuts
• Front removable chip tray for fast and convenient cleanup
• Full length splash guard to contain coolant and chips during operation
• Gearbox provides larger threading and feed capabilities with gear changes, supporting 40 inch threads (4-112 TPI) and 23 metric threads (0.45-7.5mm)
• Inch-metric dials are standard for versatile measurement without additional tooling
• Safety on/off switch for reliable operator protection
• Spindle actuation control is apron mounted for convenient, ergonomic access
• Spindle jog button for easy gear engagement and spindle inching
• Splined, T-keyed shafts are utilized for robust, positive power transmission
• Tailstock may be offset for turning taper, complementing the included taper attachment
• Patented electronic chuck key docking station prevents startup without the chuck key when safely docked
• Precision induction hardened and ground bed-ways for long-term accuracy and wear resistance
• 12 spindle speeds with a range of 40 RPM for matching cutting conditions to material and operation
• 40 longitudinal and cross feed rates for maximum process flexibility
• Newall DP700 Digital Readout included for accurate, real-time position measurement
• 3 HP, 230V, 1-phase motor for single-phase shop compatibility

Specifications

• MPN: JT9-323384
• Stock Number: 323384
• Motor: 3HP, 230V, 1PH
• Number of Spindle Speeds: 12
• Range of Spindle Speeds (RPM): 40
• Number of Inch Threads: 40
• Range of Inch Threads (TPI): 4-112
• Number of Metric Threads: 23
• Range of Metric Threads: 0.45-7.5
• 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 power supply is required to operate the JET GH-1440-1?

This lathe is powered by a 3HP, 230V, 1-phase motor, making it compatible with standard single-phase electrical service commonly found in individual shops and smaller facilities without the need for three-phase power infrastructure.

How many threading options does the gearbox support?

The gearbox provides 40 inch thread options ranging from 4-112 TPI and 23 metric thread options ranging from 0.45-7.5mm, all selectable through gear changes without the need to swap change gears for most common threading operations.

Does this lathe support taper turning?

Yes. This package includes a taper attachment specifically for taper turning, and the tailstock may also be offset for turning taper, giving operators two independent methods for producing tapered workpieces.

What safety features are built into the GH-1440-1?

The lathe includes a safety on/off switch, a spindle jog button for controlled gear engagement and spindle inching, and a patented electronic chuck key docking station that prevents the machine from starting unless the chuck key is safely docked - helping prevent accidental chuck key ejection incidents.