16" x 60" Large Spindle Bore Gear Head Lathe(GH-1660ZX)
The JET GH-1660ZX is built for shops that need extended turning length without sacrificing spindle capacity or horsepower. With 60 inches between centers, a 3.15" spindle bore, and a 10HP 3-phase motor, this large spindle bore gear head lathe delivers the reach and torque required for longer shafts, rollers, hydraulic components, and heavy cylindrical parts.
The added bed length compared to 40" models expands job capability, allowing fabrication, MRO, and industrial repair shops to machine longer workpieces in a single setup — reducing repositioning time and improving accuracy across the entire part.
A D1-8 spindle nose supports heavy-duty workholding, while 12 spindle speeds (26–1500 RPM) provide the control needed for precision threading, deep boring, aggressive roughing, and finish turning.
The GH-1660ZX features a rigid one-piece cast iron base designed to dampen vibration and maintain alignment during heavy cuts. Larger stock can pass directly through the headstock, reducing cutoffs and secondary operations.
Operator safety and compliance are standard. The machine includes:
- Electronic chuck key holder
- Foot brake
- Chuck guard
- Lead screw cover
- Full-length splash guard
- UL 987 Certification
Each unit undergoes JET’s documented 30-Point Inspection prior to shipment to verify spindle accuracy, gear function, safety validation, and operational readiness.
Backed by JET’s industry-leading 2-year parts and labor warranty, the GH-1660ZX is a reliable solution for fabrication facilities, energy suppliers, industrial maintenance departments, and machine shops expanding into longer-part turning.
OPTIONAL ACCESSORIES
- Collet Closer (Optional)
- Taper Attachment (Optional)
- 2-Axis DRO (Optional)

| Stock Number | JT1-2713 |
|---|---|
| Carriage Travel (In.) | 35 |
| Compound Slide Travel (In.) | 5.9 |
| Cross Slide Travel (In.) | 9.8 |
| Diametral Pitch Threads Number | 21 |
| Distance Between Centers (In.) | 60" |
| Drive | Geared Head |
| Length of Gap (In.) | 7-2/3 |
| Max Tool Size (In.) | 5/8 x 5/8 |
| Model Number | GH-1660ZX |
| Modular Pitch Threads Number | 18 |
| Modular Pitch Threads Range | 0.3 - 3.5 |
| Motor Phase | 3 |
| Motor Power (HP) | 10 |
| Motor Voltage (V.) | 230 |
| Number of Inch Threads | 45 |
| Number of Longitudinal and Cross Feed Rates | 40 |
| Number of Metric Threads | 39 |
| Number of Spindle Speeds | 12 |
| Overall Dimensions (L x W x H) (In.) | 79 x 28-1/2 x 30 |
| Prop 65 | Cancer 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 Threads | 0.2 - 14mm |
| Range of Spindle Speeds (RPM) | 26-1500 RPM |
| Size | 16 x 40 |
| Spindle Bore (In.) | 3-1/8 |
| Spindle Mount | D1-8 |
| Spindle Taper | MT-7 (with sleeve MT-5) |
| Spindle Taper with Sleeve | MT-5 |
| Steady Rest Capacity (In.) | 2-3/4 |
| Style (Type) | Engine - Large Spindle Bore |
| 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 Spindle | MT-4 |
| Warranty | 2 Year |
| Width of Bed (In.) | 12.5" |
| Gross Weight | 4740 |
| Net weight | 1154.0 |
