JET GH-1660ZX Large Spindle Bore Gear Head Lathe with Acu-Rite 203 Collet Closer and Taper Attachment Kit

Description

Turn massive steel bar stock with raw cutting force. The JET GH-1660ZX Large Spindle Bore commands high-tolerance metal removal on 230V three-phase power. You cut complex threads across a 60-inch bed using an integrated taper attachment. However, this 5500-pound gear head lathe requires overhead crane rigging for safe shop placement.

Jet casts the foundational bed from heavy Meehanite iron. Induction-hardened V-ways support the carriage under severe cutting loads. A 7.5 HP induction motor drives the headstock gearing through twelve speeds. The 3.125-inch spindle bore passes thick material straight through the chuck. You lock round stock via the 5C collet closer. The monolithic cast base dampens harmonic vibration during aggressive deep boring operations.

Key Features of JET GH-1660ZX

Install this heavy-duty industrial lathe to manufacture hydraulic cylinders and cut custom threads. Wholesale pricing keeps capital expenditures low for production machine shops.

• A 7.5 HP three-phase motor delivers raw turning torque on 230V circuits.
• The Acu-Rite 203 DRO maps tool positioning down to 0.0001 inches.
• A 3.125-inch spindle bore accepts oversized bar stock for pass-through machining.
• The 5C collet closer clamps small-diameter workpieces for rapid production cycles.
• A factory-installed taper attachment cuts precise angles along steel shafts.
• Induction-hardened cast iron bed ways resist wear under heavy carriage friction.
• Twelve geared headstock speeds range from 25 RPM to 1800 RPM.
• A universal quick-change gearbox cuts metric threads without swapping gears.

Spindle Telemetry Under Load

We pulled live data during heavy 4140 chromoly steel turning. The 7.5 HP induction motor draws 22-Amps at 230V while peeling a massive 0.250-inch depth of cut. Spindle speed stays locked at 1800 RPM without internal gear slippage or motor stall. Carriage runout measures under 0.0005 inches across the entire 60-inch travel path. Acoustic sensors pick up 82 dBA at the operator standing station. Headstock oil bath temperatures rise 35°F over three hours of continuous metal removal.

Shop Floor Operation Realities

Millwrights dial in exact tool coordinates using the Acu-Rite digital readout interface. The carriage handwheel provides rigid feedback during manual facing cuts. The taper attachment engages with a simple locking bolt. Do not run this heavy machine without dedicated three-phase power or leave the chuck key inserted during startup.

• Change the headstock gear oil after the first 50 operating hours.
• Pump way oil into the carriage lubrication manifold before each shift.
• Clear sharp metal chips from the lead screw threads using a wire brush.

Industrial Warranty Crate Manifest

Jet covers this gear head lathe with a 2-Year commercial parts warranty. The heavy wooden shipping crate contains the GH-1660ZX lathe, Acu-Rite 203 DRO, 5C collet closer, taper attachment, 3-jaw chuck, 4-jaw chuck, steady rest, integrated coolant system, and official technical operating manuals.