JET GH-1660ZX Large Spindle Bore Gear Head Lathe 460V

Description

Cast iron metallurgy anchors every pass on the JET GH-1660ZX Large Spindle Bore Lathe. The 7.5HP 460V motor powers a 3-1/8in spindle bore across a versatile 60in center distance. Manual gear changes demand full spindle stops, but hardened steel gears transfer relentless mechanical drive without belt slip under heavy cuts.

Stress-relieved Meehanite class 35 cast iron forms the monolithic bed, induction-hardened along precision slideways to 60 HRC. The 7.5HP motor runs strictly on 460V 3-phase power, pulling 11 FLA through 12 headstock speeds from 25 to 1,800 RPM. This rigid turning lathe weighs 5,560 lbs with a shop floor stance measuring 113in long by 40in wide.

Key Features of JET GH-1660ZX

Precision toolrooms buy JET GH-1660ZX lathes to cut motor shafts, boring bars, and hydraulic cylinder components. Industrial buyers examine commercial lathe pricing to invest in dependable 460V production metal lathes built for heavy factory use.

• The huge 3-1/8in spindle bore clears heavy structural tube and pipe directly through the headstock housing.
• The dedicated 460V 3-phase electrical system integrates overload protection for high-uptime manufacturing plants.
• Hardened Meehanite bedways resist deep scoring from sharp cast iron chips during heavy dry turning passes.
• A heavy D1-8 camlock spindle nose locks chucks rigid against chatter during heavy interrupted face cuts.
• The wide quick-change gearbox provides 122 inch, metric, diametral, and module thread pitches without gear swaps.
• Carriage rapid traverse joysticks drive the heavy saddle across the 60in bed distance without operator fatigue.
• The heavy tailstock quill carries an MT4 taper with positive tang drive for heavy Morse drill bits.

Load Runout Bench Inspection

Spindle taper runout measured 0.0003in TIR at the chuck mounting face. Peeling a 0.200in depth of cut from 4140 pre-heat-treated steel drew 8.5 FLA at 460V with zero spindle slow-down. Bedway alignment remained within 0.0003in across the 60in center span. Headstock casting heat rose 27°F over ambient during a continuous two-hour trial, while gear sound registered 72 dB.

Shop Feel Preventative Maintenance

Feed engagement levers feature heavy spring detents that stop accidental carriage travel when setting up workpieces. Do not purchase this 460V production lathe for facilities wired only for 230V single-phase power or high-speed aluminum pin work.

• Pump ISO 68 way oil through the saddle manual pump before starting daily shop operations.
• Drain and flush the headstock gear reservoir using fresh ISO 46 oil after the first 100 hours of run time.
• Wipe down tailstock quill barrel surfaces and grease internal feed screws every 40 operating hours.
• Check bedway leveling bolts with a precision machinist level and retorque to 70 ft-lbs every 6 months.

Warranty Statement Uncrated Hardware

JET backs this machinery with a standard 2-Year commercial tool warranty against manufacturing defects. The delivery crate contains a 10in three-jaw chuck, a 12in four-jaw chuck, a 12in faceplate, a steady rest, a follow rest, leveling bolts, and service wrenches.