JET GH-1440ZX Large Spindle Bore Gear Head Lathe with Newall NMS800 DRO

Description

Feel the massive low-end torque inside the JET GH-1440ZX Lathe Newall NMS800 when turning heavy alloy blanks. A 7.5HP motor turns a wide 3-1/8in spindle bore across 40in centers for rigid short-part machining. Manual speed selection requires stopping the drive, yet direct gear meshing eliminates belt slippage during heavy interrupted cuts.

Solid Meehanite gray iron forms the wide bed casting, featuring hardened slideways treated past 60 HRC. The 7.5HP dual-voltage motor draws 19 FLA on 230V 3-phase power across 12 speeds from 25 to 1,800 RPM. This metalworking lathe reaches a net unboxed weight of 5,180 lbs, occupying a physical floor stance measuring 93in long by 40in wide.

Key Features of JET GH-1440ZX

Commercial machine shops buy JET GH-1440ZX lathe packages to turn critical bushings, flanges, and pump components. Explore our direct industrial pricing to obtain a heavy-duty manual lathe outfitted with Newall digital readout equipment.

• The factory-installed Newall NMS800 digital readout reads carriage motion using sealed encoder tubes resistant to coolant.
• The large 3-1/8in spindle bore swallows heavy bar stock to turn shaft ends directly near the chuck face.
• The rigid D1-8 camlock spindle nose mounts heavy chucks securely for aggressive metal removal rates.
• Direct reading gearbox dials control carriage feeds and provide 122 English and metric thread pitches.
• An integrated coolant pump washes chips off cutting inserts to extend carbide tool life under heavy feeds.
• Bed casting gap sections unbolt to expand swing clearance for facing wide diameter pump impellers.
• The heavy cast iron tailstock uses an MT4 taper with high clamping force for heavy twist drilling.

Bench Test Deflection Data

Spindle runout checked out at 0.0002in TIR against a ground test bar in the spindle nose taper. We took a 0.180in depth roughing cut in 1018 cold-rolled steel, drawing 15 FLA without chatter or ripples on the finish. Carriage travel remained flat within 0.0002in over 40in. Motor housing temperature rose 25°F during a two-hour trial, holding noise levels at 71 dB.

Control Operation Service Schedule

Carriage controls move with positive mechanical detents, providing clean tactile engagement when switching from longitudinal to cross feed. Do not buy this lathe for small hobby shops lacking 3-phase power or facilities working on sheet metal fabrication.

• Apply ISO 68 machine way oil to bedways through the carriage one-shot lube reservoir every 8 hours.
• Replace the splash lubrication gear oil in the headstock with ISO 46 lubricant every 6 months.
• Wipe down Newall scale brackets and clean carriage wipers of fine metal grit every 40 hours.

Factory Warranty Shipping Hardware

JET protects your purchase with a 2-Year commercial warranty covering all mechanical parts. Inside the delivery crate you get the Newall NMS800 DRO, an 8in three-jaw chuck, a 10in four-jaw chuck, a 12in faceplate, a steady rest, a follow rest, and service tools.