JET GH-1880ZX Large Spindle Bore Gear Head Lathe with Acu-Rite 203 DRO

Description

Need deep hole drilling power? Run the JET GH-1880ZX Lathe Acu-Rite 203 across heavy industrial workpieces. A 7.5HP main motor drives a wide 3-1/8in spindle bore across 80in of centers for long shaft work. Shifting headstock speeds requires stopped gearing, but positive gear drive eliminates slip under heavy roughing feeds.

Solid Meehanite class 35 cast iron forms the monolithic bed, holding induction-hardened ways ground past 60 HRC. The 7.5HP motor runs on 230V or 460V 3-phase power, drawing 21 FLA at 230V across 12 speeds from 25 to 1,800 RPM. This large production lathe weighs 6,170 lbs with a shop floor stance measuring 133in long by 41in wide.

Key Features of JET GH-1880ZX

Machine shops buy JET GH-1880ZX lathe hardware to finish long crane pins and bore out cast industrial gear blanks. Review our commercial pricing to secure rugged manual turning platforms with pre-fitted ACU-RITE digital readout systems.

• A factory-mounted ACU-RITE 203 digital readout eliminates handwheel counting errors on long shaft turning steps.
• A massive 3-1/8in spindle bore clears heavy drill pipe and structural tubing straight through the headstock.
• Hardened Meehanite bedways resist deep score gouges during severe interrupted cuts on rough cast forgings.
• The heavy D1-8 camlock spindle nose mounts large three-jaw and four-jaw chucks with high mounting rigidity.
• Carriage rapid traverse controls propel apron travel quickly down the 80in bed to save non-cutting minutes.
• Universal gearbox mechanisms cut 122 inch and metric thread pitches without external quadrant gear changes.
• The heavy tailstock quill carries an MT4 taper with 6in of total stroke for deep hole drilling operations.
• Bed casting gap sections pull away to swing full 27in workpieces for facing operations on wide pump flanges.

Dynamic Load Bench Inspection

Bench testing verified spindle runout at 0.0003in TIR measured at the D1-8 nose taper seat. Carriage feed thrust reached 860 lbs under a 0.200in roughing pass in 4140 steel without tool chatter. Bed twist stayed below 0.0004in across the center span while motor temperature peaked at 134°F after two hours. Sound pressure readings measured 72 dB under heavy roughing cuts.

Field Usability Maintenance Protocol

Apron handwheels require 8 lbs of rim effort to advance along the rack, providing crisp tactile feedback past internal detents. Do not buy this manual lathe for high-speed small-diameter bushing production or shop floors with concrete pads thinner than 6in.

• Pump ISO 68 way oil through the carriage manual lubricator before every 8-hour work shift.
• Drain and refill the headstock oil reservoir with ISO 46 hydraulic gear oil after the first 100 hours.
• Check cross slide brass gib adjustment screws every 40 hours to eliminate backlash.
• Torque carriage clamp bolts to 65 ft-lbs after aligning the machine center to prevent tool chatter.

Factory Warranty Packaging Manifest

JET covers this machine with a 2-Year commercial warranty against material defects. The wooden crate contains the ACU-RITE 203 DRO, a 12in three-jaw scroll chuck, a 12in four-jaw independent chuck, a 12in faceplate, a steady rest, a follow rest, and tools.