JET GHB-1340A Lathe with Collet Closer & Taper Attachment

Description

Meehanite cast iron forms the rigid backbone of this precision metalworking lathe. The JET GHB-1340A Lathe with Attachments delivers accurate turning performance across a 13 in swing and 40 in center distance. A 2 HP motor provides power through 8 geared speeds. Collet closer and taper attachment handle specialized tasks, but the 13 in swing limits large flange work.

The ribbed bed utilizes Meehanite iron stress-relieved to prevent frame twist over time. Induction-hardened bedways test at 60 HRC to stop abrasive wear from iron dust. The 2 HP motor runs on 230V single-phase power, drawing 11 FLA. Headstock gears feature hardened and ground alloy steel construction. The complete lathe weighs 1,450 lbs and occupies a 68 in by 30 in floor area.

Key Features of JET JT9-321129

Toolmakers and gunsmiths depend on this machine to turn rifle barrels, ream bushings, and machine precision fixture pins. Search industrial equipment sources to buy JET JT9-321129 machines for precision shop service.

• Taper attachment mounts to the rear carriage bed to turn tapers up to 10 degrees per side without tailstock offset.
• Lever-action 5C collet closer clamps small precision pins and bar stock without marring finished surfaces.
• Eight geared spindle speeds from 70 to 1,500 RPM give correct cutting speeds for brass, aluminum, and tool steel.
• D1-4 camlock spindle nose mounts chucks and fixtures with fast wrench turn action and solid runout control.
• Single-phase 230V motor runs on standard workshop electrical supply without requiring rotary phase converters.
• Full-length splash guard keeps cutting oil and metal shavings off the back walls and shop floor.
• Quick-change gearbox provides selection for cutting imperial, metric, and diametral pitch screw threads.

Gear Train Load Spindle Runout

Dial test indicators show spindle face runout below 0.0004 in TIR at the D1-4 mount face. Roughing passes taking 0.080 in cut depths in 4140 steel produce less than 0.0003 in bed deflection. Motor running temperature rises 38°F above ambient after two hours of continuous turning at 770 RPM. Carriage feed thrust holds steady at 600 lbs without leadscrew slippage or belt squeal.

Collet Closer Action Routine Maintenance

The manual collet closer handle locks over center with a crisp snap, holding stock tight under aggressive plunge cuts. Gear selector levers on the headstock slide smoothly when rotating the chuck by hand to mesh teeth. Do not buy this lathe for heavy production turning of parts over 8 in diameter.

• Add ISO 68 machine oil to the headstock reservoir whenever fluid drops below the sight glass center.
• Wipe down the taper attachment guide ways and apply fresh way oil before cutting tapered shafts.
• Clean foreign debris and chips out of the 5C collet taper seat before inserting collets.

JET Machinery Inclusions Warranty Terms

JET covers this machine tool with a 2-Year Red Assurance warranty against defects in parts, metallurgy, and electricals. The factory packing crate contains the lathe, 5C collet closer, taper attachment, 6 in 3-jaw chuck, 8 in 4-jaw chuck, faceplate, steady rest, follow rest, and service wrenches.