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Machining long drive shafts and oversized industrial rollers requires structural rigidity that standard machine tools cannot deliver. The Extended-Bed Conventional Lathe is built with an ultra-long heavy-duty bed, giving precision machine shops and maintenance facilities the longitudinal travel needed for extra-length workpieces. By combining a classic operator-friendly manual design with reinforced guide paths, this machine ensures high torque, easy control, and stable alignment across long cutting distances without complex CNC programming.


Max. Workpiece Length	1,500 – 12,000 mm
Max. Turning Length	1,300 – 11,800 mm
	630 – 1,640 mm
	350 – 1,250 mm
	100 / 130 mm
	3.15 – 1,000 r/min

Measure the full length and diameter of your raw stock. Select a turning length that exceeds your actual machining stroke to allow carriage clearance and tailstock positioning.

Choose a spindle bore diameter that matches your bar stock for pass-through operations. Heavy parts require robust headstock bearings and strong bedways to carry static loads.

Induction-Hardened Bedways: Cast-iron bed structure ground to strict straightness tolerances, resisting deflection and wearing over long travel distances.

Wide-range metric and inch thread cutting without frequent manual gear changes, speeding up shop floor workflows.

Heavy-Duty Carriage System: Hand-scraped mating surfaces provide smooth feed control, minimizing chatter during deep roughing cuts.

Main Applications of Extended-Bed Conventional Lathe

Turning long power-transmission shafts, steel mill rolls, and large hydraulic piston rods.

Refurbishing worn rotational parts for mining, marine propulsion, and power plant infrastructure.

Versatile job-shop setups requiring quick manual adjustments for low-volume or single-piece orders.

3-Jaw & 4-Jaw Chucks: Rapid self-centering chucks for concentric stock, plus independent 4-jaw chucks for asymmetric or irregular forgings.

Stationary ring supports mounted on the bedways to prevent center-sag on long workpieces.

Traveling supports fixed to the carriage that absorb cutting forces right next to the turning tool.

Long-bed turning accuracy depends heavily on alignment stability. Each machine undergoes static alignment testing, tailstock centerline checks, and lead-screw pitch tolerance verifications before shipment. Correct floor leveling, proper foundation preparation, and steady-rest adjustments are crucial to maintaining tolerance over extended bed lengths.

Pre-Quotation Checklist

Outer diameter, maximum swing height, turned length, and overall weight.

External turning, facing, taper cutting, internal boring, or special thread profiles.

Available floor space, crane lifting capacity, and local power supply voltage.

Q: What is an extended-bed conventional lathe?

A: It is a manual horizontal turning lathe designed with an lengthened cast-iron bed to support and machine extra-long cylindrical workpieces beyond standard lengths.

A: Steady rests are necessary when turning long or slender components to prevent workpiece sagging, vibration, and dimensional tapering during cutting.

A: Yes, selecting a 100 mm or 130 mm spindle bore allows long bar stock to pass directly through the spindle headstock, saving overall bed length.

A: Provide your maximum workpiece diameter, turning length, total weight, material type, and required machining operations to receive a tailored configuration.

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