C61125 Large-Diameter Conventional Lathe

C61125 Large-Diameter Conventional Lathe

The C61125 Large-Diameter Conventional Lathe is a heavy-duty horizontal turning lathe engineered specifically for processing oversized, long, and high-tonnage metal components.
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Description
Technical Parameters
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The C61125 Large-Diameter Conventional Lathe is a heavy-duty horizontal turning lathe engineered specifically for processing oversized, long, and high-tonnage metal components. Built with a 1,250 mm swing over bed and a massive 16-ton workpiece load capacity, this machine delivers stable cutting power for external turning, internal boring, end-facing, and multi-pitch thread cutting. It provides an economical, high-rigidity solution for industrial machine shops handling heavy rotary parts without the complex overhead of CNC setups.

 

Technical Specifications

 

Parameter

Specification

Max. Swing Over Bed

1,250 mm

Max. Swing Over Carriage

900 mm

Max. Workpiece Length

3,000 – 12,000 mm

Max. Turning Length

2,800 – 11,800 mm

Bed Guideway Width

1,100 mm

Max. Workpiece Weight

16 Tons

Spindle Bore / Spindle Nose

100 mm / A2-15

Spindle Speeds (Forward)

3.15 – 315 rpm (21 steps)

Spindle Speeds (Reverse)

3.5 – 291 rpm (12 steps)

Main Motor Power

30 kW

Tailstock Quill Dia. / Travel

260 mm / 300 mm

Standard Steady Rest Support Range

240 – 700 mm

 

Key Performance of C61125 Large-Diameter Conventional Lathe


Heavy-Duty Cast Iron Structure
The 1,100 mm extra-wide bed casting is manufactured from high-tensile resin sand cast iron, stress-relieved to prevent deformation under 16-ton static loads.

High-Torque Gearbox & Spindle
Driven by a 30 kW main motor, the hardened spindle setup offers 21 mechanical speed steps, delivering heavy cutting torque at low speeds for alloy steels.

Multi-Profile Threading Capability
Integrates direct gear selections to cut Metric, Inch, Module, and Diametral Pitch threads without modifying internal drive linkages.

Long Shaft Radial Support
Outfitted with a 260 mm tailstock quill and heavy-duty 240–700 mm steady rest to eliminate shaft deflection during extended turning runs.

 

Primary Industrial Applications

 

Power Generation Axles: Precision turning and facing of large turbine rotors, generator drive shafts, and marine propulsion shafts.

Steel Mill & Mining Rollers: Resurfacing and initial roughing of heavy forged steel rollers, crusher shafts, and sleeve bearings.

Large Flanges & Valve Bodies: Deep boring and facing of high-pressure pipe flanges, oilfield fittings, and industrial pump casings.

 

Quality Control & Manufacturing Standards

 

Every machine undergoes rigorous factory testing before shipment to guarantee job-site readiness:

 

Guideway Hardening: Bedways are induction hardened and precision ground to achieve long-term wear resistance.

Geometric Precision Inspection: Alignment and runout are tested using laser interferometers according to ISO machine tool standards.

Load Running Test: The spindle box and drive mechanisms undergo a continuous 24-hour full-speed trial run to ensure quiet operation and stable temperature control under load.

 

Customization & Export Logistics

 

To ensure seamless installation in overseas facilities, custom options and professional packaging are integrated:

 

Tailored Workholding: Optional special-diameter 4-jaw chucks, extra steady rests, or digital readout (DRO) systems can be factory-fitted.

Global Electrical Compatibility: Motors and control panels are wired according to destination voltage requirements (e.g., 380V/415V/480V, 50/60Hz).

Seaworthy Packaging: Rust-inhibitor coated, wrapped in waterproof vacuum film, and secured in reinforced wooden cases for ocean transport.

 

FAQ

 

Q: What is the maximum load capacity of the C61125 lathe?

A: The machine handles workpieces up to 16 metric tons between centers or when properly supported with steady rests.

Q: What bed lengths are available for long workpiece turning?

A: Overall workpiece capacity spans from 3,000 mm up to 12,000 mm, offering maximum turning lengths between 2,800 mm and 11,800 mm.

Q: Can this lathe machine both metric and inch threads?

A: Yes, the internal feed gear system directly cuts Metric, Inch, Module, and Diametral-Pitch threads.

Q: What basic information is needed to obtain an accurate technical proposal?

A: Provide your part drawing or specify the maximum part outer diameter, total length, material grade, workpiece weight, and required machining operations.

Q: What standard accessories are included with the equipment?

A: The standard package includes a K78-1250 four-jaw chuck, a 240–700 mm steady rest, a dead center, lighting, cooling systems, anchor bolts, and maintenance tools.

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