Specifications:

The GMC GT 26120 is a high-capacity, heavy-duty engine lathe designed for machining long or large-diameter metal workpieces with exceptional accuracy and torque. With a 26” swing over bed and 120” center distance, this lathe is ideal for industrial applications that require turning, facing, threading, boring, tapering, and parting of metal bars, shafts, rollers, and cylindrical components.

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✅ What It Does

The GT-26120 performs a full range of manual lathe operations on various materials—primarily steel, aluminum, brass, stainless, and cast iron. It is used to:

• Turn (reduce diameter) of large parts

• Face components to create flat ends

• Cut threads (metric/inch)

• Bore holes concentrically into existing holes

• Taper-turn parts using the compound rest or tailstock offset

• Part off material to desired lengths

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 ⚙️   Key Specifications & Capabilities

Specification Detail

Model GT-26120

Swing Over Bed 26″

Swing Over Cross Slide ~15″–18″ (varies by version)

Swing in Gap Up to 36″ (for large flanges/disks)

Distance Between Centers 120″

Spindle Bore 4.125″ (105 mm) — ideal for heavy bar stock

Spindle Speeds 12 speeds: 25 – 1,800 RPM

Spindle Nose D1 8 Camlock

Bed Width 15″

Feed Range 0.0015 – 0.0915 IPR (longitudinal & cross feeds)

Threading Capability Inch: 4–56 TPI; Metric: 0.4 – 7 mm

Tailstock Quill Travel ~6″, MT #5 taper

Motor 10 HP, 220V / 3PH

Weight ~9,000–10,000 lbs (approximate)

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 🔧  Digital Readout System (SINO DRO Model SD S6 2V)

The included SINO SD S6 2V is a professional-grade 2-axis digital readout (DRO) system that enhances operator precision and reduces errors in length and diameter measurements.

Features:

• Real-time position tracking (X and Z axes)

• Inch/metric switchable

• Preset, pitch circle, and radius/diameter functions

• High-resolution display and zero reset

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 💡 Core Functions

Function Description

Turning Reducing part diameter via longitudinal movement

Facing Creating flat surfaces perpendicular to the part axis

Thread Cutting Internal/external threading (inch & metric)

Taper Turning With compound rest or tailstock offset

Boring Internal diameter enlargement

Parting Cutting off sections with precision

Grooving Cutting recesses or grooves

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 🏭  Machine Construction & Features

• Induction-hardened and precision-ground bedways

• Removable gap bed section for large-diameter faceplate work

• Hardened gears and precision spindle bearings

• Massive cast-iron base for vibration damping

• Coolant system, work light, 4-way tool post, and chuck guards

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 📌  Applications

• Heavy manufacturing & metal fabrication

• Shaft and roller turning for industrial equipment

• Maintenance and repair of large components

• Oil & gas industry (pipes, couplers, flanges)

• Prototyping and production runs for cylindrical parts

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✅ Summary Description

The GMC GT-26120 is a robust, heavy-duty precision gap bed lathe designed for machining large and long metal parts with high accuracy. With its 26” swing, 120” centers, 10 HP motor, and SINO digital readout, it provides powerful turning capacity, versatile threading, and tight tolerance control — making it ideal for toolrooms, maintenance shops, and production facilities handling industrial-sized workpieces.