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The Shen Jey SJ-1540G is a precision manual engine lathe designed for turning, facing, threading, and boring operations on cylindrical parts. Manufactured by Shen Jey Machinery Co., Ltd., this model is known for its solid construction, smooth operation, and versatility in both production and toolroom environments.
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✅ What It Does
The SJ-1540G is used to:
• Turn and shape round parts (shafts, rods, bushings, etc.)
• Cut internal and external threads
• Face the ends of cylindrical parts
• Bore holes through parts using the tailstock or boring bars
• Form tapers, grooves, and chamfers
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⚙️ Key Specifications
Specification Detail
Swing Over Bed 15″
Swing Over Cross Slide ~9″ (approx., varies slightly)
Distance Between Centers 40″
Spindle Bore 1.5″ to 2.0″ (varies by model year)
Spindle Nose D1-4 Camlock
Spindle Speeds 12 – 16 speeds (range: ~70–2,000 RPM)
Thread Cutting Inch & metric threading capabilities
Cross Slide Travel ~8″ – 9″
Tailstock Quill Travel ~4″
Motor Power 2 – 3 HP (usually 220V or 440V, 3-phase)
Machine Weight ~1,800 – 2,200 lbs
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🔧 Key Features & Capabilities
• Hardened and ground bedways for durability and precision
• Removable gap bed allows larger diameter parts near the chuck
• D1-4 spindle nose for quick chuck changes
• Threading gearbox for inch and metric thread cutting
• Power cross feed and longitudinal feed
• Tailstock with adjustable offset for taper turning
• High-precision bearings for smooth spindle rotation
• Oil-bath lubrication for gears and ways
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💡 Typical Applications
• Machining shafts, pins, bushings, and sleeves
• Cutting threads for fasteners or pipe fittings
• Repairing worn-out parts or components
• Prototyping cylindrical parts
• General-purpose turning in maintenance shops or R&D labs
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🏭 Used In Industries Like
• Job shops and machine shops
• Maintenance departments
• Automotive and motorsports
• Educational and training programs
• Oil & gas and light manufacturing
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📌 Summary Description
The Shen Jey SJ-1540G is a versatile 15″ x 40″ precision engine lathe designed for manual turning, threading, and boring operations. With a gap-bed design, hardened bedways, and reliable spindle drive, it's ideal for both production and repair applications involving cylindrical metal parts. A great fit for job shops, educational programs, or any shop needing a solid, capable lathe.