Twin Spindle Automated CNC Lathe

The Twin Spindle Automated CNC Lathe is engineered for complex turned components requiring machining on both ends within a single, continuous process.

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Product Introduction

The Twin Spindle Automated CNC Lathe is engineered for complex turned components requiring machining on both ends within a single, continuous process.
By integrating a main spindle and a sub-spindle, the machine performs first-stage operations on the main spindle, then automatically transfers the workpiece to the sub-spindle for back-side machining. This seamless handoff eliminates secondary setups, reduces manual re-clamping, and prevents alignment errors.

Technical Specifications

Specification	Standard Configuration Range
Machine Type	Twin Spindle Automated CNC Lathe
Max Turning Diameter / Length	Ø250 mm – Ø400 mm / 300 mm – 600 mm
Main Spindle Speed / Power	4,000 – 6,000 RPM / 11 kW – 15 kW
Sub-Spindle Speed / Power	4,000 – 6,000 RPM / 7.5 kW – 11 kW
Bar Capacity / Spindle Bore	Ø45 mm – Ø65 mm
Workholding Types	Hydraulic Chuck / Pneumatic Chuck / Collet System
Turret Capacity / Live Tooling	12-Station Servo Turret / BMT or VDI Live Tools
Y-Axis / Travel (X/Z)	Standard/Optional
Automation Integration	Bar Feeder / Gantry Loader / Robotic Loader / Parts Catcher
Chip Removal System	Automatic Chain-type Chip Conveyor

Common Industry Applications

Automotive: Shafts, hubs, bushings, sleeves, couplings, and transmission components.
Hydraulics & Pneumatics: Valve bodies, fittings, sleeves, pins, and fluid connectors.
Industrial Machinery: Flanges, couplings, precision pins, and custom stepped shafts.
Fluid Control: Precision cylindrical valve bodies, connectors, and threaded fittings.

Spindle, Chuck, Turret and Tooling Configuration

Main & Sub-Spindle System: Engineered for high thermal stability and synchronized speed control during dynamic workpiece transfer.
Workholding Options: Available with hydraulic or pneumatic chucks, collet chucks, soft/hard jaws, or custom-engineered fixtures to match delicate or heavy-duty gripping requirements.
Index Turret & Live Tooling: High-speed indexing turrets accommodate turning tools, boring bars, and live tooling (cross-drilling, end-face milling, tapping, and slotting) to perform complete secondary operations on one machine.

How the Main Spindle and Sub-Spindle Work

Workpiece Loading: Raw bar stock or individual blanks are loaded into the main spindle via an automated bar feeder, gantry loader, or articulated robot.
Main Spindle Machining: Performs front-end operations, including facing, outer diameter turning, inner diameter boring, drilling, grooving, and threading.
Sub-Spindle Takeover: The sub-spindle synchronizes with the main spindle, advances into position, grips the workpiece securely, and completes the automated handoff.
Opposite-Side Machining: The sub-spindle presents the unmachined end to the tool turret for back-side facing, secondary OD/ID turning, grooving, threading, and finishing.

Part Unloading: The finished component is removed automatically via a parts catcher or robotic end-effector onto an outgoing conveyor.

Single Spindle vs. Twin Spindle CNC Lathe

Process Requirement	Single Spindle CNC Lathe	Twin Spindle Automated CNC Lathe
Two-Sided Machining	Requires manual setup / 2nd machine	Fully automated in one cycle
Concentricity Control	Operator dependent	Consistently tight (±0.008 mm)
Manual Re-clamping	Required between operations	Eliminated via automatic transfer
Production Efficiency	Standard turnaround	Up to 40% faster cycle time
Automation Integration	Standard options	Full turnkey lights-out integration

Machine Configuration and Customization

We offer flexible tailoring to integrate seamless machinery into your existing workshop floor:
Spindle & Power Options: Custom spindle bores and torque curves based on material removal rates.
Turret Configurations: Static-only, live tooling, or twin turrets for simultaneous cutting.
CNC Control Systems: Pre-configured to standard shop interfaces (FANUC, Siemens, Mitsubishi, Syntec).
Automation Systems: Tailored interface protocols for robotic automation, probing systems, and tool breakage detectors.

FAQ

Q: What components are best suited for a twin-spindle CNC lathe?

A: Components requiring machining on both ends (e.g., shafts, sleeves, bushings, hydraulic fittings, and flanges) benefit most from twin-spindle machining.

Q: How does automatic spindle transfer work?

A: The sub-spindle advances and synchronizes rotation speed with the main spindle, securely clamps the workpiece, and retracts to perform back-side operations.

Q: Can live tooling and Y-axis capability be added?

A: Yes. Live tooling and Y-axis options allow off-center drilling, keyway milling, and tapping without moving the part to a separate machining center.

Q: What automation options are available for raw billets or castings?

A: Gantry loading systems or articulated 6-axis robots can be integrated for non-bar stock components.

Q: What details are required to receive an accurate engineering proposal?

A: Provide your 2D/3D part drawings, workpiece material specifications, annual production quantities, and specific tolerance requirements.

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