The Dual-Spindle Turning Center transfers the workpiece automatically from the main spindle to the sub-spindle for front- and rear-side machining in one cycle. Its high-rigidity structure and precision-ground ball screws support stable, continuous CNC turning operations.
Technical Specifications
|
Item |
Specification |
|
Main Spindle Bore Diameter |
45–65 mm |
|
Sub-Spindle Travel |
400–700 mm |
|
Maximum Turning Diameter |
280 mm |
|
Rapid Traverse (X/Z) |
30 m/min |
|
Tool Change Time |
0.2 s |
|
Spindle Synchronization Accuracy |
0.001° |
Main Spindle & Sub-Spindle
The main spindle handles the initial machining, while the sub-spindle takes over the workpiece for rear-side operations. Front- and rear-side operations can be completed in the same machining cycle, reducing manual workpiece handling.
Main Spindle
Rigid Design: Spindle bores from 45 mm to 65 mm provide structural rigidity and thermal stability for heavy-duty cutting operations.
Spindle Synchronization: Spindle synchronization accuracy is up to 0.001°, allowing the sub-spindle to match the main spindle during workpiece transfer.
Sub-Spindle
Dynamic Transfer: Sub-spindle travel ranges from 400 mm to 700 mm, allowing it to move into position for workpiece transfer from the main spindle.
Two-Sided Machining: After receiving the workpiece, the sub-spindle completes rear-side turning, facing, grooving, or other secondary operations without removing the part from the machine.
Machine Structure
Rigid Bed Design
High-rigidity casting bed engineered to absorb cutting forces and maintain thermal stability during high-load operations.
Precision Lead Screws
Precision-ground ball screws provide smooth axis movement and repeatable positioning.
Spindle Assembly
The main and sub-spindles are arranged symmetrically to maintain spindle alignment and reduce vibration during machining.
Guide Ways
High-load linear guide ways built to support rapid traverse speeds while maintaining rigidity during heavy metal removal.
Machining Capabilities
|
Capability |
Description |
|
External Turning |
Machining external cylindrical surfaces |
|
Internal Turning |
Machining internal diameters and bores |
|
Facing |
Machining flat end faces |
|
Grooving |
Producing external or internal grooves |
|
Threading |
Machining external and internal threads |
|
Front-Side Machining |
Primary machining on the main spindle |
|
Rear-Side Machining |
Secondary machining on the sub-spindle |
|
Two-Sided Machining |
Combining front- and rear-side operations in one production cycle |
Machining Process
Raw Material Feeding
Bar stock or pre-formed blanks are loaded into the main spindle by an automatic loading system.
Primary Machining
The main spindle holds the workpiece for front-side turning, facing, drilling, and milling with live tooling.
Synchronous Transfer
The sub-spindle approaches the main spindle at matching rotational speeds to receive and secure the part, ensuring smooth handover without surface damage.
Secondary Machining
The sub-spindle then performs parting-off, rear facing, and secondary turning operations.
CNC Control System
Operator Interface
Operator panel for program setup, editing, and machining status monitoring.
Axis Synchronization
Coordinates movement between the main spindle, sub-spindle, and live tooling axes for synchronous transfer and machining.
System Diagnostics
Built-in diagnostics and status tracking to monitor machine conditions, operational alarms, and system events.
Network Integration
Standard communication interfaces allow connection to factory networks and production monitoring systems.
Applications
Automotive Components
Shafts, flanges, hubs, pins, and related turned parts for powertrain and drivetrain applications.
Hydraulic and Pneumatic Components
Valve components, fittings, connectors, sleeves, and bushings requiring tight dimensional control.
Industrial Machinery Parts
Shafts, couplings, pins, sleeves, and general mechanical elements.
Precision Turned Components
Cylindrical workpieces requiring turning, facing, grooving, threading, and complete two-sided machining.
Automation & Options
Automatic loading and unloading systems are available for continuous unattended production.
Robotic Integration
Robotic cells can be configured for part loading, unloading, handling, and secondary operations.
Bar Feeders
Compatible with standard bar feeding systems for continuous, high-volume unmanned machining of raw stock.
Advanced Monitoring
Monitoring functions can track production quantity, cycle time, and machine status.
Quality Control
Component & Material Inspection
Verification of raw castings, guide ways, ball screws, and critical mechanical parts for dimensional and material consistency prior to assembly.
Dynamic Balancing
Main and sub-spindle assemblies are dynamically balanced to reduce vibration during rotation.
Geometry & Alignment Verification
Laser interferometer and indicator tests are used to check axis straightness, parallelism, and spindle alignment.
Operational Testing
The machine undergoes extended test cycles to check thermal behavior, spindle synchronization, and cutting performance before shipment.
Frequently Asked Questions
Q: What is the standard delivery lead time for the machine?
A: Standard models have a lead time of 1 to 5 months, while customized automated units typically require 3 to 8 months depending on specific requirements.
Q: Can the machine be customized to fit specific production requirements?
A: Yes, custom configurations are available, including tailored spindle capacities, specialized workholding solutions, and specific automation integrations to match unique manufacturing needs.
Q: What are the available payment terms and trade conditions?
A: Trade terms are based on FOB, with a payment structure of 50 percent prepayment and the remaining 50 percent balance due prior to shipment.
Q: How is the machine packaged for international shipment?
A: Units are packed in reinforced wooden crates specifically engineered to ensure stability and protection during long-distance ocean freight.
Q: Can the control system connect to our existing factory network?
A: Yes, the CNC system features standard communication interfaces designed for seamless integration with factory networks and production monitoring software.
Q: What warranty and technical support are provided after purchase?
A: We provide comprehensive technical support backed by our engineering team, with specific warranty terms detailed in the formal contract based on the agreed configuration.
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