The Sub-Spindle CNC Lathe is a CNC turning machine for half-shafts, pump shafts, spline shafts, and other parts requiring two-end machining.
The main spindle handles the first operation, while the sub-spindle takes over for second-side machining in the same cycle, eliminating separate re-clamping.
Turning Capacity
|
Parameter |
Specification |
|
Main Chuck Size |
6 inch |
|
Sub-Spindle Chuck Size |
5 inch |
|
Max. Machining Length |
350–500 mm |
|
X-Axis Travel |
160 mm |
|
Y-Axis Travel |
±40 mm |
|
Z-Axis Travel |
450 mm |
|
Spindle Motor Power |
11 kW |
|
Positioning Accuracy |
±0.004 mm |
|
Tool Square Size |
20 × 20 mm |
Spindle Performance
Main Spindle
The 6-inch main chuck holds the incoming workpiece for the first machining stage. The spindle is equipped with an 11 kW motor, providing the primary turning drive for the initial operation.
Sub-Spindle
The 5-inch sub-spindle chuck receives the workpiece after the main-spindle operation. It provides the second workholding position required for rear-side machining within the same machine.
The two-spindle arrangement keeps the workpiece transfer and second machining stage inside the CNC process instead of requiring a separate machine setup.
Back-Side Machining
The sub-spindle is used for machining features on the opposite end after the first-side operation is completed.
Typical workpieces include half-shafts, pump shafts, and spline shafts, where the rear end requires additional turning or face-related machining after the initial operation.
Production Cycle
Loading → Main-Spindle Clamping → First-Side Machining → Workpiece Transfer → Sub-Spindle Clamping → Second-Side Machining → Unloading
This workflow reduces intermediate part handling and keeps both machining stages within one CNC process.
Automation Configuration
The machine supports automation integration for production layouts requiring automatic workpiece handling.
The technical configuration can cover:
For an automation project, the part drawing, loading method, machining sequence, and production target should be included in the technical review.
Frequently Asked Questions
Q: Can the machine be evaluated with our existing part?
A: Yes. Submit the part drawing, machining sequence, production volume, and tolerance requirements for technical evaluation before quotation.
Q: Can it be integrated with automatic loading?
A: Yes. The machine supports automation integration, with the loading, transfer, and unloading sequence confirmed during the project review.
Q: Can the sub-spindle configuration be customized?
A: Yes. Special sub-spindle configurations are available for projects with specific transfer or second-side machining requirements.
Q: Can dedicated tooling be supplied?
A: Yes. Dedicated tooling can be included when the standard tooling setup does not cover the required process.
Q: Can the machine be used for high-volume production?
A: Yes. The two-spindle process keeps first-side machining, workpiece transfer, and second-side machining within one production cycle, reducing external handling between operations.
Q: Can the buyer conduct a factory inspection?
A: Yes. A factory inspection can be arranged before shipment to verify the machine configuration and agreed technical requirements.
Q: What should be specified in the purchase contract?
A: Specify the machine configuration, machining scope, accuracy requirements, tooling, automation functions, and acceptance criteria.
Q: What site preparation is required before installation?
A: The buyer should prepare the installation area, machine utilities, and production-line interfaces before delivery. Automated projects also require the loading and unloading interfaces to be confirmed.
Q: How is delivery arranged for export orders?
A: The machine is shipped in treated international-standard wooden cases under the stated FOB trade term.
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