B0385-III Swiss Type CNC Lathe for Ø8–Ø38mm Bar Stock Machining
The B0385-III Swiss type CNC lathe is designed for manufacturers that need higher bar capacity, stronger spindle power, and stable machining performance for medium-to-large precision turned parts. With a working bar stock diameter range of Ø8–Ø38mm and a maximum back spindle chucking diameter of Ø38mm, this machine is suitable for components that require more machining strength than small-diameter automatic lathes can provide.
For B2B precision machining suppliers, larger bar stock parts often involve more complex production requirements. A single workpiece may require front-side turning, back-side drilling, tapping, slotting, deep drilling, groove machining, and multi-surface finishing. If these processes are handled across several machines, production time increases, labor cost rises, and repeated clamping may reduce dimensional consistency.
The B0385-III solves this challenge by integrating multiple machining functions into one compact CNC precision automatic lathe platform. As a sliding headstock CNC lathe, it supports variable production for complex-shaped workpieces while maintaining the efficiency of automatic bar-fed machining.
Key Features
Ø8–Ø38mm Bar Stock Capacity
The B0385-III supports Ø8–Ø38mm working bar stock diameter, making it suitable for larger shafts, sleeves, fittings, bushings, valve components, hydraulic connectors, precision fasteners, and custom turned parts.
This larger capacity makes the machine a practical option for manufacturers that need to process stronger or larger precision components while still using a Swiss-type machining structure.
Ø38mm Back Spindle Chucking Capacity
The maximum back spindle chucking diameter reaches Ø38mm. This allows the machine to perform more stable secondary machining after front-side processing, including back drilling, back tapping, and finishing operations.
For buyers producing parts that require complete machining on both ends, this helps reduce manual transfer and improves production consistency.
Strong Main Spindle Power
The main spindle motor power reaches 7.5/11kW, giving the B0385-III stronger machining capability than smaller models. This is especially useful for Ø38mm-class bar stock parts, where cutting resistance is higher and stable power output is important.
The back spindle uses 3.7/5.5kW motor power, supporting reliable secondary machining for complex workpieces.
5-Axis Controlled Structure
The B0385-III uses a 5-axis controlled structure. This allows more flexible tool movement and supports multi-process machining within one cycle.
For manufacturers producing complex-shaped workpieces, 5-axis control helps improve process integration, reduce secondary setups, and support better dimensional consistency.
31-Tool Storage Capacity
The machine provides a total tool storage capacity of 31 tools. This allows operators to arrange turning tools, drilling tools, tapping tools, slotting tools, front tool post tools, rear tool post tools, and back tool post options according to different part requirements.
For high-mix custom CNC turning, this tool capacity supports flexible process planning and reduces tool arrangement limitations.
Drilling, Tapping, Deep Drilling, and Slotting Capability
The B0385-III supports multiple machining operations:
- Main spindle drilling up to Ø13mm
- Main spindle tapping up to M12
- Back spindle drilling up to Ø12mm
- Back spindle tapping up to M12
- Optional spindle deep drilling up to Ø10mm
- Tool spindle drilling up to Ø10mm
- Tool spindle tapping up to M8
- Front tool post slotting cutter diameter up to Ø45mm
These capabilities make the machine suitable for parts requiring holes, threads, grooves, side features, and back-side processing.
Optional Conductive Sleeve for High-Precision Processing
The document notes that the optional conductive sleeve enables high-speed and high-precision processing, stable operation, and improved shape accuracy, dimensional accuracy, and surface finish.
This is especially valuable for components used in automotive, hydraulic, medical, electronics, and precision instrument applications where machining quality directly affects assembly reliability.
Benefits for B2B Manufacturing Buyers
Larger Machining Capacity for Ø38mm-Class Parts
The B0385-III provides stronger machining capacity than smaller Swiss-type machines. With Ø38mm bar stock capability and Ø43.6mm main spindle hole diameter, it is suitable for manufacturers processing larger precision components.
For B2B buyers, this means one machine can cover a wider range of part sizes and reduce the need for multiple machine models.
More Complete Machining in One Setup
As a CNC precision automatic lathe, the B0385-III can combine turning, drilling, tapping, slotting, deep drilling, and back-side machining. This helps reduce secondary clamping and manual transfer.
Fewer setups can improve part consistency, shorten lead time, and reduce the risk of accumulated positioning error.
Stronger Power for Industrial Parts
The 7.5/11kW main spindle motor gives the machine stronger cutting support for larger bar stock and tougher workpieces. This is useful for machining hydraulic fittings, steel shafts, industrial fasteners, valve parts, and precision hardware.
Better Flexibility for Complex Workpieces
The B0385-III is designed for variable production corresponding to complex-shaped workpieces. With 5-axis control, 31 tools, optional guide sleeve configurations, and multiple tool post machining options, it supports high-mix production needs.
This makes it suitable for custom CNC machining suppliers that handle different drawings, materials, batch sizes, and processing requirements.
Compact Structure for Production Line Planning
Although the machine supports Ø38mm bar stock, its footprint remains practical for production workshops. With a machine size of 2,819×1,795×2,050mm, it can be arranged efficiently in CNC turning production lines.
Technical Specifications
| Item | Specification |
|---|---|
| Product Model | B0385-III |
| Machine Type | Swiss Type CNC Lathe / CNC Precision Automatic Lathe |
| Working Bar Stock Diameter | Ø8–Ø38 mm |
| Max. Back Spindle Chucking Diameter | Ø38 mm |
| Max. Machining Length - Electrical Direct Driving Guide Bush | 330 mm |
| Max. Machining Length - Guide Bushless | 70 mm |
| Main Spindle Hole Diameter | Ø43.6 mm |
| Back Spindle Hole Diameter | Ø39 mm |
| Max. Main Spindle Drilling Diameter | Ø13 mm |
| Max. Main Spindle Tapping Diameter | M12 |
| Max. Back Spindle Drilling Diameter | Ø12 mm |
| Max. Back Spindle Tapping Diameter | M12 |
| Max. Spindle Deep Drilling Diameter | Ø10 mm optional |
| Max. Tool Spindle Drilling Diameter | Ø10 mm, front / rear / back tool post |
| Max. Tool Spindle Tapping Diameter | M8, front / rear / back tool post |
| Max. Tool Spindle Slotting Cutter Diameter | Ø45 mm, front tool post |
| Main Spindle Speed | 200–6,000 r/min |
| Back Spindle Speed | 200–7,000 r/min |
| Rotary Guide Bushing Speed | 200–6,000 r/min |
| Tool Spindle Speed | 200–6,000 r/min |
| Total Tool Storage Capacity | 31 |
| Tool Size | 16×16 mm, 20×20 mm for cut-off only |
| Rapid Traverse Rate | 32 m/min, X1/Y1/Z1: 24 m/min |
| Controlled Linear Axes | 5-axis |
| Main Spindle Motor | 7.5 / 11 kW |
| Back Spindle Motor | 3.7 / 5.5 kW |
| Axis Motor | Y2: 0.5kW; X1/Y1/Z1/X2/Z2: 0.75kW |
| Cross Drill Motor | Front tool post: 1.0kW; rear/back tool post: 1.4kW optional |
| Coolant Pump | 0.4 kW |
| Lubricating Oil Pump | 3 W |
| Net Weight | 4,950 kg |
| Power Requirement | 22.4 kVA |
| Compressed Air Requirement | 0.4 MPa or above |
| Air Discharge Rate | 100 NL/min |
| Coolant Tank Capacity | 190 L |
| Machine Size | 2,819 × 1,795 × 2,050 mm |
Application Scenarios
Automotive Precision Components
The B0385-III is suitable for automotive shafts, sleeves, valve parts, fittings, bushings, fasteners, and structural turned components. Its Ø38mm bar capacity and strong main spindle power support machining of larger automotive precision parts.
Hydraulic and Pneumatic Fittings
Hydraulic and pneumatic fittings often require stronger cutting capability, stable thread machining, internal holes, and back-side processing. This Swiss type CNC lathe supports drilling, tapping, slotting, and secondary machining for these demanding parts.
Industrial Hardware and Fasteners
For larger screws, sleeves, pins, threaded components, bushings, and custom hardware parts, the B0385-III provides the bar capacity and tool flexibility needed for batch production.
Medical and Instrument Components
Some medical and instrument parts require high dimensional accuracy, smooth surface finish, and stable machining quality. The optional conductive sleeve helps improve shape accuracy and surface finish for precision applications.
Custom CNC Turning Services
For machining service providers, the B0385-III sliding headstock CNC lathe can process different customer drawings, larger bar stock sizes, and complex-shaped components. It is suitable for high-mix and batch production environments.
Optional Machining Configurations
Electrical Direct Driving Guide Bush
The electrical direct driving guide bush supports machining lengths up to 330mm. It is suitable for longer workpieces that require stronger material support during high-precision machining.
Guide Bushless Machining
The guide bushless configuration supports machining lengths up to 70mm. It is suitable for shorter parts where guide sleeve support is not required.
Rear Tool Post and Back Tool Post Options
Rear and back tool post configurations expand tool spindle drilling and tapping capability. These options help manufacturers complete more part features in one machining cycle.
Deep Drilling Option
The optional deep drilling capability supports spindle deep drilling up to Ø10mm, useful for parts requiring internal channels, deeper holes, and functional fluid passages.
Why Choose the B0385-III Swiss Type CNC Lathe?
Larger Ø38mm Bar Capacity
The B0385-III is suitable for manufacturers that need to machine larger precision components while keeping the efficiency of Swiss-type automatic turning.
Stronger Main Spindle Power
With a 7.5/11kW main spindle motor, the machine provides stronger cutting support for medium-to-large bar stock parts.
Practical for Complex-Shaped Workpieces
The machine supports variable production of complex-shaped workpieces, with turning, drilling, tapping, slotting, deep drilling, and back-side machining capability in one platform.
Suitable for B2B Production Lines
With 5-axis control, 31-tool capacity, Ø38mm bar machining range, and compact machine structure, the B0385-III is suitable for B2B manufacturers serving automotive, hydraulic, industrial hardware, medical, instrumentation, and custom CNC turning markets.
FAQ
Q1: What is the B0385-III mainly used for?
The B0385-III is mainly used for Ø8–Ø38mm precision bar stock parts, including shafts, sleeves, bushings, hydraulic fittings, automotive parts, fasteners, valve parts, medical components, and custom CNC turned parts.
Q2: Is the B0385-III a Swiss type CNC lathe?
Yes. The B0385-III is a Swiss type CNC lathe with sliding headstock machining capability, optional guide sleeve configurations, and multi-process automatic turning functions.
Q3: What is the maximum bar stock diameter?
The working bar stock diameter range is Ø8–Ø38mm, and the maximum back spindle chucking diameter is Ø38mm.
Q4: What is the maximum machining length?
The maximum machining length is 330mm with the electrical direct driving guide bush. Guide bushless machining supports up to 70mm.
Q5: How many tools can the machine hold?
The B0385-III supports 31 tools, allowing flexible tool arrangement for turning, drilling, tapping, slotting, and back-side machining.
Q6: Can this machine perform deep drilling?
Yes. The machine supports optional spindle deep drilling up to Ø10mm.
Q7: What makes this model different from smaller Swiss-type CNC lathes?
The B0385-III offers Ø38mm bar capacity, Ø43.6mm main spindle hole diameter, stronger 7.5/11kW main spindle power, and a heavier 4,950kg machine structure, making it better suited for larger precision turned components.
