B0325-III Swiss Type CNC Lathe for Ø8–Ø26mm Precision Bar Stock
The B0325-III Swiss type CNC lathe is designed for manufacturers that need efficient machining of medium-diameter precision components from bar stock. With a working bar stock diameter range of Ø8–Ø26mm and a maximum back spindle chucking diameter of Ø32mm, this machine is suitable for precision parts that require stable clamping, accurate turning, drilling, tapping, slotting, and secondary machining.
For B2B machining suppliers, Ø26mm-class components often require more than basic turning. A typical part may need front-side machining, back-side drilling, internal threading, deep-hole processing, side-feature machining, or slot cutting. If these operations are split across multiple machines, the production process becomes slower and the risk of accumulated positioning error increases. The B0325-III helps reduce this problem by integrating multiple machining functions into one compact CNC precision automatic lathe platform.
As a sliding headstock CNC lathe, the B0325-III is suitable for complex-shaped workpieces and variable production. With optional guide sleeve configurations, it supports high-speed and high-precision processing, helping improve shape accuracy, dimensional accuracy, and surface finish for demanding small and medium precision parts.
Key Features
Ø8–Ø26mm Bar Stock Machining Capacity
The B0325-III supports a working bar stock diameter of Ø8–Ø26mm. This range makes it suitable for shafts, sleeves, bushings, fittings, hydraulic parts, connectors, fasteners, and custom precision turned components.
For manufacturers that need more capacity than smaller Swiss-type machines, the B0325-III provides a practical solution while maintaining the efficiency of automatic bar-fed production.
Ø32mm Back Spindle Chucking Capacity
The machine supports a maximum back spindle chucking diameter of Ø32mm. This gives the B0325-III stronger secondary machining flexibility, especially for parts that require back-side drilling, tapping, or finishing after front-side machining.
This feature is useful for machining components that need completed processing on both ends without excessive manual handling.
Flexible Machining Length Options
The B0325-III supports multiple machining length configurations:
- 320mm with electrical direct driving guide bush
- 90mm with rotary guide bushing
- 80mm with guide bushless configuration
This allows buyers to select the proper configuration based on part length, material stability, tolerance requirements, and production efficiency.
5-Axis Controlled Structure
The B0325-III uses a 5-axis controlled structure, making it suitable for complex precision workpieces that need more tool movement flexibility than basic automatic lathes.
For B2B buyers, 5-axis control helps reduce secondary operations, improve machining consistency, and support more complete part processing in one production cycle.
High-Speed Main and Back Spindles
The main spindle and back spindle both support 200–8,000 r/min operation. The main spindle rated speed is 6,000 r/min, while the back spindle rated speed is 7,000 r/min. This supports efficient turning, drilling, tapping, and finishing for Ø26mm-class bar stock parts.
The main spindle and back spindle motors are both rated at 3.7/5.5kW, giving the machine stable power support for medium-diameter precision machining.
32-Tool Storage Capacity
The B0325-III provides a total tool storage capacity of 32 tools. This allows manufacturers to arrange turning tools, drilling tools, tapping tools, slotting tools, front tool post tools, rear tool post tools, and back tool post options for complex machining programs.
For high-mix custom CNC turning, more tool capacity means better flexibility and fewer limitations during process planning.
Drilling, Tapping, Deep Drilling, and Slotting Capability
The B0325-III supports main spindle drilling up to Ø14mm and tapping up to M14. The back spindle supports drilling up to Ø13mm and tapping up to M12. It also supports spindle deep drilling up to Ø10mm.
For tool spindle machining, the machine supports front tool post drilling up to Ø8mm, rear/back tool post drilling up to Ø10mm, front tool post tapping up to M6, and rear/back tool post tapping up to M8. The maximum tool spindle slotting cutter diameter reaches Ø45mm on the front tool post.
Benefits for B2B Manufacturing Buyers
More Complete Machining in One Setup
The B0325-III can integrate turning, drilling, tapping, deep drilling, slotting, and back-side machining in one machine. This reduces manual transfer between machines and helps improve part consistency.
For precision machining suppliers, fewer setups can help shorten lead time, reduce labor dependence, and improve delivery stability.
Better Accuracy for Complex-Shaped Workpieces
The optional guide sleeve configuration supports high-speed and high-precision processing. It helps improve shape accuracy, dimensional accuracy, and surface finish, which is important for automotive, medical, hydraulic, electronics, and instrumentation components.
As a CNC precision automatic lathe, the B0325-III is suitable for parts where small dimensional errors can affect final assembly performance.
Suitable for High-Mix and Batch Production
The machine’s 32-tool capacity, 5-axis control, flexible guide bushing options, and multiple machining functions make it suitable for both repeated batch orders and high-mix custom CNC turning.
This is valuable for suppliers serving different industries with changing drawings, materials, part lengths, and machining requirements.
Stronger Capacity Than Smaller Swiss-Type Models
Compared with smaller models designed for Ø12mm or Ø20mm parts, the B0325-III supports Ø26mm bar stock and Ø32mm back spindle chucking. This gives manufacturers more flexibility for larger precision turned parts while keeping the advantages of a compact Swiss type CNC lathe.
Compact Industrial Footprint
With a machine size of 2,630 × 1,695 × 1,970mm and a net weight of 3,700kg, the B0325-III provides strong machining capability without requiring excessive workshop space. It is suitable for production lines that need better capacity density.
Technical Specifications
| Item | Specification |
|---|---|
| Product Model | B0325-III |
| Machine Type | Swiss Type CNC Lathe / CNC Precision Automatic Lathe |
| Working Bar Stock Diameter | Ø8–Ø26 mm |
| Max. Back Spindle Chucking Diameter | Ø32 mm |
| Max. Machining Length - Electrical Direct Driving Guide Bush | 320 mm |
| Max. Machining Length - Rotary Guide Bushing | 90 mm |
| Max. Machining Length - Guide Bushless | 80 mm |
| Main Spindle Hole Diameter | Ø39.6 mm |
| Back Spindle Hole Diameter | Ø32.5 mm |
| Max. Main Spindle Drilling Diameter | Ø14 mm |
| Max. Main Spindle Tapping Diameter | M14 |
| Max. Back Spindle Drilling Diameter | Ø13 mm |
| Max. Back Spindle Tapping Diameter | M12 |
| Max. Spindle Deep Drilling Diameter | Ø10 mm |
| Max. Tool Spindle Drilling Diameter | Ø8 mm front tool post / Ø10 mm rear or back tool post |
| Max. Tool Spindle Tapping Diameter | M6 front tool post / M8 rear or back tool post |
| Max. Tool Spindle Slotting Cutter Diameter | Ø45 mm front tool post |
| Main Spindle Speed | 200–8,000 r/min |
| Back Spindle Speed | 200–8,000 r/min |
| Rotary Guide Bushing Speed | 200–8,000 r/min |
| Tool Spindle Speed | 200–6,000 r/min |
| Total Tool Storage Capacity | 32 |
| Tool Size | 16 × 16 mm |
| Rapid Traverse Rate | 35 m/min, X1/Y1: 24 m/min |
| Controlled Linear Axes | 5-axis |
| Main Spindle Motor | 3.7 / 5.5 kW |
| Back Spindle Motor | 3.7 / 5.5 kW |
| Axis Motor | X1/Y2: 0.5 kW; Y1/Z1/X2/Z2: 0.75 kW |
| Cross Drill Motor | Front tool post: 1.0 kW; rear tool post: 1.4 kW optional; back tool post: 1.4 kW optional |
| Coolant Pump | 0.4 kW |
| Lubricating Oil Pump | 3 W |
| Net Weight | 3,700 kg |
| Power Requirement | 16.8 kVA |
| Compressed Air Requirement | 0.4 MPa or above |
| Air Discharge Rate | 100 NL/min |
| Coolant Tank Capacity | 180 L |
| Machine Size | 2,630 × 1,695 × 1,970 mm |
Application Scenarios
Automotive Precision Components
The B0325-III is suitable for automotive shafts, valve components, sleeves, fittings, bushings, fasteners, and precision metal parts. Its Ø26mm bar capacity and Ø32mm back spindle chucking capability support stable production for medium-diameter automotive components.
Hydraulic and Pneumatic Fittings
Hydraulic and pneumatic fittings often require drilling, tapping, internal hole processing, stable thread quality, and strong dimensional consistency. The B0325-III provides main and back spindle machining capability for these applications.
Medical and Instrument Parts
Medical and instrument components require clean machining, accurate dimensions, and stable surface finish. This sliding headstock CNC lathe supports precision bar stock production for small and medium parts used in medical devices and instruments.
Electronic Connectors and Sleeves
For connector sleeves, sensor housings, terminals, and contact components, the B0325-III offers efficient automatic machining and flexible tool arrangements.
Custom CNC Turning Services
For CNC machining service providers, the B0325-III CNC precision automatic lathe can handle different drawings, medium-diameter bar stock, and complex-shaped workpieces with higher process flexibility.
Optional Machining Configurations
Electrical Direct Driving Guide Bush
The electrical direct driving guide bush supports machining lengths up to 320mm. It is suitable for longer parts that require better material support during high-precision machining.
Rotary Guide Bushing
The rotary guide bushing supports machining lengths up to 90mm. It can be selected for parts requiring guide support during stable bar stock machining.
Guide Bushless Machining
The guide bushless configuration supports machining lengths up to 80mm. It is suitable for shorter components where guide bushing support is less critical.
Rear Tool Post and Back Tool Post Options
Rear and back tool post configurations expand drilling and tapping capability. These options help factories process more complex workpiece features in one cycle.
Why Choose the B0325-III Swiss Type CNC Lathe?
Larger Spindle Hole for Better Machining Flexibility
The B0325-III uses a Ø39.6mm main spindle hole diameter, giving it stronger flexibility for medium-diameter bar stock production compared with smaller spindle structures.
Balanced Capacity and Precision
With Ø8–Ø26mm bar stock capacity, 5-axis control, 32 tools, and multiple guide bushing options, the machine provides a practical balance between capacity, accuracy, and production efficiency.
Suitable for Complex-Shaped Workpieces
The B0325-III is designed for variable production of complex-shaped workpieces. It supports turning, drilling, tapping, deep drilling, slotting, and secondary machining in one machine platform.
Practical for B2B Production Lines
For manufacturers serving automotive, medical, hydraulic, electronics, industrial hardware, and custom CNC turning markets, this Swiss type CNC lathe provides a compact but capable production solution.
FAQ
Q1: What is the B0325-III mainly used for?
The B0325-III is mainly used for Ø8–Ø26mm precision bar stock parts, including shafts, fittings, sleeves, bushings, connectors, hydraulic parts, automotive parts, medical components, and custom CNC turned components.
Q2: Is the B0325-III a Swiss type CNC lathe?
Yes. The B0325-III is a Swiss type CNC lathe with sliding headstock machining capability and optional guide bushing configurations for precision bar stock processing.
Q3: What is the maximum machining length?
The maximum machining length is 320mm with the electrical direct driving guide bush. Rotary guide bushing supports 90mm, and guide bushless machining supports 80mm.
Q4: What is the bar stock capacity?
The working bar stock diameter range is Ø8–Ø26mm, and the maximum back spindle chucking diameter is Ø32mm.
Q5: How many tools can the machine hold?
The B0325-III supports 32 tools, making it suitable for parts requiring multiple machining processes.
Q6: Can this machine perform deep drilling and slotting?
Yes. The machine supports spindle deep drilling up to Ø10mm and tool spindle slotting cutter diameter up to Ø45mm on the front tool post.
Q7: What makes the B0325-III suitable for B2B production?
Its Ø26mm bar capacity, Ø32mm back spindle chucking, 5-axis control, 32-tool capacity, guide bushing options, and compact footprint make it suitable for batch production and high-mix custom CNC turning.
