Acclaimed for its excellent cost to performance ratio, this next generation A20 has evolved as a 5-axis machine (plus C1 & C2 as MCC standard) for ∅ 20 mm applications, with the advantage that it can be used with or without the easily mounted and removed guide bushing.
The high speed 10,000 rpm spindle enables optimized machining operations on smaller diameter bar material. The machining length per chucking is now extended to 200 mm enabling the number of re-chuckings and therefore cycle times to be reduced when machining long workpieces. As an option, bar material up to ∅ 25 mm can be machined extending the range of work pieces.
With its Fanuc Series 32i Model B System Control, the A320 offers quick setups and high speed, high precision performance. And with the additional X2 axis, front/back simultaneous machining is possible.
Cincom A20 VII
Additional Details
General
Installation of the Latest NC Unit
Streamline Control
– Direct C-axis Indexing
– Axis Feed Motion Overlap Function
High-Rigidity Technology
Heavy-Duty Bed for More Rigidity
Rigid Sleeve Holders
Rigid Construction Around the Spindle
Roller Guides Now Used on all Sliding Axes
Technology to Cope with Thermal Expansion
Left/Right Symmetrical Bed
Coolant Tank Restricts Heat Emissions
Maintenance Performance
Air Sealing
Centralized Lubrication Unit Installed as Standard
Convenient Operation Assured
Control Panel Layout
USB /PC Card Slot
Product Separator
Product Receiver Box
Large Capacity Coolant Tank
Coolant Nozzles
Chip Compartment
CS Quick Wedge
In-machine Lighting
Functions
Standard NC functions
- NC unit dedicated to the A20
- 8.4 inch color LCD
- On-machine program check function
- Operating time display function
- Preparation function
- Spindle speed change detector
- Nose radius compensation
- Constant surface speed control function
- Program storage capacity: 80 m (approx. 32 KB)
- Product counter indication (up to 8 digits)
- Automatic power-off function
- Continuous thread cutting function
- Pre-processing function
- Tool offset pairs: 49
- Sub micron commands
- Spindle synchronized function
- High speed rigid tapping function
- Chamfering, corner R
- Canned cycle drilling
- Drawing dimension direct input
- Multiple repetitive cycle for turning
- User macros
- Y-axis offset
- Front/Back spindle C-axis function
- Tool life management I
- Tool life management II
- Network I/O function
- Inch command
- Sub/inch command
Functions
Optional NC functions
- Program storage capacity 2560 m (approx. 1 MB)
- Hob/polygon function B
- Optional block skip (9 sets)
- External memory program driving
Accessories
Standard Accessories
- Main spindle chucking device
- Back spindle chucking device
- Rotary guide bushing device
- Cut-off tool breakage detection
- Lighting
- Workpiece separator
- Coolant unit with level detector
- Lubricating oil supply unit with level detector
- Door lock
- Pneumatic device for air sealing
- Machine relocation detector
Accessories
Optional Accessories
- Fixed guide bushing device
- Knock-out jig for through-hole workpiece
- Callback chute
- Long workpiece unit
- Workpiece conveyor
- Chip conveyor
- Coolant flow rate detector
- Signal lamp
- 3-color signal tower
Specifications
Machine Specifications
| ITEM | A20VII (A20-3F7) |
|---|---|
| Max. machining diameter (D) | ∅ 20 mm (∅ 25 option) |
| Max. machining length (L) | GB: 200 mm / 1 chucking (188 mm: ∅ 25 spec.) NGB: 2.5 D |
| Spindle through-hole diameter | ∅ 26 mm |
| Main spindle speed | Max.10,000 rpm |
| Spindle speed of the gang rotary tool | Max. 6,000 rpm (Rating 4,500 rpm) |
| Max. chuck diameter of back spindle | ∅ 20 mm (∅ 25 option) |
| Max. protrusion length of back spindle workpiece | 50 mm |
| Max. protrusion length | 100 mm |
| Back spindle speed | Max. 8,000 rpm |
| Number of tools to be mounted | 21 |
| Tool size: Tool (gang tool post) | ▢1/2″ |
| Tool size: Sleeve | 1″ |
| Chuck and bushing: Main spindle collet chuck | TF25 (TF30: ∅ 25 mm) |
| Chuck and bushing: Back spindle collet chuck | TF25 (TF30: ∅ 25 mm) |
| Chuck and bushing: Rotary tool collet chuck | ER11, ER16 |
| Chuck and bushing: Chuck for drill sleeves | ER11, ER16 |
| Chuck and bushing: Guide bushing | TD25NS (CD25: ∅ 25 mm) |
| Rapid feed rate: All axes (except X1) | 32 m/min |
| Rapid feed rate: X1 axis | 18 m/min |
| Motors: Spindle drive | 2.2 / 3.7 kW |
| Motors: Tool spindle drive | 0.75 kW |
| Motors: Back spindle drive | 1.1 / 1.5 kW |
| Motors: Coolant oil | 0.4 kW |
| Motors: Lubricating oil | 0.003 kW |
| Center height | 1,050 mm |
| Rated power consumption | 7.1 kVA |
| Full-load current | 20.2 A |
| Main breaker capacity | 30 A |
| Air pressure & air flow rate for pneumatic devices | 0.5 MPa • 47 NL |
| Weight | 4,851 lbs |