Nicolas Correa A-30 CNC Bed Type Milling Machine 3 Meters – Overhauling 2018
X Axis 3000 mm
Y Axis 1200 mm
Z Axis 1000 mm
CNC type Heidenhein
Max. spindle speed 3000 rpm
Table length 3500 mm
Table width 1100 mm
Max load on table 8000 kg
Spindle motor power 29.6 kW
Year of overhauling 2018
worked hours
hours under power
state as-is, where-is
status under power
Table Length: 3500.0 mm
Table Width: 1100.0 mm
This CORREA A30 CNC bed type milling machine has undergone a major general refurbishing and is equipped with Heidenhain control, ensuring precision and reliability for your machining needs.
Nicolas Correa A-30 CNC Bed Type Milling Machine – Technical Evaluation (Overhauled 2018)
1. Technical Evaluation Overview
The Nicolas Correa A-30 is a CNC bed type milling machine configured for large and heavy workpieces. Based strictly on the provided information, the machine offers linear travels of X 3,000 mm, Y 1,200 mm, and Z 1,000 mm, paired with a table size of 3,500 × 1,100 mm. The maximum table load is stated at 8,000 kg, indicating suitability for substantial components within the available envelope.
The spindle system is specified with a maximum spindle speed of 3,000 rpm and spindle motor power of 29.6 kW, positioning the machine for medium-to-heavy cutting operations rather than high-speed machining. CNC control is provided by Heidenhain, though the exact control model and software version are not specified and should be verified.
The machine underwent a major general refurbishing in 2018 and is currently described as under power, with condition noted as “as-is, where-is.” No verified operating hours (total or under power) are provided, which limits conclusions regarding wear and remaining service life.
2. What to Check Before Buying
Considering the machine size, refurbishing status, and missing details, inspection should focus on:
Mechanical structure and axes:
Condition and straightness of the bed and guideways across the full 3,000 mm X-axis travel.
Verification of backlash, positioning repeatability, and smooth motion on X, Y, and Z axes.
Confirmation of refurbishing scope completed in 2018 (e.g., guideway reconditioning, ballscrews, bearings).
Spindle and drive system:
Condition of the spindle at both low speed and 3,000 rpm, including bearing noise and thermal behavior.
Verification that the 29.6 kW spindle motor delivers stable torque under load.
Table and load handling:
Flatness and integrity of the 3,500 × 1,100 mm table, especially considering the 8,000 kg load rating.
Inspection of T-slots or clamping interfaces (not specified) for wear or damage.
CNC and electrical system:
Identification of the exact Heidenhain control model, software version, and installed options.
Availability of parameter backups, electrical schematics, and refurbishing documentation.
General condition of electrical cabinets and cooling systems while the machine is under power.
3. Typical Industrial Applications
Based strictly on the stated travels, spindle characteristics, and load capacity, the Correa A-30 is technically suitable for:
Milling of large prismatic components, plates, and frames requiring long X-axis travel.
Heavy roughing and finishing operations where spindle power is prioritized over high spindle speed.
General engineering and fabrication tasks involving large workpieces mounted on a fixed bed.
Specific material suitability, achievable tolerances, and productivity levels cannot be confirmed from the provided data.
4. Common Risks in Used Machines
For used CNC bed type milling machines of this class, typical risks include:
Guideway and ballscrew wear, particularly on long-travel axes.
Spindle wear, affecting surface finish and accuracy under load.
Unclear refurbishing scope, where “overhauling” may vary significantly in depth and components addressed.
Incomplete documentation, especially regarding CNC parameters and refurbishing records.
5. Maintenance and Service Considerations
With no confirmed service history or operating hours, maintenance considerations are limited to general technical points:
Regular inspection of guideways, lubrication systems, and spindle bearings is essential.
CNC data (parameters, PLC, and machine constants) should be backed up before continued operation.
Electrical and drive components should be monitored closely, particularly following relocation or recommissioning.
Any maintenance or upgrade planning should be based on a detailed on-site inspection and functional testing rather than assumptions tied to the 2018 refurbishing.
Final Note:
The Nicolas Correa A-30, as specified, is a large-capacity CNC bed type milling machine with substantial travels and load capability A complete and reliable technical evaluation requires verification through direct inspection, documentation review, and functional testing under power.
