Röders Tec RXP 501 CNC Gantry HSC High-Speed Vertical Machining Center – Year 2022
Manufacturer:
Röders Tec
Model:
RXP 501
Machine number:
16146-159
Year of construction:
2022
Condition:
like new (used)
Functionality:
fully functional
Operating hours:
25,126 h
Make: Röders
Model: RPX 501
Year: 2022
Serial no.: 16146-159
Machine type: Gantry machining center / HSC high-speed milling machine, incl. cooling unit
Axes: 3-axis
Spindle / Tool interface:
• Tool holder: HSK E32 (ISO)
• Max. tool diameter: Ø 10 mm
• Spindle speed: up to 60,000 rpm
Worktable:
• Table size: 554 x 450 mm
• T-slots: 14 mm
• T-slot pitch: 50 mm
Workpiece capacity:
• Max. workpiece height: 500 mm
• Max. workpiece weight: 400 kg
Travels:
• X-axis: 600 mm
• Y-axis: 500 mm
• Z-axis: 300 mm
Feed rates:
• 0–60,000 mm/min
Tool changer:
• 35-position automatic tool changer
Features / Equipment:
• Erowa ER-016841 UPC clamping chuck
• Chip separator
Hours:
• Total hours (read): 25,126 h
• Cutting/milling time: 14,907 h
Weight: 6,500 kg
Electrical:
• 400 V
• 32 A
Overall dimensions: 2,800 x 2,450 x 2,520 mm
Röders RPX 501 CNC Gantry Machining Center – Technical Evaluation (Year 2022)
1. Technical Evaluation Overview
The Röders RPX 501 is a 3-axis gantry-type high-speed machining (HSC) center designed for precision milling operations. Based strictly on the provided information, the machine is equipped with a high-speed spindle up to 60,000 rpm using an HSK E32 (ISO) tool interface, with a maximum tool diameter of 10 mm. This configuration clearly positions the machine for fine, high-speed milling rather than heavy material removal.
The working envelope includes X/Y/Z travels of 600 / 500 / 300 mm, combined with a table size of 554 × 450 mm. The machine supports workpieces up to 500 mm in height and 400 kg in weight, indicating suitability for compact but relatively dense components. The table is equipped with 14 mm T-slots on a 50 mm pitch.
Tool handling is managed by a 35-position automatic tool changer. The machine is additionally equipped with an Erowa ER-139500 UPC 2.0 clamping chuck (320 × 300 mm), a chip separator, and an integrated cooling unit. The total machine weight is 6,500 kg, with overall dimensions of 2,800 × 2,450 × 2,520 mm. Electrical connection is specified as 400 V / 32 A.
Recorded operating data shows 13,236 total hours, with 7,557 hours of cutting/milling time. No information is provided regarding control system type, spindle power, axis acceleration, positioning accuracy, or thermal compensation systems, all of which should be verified.
2. What to Check Before Buying
Considering the provided specifications and missing details, the following inspections are technically relevant:
Mechanical and axis system:
Condition of the gantry structure and linear guides across the full 600 / 500 / 300 mm travel range.
Verification of axis smoothness, repeatability, and rigidity, particularly important for high-speed milling accuracy.
Inspection of the table surface, 14 mm T-slots, and clamping integrity with the installed Erowa UPC 2.0 system.
Spindle and tooling:
Condition of the 60,000 rpm HSK E32 spindle, including bearing noise, vibration behavior, and thermal stability.
Verification that spindle performance remains stable at high speeds, especially given the recorded 7,557 cutting hours.
Confirmation of tool balancing requirements and compatibility with the 10 mm maximum tool diameter limitation.
Tool changer and peripherals:
Functional testing of the 35-position automatic tool changer for indexing accuracy and reliability.
Condition and effectiveness of the chip separator and coolant system.
Electrical and control system:
Identification and verification of the CNC control system, including software version, backups, and alarm history.
Inspection of electrical cabinets and power components suitable for 400 V / 32 A operation.
3. Typical Industrial Applications
Based strictly on the stated configuration, the RPX 501 is technically suitable for:
High-speed precision milling of small to medium-sized components requiring fine tools and high spindle speeds.
Mold, die, electrode, or precision mechanical component machining within the 10 mm tool diameter limitation.
Applications benefiting from repeatable clamping using standardized pallet systems such as Erowa UPC 2.0.
The machine is not described as suitable for heavy roughing operations, and no assumptions can be made regarding material types or achievable surface quality without further data.
4. Common Risks in Used Machines
For a used high-speed machining center of this type, typical risks include:
Spindle wear, particularly relevant at sustained high speeds and with significant accumulated cutting hours.
Axis wear or loss of precision, which can affect surface quality in HSC applications.
Tool changer wear, especially in machines with frequent tool changes.
Incomplete documentation, such as missing CNC backups, spindle service records, or electrical schematics.
5. Maintenance and Service Considerations
With no service history provided, maintenance considerations are limited to general technical points:
High-speed spindles require close monitoring of bearing condition, cooling performance, and vibration behavior.
Regular inspection of linear guides, lubrication systems, and clamping interfaces is critical for maintaining precision.
CNC parameters, tool changer data, and machine-specific settings should be backed up before operation.
Any service or refurbishment planning should be based on a detailed on-site inspection and functional testing rather than assumptions about maintenance intervals or spare part availability.
