Used MIKROSA KRONOS M 400 Centerless Grinder
Product Description
This used 2015 MIKROSA KRONOS M 400 is a German-made CNC centerless external cylindrical grinding machine designed for precision and high-volume production. Featuring a granite machine bed, six CNC-controlled axes, full closed-loop scale feedback and an available grinding diameter range of 3–100 mm, it is suitable for demanding automotive, bearing and precision component applications.
The machine is shown installed in a production workshop with automation and auxiliary equipment. Final configuration, included accessories and operating condition should be confirmed before purchase.
Technical Specifications
| Item | Specification |
|---|---|
| Machine condition | Used / Pre-owned |
| Manufacturer | SCHAUDT MIKROSA GmbH |
| Brand | MIKROSA |
| Model | KRONOS M 400 |
| Machine type | CNC centerless external cylindrical grinding machine |
| Year of manufacture | 2015 |
| Country of origin | Germany |
| Manufacturer location | Leipzig, Germany |
| Order number | 39154009 |
| CNC-controlled axes | 6 axes |
| Known axis designations | X1, X2, X4 and Z2; complete axis configuration to be confirmed |
| Feedback system | Full closed-loop linear scale feedback |
| Machine bed | Artificial granite / GRANITAN bed |
| Grinding method | Through-feed and plunge/infeed centerless grinding, subject to tooling configuration |
| Grinding diameter range | 3–100 mm |
| Maximum plunge grinding length | 395 mm |
| Minimum programmable infeed increment | 0.0001 mm, reference value |
| Stated roundness capability | Less than 0.0005 mm under specified ISO test conditions |
| Grinding wheel dimensions | 610 × 400 × 304.8 mm |
| Minimum usable grinding wheel diameter | 460 mm |
| Regulating wheel dimensions | 350 × 400 × 152 mm |
| Minimum usable regulating wheel diameter | 280 mm |
| Enclosure | Fully enclosed grinding area |
| Automation | Loading and conveying equipment visible; final scope to be confirmed |
| Cooling and filtration | Auxiliary cooling/filtration equipment visible; inclusion to be confirmed |
| Acceptance documentation | Original KRONOS M/L acceptance-condition documents available |
Selected Acceptance Test Data
| Inspection item | Permitted valuea | Recorded value |
|---|---|---|
| Grinding-wheel dressing slide straightness | 0.003 mm over 300 mm | 0.003 mm |
| Grinding-wheel dressing slide parallelism | 0.010 mm over 300 mm | 0.008 mm |
| Control-wheel dressing slide straightness | 0.003 mm over 300 mm | 0.003 mm |
| Control-wheel dressing slide parallelism | 0.010 mm over 300 mm | 0.006 mm |
| Work-rest support parallelism | 0.050 mm over 300 mm | 0.010 mm |
| Work-rest reference-surface parallelism | 0.030 mm over 300 mm | 0.009 mm |
| Control-wheel spindle taper concentricity | 0.005 mm | 0.001 mm |
| Control-wheel spindle axial play | 0.005 mm | 0.001 mm |
| Grinding spindle taper concentricity | 0.005 mm | 0.001 / 0.002 mm |
| Grinding spindle axial play | 0.005 mm | 0.003 mm |
| X1 positioning repeatability tolerance | 0.002 mm | Recorded values up to 0.0001 mm |
| X1 small-travel repeatability tolerance | 0.002 mm | 0.0006 mm |
Technical note: Accuracy and production results depend on the workpiece, grinding wheel, regulating wheel, tooling, coolant, setup, maintenance condition and inspection method. All specifications should be verified during technical inspection.
Applications and Suitable Production Scenarios
The used MIKROSA KRONOS M 400 centerless grinder is suitable for precision grinding of cylindrical components that require consistent diameter, roundness and surface quality.
Typical workpieces include:
- Bearing rollers, pins and cylindrical bearing components
- Automotive shafts, valve parts and transmission components
- Hydraulic and pneumatic valve spools
- Motor shafts, rotor shafts and precision pins
- Fuel-system and injection-system components
- Cutting-tool blanks and carbide rods
- Medical and precision instrument components
- Stainless-steel, hardened-steel and alloy-steel cylindrical parts
It is particularly suitable for manufacturers that need automated batch production, stable centerless grinding accuracy and a lower investment than purchasing a new German CNC grinding machine.
FAQ
Is this MIKROSA KRONOS M 400 a new or used machine?
This is a used 2015 MIKROSA KRONOS M 400 centerless grinding machine manufactured in Germany. It is being offered as pre-owned industrial equipment, not as a new machine.
What workpiece diameters can this centerless grinder process?
The stated grinding diameter range is approximately 3–100 mm. The actual workable range will also depend on the work-rest blade, regulating wheel, grinding wheel, loading system and part geometry.
Can the machine perform both through-feed and plunge grinding?Can the machine perform both through-feed and plunge grinding?
The KRONOS M 400 platform is intended for centerless external cylindrical grinding. Based on the supplied configuration information, plunge or infeed grinding is supported, with a stated maximum grinding length of 395 mm. Through-feed capability and the installed tooling should be confirmed during inspection.
Similar Products of This Type
$308824.00
Brand
MIKROSA
Model
KRONOS M 400
Origin
DE
Processing Time
1132h
Machine Status
- In stock
- Company-owned inventory
- Delivery time: 9 days
Available inspection support
- Machine appearance check
- Control system power-on check
- Spindle and axis movement check
- Grinding area photo check
- Electrical cabinet photo check
- Machine nameplate verification
- Remote video inspection
- Optional third-party inspection
Supplier's customization ability
- Minor customization
- Drawing-based customization
- Sample-based customization
- Full customization