Schleicher Technic vs. other manufacturers

Why Schleicher Technic CNC machines?

See for yourself the technical differences and the resulting advantages of our CNC machines compared to other manufacturers of engraving and milling machines. Some of the points of comparison require technical know-how about machine elements and designs. Please do not hesitate to contact us if you have any questions.

 

  Schleicher Technic Other manufacturers
Machine stability

High

  • Use of solid base supports with backlash-free profile rail guides
  • Optimized machine design with low leverage forces
  • Axis drives with high torque
  • Low vibration

Low

  • No solid base supports (partly sheet metal construction)
  • Use of shaft guides (deflection under load)
  • Use of very small bearing and guide elements
  • Construction leads to increased vibrations
Precision and accuracy

 High

  • Use of precision-machined base supports
  • Preloaded recirculating ball screw drives
  • High accuracy of the machine geometry (angularity, parallelism, flatness)

Low

  • No precision-machined base supports or sheet metal parts (flatness errors)
  • Guide elements partially screwed directly onto sheet metal parts
  • Design-related and incorrect machine geometry
Rotary axis

High precision and performance

  • Precise Harmonic-Drive gearbox (backlash-free)
  • High bearing rigidity due to preload of the bearing units
  • High torques possible due to high reduction ratio

 

Low precision and performance

  • Partly without gearbox (mounting directly on motor shaft) leads to low rigidity and thus to deflections under load
  • Low torques, as there is no gear reduction

 

Engraving and milling spindle

High precision and performance

  • High concentricity
  • Centrically clamping tool holder
  • Speeds of up to 60,000 rpm possible
  • High cutting speeds and feed rates can be realized
  • High rigidity thanks to the use of large ceramic spindle bearings

Low precision and performance

  • Low concentricity due to non-centric clamping of the tool holder
  • Low concentricity leads to high tool wear
  • Speeds too low (<18,000 rpm) and therefore cutting speeds and feed rates too low
  • Low spindle rigidity due to the use of very small spindle bearings (deflection)
Tool life / durability

Very high

  • Due to the high precision of the milling spindle (concentricity) and high structural stability
  • Optimum cutting data for the tools thanks to adjustable speed
  • Tool cooling and lubrication available (VEROMILL)

Low

  • Due to low precision of the milling spindle (concentricity error)
  • Due to low machine stability (vibrations)
  • No optimum cutting data for the tools due to partially non-adjustable speed ranges
Compensation of uneven workpiece surfaces

Electronic

  • Patented electronic height correction
  • Automatic measurement of surfaces
  • Optimum cutting depth (several individual cutting depths lead to the total engraving depth)
  • No manual adjustment of the engraving depth necessary
  • No readjustment necessary
  • No scratches on surfaces (abrasive sleeve)

Mechanical

  • Mechanical engraving depth regulator
  • Engraving depth must be set manually
  • Re-adjustment of the depth cuts necessary
  • High tool wear as the cutting depth is usually too high
  • Scratches can occur on the workpiece surfaces due to the abrasive sleeve of the engraving depth regulator
Machine housing

Yes

  • Modern and elegant machine housing with front lift door
  • Very low noise emission
  • Protection against dust and soiling of the machine elements provided
  • Precious metals and chips collect in the machine and can be removed quickly and easily

No

  • High noise emission
  • No protection against dust and dirt
  • Precious metals and chips spread throughout the entire environment and have to be laboriously collected
Clamping elements (jaw chuck, vice, clamping jaws)

High precision

  • Precise clamping elements with high repeat accuracy
  • Precise workpiece zero points (e.g. ring centers)
  • Stable and strong clamping thanks to innovative clamping jaw geometry (no shrink sleeves required)

Low precision

  • Low precision and repeat accuracy
  • Ring centers are not approached precisely, among other things
  • Shrink tubes required for 3-jaw chucks (quirks, slipping)