LG - External grinding machine

High precision grinding machine
LG External grinding machine DANOBAT
LG External grinding machine DANOBAT

The LG cylindrical grinding machine has been developed for high precision component grinding.  It is ideal for high volume production and highly flexible batch production runs of parts such as automotive components, ultraprecision hydraulic parts, cutting tools and form grinding e.g. cam grinding.

The grinding machine’s natural granite base and the linear motor driven slides provide the high accuracy and thermal stability required for these high demanding applications. These specifications also allow the grinding of non-round components.

The use of electric-spindle makes possible the combination of conventional and high speed grinding. This produces a maximum peripheral wheel speed of 140 m/s and covers the range necessary for grinding with conventional abrasive (60 m/s) or super abrasives (up to 140 m/s) with maximum torque.

In addition, the cylindrical high precision grinding machine is versatile and flexible with the directly driven B axis and the use of multiple wheels. Requirements of completely automated manufacturing processes are fulfilled with the incorporation of customized automatic loading systems developed by Danobat, e.g. integrated gantry or robot solutions, guaranteeing minimum loading and unloading time (2-6 s depending on applications).

  • Linear motors on both dressers. High-resolution linear scale to control the position of axes.
  • Torque motor B-axis.  ±1 μm repeatability on a 650 mm radius.
  • Built-in spindles 
    • Work spindle, wheel spindles and dressing rotary spindles driven by built-in motors.
  • Extensive portfolio of wheelhead options to enable multiple operations to be carried out in a single set up.
  • Availability.
    • Critical components built in-house, such as, workhead, B-axis, wheel spindles and MUCH MORE!
    • Exchange program. Premium, service at a minimum cost, without third-party intervention.

Go fast! Wheel peripheral speed: up to 140 m/s

Workpiece length between centres: up to 1000 mm

Productivity!Automated solutions

Machining processes

Internal cylindrical grinding

Internal cylindrical grinding

External cylindrical grinding

External cylindrical grinding

Face tangential grinding

Face tangential grinding

High speed grinding

High speed grinding

Eccentric grinding

Eccentric grinding

Unround grinding

Unround grinding

Countouring grinding

Countouring grinding

Characteristics

 

 

LG-200

LG-400

LG-600

LG-1000

Max. distance between centres

mm

200

400

600

1000

in

7.87

15.74

23.62

39.37

Max. diameter to be ground

mm

200

290

290

290

in

7.87

11.41

11.41

11.41

Max. weight between centres

kg

30

50

50

80

lb

66

110

110

176

Max. grinding wheel diameter

mm

400

500

500

500

in

15.74

19.68

19.68

19.68

Max. wheel peripheral speed

m/s

140

140

140

140

sfpm

27560

27560

27560

27560

*Based on customers’ requirements, other machine capacities & configurations could be taken into account

 

 

 

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Applications

Machining test
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