Gear Shaping Machines

Gear Shaping Machines S series for large diameter gears

Company:NIDEC MACHINE TOOL CORPORATION

Gear Shaping Machines S series for large diameter gears

Features 1

The S series gear shaping machines are ideal for processing medium and large workpieces.

SC40

SC40

  • Max. workpiece diameter (mm)
    External gear: ?400
    Internal gear: ?400 (?250 + cutter dia.)
  • Max. module
    8
SC63

SC63/100

  • Max. workpiece diameter (mm)
    External gear :φ650mm / φ1,000mm
    Internal gear : ?650mm / ?1,000mm
  • Max. module
    8 / 12

Features

Excellent machining accuracy

Based on the highly rigid and highly accurate mechanical structure including the table, sliding surface, and feed axes, this product pursues high machining accuracy from all aspects, such as improving positioning accuracy and reducing the effects of thermal displacement. The S series achieve JIS class 5 [JIS B1702 (1998)] for high-precision gears (spar gears).
In addition, repeatability of processing precision is guaranteed to be Cp=1.33 for an overball diameter tolerance of 50 μm using thermal displacement compensator. S series meet the needs of high precision and can handle even challenging orders with reliable quality.

S series illustration
The example showing repeatability of machining accuracy for overball diameter

Stable machining quality

Stable machining quality is maintained by thorough measures against thermal deformation.

When cutting oil becomes heated during the machining process and splashes over the surface of the machining bed, the workpiece may experience dimensional variations due to mechanical thermal displacement.
To prevent this, some coolant is circulated within the bed to maintain uniform thermal distribution, minimizing thermal displacement.

S series illustration
In-bed coolant circulation diagram

Specifications

Item / ModelSC40CNCSC63CNCSC100CNC
Max. workpiece diameterExternal gear (mm)?400?650?1,000
Internal gear (mm)?400
(?250 + cutter dia.)
?650?1,000
Max. module8812
Max. gear width (mm)115200200
Spindle stroke speed (min-1)50 to 80030 to 30030 to 300
Number of cuts1 to 41 to 41 to 4
Cutter spindle diameter (mm)?100?120?120
Main motor (continuous rating) (kW)7.516 × 216 × 2
No of controlled axes555
Total electric power (kVA)314141
Machine weight (kg)10,00017,00017,000