INDUSTRIAL PLANT MACHINERY SALES
(847) 998-8882

 

Droop & Rein Model HMC 275, 8 Axis CNC 8” Horizontal Boring Mill
SPECIFICATIONS
Spindle Diameter
Spindle Speed
Spindle Taper
Travel X-Axis
Travel Y-Axis
Travel W-Axis
Combined W Ram & Spindle Travel
Travel Z-Axis
Feeds:X Axis
Feeds: Y Axis
Feeds: W Axis
Feeds: Z Axis
8”
5 to 1500 RPM (140 HP)
60 and Cat 50
40 Feet
115”
48"
88”
40”
0.01 -240 IPM
0.01 -240 IPM
0.01 -240 IPM
0.01 – 240 RPM
EQUIPPED WITH
Rotary table (B Axis 0.001)
B Axis Feed range @ 137” Dia.
Control
Angle Plates (2)
Angular milling attachment
Speeder attachment
60 station ISO 50 tool changer
Thru Spindle High Pressure Flood Coolant systems
Chip conveyor
118” x 149”
346 IPM
Heidenhain TNC 430
49” (W)  x 60” (D) x 120” (H)
90 HP, 1500 RPM



MAJOR MACHINE MODIFICATIONS
1.) Ball screws (80 mm)
2.) Indramat axis motors and drives
3.) Turcite anti-friction material and Tychoway linear bearings on X axis
4.) Lubrication systems
5.) Speeder Attachment (Max. Speed 6,000 RPM)
6.) Head balance system
7.) Axis feed back systems
8.) Fabric bellow covers on ‘Y’ axis
9.) Steel telescopic covers on ‘X’ axisFeatures that were reworked during the 2000 Retrofit and Upgrade

Features that were reworked during the 2000 Retrofit and Upgrade
Ram and spindle configuration

All electric’s

Renishaw tool probing

Thermal compensation ‘X' and 'Z' axis.

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