USED 1999 HOMMA HTM-5.5 GTN

FANUC-15M CNC Control
Guide: Hydrostatic Bearing & Hydrostatic Ram Guide
Attachment Coupling: Curvic Coupling

This gantry-type turning and milling machine is designed to perform high-precision, high-efficiency turning operations on large components, such as turbine nacelles, as well as full-scale milling operations on large components like marine diesel engines.

Universal Ram Head:
Ram Size   575 × 575 mm
Main Spindle Motor   AC 60 / 75 kW
Attachment Mounting Diameter   Ø150 mm
Spindle Taper   ISO No. 50
Spindle Diameter   Ø120 mm
Spindle Bearings   NN3024K + 120BT10X
Spindle Speed   10 – 2,580 rpm
Speed Range   Low: 10–275 rpm / High: 30–825–2,580 rpm
Speed Change   2-Speed Gearbox + 2-Speed AC Motor
Gear Shift System   Hydraulic Sliding Shift
Ram Guideway   S4 Hydrostatic Guide
Maximum Spindle Torque (275 rpm)   2,603 N·m (Approx. 265 kg·m)
Tool Clamping Force   2,500 kg (Disc Spring)
Tool Unclamping System   Hydraulic Cylinder

Ram Head Feed (Y- & Z-Axes):
Y-Axis Travel   10,000 mm
Z-Axis Travel   2,300 mm
Y-Axis Feed Rate   1 – 5,000 mm/min
Z-Axis Feed Rate   1 – 4,000 mm/min
Y-Axis Rapid Traverse   8,000 mm/min
Z-Axis Rapid Traverse   8,000 mm/min
Ball Screws   Y: BS9050-FRRB2-C3 ×2
Z: BS6316-FRRB2-C3 ×2
Z-Axis Counterbalance   Hydraulic Counterbalance (Twin Cylinders)
Feedback System   Closed-Loop Control

TABLE:
Table Diameter     Ø5,500 mm
Table Speed Range (Low)   0.1 – 4.4 min⁻¹ (3-step Gear)
Table Speed Range (High)   0.3 – 13.3 min⁻¹ (3-step Gear)
Table Drive System   2-Speed Gear Transmission + AC Motor
Table Speed Control   Hydraulic Cylinder
Table Rotation Command   S4 Four-Digit Direct Command
Table Support System   Center: Double-row Cylindrical Roller Bearing (Model: NN30/530KP5)
Outer Periphery: Thrust Roller Bearing
Maximum Table Torque (at 4.4 rpm)   195,000 N·m (Approx. 19,900 kg·m)
Table Jacking System   8 Hydraulic Jacking Units

Table C-Axis (VB Axis):
C-Axis Rotation Speed   0.1 – 200 deg/min
Maximum Rotation Speed   200 deg/min
Position Feedback System   Hybrid Resolver Feedback
Rotary Encoder   ROD-800
Table Clamping System   Hydraulic Disc Brake
Table Clamping Torque   49,000 N·m
Drive System   Double Worm Gear with Synchronous Servo Drive
Maximum C-Axis Torque   15,973 kg·m
Position Resolution   0.001°
Positioning Accuracy   ±0.001°

Gantry Traverse (X-Axis):
X-Axis Travel   12,000 mm
Feed Rate   1 – 5,000 mm/min
Rapid Traverse   8,000 mm/min
Drive System   Double Pinion Drive
Gantry Clamping System   Hydraulic Automatic Clamping
Clamping Force   8,000 kg
Guideway System   Hydrostatic Bearing
Drive Motor   Synchronous Hybrid Servo Motor
Position Feedback   Magnescale (Sony)
Bed Extension   Bed structure extendable for future expansion