HOMMA HM-8.0/10.0GT MACHINE SPECIFICATION

WORKPIECE CAPACITY

Distance between columns

10,000 mm/ 394"

Max. turning diameter

Ø10,000 mm/ Ø394"

Min. turning height

6,500 mm/ 256"

Max. load on table

200,000 kg/ 440,000 lbs

TABLE

Table diameter

Ø8,000 mm/ Ø315"

Table drive motor

AC200kw (AC 100kw x 2 units)

Table speed (2 range gear drive)

0.1 ~ 30 rpm

Low range: 0.1~3.3~10 rpm

High range: 0.3~10~30 rpm

Max. table drive torque (at 3.3 rpm)

578.497 N-m

Table support bearings

Center: Double rows cylindrical roller bearing, Single thrust ball bearing

Peripheral: Cylindrical roller bearing

Table lubrication

Enforced lubrication with oil controller

Table chucking type

Independent jaws – 8 jaw units

RAM. RAM HEAD

Type/ Square section type ram

500x500mm/ 19.7"x19.7"

Bite holder clamping

Pull stud drawing in – by disc spring

Clamping force: 23,000 kg/ 50,600 lbs

Bite holder unclamping

Hydraulic cylinder 

Bite holder positioning

Curvic coupling

Bite shank size

40x40mm square / 1.6"x1.6"

Bite overhang

From ram center line: 350 mm/ 13.8"

From ram lower face: 400 mm/ 15.7"

Max. ram cutting force

70,000 N-m

Ram head L-R movement stroke (X-axis)

-200~5,800 mm/ -7.9"~228"

Ram U-D movement stroke (Z-axis)

3,500 mm/ 138"

Ram head feed speed (X-axis)

0.01~500 mm/min/ 0.0004~19.7 inch/min

Ram feed speed (Z-axis)

0.01~500 mm/min/ 0.0004~19.7 inch/min

Ram head rapid feed speed (X-axis)

6,000 mm/min/ 236 inch/min

Ram head rapid feed speed (Z-axis)

6,000 mm/min/ 236 inch/min

Ram head feed drive

AC motor and Ball screw

Ram feed drive

AC servo motor and ball screw of L and R - 2 units

Ram feed drive control

Tandem control of feed drive for L and R side

Ram weight balancing

Hydraulic counter balancing of L and R side

Ram head, Ram

position control

CROSS RAIL

Up and down movement stroke (A-axis)

4,000 mm / 157"

Feed speed (A-axis)

1~1,000 mm/min/ 0.04~39.4 inch/min

Rapid feed speed (A-axis)

1,000 mm/min/ 39.4 inch/min

Feed drive (A-axis)

AC servo motor and ball screw L and R - 2 units

Feed drive control

Synchronous control of L and R

Weight balancing

Hydraulic counter balancing of L and R side

Clamping type

Hydraulic-auto, clamping force 15 ton x 2

Positioning control

Closed loop control by optical scale feedback

(Heidenhain)

ATC UNIT - Arranged at front side column, Rotary type

Number of bite holder storage

6 units

TOOL POINT CHECKING UNIT - Arranged at cross rail left side, Touch probe type

Function

Checking and compensating of X, Z axis

Checking unit

0.001 mm

Touch probe

Metrol H4A

CNC CONTROL

Fanuc 31i-B X, Zm, Zs, Am, As of 5 axis control

CONTROL PANEL – Arranged at front of right column

Function of movement

Moving up-down, forward-retract by electric motors

Control panel

Pendent type:

1 unit with monitoring display for working area

Standing type on operating platform:

1 unit with monitoring display for working area

Closed loop control by optical scale feedback (Heidenhain)

 

 

HOMMA
HM-8.0/10.0GTN Double Column
CNC Vertical Turning Lathe

 

 

 

1. Major components – manufacturing and material
Double column hosing – Consists of both left and right side column and beam between columns, columns and beam are firmly connected by bolts.

  • Columns:

      Weldment of steel plate (JIS SS400, annealing of welding stress)

      Box shape construction

  • Beam:     

      Same as columns

  • Bed:        

      Weldment of steel plate (JIS SS400, annealing of welding stress)

      3-pieces construction

  • Table:

            Castings – 1 piece construction (JIS FC300, annealing of casting stress)

            Take Box shape section and radial ribs are arranged from table center

  • Cross slide:

            Body portion – Weldment of steel plate (JIS SS400, annealing of welding stress)

            Box shape construction

            Saddle guide rail portion – Castings (JIS FC300, annealing of casting stress)

  • Saddle: Castings (JIS FC300, annealing of casting stress)
  • Ram: Weldment of steel plate (JIS SS400, annealing of welding stress)

 

2. Table

  • Hi-rigidity, Hi-precision –

      Center: double row roller bearing, single thrust ball bearing

            Peripheral: Thrust roller bearings are used.

  • Powerful, Smooth drive –

           AC 100kw x 2 units motor with 2 range gear drive. All drive gears are heat treated and   

           ground finish.

 

3. Ram and Ram head

Ram takes 500mm dimension of section and 4-faces of ram are guided by Tercite B coated face with precision scarping, therefore hi-rigidity and precise movement is assured. Ram head takes liner bearings between upper face of cross slide guide face and contacts to front and therefore hi-rigidity and precise movement is assured.

 

4. Cross rail

Cross rail takes enough dimension of contact face to columns (width of height and depth of from-gear direction), therefore hi-rigidity and stability is assured. Compensating function of deflection for span: Wedge blocks are mounted by equal distance space between cross rail body portion (Weldment of steel plate) and saddle guide rail portion (Castings).

 

Standard Accessories

 

¨      Foundation metal fittings

  • Foundation bolts and nuts
  • Leveling blocks
  • Pad plates

¨      Standard maintenance tools

¨      Electrical equipment and secondary wirings

¨      Hydraulic, lubrication unit and piping

¨      Telescopic steel way cover

¨      Below cover for column

¨      Machine and cabinet light

¨      Warning light

¨      Telescopic cover for cross-rail (X-axis) sideway (Steel)

¨      CNC control Fanuc 31iB

¨      Pendant switch box

¨      Air conditioner for control panel

¨      Oil controller for table lubrication

 

 

 

 

Machine Investment

 

HOMMA HM-8.0/10.0GTN VERTICAL TURNING CENTER

Machine with Standard Accessories............................................. $7,500,000.00

Special Package Price.................................................................... $4,750,000.00

 

Financing available