German
Brazil
English
Russian
Chinese
11 12 14

NBH 1200

for large and heavy workpieces

Double pallet changer with linear pallet in-feed

Original MAG NBH rack-type cassette magazine

  • Increase uptimes by changing a set of 50 tools within the machining cycle in 300 seconds

Practice-oriented tool data

  • Tool length 650 mm
  • Tool weight 40 kg
  • Bridge-type tools ø 500 mm

 

 

Basic Machine

Machine bed

  • Inherently rigid structure, optimized after the finite element method, as a thick-walled and extensively ribbed casting
  • Optimum chip removal through large chip and return channels for the chip flushing water

Machine column

  • Thick-walled and extensively ribbed casting
  • Closed, torsion and vibration-proof gantry-type column, thermosymmetric structure
  • Integrated tool changer

Table component

  • Compact cast-iron table housing
  • NC rotary table with 0.001° division controlled by the 4th CNC axis
  • Compressed-air prevents the penetration of coolant and dirt

Digital axis drives

  • Direct drive with maintenance-free A.C. servomotors and high-precisio recirculating ball screws with preloaded double nut
  • Space-coded position measuring system, direct position measuring in all axes

Backlash-free form rail guidances

  • All linear axes are equipped with form rail guidances
  • High positioning accuracy
  • High circularity accuracy
  • High carrying capacity for a long working life due to the largely dimensioned roller bearing units

Modular spindle variants

  • 25 - 6,000 rpm standard headstock (two-step gear) with steel ball bearing
  • 25 - 10,000 rpm (two-step gear) with hybrid bearing [option]

Spindle

  • Compact cast-iron housing with thermo-symmetric structure
  • Working spindle as a complete unit; for service work, the unit may be replaced within a very short time
  • High concentric running accuracy due to three-bearing support, extremely rigid spindle
  • Long working life through labyrinth seal which in conjunction with compressed-air prevents the penetration of coolant and/or dirt
  • Automatic two-step switching gear without clutch
  • Spindle positioning via shaft encoder
  • Connection for internal coolant supply
  • Safe tool location since the tool taper is cleaned by air jet during the changing procedure

Parallel changer

  • Due to the higher workpiece weights both, the nbh 350 is equipped with the proven parallel changer
  • Double pallet changer with linear pallet in-feed thus offering independent loading, unloading and resetting facilities
  • The largely dimensioned loading and unloading space is protected by automatic doors against coolant and chips ejected from the working area
  • The resetting station is protected by a light barrier

Rack-type Cassette Magazine

The original MAG NBH rack-type cassette magazine can load 8 toolcassettes with 50 tool locations each:

  • In-process re-setting of complete tool sets
  • Tool loading station for inward and outward in-process transfer of single (worn-out) tools
  • No affecting of tools by coolant and chips due to the overhead arrangement
  • Location-coded tools with electronic management

Tool handling equipment

  • Short access times through high traversing speed (160 m/min)
  • No controlles motions
  • Brushless, digitally controlled A.C. servo drives with absolute position measuring system
  • Taper cleaning device in gripper of handling equipment

Tool changer

  • Quick tool changing due to the electro-mechanical forward and backward motion of the double-tong unit
  • Programmable accelerating and changing speeds for variable tool weights
  • Safe tool changing due to hydraulic tool clamping
  • Direct transfer of the tool from the tool handling equipment
  • Brushless, digitally controlled A.C. servo drives

Tool management

  • Tool life monitoring with automatic exchange for twin tools
  • Tool life / tool life quantities management

Options

Modular spindle variants

  • 10.000 rpm (two-step gear) with hybrid bearing
  • 5000 rpm or 7500 rpm gear spindle with 120 mm diameter in front bearing
  • 5000 rpm powerful gear spindle: 2600 Nm 40% duty

Alternative tool taper

  • SK 50
  • HSK 100
  • ANSI 50

Tool rack-type cassette magazine

  • 150 tool locations, 3 tool cassettes
  • 200 tool locations, 4 tool cassettes
  • 300 tool locations, 6 tool cassettes
  • 400 tool locations, 8 tool cassettes

Tool options

  • In-process tool breakage in the tool magazine area
  • Tool easuring in working area
  • Renishaw measuring system

Tool and prcozess monitoring

  • Monitoring of feed force (Z-axis) during the machine cayle
  • Monitoring of main spindle motor torque
  • Adaptive control

Swivelling set-up station

  • Swivelling and indexing set-up stations are available fort he ergonomic loading and unloading of clamping fixtures which are not easily accessible

CNC facing unit

  • Separate NC drive for facing tools on the headstock
  • The tool handling equipment automatically loads the CNC facing head into the spindle

Guarding

  • Work area extraction
  • Rotating wiper VISIPORT
  • Coolant flush system for working area
  • Coolant flush pistol on loading station
  • Signal lamp: red/yellow/green

Pallet storage systems

  • Multi-pallet storage system (MPS)
  • Flexible pallet container (FPC)
  • Multi-level pallet storage system
  • Robot and gantry loader automation

Technical Data

Horizontal Machining Center model NBH 1200
Working Range    
X-axis mm 1800 [2600]
Y-axis mm 1250 [1600]
Z-axis mm 1400 [1780]
Swivel range in working area ø mm 2100 [2800]
Fixture height mm 1700
Position Measuring System integrated in rail [glass scales] type direct
Positioning error A (DIN ISO 230-2) mm 0.007
Pallet / Rotary Table    
Pallet clamping surface DIN 55201 mm x mm 1000 x 1250
Pallet load max. kg 3500 [7000]
Torque table, smallest fraction deg [0.001°]
Positioning error A (DIN ISO 230-2) deg 0.004°
Pallet changing time (VDI 2852) approx. s 80
Gear Spindle    
Speed range max. rpm 6000 / [10,000]
Spindle power 40% duty kW 46 / 46
Torque 40% duty Nm 1130 / 1130
Diameter in front bearing mm 100 / 100
Tool taper (DIN 69871) SK 50 / 50
Tool taper (DIN 69893) HSK [100] / [100]
Tool taper (ANSI) ANSI [50] / [50]
Gear Spindle [option]    
Speed range max. rpm [5000] / [7500]
Spindle power 40% duty kW 46 / 46
Torque 40% duty Nm 1130 / 1130
Diameter in front bearing mm 120 / 120
Tool taper (DIN 69871) SK 50 / 50
Tool taper (DIN 69893) HSK [100] / [100]
Tool taper (ANSI) ANSI [50] / [50]
Gear Spindle [option]    
Speed range max. rpm 5000
Spindle power 40% duty kW 80
Torque 40% duty Nm 2600
Diameter in front bearing mm 130
Tool taper (DIN 69871) SK 50
Tool taper (DIN 69893) HSK 100
Feed / Rapid Traverse    
Feed range X-, Y-, Z-axis mm/min 0 - 40.000
Feed force X / Y / Z axes, 40% duty, approx. kN 40 / 50 / 50
Rapid traverse X-, Y-, Z-axis m/min 40
Acceleration X-, Y-, Z-axis m/s² 2.5 / 5 / 4.5
Rapid traverse B axis rpm 40
Rack-type Cassette Magazine    
Tool loading/unloading station [drawer] no. 1 [4]
Tool cassette no. 2 / [3] / [4] / [6] / [8]
Tool locations, standard no. 100 (2 x 50)
Tool locations [option] no. 150 / 200 / 300 / 400
Tool diameter (maximal) mm 125 (325)
Tool length max. mm 650
Tool weight max. kg 40
Chip-to-chip time, tools up to 6 kg (VDI 2852) approx. s 9,5
Coolant Equipment    
Tank contents approx. l 2000
Pump capacity at 1 bar l/min 30
Pump capacity at 25/50 bar l/min 10
Machine installation    
Space requirement of basic machine ¹), L x W x H approx. m 9.7 x 8.2 x 4.1
Weight approx. kg 43,000
     
Technical data subject to change [...] = option  
1) = Machine with 2 cassettes    
ID:703