Holz-Her Dynestic 7521

Used machine
Basic machine - Dynestic 7521 20.6 Dynestic table
For classic nesting machining with wear plate
Machining length 6250 mm
(DYNESTIC 20.6 additional 4th stop in Y already included)
Machine frame in welded construction with ground and hardened prism guides for the traveling column, unit head and consoles
Traveling column in gantry design
Rack and pinion drive, helical gears, in the X and Y directions
Ball screws in the Z direction for precise positioning

Technical specifications:
The technical specifications refer to the DYNESTIC 7521 - 20.6
Please refer to the corresponding data sheets.
Machining dimensions:
Max. workpiece size for milling
X = 6250 mm
Y = 2100 mm
Max. travel distances
X = 7360 mm
Y = 2720 mm
Z = 325 mm
Max. overhead height of DYNESTIC table
Z = 1st stage 318 mm / 2nd stage 418 mm
from table top edge (without tool, without fixture)
Maximum programmable speed
Vector speed: 128.0 m/min
X = 80 m/min, Y = 100 m/min, Z = 25 m/min
4-stage extraction hood
with pneumatic height adjustment and viewing window
Voltage: 400 V, 50/60 Hz

CONTROL:
Dual-core processor
Operating system: Windows XP
80 GB hard drive / 1 GB RAM
RJ45 network connection 10/100 Base-T Fast Ethernet
US keyboard and Microsoft Intel® Eye® e mouse (optical)
CD-ROM/CD-RW drive (CD burner)
Remote maintenance
Integrated network card for transferring control and program data.
Data is transferred via a high-speed internet connection.
Requirement: High-speed internet connection on the machine.
DYNESTIC Table
Fixed, continuous machining table with grid divisions, continuous grooves in the X and Y directions,
50 mm groove spacing with 25 meters of sealing cord for clamping the wear plate
1 machining area with stop bars / stop
Height 30 mm, pneumatically lowerable
2 stop bars each in the Y direction and 1 stop in the X direction on the right (viewed from the front edge of the machine)
Vacuum fields
1-circuit vacuum system
Drill unit 7976, 24 spindles
Drive power 3.0 kW
18 vertical spindles individually accessible
L-shaped arrangement, 10 in the X direction and 8 in the Y direction 32 mm grid
Max. drill diameter: 35 mm
Total drill length: 70 mm from the screw-on end (depending on panel thickness)
Spindle extension stroke: 70 mm
Direction of rotation: clockwise / anticlockwise Reversible rotation alternately n(max.) 1000 - 5710 rpm continuously adjustable
Mounting: M 10 thread - 11 mm snug fit
No tools required, no mount
6 horizontal spindles
2 double drilling spindles in X direction
(distance 32 mm between 1st and 2nd horizontal drilling spindle)
1 double drilling spindle in Y direction
Mounting: M 10 thread, 11 mm snug fit
Total drill length max. 70 mm from screw end
No tools required, no mount

Free space 1 for:
Optional double drilling spindle in X direction or Vertical adapter with double feed force
Free space 2 for:
Optional saw in X direction or Vertical adapter with double feed force
Milling unit 7831, 2-stage
Power: 11.0 kW (S6) n(max.) = 1000 - 24,000 rpm continuously variable, two-stage pre-feed stroke
Max. performance at 12,000 rpm to 24,000 rpm
Air-cooled
With HSK-F 63 tool holder
With right-hand threaded nut (for right-handed tools)
With collet chuck with HSK shank
Ceramic ball bearings (hybrid bearings)
Tool weight max. 6 kg (including holder)
Tools: Milling and grinding tools max. Ø 160 mm
Fixed adapter for interchangeable units
Safety enclosure according to CE standards
Safety fence on the sides and rear
250 m³/h dry-running vacuum pump
Personnel safety via light barriers in the front of the machine
Handheld control unit for remote control of the machine

With the following operating functions:
> Start/stop of the machining program
> Speed ​​control of the machining cycles
> Reset button
> Manual feed/rapid traverse for all axes
> Emergency Stop
Manual lubrication
for all linear guides in the X, Y, and Z directions,
for all ball screws in the Y and Z directions,
for all milling spindle guides,
for tool changer guides
Heat exchanger
for control cabinet cooling up to 35°C ambient temperature
17" TFT flat screen, rotatable and tiltable
Dustproof housing, anti-reflective glass
Control cabinet on the machine side including speed monitoring 502 67 13 with safety shutdown for all installed milling units
Monitoring of the target speed and the maximum permissible tool speed according to the tool management system
USB port
For data backup or for directly loading machining programs on the control panel.
CAMPUS Software