Zimmerman cnc portal milling machine

Zimmermann CNC Portal Milling Machine FZ 38

High Performance Milling Technology 

The Linear Machine
Three Levels of Dynamícs
With the FZ38, by using dírect travel speeds that allow also
dríves for all axes, Zimmermann faster tool change.
demonstrates its expertise ín the demanding aгea of drive Crucial wíth thís outstandíng per-
technology. formanc, however, is the achíe-
ved accuracy and surface qualíty.
inmachíning of large parts in And this is exactly where the FZ38
modern tooling, die and pattern sets new standards. The linear
making as well as the aircraft dríves ensure very high perfor-
índustry, the maximum chíp rate mance wíth a hígh Kv-factor, ena-
together with the demand for blíng a low drag distance and -ä ;.
hígh dynamic performance and hígh positíoning accuracy even at
speed is at the top of the list of rapid feed rates.
requírements.

With the FZ38, Zimmermann
presents a technically mature and 
cooling circuits íntegral linear machine, designed
and a comprehensíve
for highly dynamic operatíon of safety concepc in case
the linear drives. of power faílure
Protectíon of linear
Dynamíc level one: drives by fine
dust covers and
Hígh performance chip deflectors
The most important reason for
using línear motors is to increase
productívity. The FZ 38 achieves
extremely hígh chíp rates of up to Línear dríven Z-axis with

4500 cm3/mіп with aluminium protection 
Feed rates of up to 60 m/min in  the línear axes and spindle compensetion
speeds up to 30000 min enable genuine HSC machiníng.
The new VH 5 torque mílling CIampinri thead enables feed rates  oundatíon
in the rotary axes of up to 360 /s. VH 5 torque milling head or
Other performance alternatívely VH3/VH2 milling headscrítería besídes the reduced
acceleratíon and deceleratíon lntegrated safety guarding
ramp times are the hígher rapíd Grouted, trapezoídal side walls
wíth enlarged base
2 CNC Portal Milling Machine FZ38
Dynamic level two: A mechatroníc analysís of the .

The technícal basis whole system by Zimmermann in
The system specífíc elímínatíon of cooperatíon with external scien

the backlash and elasticity of the tífic ínstítutes specíalísíng in FEM 
drive unít is oпe of the essentíal analysis led to an ínnovatíve, precondítíons for the achíevable relíable and high performance power and accuracy values, overall solutíon. 
nevertheless, the employment of Optimised síde walls
dírect drives requíres a special The trapezoídal side walls of 
desìgn of the machine. Here FZ 38 have been calculated
Zìmmermann s wide experíence specífícally wíth the dynamics of 
ín developing structurally rigíd the línear dríves in mind. 
machines is the decísive factor. With theír large bases they offer 
optimum dampíng agaínst víbratíons from the dynamíc feeds and load changes. The side walls are filled wíth a cement like, fíbre-reínforced compound,  leadíng to hígh structural rigidity and thermal stabilíty.

Torsíon-free portal magnetic forces acting on the 
The portal is one of the outstan- machíne structure. Overhead
díng components of the FZ 38: dríves, specíally desígned chíp
Structurally ít ís extremely deflectors and compressed
rígid and able to absorb the hígh aіг barríers relíably prevent the
dynamic movements of the drives beíng hít by flyíng chips.
machíne wíthout warpíng and
at the same tíme it has been Dynamíc 1eve1 three:
so reduced in mass as to avoíd Cost-effectiveness
unnecessarily impaíríng accele- As well as the benefit of the high
ratíon. The key advantage: chip rate, the overall economic Linear dríve ín the upper X-axis.
consíderable reductíon of the advantage of the FZ 38 is a pгo-
pendulum effect. The portal runs duct of many other factors:
on double linear guides on each The hígh precísíon of the
síde and both sides are driven. machíne substantíally reduces to the non-contact dírect dríves
Zimmermann combínes decades the need for manual reworkíng whích are free of backlash and
of experíence at the forefront of fíníshed surfaces or may even wear, keepíng maintenance low
of technologícal development of eliminate ít completely. and makíng them last longer.
portal mílling machínes wíth Thanks to the hígh feed rates,
extensive process knowledge. non-productíve times such as re- Against thís background, the
Drive arrangement posítíoníng, tool oríentatíon and slíghtly íncreased ínvestment
All linear dríves are posítíoned tool changíng can be reduced. costs of a línear machine can be
іп a clever way to take optímal The avaílabílíty of the FZ 38 ís offset by hígh utilísatíon wíthin a
account of the weíght and a1ѕo very hígh. Thís ís largely due very short period.
4 CNC Portal Milling Machine FZ38
. Already today the machíne is optimally prepared for future developments in the tool industry of tomorrow Decisive for the overall cost reflectíon is naturally the possíbílíty  of complete machíníng offered  by the FZ38. Even large work pіeceѕ can Ьe completely machined on five sídes in one setup

Feedrate c. Acceleratíon Surface fínísh Noíse level Power requíremen  Safety after power Lífe cycle Crash behavíour Ease ofservíce lnvestment costs Repaír costs Cost effectíveness low utílísatíon Cost-effectíveness hígh utílisatíon The comparative statements refer to typical 2 5olved optímally for the FZ 38 wíth specially modeis and fíelds of applícatíon and designed, addítíonal safety equipment. depend on the  particuiartechnicai equipment. No guarantee is gíven for the accu- Better 1 Worse racy of these statements.

VH 5 Milling Head with Torque Drive Pure High Tech The new VH 5 millinghead represents the technícal state-of-the-art in hígh-speed machining. It is the optimum hígh tech head for the FZ 38 wíth regard to genuine, continuous símultaneous machining. Dynamícs The combínatíon of relatívely low weíght wíth torque drives enables a maximum dynamics. Hígh speed unlimited The fastest head in the materials where chips and dust extreme movements of the head Zimmermann range.

Equipped are concerned such as carbon are requíred wíthin a short space
wíth torque dríves, this Head/ fí bre. of time as ín símultaneous machí-
Machíne combínatíon achieves níng. Equipped wíth the fast VH 5
astoníshíng overall machíning Fíelds of applícatíon head and in combínatíon with
tímes. On the one hand the The VH 5 torque dríven míllíng the extremely dynamic X-, Y-, and direct machíníng tíme benefits head is ideally suíted to the linear Z-axes the FZ38 іѕ ableto achíeve from the hígh head speeds, machine FZ 38, especially where high overall speeds. on the other hand very low non-productíve times can be achieved wíth the VH 5 during approach  and wíthdrawal, reposítioníng, Features
etc. Torque dríves
Torque A-axís 650Nm
intelligent extractíon system and C-axis 700 Nm
The VH 5 is equípped with a Weight only 530kg
uníque, integrated extractíon sys- Standard spíndle wíth up to
52 kW / 45 Nm oг 24000 mírr
tem. The system ís based on ín-
NC-axís for dust extractíon
ternal extractíon. The partícular
Hydraulíc clamping of the
híghlíght ís a suctíon hood A- and C-axes
controlled by íts own NC-axís. Rotary speed A- and C-axes
Thís enables effícient extractíon of 360 / s
even with the most complicated Coolant/ MQL externally and
through the tool contours. Thís ís a great advan
Direct optícal measuríng system tage partícularly for crítical
6 CNC Porta1 Mílling Machine FZ 38
VH 3 a nd VH 2
The A11-Purpose
Milling Heads
These hígh-performance milling heads are suítable for a wíde
range of milling applícatíons on the FZ 38. all-rounders in the
best sense powerful and cost-effectíve.
Uníversal application
The VH 3 and VH 2 seríes has been specially desígned for modern 5-axís símultaneous moгe powerful spíndles can be machiníng. Hígh holding torques employed.
The míllíng head VH 3.
in the A- and C-axes ensure reliable and accurate path con- A new design
tro1. Fast drives and very strong The VH 3 and VH 2 model series hígh-performance spindles has been completely upgraded:
facílítate hígh machíníng rates Small interference contour for during HSC machíning. Precision better access.
worm and wheel dríves ensure Water-cooled worm and accuracy and dampíng. wheel dríve for higher accuracy and elimínation of thermal
Unlimíted Power ínfluences.
Torque of up to 2000 Nm is Hígher swível speeds foravaílable ín the rotary axes and fasteroverall machíning tímes.
The millíng spíndles provide Clampíng of rotary axes 
power up to 60kW or 95 Nm for for more rígidíty duríng rough
the VH 3 head and 45 kW or machining.
67 Nm for the VH 2. Thís ís more Automatíc grease relubríca- Features
than enough for all machíning tíon for long-life cycle and cost Precísion worm and wheel dríve tasks. effectíveness water-cooled
Standard spíndles wíth up to
60 kW and 95 Nm VH 3 and
VH 3 and VH 2 two models Fíelds of applícatíon 45kW or67Nm VH2
from the same family The ídeal model seríes where a Univers. hígh-performance head
The VH 2 ís based on the same wíde range of machíníng Hydraulic clampíng of the
desígn as the VH 3 but it is consi- applications needs to be covered A- and C-axes
derably lighter and smaller and Ьy one head. Today rapidly Coolant/ MQL externally and
through the tool thus has a smaller interference changíng tasks are common and
Optícal dírect measuríng system contour. The advantage of the dífficult to p1an in advance.
Grease relubrícatíon VH 3, on the other hand, ís that Wíth the extremely versatíle VH 3
and VH 2 model ranges, the FZ 38
ís perfectly prepared for all even-
tualitíes.
High dynamícs strong clampíng head for effective pro- The Z-s1lde extremely rígíd desígn
tectíon of the Z-axís ín case of power failure. whíle still light ín weight. and surface quality
Desígn Machíne frame and guíding Axis drives
The FZ 38 is a modular machine The machine bed ís made of grey lrrespective of the control concept that allows dífferent cast iron. The sìde walls, portal system used, all linear axes are work areas, milling heads and and Z-slíde are of welded steel equipped wíth the latest Siemens spindles as well as control sys- constructíon. The trapezoidal digítal linear motors. When tems to be combíned wíth each side wa11s are fílled wíth a stationary, the machíne ís kept
other. The machine has fixed side special, fibre-reínforced DemTec in positíon by brake shoes walls, a clamping table fíxed to concrete. The guides, dríves and and Y axís or clampíng heads the foundation and an overhead measuring systems of the X-, Y- Z-axís .
portal driven on both sides and Z-axes are protected against A hydraulíc counterbalance ís and movíng in the X-direction. dirt by micro-dust bellow covers. provided on the Z-axis for mass. The workpíece does not have to Problems of contamínation due compensatíon.
be moved and machíníng ís thus to the magnetísm of the 1inear The 1inear guídes aгe desígned independent of the workpiece motors have been desígned out as pre-loaded linear guídes in weíght. Constant movíng masses by províding the overhead dríves the X- Y- and Z-axes wíth up to portal, cross- and Z-slide, on the X-axis with special protec- 8 guide carriages per axis.
míllíng head lead to consistent tive shields.
dynamic behaviour, a prerequi-
site for optimal surface finísh and
for the use of linear drives.
DemTec Castings Steel
comparíson of
dífferent structural
mater als for the
síde walls based on Dampíng Rígídíty Thermal Thermal accumu-
the most ímportant conductívíty latíon capacity
functíonal crítería.
8 CNC Portal Millíng Machine FZ38
Safety concept Measuring systems Control systems
1n the event of a power faílure, The three linear axis X, Y and Z Dífferent makes and types of
the Z-slíde ís protected effectively have direct longítudinal control system can be used wíth
by strong clampíng heads and measuring systems with Heiden- the FZ38. Modern control sys-
the X- and Y-axes Ьy brake shoes. haín glass scales. The measuring tems offer such functíons as look
All axís aгe slowed down by systems are protected from dírt ahead , stíck-slip limítation,
energy recovery using the gene- Ьy a compressed air barrier. splíne interpolatíon as well as a
rator effect. The rotary axes A and C are 5-axís machiníng capacíties.
equipped with high-resolution systems for measuring and dígi-
Coolíng angular measuríng systems. talising are avaílable as optíons.
The linear drives wíth their pre- For optimum integratíon ínto
císion coolíng uníts and indívi- Accuracy your productíon envíronment,
dual cooling circuits for solenoid The machine dynamics and the you can choose from a number of and motor elements aгe effec- extremely hígh ínherent rígídíty different control systems.
tively separate from the machine. ensure high precísion, even
during finishíng at hígh speeds
and feed rates.
Brake shoes on the X. and Y-axís keep
the machine n position at standstíll.

FZ 38
Technical Data
Machíne
Working range
X-axís
Y-axis
Z-axís
Worktable size
Length
Width
Heíght
Max. worktable load
T-slots longítudínal
Dístance T-slots
Feedrates
Feedrate X- and Y-axes
Feedrate Z-axís
Acceleratíon of línear axes
Accuracy=
Positíoníng accuracy X-axís
Positioning accuracy Y-, Z-axes
Repeatabílíty X-axis
Repeatability Y-, Z-axes
Millíng head
Swível ranges
A-axis
C-axis
C-axis
Performance
Torque A-axís
Torque C-axis
Acceleration A-, C-axes
Feed rates A-, C-axes
Accuгacy2
Positíoníng accuracy A-, C-axeѕ
Repeatabílíty A-, C-axes
Axes clamping
Clampíng A-axis
Clampíng C-axis
Holdíng torque A-, C-axes
MI11íng spíndle
Power S1 max. 100 ED
Torque 51 max. 100 ED
Max. speed
Constant power range from
Tool holder
Dístance swivel axís spindle nose
Tool clamping
Tool unclampíng
Lubrícation
1 Other dímensíons oп request
2 Accordíng to VD1 / DGQ 3441
We reserve the right to make technical changes.
10 CNC Portal Milling Machine FZ38
VH 5 Mílling spindle performance diagrams Dímensíons
UniversaI spindie 52 kW Torque Md Power P


X-axís appгox. 3 000 - 10 000 mm
VH 3 milling spindle performance diagrams
Universal spindle 60 kW Torque Md Power P 

0 6000 10000 15000 22000 30000 35000 Y-axіѕ appгox. 2 500 - 3 000 mm п [min ]
VH 2 Milling spindle performance diagrams
Universal spind1e 45 kW Torque Md Power P
Md [Nm] P [kW]
t70 worktable length 3 000- 10 000 mm 200
Length approx. 7 000 - 14 000 mm
all dímensíons shown are examples of the FZ 38 іп the minimum
oг maxímum confígurations. Specíal varíatíons wíthín thís range
aгe also possible
Options 
Aír-condítíoned control cabínet Tool changer with 15 or 
Safety guards 30 positíons or more
Símultaneous A-axís Measuríng touch probe
Símultaneous C-axis Tool measuríng
Coolant system Specíal vo[tage
Minimal quantíty lubrícatíon 5pecial paíntíng
lrıternal coolant supply Chip conveyor
NC controlled extractíon hood 5tandard

Zimmermann 
High Performancc styrofoam
MiIIing Technology 


Zímmermann is synonymous A uniquely wide and fínely tuned
with CNC portal milling machines programme, íncludíng a large
oп a bíg scale. Specíalísation and number of dífferent machines
our high rate of innovation has and míllíng heads, enables you to
put our technology out in front choose the perfect machine for
worldwíde. every applícatíon, thus offering
you the ideal solutíon with regard
to qualíty and cost-effectíveness.