FIVE-AXIS MACHINING SUPPLEMENT
Simultaneous turning
capability on a 5-axis machining centre
GF Machining Solutions ( www.is.gd/zuredi ) has
introduced the gantry-type Mikron MILL P 800 U ST
machining centre, which integrates milling and turning
in a single machine, to its machine tool portfolio. The
compact unit has 800 mm of X-axis travel, a 500 by
730 mm table, an 800 rpm C-axis rotation speed and a
maximum table load of 800 kg. The machine’s small
footprint makes it easy to integrate into facilities
where space is at a premium, being able to replace
two machines, the company says.
The combination of milling and turning technology in
a single machine helps manufacturers improve
productivity, accuracy and cost effectiveness, while the
MILL P 800 U ST achieves perfect workpiece
roundness, superior surface nishes and high material
removal rates, says GF Machining Solutions.
The 5-axis simultaneous MILL P 800 U ST is also
capable of four-axis simultaneous turning, a capability
often required by customers that need to have the
cutting tool positioned at a 90° angle to the workpiece
surface to avoid tool shape errors. The machine
incorporates a 20,000 rpm HSK A63 spindle – the
industry’s fastest for a milling and turning machine of
this size, the company claims.
Additionally, water-cooled torque motors on the A and
C axes ensure accuracy and stability, while speed is
enhanced through the axes’ 0.3-second clamp time in
any position.
With the new machine’s gantry concept, the
workpiece on the 500 by 730 mm table is fully
accessible, without rotating the table. This eliminates
errors related to table rotation and avoids the need for
hand polishing. The toolchanger for the machine is also
located so as to avoid moving the table during tool
changes.
GF Machining Solutions’ Machine and Spindle
Protection (MSP) facility adds security to the machining
process by protecting the machine and spindle against
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crashing during set-up and machining. As the only
system on the market to offer protection in all
directions, MSP eliminates spindle damage, misaligned
machine geometry, downtime and costs related to
unexpected spindle crashes.
The MILL P 800 U ST is automation-ready and
equipped with pallet changers for two, seven, nine or
12 pallets. Supplied with either a Heidenhain or
Siemens control, it can hold up 215 tools in its ATC.
The machine can also be easily integrated into existing
automation systems, including System 3R automation
solutions.
Grob introduces accessible
3+2-axis machining range
Grob Systems’ ( www.is.gd/arotob ) Access Series
5-axis machining centres are said to promise the best
machining quality for individual and series production
while offering a cost-conscious entry into Grob
technology.
Typical applications for the Access Series include
3+2-axis machining and volume cutting (structural
components) in the aerospace, automotive, pump and
valve, mechanical engineering and subcontracting.
Built in the USA, the Access Series machines
includes the basic models G350a (600 by 770 by 805
in X, Y and Z) and G550a (800 by 950 by
1,020 mm in X, Y and Z), which are backed by
Grob’s more than 90 years’ experience.
Both models include a rigid horizontal
spindle axis optimally positioned close to the
operating point to guarantee maximum
accuracy and precision. This combination, with the
unique upside-down machining, offers excellent
chip fall and reduces the heat load in the
The gantrytype
Mikron
MILL P 800 U
ST machining
centre, which
integrates
milling and
turning in a
single machine
www.machinery.co.uk | MachineryMagazine | @MachineryTweets | September 2020 45
/zuredi
/arotob
/www.machinery.co.uk