Fast, precise, powerful
CNC multi-spindle automatics of the PC series

02 | Schütte PC SeriesCompact design:
hydraulic endworking slide feed unit withlinear measuring system and control valve

Material removal area of a six-spindle
automatic of the PC seriesSchütte PC Series PC | 03

Ready-to-install precision
with diameter up to 51 mm
You are machining complex parts made of non-ferrous metal or steel?
Do you require a combination of heavy roughing and accuracy?
Do you wish to combine several production processes on a single machine?
Do you require versatility combined with simple programming?
Automatics in the PC series are machining centres and are used whenever classic cam-controlled automatics
reach their limits. Their range of functions goes far beyond that of turning. Tapping, mill cutting, polygon turningand eccentric drilling operations make complete machining of geometrically complex workpieces possible. Six oreight work spindles, endworking and cross slides that can be controlled independently of one another as well
as rear-side machining with up to three tools are standard. The Schütte programming system SICS 2000
can be used for simple control of more than 56 axes.
PC multi-spindle automatics are designed for material removal of geometrically sophisticated parts made of hardsolid materials. Wide gashes and complex drilling operations are part of your daily production operations. The
machines are designed to be robust, durable and technically flexible. They provide ready-to-install precision partsin small and large batch sizes. Main and non-production times are short and cost-effective; conversion times to
new parts are short.
Machines in the PC series are used by automobile manufacturers and suppliers, in the fittings, pneumatics andhydraulics sector and in job order production of precision parts.

• Free falling chips, no chip blockage• Depending on the version, six or (upon request) eight
workpiece spindles that can be controlled independently of
one another• Each workpiece spindle has its own endworking and crossslide feed units with direct measuring system• Rear-side machining with up to three tools• Short setup, non-production and part-production times• Over 56 CNC axes can be programmed easily

PC series – Versatile, precise and economic

04 | Schütte PC SeriesEndworking slide blockof the multi-spindle automatics of the PC series

Cooling lubricant treatment system withfull-flow filter and cooling (optional)

Schütte PC Series PC | 05

Solid machine construction
as the basis
All efficient performances need a foundation. For the integration ofdifferent processes, for the removal of tough materials, for speed,precision and reliable processes, this is provided by a robust machine
structure. The modular and flexible Schütte concept is based on over
100 years of experience in machine tool construction.
The machine base and headstock made of mineral casting guarantee
damping and thermal stability that are required for high-quality workpiecesurfaces and long tool lives.
The spindle drum of the PC multi-spindle automatic is locked by means ofa hydraulically actuated, three-piece Hirth coupling. The positive locking of
the drum ensures stability and high repeat accuracy.
The hydraulic system and (upon request) the cooling lubricant are cooledactively. The machine therefore works even with large material removal
volumes at a constant temperature. This results in constantly high production­accuracy even with highly complex material removal tasks.
Spindle drum with Hirth coupling,locked in the headstock• Robust basic structure thanks to tried-and-tested frame construction• Base and headstock made of mineral casting guarantee high damping
and thermal stability• Optimum endworking slide guidance up to the material removal point
thanks to the Schütte block: The force flows directly through the spindlecentre• Positioning of the spindle drum by three-piece Hirth coupling rings• Cooling of hydraulics and cooling lubricants (option)
Headstock with cross slide and spindle drumFoundation for precision and process reliability

06 | Schütte PC Series

Drives for controlled
speeds in selected positions

central drive
speed-controlled single spindle driveSchütte PC Series PC | 07

Drive power meets
economy requirement
The effectiveness of a means of production depends essentially on how well
the technologies used interact with one another. Schütte has developed adrive concept for the PC multi-spindle automatics that meets the requirementsof both high-performance production as well as energy efficiency.
A powerful central drive provides the exact amount of power for each spindle thatit needs for recess or plain turning operations.
The production of large bores with high feed forces and torques is also no problem
for the powerful spindle and feed drives.
If technologically optimised workpiece speeds that deviate from thebasic speed are required, speed-controlled individual spindle drives canbe cut in (option). At low additional costs, they make independent
speed-controlled operation of each spindle possible.

• Central drive with high torque• Individual spindle drives that can be cut infor position-specific speed selection• Freely programmable speed progression• Optimisation of material removal and­part-production time

CNC-controlled polygon turning device with direct drive

Modular spindle concept, cost-effective production

08 | Schütte PC Series
Application example: variable
tool drive in spindle position 6

Layout diagram ofvariable tool drives

digital tool drives
drive alternative via change gears

DCAB

Schütte PC Series PC | 09

The matching speed
for every process
The speed of the tool spindle can be selected independently andvaried in the process: Its operation is thus optimised. For special
requirements, the drive shaft of the tool spindles can be shut down
(option).
The drive is backlash-free via toothed belts. Thanks to the precise control of speeds andfeed, tapping is possible without a compensating chuck. As an alternative, the tool drives
can also be tapped by the central drive via change gears.
Typical applications include thread production with taps, formers and dies in an interpolatory group with the longitudinal feed axis, opposed spindle drive with freely programmablespeed and control drive for auxiliary devices.

• Individual speed-controlled drive of tool spindles(option)• Cost-effective drive alternative from central drive
via change gears

Opposed spindle for picking up the workpiece from the main
spindle and for rear-side machining with precision chuck

Absolutely precise technological data

010 | Schütte PC Series
Precision and processreliability with complex
components: Cross slide
unit with standard
replaceable holder

Drive box with hydraulicendworking slide feed units andlinear measuring systems

Schütte PC Series PC | 011

Safe handling ofworkpiece and tool
All spindle, feed and switch drives of the multi-spindle­automatics in the PC series are controlled digitally. The­control quality guarantees high contour trueness during
copy turning and high quality of surfaces cut with a blade.
Excellent damping of the machines improves the control loop behaviour in dynamic processes. The high force density make compact machine construction
possible. In the event of a crash, the hydraulic feed drives are overload-proof.
The quick-change system SWS 400 for the turning tools reduces the non-production times. Already perfectly tested on multi-spindle automatics, the SWS
400 makes presetting of tools outside the machine possible. High accuracy ofrepeatability is guaranteed.

Quick-change system SWS 400• Direct, high-resolution measuring system• Interface to quick-change system SWS 400 for lathe tool
• HSK interface for drilling tools• Compact, powerful hydraulic feed drives• Integrated handling and discharge device (option)• Damage-free and aligned discharge of workpieces

Quick-change system SWS 400

Flexibility that guarantees your competitive advantage

012 | Schütte PC Series

The compound slides, which can be installedon all endworking and cross slides, create
any kind of interior and exterior contours
you desire using simple, standard tools.

Schütte PC Series PC | 013

Complex contours
The cross slides in the PC series also make complex contours possible. They
can be attached in all endworking and cross positions on the automatics. Thecontour elements on the part are produced with standard tools with highcontour trueness and accuracy.
Typical application fields for compound slide machining are contour
turning and thread chasing. Any rotationally symmetrical contours,e.g. tapers, spherical shapes, undercuts and radius transitions canbe produced with internal or external contours.
Compound slides are also used in conjunction with driven devices,e.g. for polygon turning, during plain turning, mill cutting oreccentric drilling.
Compound slides can be positioned conveniently via
the control system. This helps during conversion, or witha tool correction, or even when changing a lathe cutter
or attachments.

Cross slide unit for rear-side machining with a fixed and driven tool

• Up to 15 CNC compound slides per machine type
• CNC compound slide functions also for the rear side of the workpiece• Simple and convenient to install and retrofit• CNC compound slides form the basis for attachments, stationary or
driven and for the tool holder systems• Any type of outer and inner contours with simple standard cutting
tools• Hydrodynamic flat guides for the compound slides (cross)• Hydrodynamic recessed guides for the compound slides (endworking)Compound slides for complex geometries

014 | Schütte PC Series
Drilling attachment with adjustable eccentricity
from 0 mm to 26 mm and HSK interface

Schütte PC Series PC | 015

Can be retrofitted at any
time for additional tasks
Complete machining often requires the combination of different ­production
processes. The machining of tough and high-strength materials requires­perfected, flexible material removal technology. Drives, tool and auxiliary
equipment are configured to fully meet the requirements of the customer. Themachine can be retrofitted at any time if the application range is extended.
An extensive range of attachments are available for the PC series for equipping the machine tomatch the machining task. This includes• CNC opposed spindle with precision chuck• Drill spindles1), endworking, with HSK interface• Drilling attachment1) with adjustable eccentricity from 0 mm to 26 mm and HSK interface
either driven via a gear set or the variable tool drive• Polygon turning attachment with controllable drive• Milling attachment with end mill for slot-milling• Presettable tool system SWS 400• Workpiece pick-up device for damage-free workpiece removal• Tapping or thread rolling attachment, axial or radial, and powerful drives with high torqueand programmable speed progression• Y-axis with CNC range of functions and with up to two driven tools.

• Cross drilling attachment1) also suitablefor eccentric drilling and mill cutting.

1)

Internal coolant supply upon request

Further machining options upon request

016 | Schütte PC Series
A swivellable flat screen on both operatorsides of the machine provides the ­operating
elements where they are needed.

Menu screen "Position ­configuration":
spindle drives and slides are selected
and programmed.

DIN-ISO programming with­supplementary program masks

Programming of virtual cams withpreconfigured cam types: Only afew parameters have to be entered.

Schütte PC Series PC | 017

Programming in practicefor practical people
The control of 56 and more axes requires perfected hardware and control engineering.
In particular when handling and programming is not to be left to specialists alone.
The hardware basis is a fast industrial PC that co-ordinates all machine functions and thus provides the precondition for
expansion as a decentralised system (principle of distributed intelligence). The Profibus is used to communicate with axes,
sensors and actuators. The TwinCat operating system unites the CNC and PLC. Configuration and diagnostic tools for PLC,
servicing of axes together with the preparation for teleservice are "on board" as standard.
The technology and operator interface "SICS 2000" is designed to make typical features, such as camshaft, cam-operated
switchgroup and special machining cycles available. This is supported by a flat, user-friendly operating panel. The operator
interface "SICS 2000" is arranged according to operating modes and operator control areas and tuned to the special requirements of a multi-spindle automatic. Interrelated processes are also grouped together in the respective menus. Programmingand optimisation can be selected position-specifically according to the technological sequence and can be carried out witha high level of support for the user.
A series of cycles with corresponding visualisation of the movement sequence and query of the input parameters are available
for preparation of the machining programs. Users can prepare their machining program in the typical DIN-ISO programming
language or combine both languages.
Upon completion, the cycle times of the individual positions can be presented in the graphical movement sequence.

decentralised
modules, among
otherdezentralehydraulicHydraulikmodule
u.a. für:things,for:
Längs- und Querschlitteneinheiten,
EndworkingundandVorschub,cross slide units
Spannung
Materialanschlag
Clamping and feed, material stop
DPMC
ProfiDPMC
busnetwork
ProfibusNetzwerk• All drive elements - electric drives, main spindle drive and hydraulic slide drives are controlled axes
• 56 axes (more as an option) can be programmed with "SICS 2000"• All machine axes are co-ordinated via a central computer.
• A Profibus system connects the control system, drive controller and control panel• T he programming system guarantees simple and reliable programming• Machine and program analysis per online service

Machine control system with distributed intelligence018 | Schütte PC Series	Machine

A 36 PC

S 36 PC

S 51 PC	Maximum bar diameternormal, round
SquareHexagonmmmm
mm362530362530513644	Bar length, max.	Spindle circle diameter	Material feed rate, max.

mmm
mm

4358
115

4300
115

4.2
340
140

Endworking slide traverse (position)
Endworking slide traverse (position)
max. speed
max. feed force

mmmmm/minN

145 (I...VI, VIII)
250 (VII)
254500145 (I...V)250 (VI)
254500175 (I...V)280 (VI)
258000	Slide traverse for rear-side machiningmm

130

130

130mmm/min
N

14
145
25450010145
25450010175
258000m/minN

80 (I, II)
70 (III...VIII)
60 (I...VIII)
20450090 (I...V)70 (VI)
60 (I...V35 (VI)
204500100 (I...V)70 (VI)
60 (I...V)35 (VI)
20
6000	Spindle speed (stepless)rpm

560...4000

560...4000

335…3000

Non-production time, normal	Power rating of drive motors

1.2

1.2

1.5

kW

28

28

28mm
mmmm

5830
1900
2580

5780
1576
2400

5900
1766
2550

approx. kg

8500

7500

9300	Endworking slides	Additional feeds
Number of additional feeds
Auxiliary longitudinal feed traverse
max. speed
max. feed force

Cross slides
Cross slide traverse (position)
Cross slide traverse (position)
Centre height (position)
max. speed
max. feed forcemmmm
mm	Dimensions
LengthWidth
Height	Transport weight of machineSchütte PC Series PC | 019

Technical data

CNC multi-spindle automatics – PC seriesAlfred H. Schütte
Postfach 910752
51077 Köln-Poll
Alfred-Schütte-Allee 76
51105 Köln-Poll
Telephone +49 (0)221 8399-0
Fax+49 (0)221 8399-422
schuette@schuette.dePC series

www.schuette.de

Subject to changes without prior notice. Reprinting permitted subject to quoting source and prior agreement.
AP 08.13 • 500 • A 958b eng