Zdas CYX5 Food processing presses

ZDAS Food-processing Presses
To be able to process food with high pressure, a tećhnology was developed ensuring good preservation of food quality. This technology
prolongs food shelf life, preserves sensory and nutritive properties, vitamins and antimutagenic properties and finds its uše in the phar-
macy, a5 well.
The equipment consists of a high-pressure cylindrical chámber, into whićh a container with food is inserted. After having ćlosed the top
cover, the chamber runs into a closed frame and after the pressurizing the food is exposed to high-pressure environment for necessary
period of time. The equipment is protected bý several independent elements and material fully complies with all food processing stan-
dards.
Basic technicai parameters
cYX 6/0103 CYX 6/0308 CYX 6/0310 cYX 6/0408 cYX 6/0410
Working pressure MPa 600 600 600 600 600
Workspace diameter mm 70 300 300 400 400
Workspace depth mm 320 800 1000 500 1000
Power input kW 7,5 60 60 60 60
Pressurizing time min. 0,5 3 3,5 5 6
Workspace volume dm 1,2 56 70 100 125
Reference
The presses designed to process the food with omnidirectional
pressure have been supplied to the Food Research lnstitute Prague
and to the company Beskyd Fryčovice in the Czech Republic.
Accessoríes Tool change system - used to reduce a physical hard work
neccessary for manual tool change, to reduce the change time
and particularly to ensure safety of work in tool changing.
Semí-automatíc tool change system - used for small tool
change. The tool clamped in the working space by hydraulic
clamps is unclamped by push button in changing and the
clamps aгe removed manually. Then the tool on the T-bar is
hydraulícally lifted and manually pushed towards the suspension
or swivel brackets of the press.
Automatíc tool change system - used for bigger and heavier tools. After finishíng the pressíng operatíon when the press is swítched to the mode Tool change , the whole change cycle ís performed quíte automatically. After unclamping and hydraulic lifting, the tool set of tools is pushed by means of motor out of the press and placed either on the brackets or travelling table. in the reverse sequence, the tool ready for use is moved from the other table into the working space of the press.
Presses can also be equipped with travelling tables which move on rails during tool chaning and carry the tools in the required dírection.
Lower holder - ejector - used to hold a stamping during dra-
wing and to push it out of the tool lower part. The holder-ejector
ís located in the press frame under the table plate. For presses
of TP series, it is located under each working positíon.
Upper holder - ejector - used to hold a stamping during 
OHSAS 18001:1999 wing and to push it out of the tool upper part.
Tool clamps on the slíde and table - used for quick and
safe clamping of tools
3D Transfer Feeders
They are used most often along with transfer presses or for progressive pressing at several individual presses.
Transfer feeders are electronically controlled and electrically driven. Transfer motion is performed in three axes and the stampíng is taken away, transferred and loaded between individual working positions.
Feeders
Used to exactly feed the material into the forming tool.
Available in the spring collet and roller versions.
Blank loaders case of technological requirement, havíng a blank as the input material, the blank loader ís suitable mechanizatíon equipment. Blanks placed in stacks are taken by the magnet or vacuum-cup and loaded mostly
in combination wíth the transfer feeder into the first workíng posítion of the press.
Decoílers
Designed to decoil the strip of sheet inwards the Líne.
The decoílers together with other mechanization equipment form the automated forming workplace. Accordíng to the structural design they can be dívided into sínglemandrel decoilers with coi1-car and double-mandrelones.
Levellers
Desígned to level the íncoming material. According tothe structural design they can be dívided into: the materíal in the press cycle into the tool

ŽĎAS realízed Iines examples
SteeL Cyiinder Making Line
The steel pressure cylinder making line ranks among the special equipment made at ŽĎAS, a. s. it consists of the 18 MN vertical piercing press
and 2,5 MN horizontal drawing press. The presses are designed for hot making pressure cylinder blanks and compared to the common presses,
big demands are placed on them especially in light of value of working strokes, working speed and pressing accuracy. The pressing line con-
sists of the reheating furnace, descaler, piercing press, drawing presses, hydraulic drive, robot, lubricating device, electrical package and other
supplementary equípment and accessories. The line makes pressure cylinders of various sizes.
Line wíth the CKQ 1000/335 Two-station Press
At the line entry, the reheated blanks are loaded into the CKAS
400 press by means of the manipulator. Here, the blank is upset. From the CKAS 400 press, the blank is loaded by themanipulator into the second station - piercing. The piercing is done in the CKQ 1000/335 press. it is a combined piercing and drawing press. After having been pierced, the blank is gripped by the manipulator and loaded into the last station - drawing.
The pressing is placed on the chute being an exit of the Line. The tools are lubricated using the equipment from the company Acheson. The presses are driven from the central accumulator station running on water emulsion as working liquid.

Line with the CYAA Press
The CYAA 1800 hydraulic press is a part of the production line
intended to make plastic covers of car bottoms. The lechriology of
this type requests high accuracy of slide paraLLeLism against the
bolster during pressing. Therefore the press is provided with the slide
motion synchronization by four synchronizing cylinders. in addition
to the press, the production line consists of the plastificator. in the
plastificator, a mixture of plastic and glass fibres is created being
transported along the conveyer to the press then. The blank is loaded
manually by the operator. The plastificator enables to make the
mixture even of recycled material. After having loaded the plastic
into the tool, the preśsing itself is carried out. The plastic is cooled
in the tool. After having been pressed, the product is removed and
further finished.

Lines with the CYAB Presses
1n 2002, ŽĎAS supplied to the company Benteler CR, k. s. Chrastava a pair of CYAB 400 presses. The presses serve as parts of the production line to hot form hígh-strength stiffeners. The entry part consists of two frames to load single-purpose pallets of entry material - sheet-steel blanks. The blanks are taken away from the pallets by robot and loaded into the stamping device. After having stamped the needed data, the blankś are placed onto the entry conveyer of the furnace. After having been reheated, the blanks aгe loaded by robot into the CYAB 400 presses. Heгe, the pressing ítself takes place. After the stiffener has been pressed, the blanks aгe taken
away and loaded into a pallet or piercing press. The blanks can be
loaded into both presses or each of the presses can work separately.

iп 2005, ŽĎAS supplied to the company Benteler Automotive Rumburk the CYAB 800 hydraulic press as a part of the production line to hot form high-strength stiffeners. The entry part consists of two safety stations serving to load single-purpose pallets of entry material. The blanks are taken away by the entry robot and loaded into the stamping device. From the stamping device, they are placed onto the entry conveyer to the furnace. After having been reheated, the blanks are taken away by the manipulator and loaded into the  if press. After having been pressed, the pressings are taken away b 
robot and placed onto the belt convyers or directly into the airblast machine. The whole 1ine is automated. The line also includes a park of grabs of the take-away robot.

Reconstruction
of Hydraulic Presses
Sectional repairs and general overhauls of the hydraulic pressesare mostly induced by costly maintenance of the existing equipment, its low capacity and high requirements for operational ecology. Based on these facts, these presses are mostly subjected to general overhauls that include:
- repair of active mechanical parts of the presses working cylinders, slide, guide on the frame, table
- replacement of all seals
- new electronic system with all fault díagnostics and single operation programmíng
- reconstruction and renewal of the hydraulic systems
Basic elements of the reconstructíons and renewals of the hydraulic systems:
- hydraulic control manifolds built on the basis of common catalogue components or using built-in and built-on logic proportiona valves
- pump units of various versions and sizes for working pressures up to 40 MPa
- tanks and low-pressure vessels with complete accessories includíng visual electric level meters and automatic level control for one or two tanks
- optimised recharging of high-pressure liquid accumulators
- high-pressure hand- and hydraulically-operated valves
- complete low-pressure and high-pressure píping systems
Testing laboratory of ŽĎAS,  ís in possession of an internationally recognized certified quality system according to ČSN EN
IS0 9001:2000 and carríes out press parameters measurement and checking. Each measurement is completed by a report. 
Workstations ZIiAXCAx
Today, íf a company wants to keep up wíth the worldstandard of advance productíon components development, it must ínvest, besídes the professional manpower, ínto the equípment enabling the qualified specia-
lísts to incorporate their inventions and ideas to the drawing and other documentation and thus up to the production shops as quíckly as possible.
The joínt stock company ŽĎAS has come up to this measure as far back as at the beginning of the 90h.
Graphics workstations have been established according to the needs of the design engineers and the requirements of the customers for the CAD documentation. At present, the company is equipped with 60 CAx workstations 30 software NX and 75 workstatíons software AutoCAD Mechanícal. Orders from the field of the automotive industry have required purchase of the software Catia with 4 workstations in the field of productíon and desígn of tooling.
The workstations with the NX system are interconnected. It is possible to cooperate with the software for castings hardening Magma, eventually machine theв components in the numerically controlled machines while the program ís generated ín the software NX CAM or WorkNC, as necessary.
A11 the workstatíons are connected to the central network, the file servers are created and the associated data sharíng ís allowed.
Calculations are performed by the department of Technical Calculations in the software MSC Maгc.The electrical connecting diagrams are desígned
in the software AutoCAD with the extension ECS CAD.
CYAB 800 Press frame

тool-makíng
Automotive industry
Successful reference deliveries of dies for the leading European automobile
manufacturers have proven the abilities of the engineers and workers of
ŽĎAs Tooling department and have allowed the entry into this high-speciali-
zed field of production, as well.
In addition to tooling for smaller types of stampings, the complete equip-
ment of forming lines for the most complicated parts of car bodies is in
particular concerned.
Progressive forming
The joint stock company ŽĎAs ranks among prestigious European for-
ming machine suppliers. Among others, the supplies of automatic transfer
presses for the manufacture of parts for the automotive, consumer and
electrical industries are concerned. The shape intricacy of stampings and
a high number of manufacturing operations require the utilízation of brain-
ware in making the appropriate tools.
Consumer industry
At present more than 30 of parts are manufactured by forming in this
branch and this per cent proportion is supposed to be increased in the
future. This provides a sufficient space for the development of stamping
shops and their partners, forming-tool-makers. ŽĎAs, references
cover a wide range of products, as from satellite dish bodies through the
parts for domestic applïances up to various components for the building
industry.
special Tools
The tool shop has gained a lot of experience also in making of tools for
solid and special forming. The product range is completed with prototype
tools, measuring and control master jigs. Checking on the 30 measuring
workplace ensures the accuracy of jigs.
Reference
Automotive industry tooling - ŠKODA AUTO mladá Boleslav, Czech Republic
Automotive industry progressíve dies - SCHULER Cartec Göppingen, Germany
Europallet moulds - HASELBECK Deggendorf, Germany
Consumer industry tools - Mü11er Weingarten Werkzeuge, Germany, Polynorm Grau, Germany
Set of pressing tools - GED1A Attendorn, Germany
ngineering roduction