PEGAS 500x750 HORIZONTAL X-NC-BS Quick Start Manual

500x750 HORIZONTAL X-NC-BS
Change:
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Od 3/2018 - rotating of turntable is ensured by using hydr. cylinde and the linear leading
500x750 HORIZONTAL X-NC-BS (version 3)
It is a highly efficient automatic hydraulically controlled band-saw with multiple material feed.
The band saw machine is designed for cutting in semiautomatic cycle perpendicularly as well as angularly.
cuts to the left (60 grades) and to the right (60 grades).
The band saw machine suitable for cutting of steel constructions and profiles with a longstep feeder L=2000mm. The machine
is constructed for automatic cutting of long bars. Whenn the machine is cutting Automatic programm with angle cuts and with
lenghts shorter thann (500mm), the machine automatically interrupts the automatic cycle and is waiting.
It is suitable for serial production and thanks to its robust construction enables to cut wide range of materials including stainless
steels and tool steels both profiles and full materials.

Control system:

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Machine is equiped with programmable PLC SiEMENS SIMATIC S7-1200. Drive of band blade, movement of arm and
movement of feeder are completely controlled and drive by SIEMENS technology.
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Colored touch display – HMI SIEMENS TP 700 COMFORT enable easy comunication with operator.
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The machine enables to work with two modes:
o SEMIAUTOMATIC CYCLE: The machine cuts the material immediatelly in a semiautomatic mode. The operator
uses the feeder of the machine for the manipulation with the material and for the exact feed of the material into the
cutting zone. The movement of the feeder is realized by manual buttons or by GTO function. After starting GTO
function the operator sets the position of the feeder, presses START GTO button and feeder goes to the set
position.
o AUTOMATIC CYCLE: the feeder feeds the material according to the set programm. The operator sets the cutting
programm, machine realizes these programms, it is possible to make thousand different programms.The part of
one programm is a complete setting of the cut: blade speed, feed speed, setting of an automatic regulation,
setting of the hight of the bar to be cut, setting of the lenght of the bar, angles values and number of pieces. The
lenght and number of pieces it is possible to set in 20 lines, the machine feeds differently set lenghts
automatically.
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Regulation of cutting feed is realized by controlled system by the servo-motor and throttle valve of hydraulic. Then is
reached very precise cutting feed. Operator will input into program requiered cutting feed (mm/min) and bandsaw this
cutting feed precisely set.
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Two basic regimes of automatic system regulation (ASR): ARP a RZP.
o RZP = Zone regulation. System enable to cut material in 5 zones, because of setting optional cutting feed and
blade speed according on blade position. Operator can choose from 2 strategy settings: DEFENSIVE setting is
approppriate for cutting very hard materials with use of carbide band blade. Cutting feed is in beginning and in the
end reduced. OFENSIVE settings supports executive cutting logs. Cutting feed and band speed are in the
beginning and in the end of cut increased. It´s about similar principle as ARP mode. Advantage is regulation of
blade speed.
o ARP = System of the automatic regulation of the cutting feed rate depending on the cutting resistance of the
material or blunting the blade. Systém offers two basic modes of ARP: BIMETAL and CARBIDE.
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BIMETAL mode is suitable for optimalization of the cutting feed when cutting profiles by bimetal blades.
The cutting feed is higher if the blade cuts sides of the profile. As the blade reaches the full material, the
system reduces the cutting feed automatically so that teeth gap of the blade would not be filled.
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CARBIDE mode is suitable for cutting of full bars. If the blade is old (blunt), loaded is the cutting feed
reduced Reaction time is slower than in mode BIMETAL.
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RTO function (rotate to position) with automatic setting of needed angle arm position
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The ergonomical control panel is mounted on the movable console and its position does not depend on the turntable
position at any angle. The control of the machine is optimalized with our control panel and the field of view is better for an
operator. The control panel is equiped with mechanical buttons and digital display of the machine control system.
Mechanical buttons controls basic saw movements (arm, vice, feeder and turntable movements) and cutting cycle start.
The safety button is present on the panel aswell. All buttons are highly resistant in anti-vandal version.
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Safety module with autodiagnostics.

Construction:

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The machine is constructionaly designed in that way, so that it corresponds to extreme exertions in productive
conditions. A robust construction of machine includes vice allows to take advantage of bimetal blades maximally.
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The arm of the machine is robust, heavy weldment and it is designed so that a toughtness and a precision of cut was
ensured.
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The arm moves along two columns using a four row linear leading with a high loading capacity. Arm movement using two
hydraulic cylinders.
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Drive pulley and tighten pulley are both metal castings.
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The arm uses sensor and magnetic tape for position evaluation above material. Upper working position of the arm is
possible to set in control system.
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Down working position is set with adjustable mechanical stop and microswitch. Down working position of the arm is also
possible to set in the saw control system. After reaching bottom working position the arm stops in the position set in the
system.
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Main vice with divided jaw that clamps the material in front of as well as behind the cut. The jaws allow a safe grip.The
optimalization of the chip movement through the fixed jaw directly to the chip extractor.
PEGAS-GONDA, s.r.o. Čs. armády 322, 684 01 Slavkov u Brna, CZECH REPUBLIC, Tel./fax.: 00420-544 221 125/-544 227 389,
TD No 183-2 – platná od 1.8.2018
E-mail: pegas@gonda.cz, www. pegas-gonda.cz
It enables angle