BAND SAW MACHINES

Band saw machine is made for heavy industry, especially where it is difficult to manipulate with material due to it’s size and weight.

Control systém:
Machine is equipped with an electronic system MAHLER. A control system of machine displays a working states as blade speed, cutting feed and a state of single working movements. A part of a system are also inputs and outputs for connection of an above-standard accessories.
Cutting feed rate is regulated by hydraulic throttle valve leaded by servomotor enabling very precise feed rate. The operator sets in the program needed feed rate (mm/min) and the machine will set it up. In this way there are no external factors influencing cutting feed like temperature (viscosity) of hydraulic oil. Two basic regimes of automatic system regulation (ASR): ARP a RZP.
RZP= System allows to set the optimal cutting feed rate depending on material band position. Cutting feed rate is regulated on begining and end of cut. It is suitable for using of carbide blades.
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.
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.
CARBIDE mode is suitable for cutting of full bars. If the blade is excessive loaded is the cutting feed reduced on 50 % and cut is finished by this speed.

Construction:
The machine is constructionaly designed in that way, so that it corresponds to extreme exertions in productive conditions.
The arm of machine with columns situated as near the clamping vice as possible minimizes vibrations and enables max. cutting performance.
The arm of the machine is robust, heavy weldment and it is designed so that a toughtness and a precision of cut was ensured.
The robust steel pulleys sloped of 25 degrees regarding the level of the cut. Thanks to sloped arm the twist of the blade is eliminated and these is possibility to bring the blade closer to the minimal distance from the linear leading on columns. This arrangement eliminates vibrations and enables the max. cutting performance of the machine.
Arm of machine has a an incremental sensor for a measuring of a position above material and there is also end-stop for setting of bottom position. Upper cutting position of frame is detected automaticaly using control system after setting of the size parameters of cutted material.
The machine has not any vice.
Clamping table has got its own drive – motor with frequency converter. Tabel is with T-grooves for clamping of cutted material.
Movements of clamping table along linear leadings in one level. Drive ensures rack and cog wheels.
Clapms for cutted material clamping aren´t standard, there are customized in all cases.

Basic equipment of machine:
The blade leading in guides with hardmetal plates and leading bearings and along cast iron pulleys.
Independent moving of both guides.
Machine has hydraulic band tightening.
Automatic indication of blade tension.
Option. It enaqbles of cutting in two levels thanks-to specialized placement of guides –position for horizontal direction: arm is fixed, cut ensures the clamping table – guides are twisted to 90degrees in comparation with standard position. Positin for vertical cuts: guides are in standard position, clamping table is fixed, cut enables of the arm. All positions are controled by measuring and control system. This option is possible to order during the production of new machine only, not additionaly.
A cleaning brush is driven by an electroengine and ensures perfect cleaning of a blade.
There is a planet gear box drive and a three-phase electroengine, a fluent regulation of a blade speed by a frequency converter for a fluent change of blade speed.
The cooling system for emulsion, leaded to the guides of the blade and by LocLine system directly to the cut groove.
Indication of blade tightening and opening of the cover.
Controlling 24 V.
Maschine is equipped with hydraulic system which controles all functions of that maschine. It pushes the arm to cut, pulls up the arm and opens and closes vices.

Basic equipment of machine:
Chip extractor
Lighting of workink space.
Band saw blade.
Set of spanners for common service.
Manual instructions in eletronic form (CD).

Operating cycle:
Operator handles with portal – put the cutted material, start the machine. It will cut by set speed, the end swith stops it in bottom position and arm will move up to set position.