Operating Instructions
HBP530A-CNC
BA85308
Status 46/04
Rev 07.02.11
Page 14
4.5 Saw drive
Before starting the sawing operation, the material must be clamped through
the material gripper (point 5.4.1).
By pressing the function key “SA on/off” the sawdrive is switched on (for “saw on” 2-hand
operation). Simultaneously the coolant pump and the chip conveyer are switched on,
additional the band guides are clamped hydraulically. By pressing the function key “SA
on/off” the sawdrive and the secondary aggregates are switched off.
4.6 Cutting velocity
The automatic sawband is equipped standard with a infinitely adjustable cutting velocity. It
is adjusted in the menu “cutting data” (page 6). Reference values for the velocity
adjustment are to read from the chart in the appendix. The band velocity may not to fast if
the coolant pump is switched off, because a overheating of the band guide is to avoid.
4.7 Feed and Cutting pressure adjustment
The feed velocity is to adjust infinitely at the stream-regulating valve;
With the cutting pressure regulator; the hydraulic overload valve is pre-stressed
corresponding to the sawing material.
- For profile material: Adjustment 1 - 3
- For standard steel, as e.g. C 15 - C 45: Adjustment 4 - 6
- For high strength steel: Adjustment 7 - 9
For running in of new sawbands the feed is to reduce for the first cuts approximately 50%
of the standard feed .
During the sawing process for standard solid material the manometer for the cutting
pressure has to show "0" (no pressure);. A pressure rise at this manometer shows that the
overload valve reduces the sawfeed. For profiles the reducing is intent for example if the
sawband saws the flange of a beam.
4.8 Coolant
4.8.1 Swell cooling
After switch on of the saw drive the coolant supply is to adjust to the cutting interstice.
Therefore the closed valves are to open corresponding at the coolant distributor.
At the stationary band guide the coolant is only needed for cooling the carbide jaws and to
rinse chips off.
At the movable band guide the coolant supply should adjust stronger because more
emulsion can flow from here to the cutting interstice.
The intermediate coolant supply at the lifting feeler is only needed for larger material
diameters.
For the sawing process without coolant is it possible to switch off the coolant pump at the
DC-terminal in the menu " specific function" (page 13).
The band velocity may not to fast if the coolant pump is switched off, because a
overheating of the band guide is to avoid.
