Band saw tooth tip hardening machine Type BHM 80
Heating occurs in a continuous process. A cooling water system is required for cooling the generator or inductor that heats or hardens the teeth.
- There are 3 possibilities for this:
- Direct connection to the water main at a pressure of 3 bar. Only to be recommended if the water is not too cold and the price of water is low.
- Cooling unit that cools down the heated water during operation and returns it to the generator with the help of a pressure pump (operating pressure 3.5 – 4 bar expensive solution).
- Cost-effective solution
1 water tank with a content of ca. 450 litres with a pressure pump 3.5 – 4 bar fitted with an adjustable temperature probe that controls a solenoid valve feeding fresh water from the mains. For an 8-hour day and normal daytime temperature the amount of water used is approx. 60 litres. The heated water then runs off via an overflow into a drain or can be collected for other purposes.
Note: The water is used for cooling only and is not contaminated.
Technical data:
| Dimensions: | Width: 230 cm |
| Depth: 75 cm | |
| Height: 130 cm | |
| Total power: | approx. 3 kW |
| Water flow: | (Inductor) approx. 2.5 litres/min. |
| Drive power: | Band saw feed (friction drive) steplessly adjustable via gear motor |
| by means of a potentiometer | |
| Winder unit: | via slipping clutch with gear motor drive |
| Generator power: | 2 kW for the Himmel generator HG 34 shown |
| Weight: | 205 kg |
| Operating voltage: | 230/400 Volt, 3 Phase, 50 cycles or |
| 230/440 Volt, 3 Phase, 60 cycles | |
| Other voltages via a transformer | |
| Note: | All types and makes of generator from 2-6 kW with cable outlet |
| can be used, heating capacity 40-50 teeth/min. | |
| Tube generators are better suited for this purpose. Electronic converters or generators are only partly suitable for the purpose of the operating time. |