Kompernass PTBM 350-13 manual Advice on Drilling Workpieces, Declaration of Conformity

Page 7

ADVICE ON DRILLING WORKPIECES

The following points should be observed at all times:

always use sharp tools

cool the drill bit with a suitable liquid

use a special drill bit for drilling into stainless steel

for very hard materials use a higher pressure at lower speed setting for soft materials apply light pressure at a higher speed

Attention: too high a pressure overloads the motor and reduces the drilling speed small drills require a high drill speed

larger drills require a lower drill speed

The following table gives further helpful advice:

the correct speed is different for each material

the cutting speed is dependent on the diameter of the drill and the rotation speed the table gives the approximate rotation speed

please note that an average speed has been calculated for the listed materials and the rotation speeds have been rounded

in some cases the calculated cutting speeds (CS) cannot be selected in practice - use the nearest available value

Material

CS

Wood, soft

300 rpm

Wood, medium

180 rpm

Aluminium "hard“

120 rpm

Wood “hard”, copper

60 rpm

Steel or sheet metal

35 rpm

Aluminium “soft”

30 rpm

Structural steel

25 rpm

Alloy steel

10 rpm

Stainless steel (VA steel)

10 rpm

Drill size

 

 

 

 

 

 

 

 

2

3

4

5

6

7

8

9

10

13

max.

max.

max.

max.

max.

max.

max.

max.

max.

max.

max.

max.

max.

max.

max.

max.

max.

max.

max.

max.

max.

max.

max.

max.

max.

max.

max.

max.

3800

2950

max.

max.

max.

3800

3200

2700

2400

2100

1900

1500

max.

3700

2800

2250

1850

1600

1400

1250

1100

850

max.

3200

2400

1900

1600

1350

1200

1050

950

700

4000

2650

2000

1600

1300

1150

1000

900

800

600

1600

1100

800

650

500

450

400

350

300

250

1250

850

650

500

400

350

300

280

250

200

DECLARATION OF CONFORMITY

We, Kompernaß Handelsgesellschaft mbH, Burgstr. 21, D-44867 Bochum, Germany, declare that this product complies with the following EU directives:

Machinery Directive (98/37 EC), Low Voltage Directive (73/23 EEC, 93/68 EEC), Electromagnetic Compatibility (89/336 EEC, 93/68 EEC) in accordance with the applicable standards, and confirm this with the CE mark.

Type/machine description: PARKSIDE BENCH DRILL PTBM 350-13

Bochum, 31.08.02

Hans Kompernaß

- Managing Director -

7

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Contents Ptbm Operating instructions Page Proper USE Specific Safety AdviceFeatures of the Ptbm Bench Drill PtbmSetting UP the Machine AssemblyTechnical Information Setting the Drilling Table Installation and First USESwitching the Machine on and OFF Setting the SpeedDeclaration of Conformity Advice on Drilling WorkpiecesWarranty Page Page