We produce power hacksaw blades for all power saw types on the market. Our range includes standard versions as well as Kasto clampings and sawblades made of bi-metal. True to the motto:
We deliver the specific power hacksaw blade that will lead to the optimal sawing result in accordance with your requirements!

Our recommendations for a long service life

When using GUHEMA power hacksaw blades, we recommend only a few, but very important rules concerning the workpiece and sawblade in order to achieve optimal cutting results:

  • Never start sawing on a corner.
  • Always saw with a running cooling system.
  • Firmly clamp the workpiece so that it sits tightly and cannot be twisted.
  • A new power hacksaw blade has to be run in. Reduce the cutting pressure by about 50% during the run-in period.
  • Remove any mineral residue that may be present on the workpiece.
  • Check the sawblade tension from time to time.
  • Change your metal sawblade early! Best indicator: significant increase of cutting time.
  • Maintain your metal sawblade in accordance with the manufacturer's instructions.
  • Adjust the cutting pressure, the cutting speed and the tooth number to the workpiece. The following diagram as well as the table can serve orientation purposes.
  • When using "Positive Teeth" and "Future", start with approx. 50% of the conventional pressure. When the sawblade has entered the material with its full width, the pressure has to be continuously increased without a buzzing sound becoming audible.

Cutting data

Cutting data recommendation for solid material in a normally annealed state for GUHEMA power hacksaw blades based on a stroke length of 200 mm.

Reduce cutting pressure for pipes and profiles depending on the wall thickness.

Material TPI for material dimensions   Cutting speed Blade /  
Designation up to   above Cutting pressure depending on material strength Grade Tooth form
  30 mm 50 mm 100 mm 200 mm 200 mm   Strokes / min m / min    
unalloyed steels / structural steels           
case hardening steels, such as           
St37-C10-C15 10-8 8-6 6-4 4-3 2-1,5 low 60-100 24-40 Super HSS normal
St50-St60 10-8 8-6 6-4 4-3 2-1,5 to medium 60-100 24-40 Super HSS normal
Quenched and tempered steels, such as           
C35-C45-C60 14-10 8-6 6-4 4-3 2 medium 55-80 22-32 Super HSS normal
CK45-40MN4 14-10 8-6 6-4 4-3 2 medium 55-80 22-32 Super HSS normal
34CrNiMo6-42CrMo4 14-10 8-6 6-4 4-3 2 medium 45-50 18-20 Super HSS normal
Alloyed carbon steels, such as           
125Cr1-115CrV3-100CrMo5 14-10 8-6 6-4 4-3 2 medium 40-60 25-40 Super HSS normal
X210Cr12 14-10 8-6 6-4 4-3 2 medium 25-40 10-16 Super HSS normal
High-speed steels, such as           
ABC III-DMo 5 10-8 8-6 6-4 4-3 2 medium 25-40 10-16 Super HSS normal
EMo 5 V 3-B18 14-10 8-6 6-4 4-3 2 & higher 25-35 10-14 Brillant normal
Stainless steels, such as           
V2A-V4A 14-10 8-6 6-4 4-3 2 Special provision 25-37 10-15 Brillant positive
Special alloys, such as           
Hastelloy-Inconel 10-8 8-6 6-4 4-3 2 Special provision 20-25 10-16 Brillant positive
Nimonic-Titanium 10-8 8-6 6-4 4-3 2 Special provision 10-13 4-5 Brillant positive
AMPCO 18-20 10-8 8-6 6-4 4-3 2 medium 45-50 18-20 Brillant normal
AMPCO 21-26 10-8 8-6 6-4 4-3 2 medium 40-45 16-18 Brillant normal
Cast steel 14-10 8-6 6-4 4-3 2 medium 50-70 20-28 Super HSS normal
Cast iron 14-10 8-6 6-4 4-3 2 medium 50-70 20-28 Super HSS normal
Special bronzes 10-8 8-6 6-4 4-3 2 medium-high 50-62 20-25 Brillant normal
Non-ferrous metals           
Aluminium bronze brass 8 6 4 3 2 low 80-120 32-48 Super HSS normal

Application range for our GUHEMA Future metal hacksaw blades:

TPI Description
8/10 Material thicknesses of 8-30 mm
6/8 Material thicknesses of 20-50 mm
4/6 Material thicknesses of 50-100 mm
3/4 Material thicknesses of 70-150 mm
2/3 Material thicknesses over 150 mm

Our recommendation for coarse tooth patterns (toothing)

Alternating cross-grinding

Use your advantage with our lateral ground-in rake you will get the cleanest cutting results. Premature teeth breaking is prevented by the ground-in rake and a lower burdening of sawblade and machine results from the chip disposal → both metal hacksaw blades and machine live longer.

We will gladly produce the lateral ground-in rake up to 6 TPI for you upon request. Contact us!

Alternating cross-grinding

Are you having trouble sawing? – We've got the answers!

Teeth breaking?

Possible causes:

  • Too low number of teeth selected. At least three teeth should be engaged simultaneously; this also applies to tubes and profiles.
  • You started sawing on a corner.
  • Workpiece has been clamped incorrectly.

Blade breaking?

Possible causes:

  • The cutting channel has been pressed together and blocks the sawblade.
  • Incorrect blade tension.
  • Selected toothing is too coarse for the workpiece.
  • Cutting pressure too high.
  • Worn pilot bearings in the machine.

Premature dulling of the teeth?

Possible causes:

  • Selected toothing is too fine
  • Selected cutting speed too high for the workpiece.
  • Too high pressure (increased tooth load) or too low pressure (teeth grinding on the workpiece instead of lifting a chip).
  • Inadequate/misaligned sawblade cooling.
  • Incorrect sawblade grade selected.
  • No sawblade lifting during return travel.

Unwanted course of the sawblade?

Possible causes:

  • Incorrect blade tension.
  • Incorrect blade tension.
  • Cutting pressure too high.
  • Worn pilot bearings in the machine.

No matching answer?

Then talk to an expert! Contact our application consulting at +49 (0) 2191 88 67-20.