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Teco Knives

Straight blades for industrial shears


Straight or shear blades perform the cross cutting of strip and sheet. At Teco Knives we make them to measure, up to 6 metres, in all types of steel and hardness, for shears, guillotines and cutting lines of the leading manufacturers.

Straight blades for industrial shears and guillotines up to 6 metres
Teco Knives · Valencia
Materials it cuts
INOX · Magnelis · etc.
Tolerance
±0.01 mm
Yield strength
Up to 1500 N/mm²
Formats
Straight & trimming

What are straight or shear blades?

They are the blades responsible for the cross cutting of strip and sheet. They are mounted on shears, guillotines and cross-cutting lines (cut-to-length and cropping), and are made straight and to the exact length of each machine.

Materials we work with

  • HSS (high-speed steel), conventional or powder-metallurgy (PM)
  • 1.2379
  • 1.2345
  • 1.2990
  • Stainless steel

Straight blade manufacturing service

Cross-cutting blades bring precision, durability and efficiency. Depending on the material to be cut, we manufacture blades for:

  • Cutting high-yield-strength steels (up to 1500 N/mm²)
  • Aluminium cutting
  • Pickling-line cutting
  • Galvanised cutting
  • Stainless steel cutting
Custom straight shear blades manufactured by Teco Knives, up to 6 metres

Features and tolerances of straight blades

Made to strict tolerances and designed for a long service life:

ParameterValue
Thickness tolerance±0.01 mm
Parallelism tolerance±0.01 mm
Flatness tolerance±0.01 mm
Hardness58–62 HRC depending on the application
Edge finishGround to Ra ≤ 0.4 µm: clean, burr-free edge
Maximum lengthUp to 6 m
Part markingCustom
Manufacturing specifications for straight shear blades

How to choose your straight shear blade

Every material and cutting process has specific needs. Before manufacturing, we consider:

  • Material to be cut: type of steel, aluminium or stainless steel
  • Maximum thickness and mechanical strength of the material
  • Cut finish and acceptable burr
  • Working conditions: temperature, lubrication and cycles per minute
  • Usable blade length and shear dimensions
  • Edge geometry: angle, bevel, single or double edge

Compatible with the leading shear manufacturers

We manufacture to drawing or from your original blade, compatible with shears and guillotines from the leading manufacturers in the metalworking sector, such as:

  • Adira
  • Axial
  • Fagor
  • Hidroeuropa
  • LVD
  • SafanDarley
  • Ermaksan
Frequently asked questions

Common questions

What is the maximum length of straight shear blade you make?

We manufacture straight blades for shears and guillotines up to 6 metres, in one piece or sectioned according to your machine's requirements.

What is the difference between a straight and a circular blade?

A straight or shear blade cuts the strip crosswise to produce sheets to size. A circular slitter knife cuts the coil lengthwise into narrower strips.

What materials and hardness do you work with?

Conventional or powder-metallurgy HSS, tool steels 1.2379, 1.2345 and 1.2990, and stainless steel, hardened to 58–62 HRC. We choose the material and hardness according to what you need to cut and the working conditions.

Are they compatible with my machine?

Yes. We manufacture to drawing or from your original blade, compatible with shears and guillotines from manufacturers such as Adira, Fagor, LVD, SafanDarley or Ermaksan, among others.

What edge types do you offer?

Straight and chip-breaker edges, with different cutting angles depending on the thickness and type of plate to be processed.

Which steel is best for cutting high-yield-strength steel?

For steels up to 1500 N/mm² we usually recommend 1.2990, or PM high-speed steel for maximum performance, or 1.2379 hardened to 60–62 HRC. The final choice depends on thickness and the shear.

Do you regrind straight blades?

Yes. We regrind them down to their usable dimensional limit, restoring the edge to its original tolerances and greatly extending service life.

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