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Overview & Products

THE BEST SOLUTION FOR AUTO AND AVIO INDUSTRY

As one of the leading cut wire abrasive manufacturer, Spajic® company in its offer has a wide range of diameters, hardness and materials of abrasives, that have found their use in surface treatment processes in different industries. By cutting the wire to the length equal to the diameter of the wire, cylindrical cut wire abrasives are produced. By rounding cylindrical abrasives, conditioned cut wire abrasives are produced. We can distinguish three types of conditioned abrasives based on the degree of rounding G1, G2 and G3 type. Based on the type of industry and surface treatment application, the type of cut wire abrasives is determined (cylindrical or conditioned), material that the abrasives are made from as well as their hardness.

In our offer we have all types of cut wire abrasives, from different wire, ranging from different diameter made to satisfy the needs of all our customers.

Our cut wire abrasives have the possibility of re-use with the service life of cca. min 4000 cycles no matter grain size and hardness.

Cut wire abrasives have a high level of consistency in terms of shape and hardness which directly influences the increase of quality of the surface treatment of the materials being treated.

Taking into account large number of possible reuses, cut wire abrasives last longer, thus saving on ordering and purchasing another quantity of some other abrasives is obvious.

The fact that the particles of our cut wire abrasives do not break, result in the longer lasting of the operational mix used for treatment.

Grain Shapes

AS-CUT WIRE SHOT (CYLINDRICAL)

still has the sharp corners from the cutting operation. As-cut wire shot is an effective cleaning abrasive but it isn't suitable for shot peening applications since the sharp edges are potentially damaging to fatigue life.

CONDITIONED CUT WIRE SHOT (CCW)

has had its sharp edges removed in a process called “conditioning." Conditioned cut wire shot is used in shot blasting and many automotive and military shot peening applications.

DOUBLE CONDITIONED CUT WIRE SHOT (DCCW)

has been double conditioned in order to achieve shot that is more spherical in shape.

SPHERICAL CONDITIONED CUT WIRE SHOT (SCCW)

has been cut and conditioned to produce an exceptionally smooth and round media. This media is used in the most demanding blast cleaning and shot peening processes.

BENEFITS OF USING CUT WIRE SHOT

LOWER SURFACE CONTAMINATION
Cut Wire Shot does not have an Iron Oxide coating or leave Iron Oxide residue—parts are cleaner and brighter. All media leave a residue on the surface of the part being blasted or shot peened. Those media that fracture rapidly can leave tiny broken particles imbedded in the part surface. Other media leave a very thin smear on the part surface. Cut Wire Shot media does not breakdown as quickly as other media and does not tend to fracture into the tiny particles that may imbed themselves into the part surface. Therefore Cut Wire Shot media leaves much less (as much as 10 to 20 times less) residue on the part surface.
HIGHEST DURABILITY
Due to its wrought internal structure with no internal defects (cracks, porosity and shrinkage), the durability of Cut Wire Shot is much greater than Cast Steel Shot. Microstructure of Cut Wire Shot is pearlite which is best combination of hardness and durability. Microstructure of Cast Wire Shot is bainite (which deforms quickly) or martensite (which led to fracturing of shots). Minimum service life (durability) of Spajic Cut Wire Shots is 4200 cycles, regardless particle size and hardness. In addition to the Durability of media, the mode of breakdown is very important, especially in shot peening applications. Cast Steel shot deteriorates by forming broken (fractured) particles. Cut Wire Shot media's mode of deterioration is wear. Cut Wire Shot particles tend to wear down into smaller diameter pieces rather than fracture into sharp edge broken particles.
HIGHEST CONSISTENCY
Cut Wire Shot media has the highest consistency from particle to particle in size, shape, hardness and density. Cast wire shot does not have Consistent Performance due to fast size deterioration.
PROCESS TIME/SHOT MEDIA CONSUMPTION
Cut wire shot provide reduced time for Shot Blasting/Peening. Cast Steel Shot higher consumption in Shot Blasting/Peening increases Working Cycle time. Consumption of Cut Wire Shot decreases i.e. 33% to 67% less to Cast Shot (case to case basis). Lower Process Time and Media Consumption reduce Operation and Inventory Costs for the same job
MICROSTRUCTURE / GRAIN SIZE
Microstructure of Cut Wire Shot is pearlite which is best combination of hardness and durability. Microstructure of Cast Wire Shot is bainite (which deforms quickly) or martensite (which led to fracturing of shots). Cut wire shots have stabilized grain size due to drawing passes. Grain size of Cast Shot is unstabilized.
SIZE VARIATIONS
Cut Wire Shots are being made out of same wire and they are identical, no variation of size anywhere. Cast Steel Shots are being produced of mixed size hence product is a mix of various sizes.
HIGHEST RESISTANCE TO FRACTURE
Cut Wire Shot media tends to wear down and become smaller in size rather than fracturing into sharp-edged broken particles, which may cause surface damage to the part.
LOWER DUST GENERATION
Cut Wire Shot is more durable and resistant to fracture, resulting in a lower (almost none) dust generation rate. Cast steel shots have high dust generation rate.
IMPROVED PART LIFE
Parts exhibit higher and more consistent life than those peened with equivalent size and hardness cast steel shot. Fatigue tests have been performed on actual parts as well as laboratory specimens to determine if one steel media is equal to, or better than, another in terms of part life. Parts and specimens shot peened. With Cut Wire Shot exhibit higher average life and more consistent life than those peened with equivalent Cast Steel Shot.
SUBSTANTIAL COST SAVINGS
The longer useful life of SPAJIC Cut Wire Shot results in savings of media consumption, dust removal and equipment maintenance. Rounded edges cause less damage to all impacted areas of the blast machine.