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Q Can ALAS blades cut both mild steel and stainless steel?
A Yes, yet clearance adjustment and higher-grade steel required for stainless steel cutting. Notify ALAS sales before order for optimized heat treatment.
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Q What types of combination shear blades does ALAS offer?
A Full replacement blade sets including flat bar cutter, angle iron cutter, round/square bar shear, notch cutter and special profile cutting blades.
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Q Are ALAS blades compatible with both hydraulic and mechanical shearing machines?
A Fully compatible. 6CrW2Si with high toughness preferred for mechanical shears; D2 & H13 high-hardness grades available for hydraulic shear equipment.
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Q Why do blades crack along the mounting holes? How can this be avoided?
A Uneven bolt torque or worn fasteners lead to hole cracking. Tighten bolts sequentially from center to both ends and replace bolts every 2–3 blade replacements. ALAS supplies matched Grade12.9 high-tensile bolts.
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Q How to Correctly Set the Blade Clearance on a Shearing Machine?
A Empirical standard: 10% of plate thickness for steel (e.g. 0.15mm clearance for 1.5mm sheet); 5–8% for aluminum. Improper clearance causes burr or edge chipping. Recommended clearance range is marked on all ALAS factory-finished blades.
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Q Material selection: D2 vs H13 for ALAS shear blades?
A Choose D2(Cr12MoV1) for stainless steel & sheet ≤4mm for superior wear resistance; select H13 or 6CrW2Si for thick plate & heavy shock cutting. ALAS provides customized material selection chart.
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Q Common causes of blade chipping during rebar cutting & ALAS solutions
A Main trigger is misfed rebar. Clamp workpiece firmly and set clearance at 3–5% of material thickness. ALAS supplies specially tempered high-impact resistant blades as alternative.
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Q Are ALAS rebar blades reversible for dual-side usage?
A Most models adopt 4-edge reversible design. Loosen bolts and flip the blade to deploy brand-new cutting edge; inspect for chipping before reinstallation.
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Q Can ALAS blades cut quenched rebar and deformed threaded steel?
A Yes, applicable for rebar max Ø50mm with tensile strength ≤800MPa. For extra hard or deformed rebar, ALAS recommends carbide-tipped blades.
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Q Hardness range of ALAS rebar cutting blades?
A ALAS blades are fully heat-treated to HRC 50–62, balancing excellent wear resistance and toughness
