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Begin with the arbor stripped and clean, then check the key, flanges, and spacer faces for burrs or packed swarf. Mount the HSS Slitter with the marked rotation facing correctly, tighten evenly, and turn the assembly by hand to confirm side clearance. In Gauteng shops, a cold machine at first light often needs a short idle run before the first slit on paid stock.
Use the bore that matches the machine arbor properly, without a sloppy bush doing all the centring work. Kerf choice must suit the strip width, motor load, and the stiffness of the material being slit. Before production starts, confirm the guides are square and the side play is not pushing the blade off line.
Keep a record of the first acceptable sample with width, material grade, and spindle speed written down. That note matters when the afternoon team sees a change in burr or heat colour on the edge. A quick setup card near the machine is more useful than relying on memory after blade changes.
Feed rate on an HSS Slitter should be set by chip formation, not by how hard the machine can be pushed. Mild steel and stainless will not behave the same, and thin wall sections can ring or grab if the feed is too aggressive. On aluminium, watch for loading on the tooth line and keep clamping firm enough to stop chatter without bruising softer stock.
Use this setup page together with the matching material path and the relevant kerf note for the stock on your machine. If your arbor stack, spacer set, or motor size falls outside the common workshop range, send the details through our contact form so the setup can be checked against the blade spec.
Stop and reset when the slit starts closing on the blade, when burr rises on one side only, or when the cut line shows blue heat marks. Those signs usually point to runout, poor support, incorrect feed, or a blade that is dull for the material. Swapping to a different material path is cheaper than forcing one setup through a full batch.
If a handover moves from one branch or buying point to another, include the blade diameter, thickness, tooth form, material, and the speeds already tried. Teams working through Clearwater, Cresta, Pavilion, Tyger Valley, Baywest, Mimosa, and Riverside can pick up the setup history faster when those basics are written down.
Our contact form lists Kya Sands, Johannesburg for HSS Slitter setup queries that need arbor, spacer, or cutting data checked against the blade.
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