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The original portable , Trim-A-Slitter™, by Van Mark Products, was engineered for production slitting, rib forming and perforating materials in the shop or on the job. Whether your making custom ventilated soffit panels, or stiffening trim work with the rib forming feature, Van Mark has the slitter for all your material handling needs. Available in 14", 24" models.
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  • HARDENED STEEL, DOUBLE SIDED SLITTING KNIVES= Long trouble-free service life.
  • PRECISION GROUND & POLISHED KNIVES=Provides clean burr-free edges in all types of material.
  • ANODIZED ALUMINUM CONSTRUCTION=Stands up to the rigors of all job site weather conditions.
  • VIRTUALLY MAINTENANCE FREE=Occasional lubrication and cleaning
  • EASY TO USE, YET VERSATILE=Knives and perforators reposition in seconds.
  • FOLDING FEED TABLE WITH ROLLER GUIDES=Quickly adjusts to different widths of material.
  • OPTIONAL PERFORATING DIES= Allows creation of custom job site ventilation products
  • BUILT-IN TAPE RULE=Helps maintain slitter knife orientation with material.
  • OPTIONAL POWER PACKAGE=For fast production slitting, in the shop or on the job.
  • UPGRADABLE=Add-On knives, perforating rolls and capacity boosters (see below).
Trim-A-Slitter Add-Ons
  1. Optional Booster Block/Blocks, part no. 3578, can be positioned along the slitter shaft where added support is desired.
  2. Optional Capacity Booster increases shaft strength for heavier gage materials used in slitting and perforating operations.
  3. Perforating Sets. Used for making custom ventilation components right on the job. Set provides 3.625 inches of net free area per linear foot per pass.
  4. Knife Sets. Additional knife sets are added to provide multiple slitting and rib forming during a single pass through the slitter. Note: Each knife edge can be used for cutting.