Fixture

Soft jaw packs

Soft jaw packs protect painted, polished or powder-coated stock from clamp marks during fabrication. Use them with ClampRail and JigKit gear for a clean, damage-free grip.

What soft jaw packs are and which gear they fit

Soft jaw packs are durable elastomer inserts made to clip or slide into our ClampRail System or JigKit Modular fixtures. They provide a protective cushion, so you can clamp painted tube, powder-coated railings, anodised aluminium or mirror-polished stainless without scratching or denting the surface.

These packs are cut for 18 mm dogs, 12 mm jig slots and common tube sizes used in gate, balustrade, trailer and furniture work. They handle mild steel, stainless or aluminium in training and production bays. You will see them in use with balustrade fitters, signage shops, school welding bays and any workshop that needs to keep visible parts clean and mark-free.

How to use soft jaw packs for best results

Always check the jaws are seated flat against the clamp faces before tightening. Make sure the elastomer is clean and free of weld spatter, cutting dust or grinding grit. If you have several sets, keep one for painted or mirror-finish work and another for rougher jobs.

Use only enough clamp force to hold the work steady. For oval or thin-wall tube, work up pressure carefully so the pack grips without deforming the part. On awkward shapes, position the jaw as close as possible to the weld zone for better control and less movement.

  • Seat jaws squarely before tightening clamps
  • Wipe clean before and after use
  • Keep spares for clean work
  • Do not overtighten on soft or thin material
  • Use matching jaw size for the tube or rail

Care, spares and common mistakes

Inspect soft jaw packs for cuts, burns or hardening after each shift. Replace if the elastomer lifts, cracks or loses grip. Store clean spares in a marked tray or drawer, away from sharp offcuts and solvents.

Common mistakes include overtightening, using dirty jaws on fresh paint, and misplacing packs between bays. Avoid mixing old, hard jaws with new ones on the same job. If the pack slips or leaves a mark, check for leftover weld splatter or dust on the jaw and workpiece. For spares or extra packs, send us a message through our contact form.

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