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  • National Equipment Helix Grinder Replacement Parts

National Equipment Helix Grinder Replacement Parts

Use the manual to help search for your part number, or click on the subcategory you need to shop below.

Browse machine subcategories

Rectificadora planetaria Helix de National Equipment View Machine Helix Labels6 parts Helix 230V Control Panel16 parts Helix 110V/120V Control Panel17 parts Helix Alternate Handle Assembly4 parts Helix Upper Handle Assembly25 parts Helix Lower Handle Assembly16 parts Helix Motor Assembly & Parts13 parts Helix Skirt Assembly16 parts Helix Grinder Base Assembly10 parts Helix 402757 Tooling Assembly16 parts
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Manuals & parts diagrams

Specs & maintenance schedule

Manuals & documents

  • PDF Helix Operating & Service Manual (403223 Rev J)
  • PDF Helix Service Manual (403315 Rev J)
  • PDF Helix Maintenance Checklist
  • PDF Concrete Grinder Training Guide
  • PDF Grinder Tooling Guide

All 7 documents

Parts diagrams (403223 Rev J)

  • Overall Machine p. 22
  • Base Assembly p. 23
  • 402757 Tooling Assembly p. 24
  • 403231 Skirt Assembly p. 25
  • Motor p. 26
  • Lower Handle Assembly p. 27
  • Upper Handle Assembly p. 28
  • Handle Assembly (Helix-11XXXX Only) p. 29
  • Control Panel - 110V/120V p. 30
  • Control Panel - 230V p. 31
  • Labels p. 32
  • Wiring diagrams p. 33

Maintenance guides for this machine

How-to and troubleshooting from the PreFloor Knowledge Center.

  • Dust Extraction: Matching a HEPA Vacuum to Your Grinder

    Sizing a dust collector to a grinder under OSHA Table 1, what HEPA and filter cleaning mean in practice, and the setup mistakes that kill airflow.

  • Grind, Shot Blast or Scarify? Choosing a Prep Method

    Diamond grinding, shot blasting and scarifying compared: the surface profile each produces, what each removes, and how to pick one for the job.

  • Diamond Tooling: Bond Hardness and Grit Selection

    How to match diamond bond hardness to the slab, which grit does what, when to use PCD instead, and how to tell your tooling is wrong.

  • Metal Bond, Resin Bond and PCD Tooling Compared

    What metal bond, hybrid, resin bond and PCD tooling each do, where one hands off to the next, and why PCD is a removal tool only.

  • Grinding Off Thinset, Mastic and Glue Residue

    Getting thinset, mastic and glue residue off concrete: testing first, choosing between PCD, metal bonds and floor-machine attachments, and handling the dust.

  • Edge Grinding Along Walls and Columns

    Grinding the last inches along walls and columns with a shrouded hand grinder or a planetary's edge mode, matching the field, and OSHA Table 1 for handheld g...

  • Polishing Concrete: Grit Sequence and Densifier

    The grind-hone-polish sequence, when and how to apply densifier, lithium vs sodium silicate, gloss targets, and dust and slurry rules for polished concrete.

All equipment care guides

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