Excellent 4.9 | 18,452 reviews

DYNABRADE 2-3/4" W X 8" L (70 mm X 203 mm) Dynaline Sander, Central Vacuum - 57404

DYNABRADE 2-3/4" W X 8" L (70 mm X 203 mm) Dynaline Sander, Central Vacuum - 57404

$581.99
$581.99 $774.99
SAVE 24% Sold out
DYNABRADE 2-3/4" W X 8" L (70 mm X 203 mm) Dynaline Sander, Central Vacuum - 57404

DYNABRADE 2-3/4" W X 8" L (70 mm X 203 mm) Dynaline Sander, Central Vacuum - 57404

$581.99
$581.99 $774.99
SAVE 24% Sold out

DYNABRADE 2-3/4" W X 8" L (70 mm X 203 mm) Dynaline Sander, Central Vacuum - 57404

  • .3 hp, 2,400 SPM, 3/8" (10 mm) Stroke Length, Rear Exhaust.
  • 2,400 strokes per minute at 90 PSIG (6.2 Bar). 3/8" (10 mm) stroke length.
  • Has 1" outside diameter vacuum port for easy central vacuum hose connection.
  • Includes 2-3/4" wide x 8" long vinyl-face, vacuum sanding pad (57455).
Specifications
Air Consumption (SCFM) 18.0
Power (hp) 0.3
Max. RPM 2,400
Pad Mounting Style 2 Screws
SPM 2400.0
Exhaust Type Rear
GL_Country Of Origin US
Hose I.D. in. (mm) 3/8"
Vacuum Type Vacuum
Height in. (mm) 3.75
Length in. (mm) 7.0
Weight lb. (kg) 2.64
Width in. (mm) 5.5
Pkg. Height in. (mm) 4.5
Pkg. Length in. (mm) 10
Pkg. Weight lb. (kg) 3.32
Pkg. Width in. (mm) 6.25
CE Certified Yes
EAN (UPC) 0616026574045
EAC Certified Yes
What our Experts Think
  • Straight-Line Sanding for Flat Surfaces – The Dynabrade 57404 Dynaline Sander is designed to deliver smooth, consistent sanding on panels, seams, and other large flat workpieces.
  • Central Vacuum Dust Extraction – Connects to a central vacuum system to efficiently remove sanding dust, improving visibility, reducing cleanup, and promoting a cleaner workspace.
  • High-Quality Surface Finishing – Straight-line sanding action helps minimize swirl marks, making it ideal for professional surface preparation and finishing.
  • Excellent Control & Comfort – Lightweight, ergonomic design provides balanced handling and helps reduce operator fatigue during extended sanding applications.
  • Built for Industrial Durability – Rugged construction ensures dependable performance in demanding automotive, woodworking, marine, composite, and manufacturing environments.
  • Versatile Surface Preparation – Ideal for filler leveling, primer sanding, feather edging, panel preparation, and fine finishing before painting or coating.
  • Best For: Automotive body repair, woodworking, composite finishing, marine applications, furniture manufacturing, and dust-controlled flat-surface sanding.
Q&A

Q: What is the DYNABRADE 57404 Dynaline Sander, Central Vacuum used for?
A: It is designed for precision sanding, surface preparation, blending, and fine finishing on flat surfaces, panels, and large workpieces while using a central vacuum system for dust collection.

Q: What are the benefits of the central vacuum system?
A: The central vacuum helps capture sanding dust at the source, improving visibility, maintaining a cleaner workspace, and supporting better air quality.

Q: What materials can this Dynaline sander be used on?
A: It is suitable for wood, metal, composites, plastics, fiberglass, body fillers, primers, and painted surfaces.

Q: Is this sander suitable for professional applications?
A: Yes, it is ideal for woodworking, automotive, aerospace, marine, manufacturing, and industrial finishing environments.

Q: How can I maintain optimal performance?
A: Use clean, dry compressed air, keep the vacuum system and air passages clear, inspect the sanding pad regularly, replace worn abrasives promptly, and lubricate the tool as recommended.

Maintenance Tips
  • Lubricate the air motor daily with approved pneumatic tool oil for smooth, reliable performance.
  • Inspect sanding sheets and the backing pad regularly, replacing worn or damaged materials promptly.
  • Keep the central vacuum port and extraction hose clean to maintain efficient dust collection.
  • Use clean, dry compressed air at the recommended operating pressure to minimize internal wear.
  • Clean air inlets, exhaust ports, and vacuum connections after each use.
  • Check air hoses, vacuum hoses, fittings, and fasteners regularly for leaks or damage.
  • Remove sanding dust and debris after operation to maintain consistent finishing performance.
  • Store the tool in a clean, dry environment to prevent corrosion and extend service life.
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