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KS390 3″ x 90″ Metal Belt Grinder with Vacuum

The KS390V is a heavy-duty metal belt grinder designed for shops that demand power, cleanliness, and all-day reliability. Built for machine shops, fabrication shops, and even the tough environment of an iron foundry, this grinder delivers fast, smooth stock removal while keeping your workspace cleaner with its built-in vacuum base. It’s a true production tool that helps teams work faster and more efficiently, whether you’re deburring steel, finishing cast parts, or shaping stainless. With its adjustable head, strong motor options, and rugged construction, the KS390V gives any metal working shop a dependable professional tool that’s made to run hard and last long.

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Made in the USA

The KS390V delivers the power, speed, and cleanliness today’s shops need. This metal belt grinder was built to run all day and help your team get better results with less effort. Whether you’re in a busy machine shop, a high-output fabrication shop, or working inside an iron foundry, this grinder gives operators a dependable professional tool that boosts productivity and keeps the work area cleaner. It’s the kind of production tool every serious metal working shop can count on.

Benefits

  • Fast, consistent grinding that improves finish quality and reduces rework

  • Built-in vacuum base helps keep dust under control for a cleaner, safer shop

  • Strong 2–3 HP motor handles heavy stock removal and demanding materials

  • Adjustable grinding head for comfortable horizontal-to-vertical operation

  • Durable steel construction built for industrial use and long service life

  • Uses standard 3″ x 90″ belts for easy sourcing and quick changeovers

  • Stable work table helps operators stay accurate on every pass

  • Made in USA

Motor Options

  • 2 HP Motor

    • Phase: Single Phase (1PH)

    • Voltage: 230V only

    • Amps: 11.5 amps at 230V

  • 3 HP Motor

    • Phase: Three Phase (3PH)

    • Voltage: 230V or 460V (specify at time of order)

    • Amps:

      • 230V: 7.2 amps

      • 460V: 3.6 amps

Equipment Specifications

  • Platen

    • 24-1/2″ long

    • Steel construction

    • Reversible and replaceable

  • Drive System

    • Direct drive

  • Contact Wheel

    • 8″ outside diameter x 3″ width

    • Serrated, 70 duro rubber

    • Sealed ball bearings

  • Belt

    • Size: 3″ x 90″ (compatible with all belt types)

    • Speed: 7200 SFPM

  • Tension System

    • Spring belt tension

    • Quick-release tension lever

  • Tracking

    • Easy belt tracking adjustment system

  • Material Work Stop

    • Included

  • Table & Head Adjustability

    • Adjustable steel work table

    • Adjustable belt grinder head

  • Platen Guard

    • Removable steel guard

  • Grinder Head Access

    • Hinged door for fast belt changes

  • Flexible Positioning

    • Operates from horizontal through vertical positions

Base

  • Heavy-duty steel base

  • Built-in 100 CFM vacuum system

  • Replaceable filter

Machine Options

  • Variable Frequency Drive (VFD)

  • Aluminum oxide belts (50, 80, and 100 grit available)

Dimensions & Weight

  • Machine Dimensions: 48″ (L) x 57″ (W) x 52″ (H)

  • Shipping Weight: 500 lbs.

  • Shipping dimensions and weight subject to change

Origin

  • Made in the USA

  • Variable Frequency Drive
  • KB39050 – 3″ x 90″, 50 grit, general-purpose aluminum oxide sanding belts (sold in packs of 10)
  • KB39080 – 3″ x 90″, 80 grit, general-purpose aluminum oxide sanding belts (sold in packs of 10)
  • KB390100 – 3″ x 90″, 100 grit, general-purpose aluminum oxide sanding belts (sold in packs of 10)

The KS390V is built to handle the tough, everyday jobs that keep your shop moving. This metal belt grinder is a versatile production tool that helps operators work faster and with more control, whether they’re shaping parts, cleaning castings, or finishing welds. From high-output fabrication floors to heavy-duty cleanup rooms in an iron foundry, it gives any metal working shop a reliable professional tool ready for a wide range of grinding tasks.

Applications

  • Deburring laser-cut, plasma-cut, or saw-cut steel parts

  • Smoothing and cleaning castings straight out of an iron foundry

  • Grinding, shaping, and finishing stainless steel and aluminum

  • Removing welds and blending fabrication seams

  • Preparing edges for welding or fitting

  • Refining surfaces for better coating, painting, or polishing

  • General stock removal in any busy metal working shop

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Additional Equipment Images and Accessories

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KB39050 3 x 90 inch 50 grit sanding belt, aluminum oxideKB39050 3 x 90 inch 50 grit sanding belt (one box)

The KS390V stands out because it’s built for real industrial work. It delivers high belt speed, a strong 2–3 HP motor, and a built-in vacuum base that keeps dust down. This machine isn’t a hobby unit—it’s a professional tool made for daily use in any metal working shop.

The vacuum pulls metal dust and debris down into the built in vacuum base that has a replaceable filter, helping keep your shop cleaner and safer. This is a big advantage for shops that run long grinding sessions or work with cast parts from an iron foundry.

This grinder excels at:

  • Deburring cut steel

  • Smoothing castings

  • Finishing welds

  • Shaping stainless

  • General stock removal

If your team grinds metal daily, this production tool delivers the speed and control you need.

Yes. The belt tracking is simple, the platen is replaceable, and the vacuum filter is easy to access. This keeps downtime low—perfect for fast-paced machine and fabrication environments.

Absolutely. With up to 3 HP and an 8″ serrated contact wheel, it’s designed for aggressive stock removal. It performs well on all common metals used in fabrication, foundry work and metal working shops, including mild steel, stainless, aluminum, and cast materials.

The KS390V is ideal for:

  • High-production machine shops

  • Fabrication shops doing daily grind work

  • Stainless and aluminum fabricators

  • Iron foundry cleanup rooms

  • Any shop that needs a reliable professional tool that runs all day

Yes—every KS390V is built in Kalamazoo, Michigan with industrial-grade materials. You get local support, long-lasting parts, and dependable service.

Power Up Your Shop with the KS390V Grinder with Vacuum

Grind faster, keep your workpieces cleaner, and hit tight tolerances with repeatable, pro-level results on every pass.

Call (269) 382-2050 or Request a Quote today.

Made in the USA | Built for Fabrication | Proven in Metalworking Shops