Brush & selective plating systems · Est. 1970 · Flemington, NJ(908) 526-8440hunter@hunterproducts.com

Diamond dusting for surgical instruments.

The Carbitron 300 is the original diamond-dusting system. Surgical instrument repair companies and instrument makers use it to apply a fine layer of tungsten carbide to working surfaces such as needle holder and forceps jaws, giving them the textured, hard grip that fine needles and tissue need.

Plain stainless steel jaws cannot be repaired once they wear, so the whole instrument gets replaced. A diamond-dusted surface adds a hard tungsten carbide grip where the instrument does its work. The deposit is fused to the instrument at 78 to 80 Rockwell C, applied with a tungsten-carbide electrode in a vibrating hand tool, a process generally known as electro-spark deposition.

Deposit thickness is set on the power supply from 0.0002" to 0.001" in 0.0002" steps. A 1/8" x 2 1/2" electrode covers about 50 square inches at 0.0005" average thickness, and replacement electrodes are $12.50, so one unit at each repair bench runs for very little. The same system also extends the life of cutting tools, punches and dies 5x to 10x in machine shops.

From $495.00 · ships direct from Flemington, NJ

In the box

  • Carbitron 300 power supply
  • Vibrator hand piece with power cable
  • Grounding cable
  • 1/8" tungsten-carbide electrode
  • 1/16" tungsten-carbide electrode

System features

  • Tungsten carbide layer, 78 to 80 Rockwell C
  • Deposit from 0.0002" to 0.001" in 0.0002" steps
  • About 50 sq in per 1/8" electrode at 0.0005"
  • Replacement electrodes in 1/8", 1/16" and 1/32"
  • 110V/60Hz, 4A; also available for 230V/50Hz
  • 15 lb, 11" x 6" x 5"

Applications

  • Diamond dusting needle holder and forceps jaws
  • Restoring grip on instruments during repair
  • Surgical and dental instrument manufacturing
  • Cutting tools: end mills, taps, reamers, lathe bits, saws
  • Punches, dies, collets, chucks and grippers

Used by

  • Surgical instrument repair companies
  • Surgical and dental instrument manufacturers
  • Machine shops and tool rooms
  • Tool and die and stamping shops

Tooling: where to deposit, and how much

Recommended tungsten carbide deposit by tool type, from the Carbitron 300 brochure
ToolDepositWhereThen
Lathe bits, single-point tools0.0004" to 0.004"Top side of the cutting edgeRe-sharpen by grinding the front
End mills, counterbores0.0002" to 0.0006"Cutting edges inside the flute, bottom and sides, full lengthRe-sharpen
Horizontal milling cutters, hobs0.0002" to 0.004"Front face of each tooth along the cutting edgeRe-sharpen (grind the land on milling cutters)
Shell mills0.0002" to 0.0006"Front face of the cutting surface along the edgeRe-sharpen
Reamers0.0002" to 0.0008"Inside the flute along the cutting edgeRe-sharpen
Countersinks0.0002" to 0.0006"Cutting edge inside the flute, full lengthRe-sharpen
Taps0.0002" to 0.001"Inside the flute along the cutting edge, 2 to 3 full threadsRe-sharpen dull taps first
Thread chasers0.0002" to 0.001"Top cutting edgeRe-sharpen dull chasers first
Saws0.0002" to 0.001"Front edge of each tooth (sides of the teeth on very fine saws)Re-sharpen
Punches and dies0.0002" to 0.001"Sides, face or both, wherever it wearsUsually coat the sides and grind the face
Molds, chucks, grippers, collets0.0002" to 0.004"The entire wear or gripping surfaceFinish with a light 0.0002" coat for smoothness

In every application, a light stoning with a cubic boron nitride or diamond stone removes burrs and gives the sharpest edge and smoothest surface.

How-to guides

Parts & pricing

7 items · USD

Carbitron 300 parts and pricing
Part no.DescriptionTypePriceOrder
TS3038Tungsten-Carbide Electrode 1/8"Standard 1/8" × 2½" tungsten-carbide electrode for the Carbitron 300 system. Supplied with the system; used for general-purpose deposition.Consumable$12.50
TS3039Tungsten-Carbide Electrode 1/16"Fine 1/16" × 2½" tungsten-carbide electrode for the Carbitron 300 system. Supplied with the system; used for finer work on smaller surfaces.Consumable$12.50
TS3040Tungsten-Carbide Electrode 1/32"Precision 1/32" × 2½" tungsten-carbide electrode for the Carbitron 300 system. For precision applications on small or delicate surfaces.Consumable$12.50
TS3042Vibrator Hand PieceReplacement vibrator hand piece for the Carbitron 300 tungsten-carbide coating system. Hand piece only; power cable not included.Equipment$89.00
TS3053Vibrator Hand Piece with Power CableReplacement vibrator hand piece with power cable for the Carbitron 300 tungsten-carbide coating system. Ready to connect to the unit.Equipment$119.00
TS3045Power Cable (Red)Replacement red power cable for the Carbitron 300 tungsten-carbide coating system.Equipment$30.00
TS3037Carbitron 300 SystemComplete tungsten carbide coating system. Ships with vibrator hand piece and power cable, grounding cable, and 1/8" and 1/16" electrodes. The original diamond dusting platform for medical instruments and tooling.110V / 220V · choose in cartComplete System$495.00
In developmentCarbitron 1000The heavy-duty Carbitron, with a discharge power supply and pneumatic vibrating hand tool. We're considering bringing it back. Tell us if you'd use one.Register interest →

Industries using the Carbitron 300

Not sure which configuration you need?

Tell us the part, the substrate and the finish. Our team will recommend a kit or a custom configuration.