Edgebander Cutters
WhisperCut Symmetrical Pre-Milling Cutter 80x35x30+2KN Z=2+2 for Edgebanders
WhisperCut symmetrical pre-milling cutter 80 x 35 x 30+2KN, Z=2+2, with replaceable PCD inserts, 30 degree axial angle and 12,000 rpm maximum.
Specifications
- Type
- Symmetrical WhisperCut pre-milling cutter
- Outer Diameter
- 80 mm
- Cutting Thickness / Height
- 35 mm
- Bore
- 30 + 2KN
- Z (knives)
- 2+2 standard; 3+3 available
- Axial Angle
- 30 degrees
- Body Material
- Aluminium alloy with PCD tips
- Max Speed (Nmax)
- 12,000 RPM
- Replaces
- Leitz WhisperCut and Wirutex jointing pre-milling cutters
- Machine Brands
- Biesse, Cehisa, HOLZ-HER, IMA, IMA Advantage, Brandt, SCM/Stefani, Felder
- Application
- Pre-milling in preparation for edgebanding on chipboard, MDF, plywood and coated or veneered panels
This is the compact WhisperCut head: 80 mm outside diameter, 35 mm cutting thickness, 30+2KN bore, Z=2+2, with a 30 degree axial angle and a maximum speed of 12,000 rpm. It is a direct replacement for the Leitz WhisperCut and Wirutex jointing pre-milling cutters used on a long list of European edgebanders.
What the 30 degree axial angle does
The axial angle is the helix of the cutting edge relative to the axis of rotation. A sheared edge slices into the panel face instead of striking it square, which is what produces a chip-free edge on melamine and veneer rather than a line of torn fibres. Thirty degrees is the standard shear for this class of head: enough to shear cleanly, not so much that the axial force becomes hard to absorb.
Symmetrical means balanced cutting force
In a symmetrical layout the cutting edges are arranged so the radial and axial forces cancel. The head runs without a net side load, which keeps it stable at speed and keeps the pre-milled edge square. It is the correct choice when the head is jointing both faces of the panel in a single pass.
The 2KN bore
The 30+2KN bore carries two keyways in addition to the 30 mm cylindrical bore. The keys transmit the drive torque positively, so the head cannot slip on the spindle under load - which matters on a head that is taking an interrupted cut at 12,000 rpm. When ordering, confirm the keyway arrangement on your spindle, because not every 30 mm spindle uses the same key position.
Replaceable inserts, resharpened several times
The cutting edges are separate PCD inserts, not brazed tips. A dull edge is dealt with by rotating or replacing the insert, and the inserts can be resharpened several times before they are worn out. Spare inserts can be ordered separately so the head does not have to leave the machine for a regrind.
Machine coverage
The head fits Biesse, Cehisa, HOLZ-HER, IMA, IMA Advantage, Brandt, SCM/Stefani and Felder edgebanders. If your machine is not on that list, the four values that decide the fit are still the same: outer diameter, cutting thickness, bore and Z layout.
How to specify the head
Send the machine make and model, the existing head dimensions, the bore and keyway arrangement, and the panel material. If you are replacing a Leitz or Wirutex part, give us that part number and we will cross-reference it.
The shear angle cuts the face; the symmetrical layout keeps the head stable while it does it.
ZhongJian Tech manufactures PCD and diamond edgebander tooling - jointing cutters, pre-milling heads, edge rounding cutters and replaceable insert systems - in Futian Town, Anyuan District, Pingxiang City, Jiangxi Province, China. Send the machine brand and model, the panel material and the part number you are replacing, and we will confirm the specification and quotation. Email ferrytk803@gmail.com, phone / WhatsApp +86 13617995900.
Frequently asked questions
Does this cutter fit my edgebander?
The bore is 30 + 2KN and the machines it is built for are Biesse, Cehisa, HOLZ-HER, IMA, IMA Advantage, Brandt, SCM/Stefani, Felder. Four values decide the fit — outer diameter, height, bore and Z layout — and the machine brand narrows the choice without replacing the measurement. Check the bore and the keyway against your spindle before ordering.
Is it a direct replacement for the OEM part number?
Yes — Leitz WhisperCut and Wirutex jointing pre-milling cutters. Quote that part number when you inquire and the specification is cross-referenced against it, which is faster and more reliable than measuring a worn head.
What happens when the cutting edges dull?
A dull head shows up first as a rougher edge, then as a glue line that opens on every panel. Deal with it on condition rather than on a fixed calendar, because the wear rate depends on the panel material and the feed rate.
Which panels does it cut cleanly?
Its application is pre-milling in preparation for edgebanding on chipboard, MDF, plywood and coated or veneered panels. The requirement in every case is the same: no chipping on the top and bottom face, because the banding covers the edge and not the face. Feed rate, spindle speed and cutter condition all have to match for that to hold.
