CN380H
CN380 Skeleton - line Door Panel Edger With Grooving
The heavy-rail CN380 with grooving: the skeleton-door pre-milling unit at station 02 is the grooving head, cutting the grille slots and re-cutting the edge before the band goes on, and the PUR pot, the 35° ends and the track motor follow at 29 kW.
Overview
- Fifteen cells in the order printed on the sheet: track conveyor, skeleton door pre-milling device, high-definition wide screen, pre-milling, two-colour PUR no-cleaning pot, swing-type pressing, double-stack disc trimming, scraping 1, scraping 2, 35° end and tail trimming, hinged flat scraping, high-speed four-knife tracking, polishing 1, polishing 2 and the track synchronous motor device.
- The skeleton-door pre-milling device at station 02 is the grooving unit of this build: a double-blade head cuts the grille slots and re-cuts the edge after jointing, so the ripple marks and the vertical deviation those steps leave are gone before the band is applied. Grooving does not take a separate cell.
- Two pre-milling heads in one line: the skeleton head at station 02 and the standard double-diamond head at station 04.
- The 21.5-inch wide screen is station 03 on this build, not station 01, because the track and the skeleton head come first on the sheet.
- Panels from 50 mm wide and 8 to 60 mm thick, band 0.4 to 3 mm thick and 12 to 65 mm wide.
- 16 to 25 m/min on a 9,600 mm frame at 950 mm wide and 1,800 mm high, with 29 kW installed, the heaviest build in the CN group.
- The track synchronous motor at the last station keeps the panel position and the station timing locked, so the grooved and pre-milled edge reaches the trimming and tracking heads in step.
- The H suffix marks the grooving build, and the grooving is done by the skeleton-door pre-milling device at station 02 rather than by an extra cell, so the fifteen stations on the sheet are the whole line.
CN380H
CNSK · Dongguan
Feed rate16 – 25 m/min
Panel width≥ 50 mm
Stations15
Total power29 kW
Frame9,600 mm
Station sequence
The sheet starts with the track conveyor and puts the skeleton-door pre-milling head at station 02; the wide screen is station 03, which differs from the standard CN380. The fifteen cells are as printed.
01
Track conveyor
A crawler conveyor supports the panel and drives it through every cell at constant speed.
02
Skeleton door pre-milling
A double-blade unit cuts the grille slots and re-cuts the edge after jointing, so the ripple marks and the vertical deviation those steps leave are gone before the band goes on.
03
High-definition wide screen
A wide touch screen with fingertip control; a mouse and keyboard can be added if the operator prefers them.
04
Pre-milling
Two milling cutters re-finish the saw marks, burrs and out-of-square edges left by the panel saw, so the band seats on a clean face.
05
Two-colour PUR no-cleaning pot
The pot holds two PUR colours and switches between them without a solvent flush, and it sits outside the machine so the melt is kept apart from the EVA furnace.
06
Swing-type pressing
The pressure roller swings on an arc and cushions the load at the joint instead of hitting the band flat.
07
Double-stack disc trimming
Two stacked disc heads trim the band top and bottom in one pass, so the overhang comes off square to the panel face.
08
Scraping 1
The first scraping head takes the trim-knife marks and surplus glue off the upper edge of the band.
09
Scraping 2
The second scraping head repeats the pass on the lower edge, so both faces come off the band clean.
10
35° end and tail trimming
The end heads cut at 35° and back off on their own when a thicker board or band comes through, so corners are not chipped.
11
Hinged flat scraping
A hinged scraper follows the panel face and lifts surplus hot-melt off flat, with the angle set on the hinge.
12
High-speed four-knife tracking
Four knife heads on four motors trim the band round both corners at full feed, so a radiused corner comes off the line finished.
13
Polishing 1
Cotton wheels clean the finished edge on the first pass, taking the dust and the last of the glue off.
14
Polishing 2
The second pass finishes the edge after the first, for a higher sheen on the joint.
15
Track synchronous motor
A synchronous motor drives the track, so the panel position and the station timing stay locked together.
Technical data
| Model | CN380H |
| Feed rate | 16 – 25 m/min |
| Panel width | ≥ 50 mm |
| Panel thickness | 8 – 60 mm |
| Edge band thickness | 0.4 – 3 mm |
| Edge band width | 12 – 65 mm |
| Pressure beam | Heavy rail, electric lift |
| Processing stations | 15 |
| Control screen | 21.5-inch wide screen |
| Input voltage | 380 V |
| Air pressure | 0.7 MPa |
| Total power | 29 kW |
| Machine size (L × W × H) | 9600 × 950 × 1800 mm |
Values from the CN380H technical data sheet in the 2026 configuration list. The sheet prints the model as CN380H and repeats the CN380 equipment name; the H build is the grooving version, and the grooving is done by the Skeleton Door Pre-Milling Device at station 02, so it does not take a separate cell. The other differences are the wide screen at station 03, the high-speed four-knife tracking and the track synchronous motor, at 29 kW.
What the machine is built to do
- Skeleton head is the grooving unitThe double-blade unit at station 02 cuts the grille slots and re-cuts the edge after jointing, so the band seats on a clean face instead of bridging a ripple.
- Two pre-milling passesSkeleton pre-milling at station 02 and the standard diamond head at station 04, for door edges that come off two different operations.
- Track synchronous motorThe track motor keeps the panel and the station timing locked, so a grooved and pre-milled edge reaches the trimming heads in step.
- Four-knife trackingFour knife heads on four motors trim the band round both corners at full feed.
- Heavy rail and 29 kWThe heaviest CN build: 29 kW on a 9,600 mm frame, for lines running doors and panels together.
- Two-colour PUROne no-cleaning pot, two adhesive colours, no solvent flush between them.
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Put CN380H against your panel.
Send the thickness, width and band you run. You get a station list, the tooling and a price against your name.