50-80 mm Hole Diameter Automatic Feeding Foam Boring Machine with 2300 mm Boring Length

The C519 is an automatic foam boring machine for centre holes from 50 to 80 mm. Boring length is 2300 mm, motor power is 4 kW, machine weight is 1500 kg and the overall dimension is 6000*1600*2500 mm. The machine is CE certified and handles both cylindrical rolls and cubic blocks.

One peeling line rarely runs one shaft size. A supplier may be asked for a 50 mm bore for one customer and an 80 mm bore for the next, and a machine that only holds one size forces either a second machine or a manual rework step. The C519 uses interchangeable cutter heads across the 50-80 mm range.

• Model: C519
• Boring length: 2300 mm
• Hole diameter: 50-80 mm
• Motor power: 4 kW
• Weight: 1500 kg
• Footprint: 6000*1600 mm

1. Pick the cutter head. Match the head to the required bore, from 50 mm up to 80 mm.
2. Fit and check the head. Seat the head on the spindle and confirm the fixing is tight.
3. Set the centre height. Match the spindle height to the roll diameter.
4. Clamp the roll. Square the roll to the spindle and lock the end stop.
5. Bore the centre hole. Run the automatic feed through the block at the set rate.
6. Check the bore. Measure the hole at both ends and record the size for the batch.

Change the cutter head before the batch, not in the middle of it. A head changed mid-batch is the usual reason one or two blocks in a run come out at the wrong diameter.

The hole in a foam block is a handling feature. It takes the shaft that carries the block through peeling, so the bore has to match the shaft, not the other way round. A machine that covers 50-80 mm covers the shaft sizes used on most peeling lines without a second machine.

The cutter head is the part that sets the size. Interchangeable heads mean the changeover is a head swap and a check, not a machine rebuild. That keeps small mixed orders economical, which matters for suppliers running several customers on one line.

The bore wall matters as much as the diameter. A hole that is 2 mm oversized still takes the shaft, but it lets the block move during peeling, and the sheet thickness varies as a result. A steady feed and a sharp head keep the bore round and on size.

• Shaft matching: 50-80 mm covers the common handling shafts.
• Fast changeover: the head sets the size, so mixed orders stay practical.
• Bore quality: a round, on-size hole keeps the block stable during peeling.

• 50-80 mm range: one machine covers the shaft sizes most peeling lines use.
• Quick cutter change: the bore size changes with the head, not with the machine.
• Round holes in round foam: the centre line is held through cylindrical rolls.
• Consistent bore wall: steady feed and 4 kW spindle torque produce a clean hole.
• 2300 mm stroke: long rolls are bored without a second set-up.
• Automatic feed: the operator loads and unloads instead of pushing the roll.
• CE certified: export-ready guarding and electrics.

• Cylindrical foam rolls: centre holes for shaft insertion before peeling.
• PU sponge blocks: centre bores for handling and mounting.
• Mattress core foam: centre holes for shaft-based handling systems.
• Filter and roller foam: axial holes through cylindrical foam parts.
• Peeling line feed stock: bored rolls ready for the peeling machine.
• Contract boring: mixed shaft sizes handled on one machine.

Most boring faults show up as a hole that is off centre or oversized before they show up as a mechanical breakdown. Check clamping, cutter condition and feed speed first, because those three settings cause most of the scrap on a boring station.

Rolls move more easily than blocks. Confirm the roll is clamped and the end stop is locked before the feed starts, or the roll will creep forward during the bore.

Keep hands out of the boring zone while the spindle is turning. The cutter head is exposed at the point where the roll enters, and that is where contact happens.

• Confirm the cutter head size against the order before the batch starts.
• Check the roll is clamped square to the spindle.
• Set the stroke limit to the roll length.
• Stop the spindle before measuring or clearing the bore.
• Record bore size and block count at the end of each batch.

Cutter heads wear faster than any other part of the machine. A dull head increases the feed force, heats the bore wall and eventually produces an oversized hole, so heads should be checked daily and replaced on condition.

The clamp and end stop need a weekly check. A clamp that has lost pressure lets the roll move during boring, and the result is a hole that drifts off centre without any obvious machine fault.

• Check cutter heads for dull edges and chips daily.
• Clean foam dust from the feed table and slideways at shift end.
• Check clamp pressure and end stop weekly.
• Inspect the spindle belt and bearing play monthly.
• Grease the feed screw on the maintenance schedule.

The machine ships in a reinforced export crate with the spindle head, cutter heads and feed table braced for transport. The crate matches the 6000*1600*2500 mm machine envelope.

The shipment includes a spare cutter head option, the crating list and a commissioning checklist. Remote support is available during installation.