CNC Sponge Peeling Machine with 1-30 mm Thickness and 0-130 m/min Speed

The TDPA-2300 is a rotary peeling machine that turns a sponge block or cylindrical foam roll into continuous thin sheet. Cutting thickness is entered on a CNC touch screen from 1 mm to 30 mm, the peeling head runs at 0-130 m/min, and the machine holds ±0.08 mm on sheets between 1 mm and 3 mm. It peels rolls from 20 mm to 1500 mm in diameter and up to 3000 mm in width, with an 8.69 kW drive, 2000 kg machine weight and 5000*2500*2000 mm footprint.

The machine is built for plants that peel the same foam grade into the same thickness all shift. Output is not set by the top spindle speed but by how little time is lost between rolls: loading, chucking, starting the pass and taking the sheet off. The TDPA-2300 keeps the peeling head engaged, so the operator's time goes to material handling instead of setup, and the sheet leaves the blade without cutting marks.

• Model: TDPA-2300
• Control: CNC touch screen
• Cutting thickness: 1-30 mm
• Cutting tolerance: ±0.08 mm (1-3 mm sheet)
• Cutting speed: 0-130 m/min
• Cutting diameter: 20-1500 mm
• Cutting width: 500-3000 mm
• Motor power: 8.69 kW
• Machine weight: 2000 kg
• Overall dimension: 5000*2500*2000 mm
• Certification: CE

1. Mount the roll. Chuck the foam roll or block on the machine axis and check that it turns without run-out.
2. Set the thickness. Enter the target thickness, 1 mm to 30 mm, on the touch screen.
3. Set the speed. Choose the peeling speed for the foam grade within the 0-130 m/min range.
4. Start the head. The peeling head advances to the set depth and the roll starts to turn.
5. Peel the sheet. The blade lifts a continuous sheet, which is taken off and stacked as the roll runs down.
6. Change the roll. When the roll is finished, re-chuck and repeat; the thickness setting stays the same for the batch.

Because the thickness setting is digital, a batch of one size runs from the first roll to the last without a setup step in between. The operator spends the shift on loading and stacking, which is where the output actually comes from.

Peeling speed is not the same thing as output. The blade can run at 130 m/min only if the sheet can be taken away at that rate, so the usable speed depends on roll diameter, sheet width and how fast the operator can stack. On a 1500 mm roll the surface speed at the blade is what matters, which is why a large roll peels faster in metres than a small one at the same spindle setting.

The practical limit is heat and dust. A sheet peeled at the top of the range builds static and lifts dust from the foam surface, so the take-off table and the extraction point need to be clear. On soft low-density foam, a lower speed gives a flatter face than a high speed with a dull blade.

Tolerance is set by the guide, not the speed. The ±0.08 mm figure applies to 1-3 mm sheet and is held by the servo feed on the peeling head. Once the guide shows play, the tolerance opens up on thin sheet first, long before the surface looks rough.

• High-density PU and rebond: run near the top of the speed range, the blade loads evenly and the face stays flat.
• Soft low-density sponge: reduce speed so the foam does not compress ahead of the edge.
• Very thin sheet, 1-3 mm: keep speed moderate and check the first metre against a gauge, that range is where ±0.08 mm is measured.

• Thin sheet at production speed: 1 mm to 30 mm thickness while the head runs up to 130 m/min, so a thin-sheet order does not need a second machine.
• No gear change: the thickness value is entered numerically, which removes the gear set, the trial cut and the scrap that goes with a mechanical changeover.
• Clean sheet surface: the rotary peeling action shears the foam instead of compressing it, so the face stays flat and free of blade marks.
• Wide roll range: 20-1500 mm diameter and 500-3000 mm width covers blocks, cylinders and long foam rolls on the same machine.
• Stable tolerance: ±0.08 mm on 1-3 mm sheet keeps a mattress comfort layer within the thickness the buyer measures.
• Low failure rate: the drive and peeling head run without the shock loading of a reciprocating cut, which reduces downtime and spare part use.
• Simple operator interface: one screen for thickness, speed and start, so a new operator is productive in a single shift.

• Mattress production: comfort layers, support sheets and quilt backing foam in repeat thicknesses.
• Furniture upholstery: sheet foam for seat cushions, armrests and back padding.
• Packaging: thin flexible foam for shock absorption, interleaving and protective inserts.
• Footwear: insole and lining foam peeled to a fixed thickness.
• Composite and lamination: uniform thin foam for flame lamination and fabric bonding.
• General conversion: foam sheet stock cut to a sellable thickness for resale.

Most thickness complaints come from the first metre of a roll. Check that metre before running the rest of the batch, and one rejected sheet replaces half a shift of scrap.

Plan the shift by thickness. Group all rolls of one thickness into one run so the touch screen setting is entered once, and keep the next rolls staged at table height so the change takes seconds rather than minutes.

Keep one log per batch: foam grade, roll diameter, thickness setting, speed, blade hours and the thickness check from the first metre. When a buyer reports a thin comfort layer, the log shows whether the cause was the roll, the setting or the edge.

Foam behaves differently in a cold workshop than in a warm one. A setting made early in the morning can peel a slightly different sheet after the hall warms up, so check the first sheet after any temperature change and note it in the log.

• Before the shift: clean the take-off table, check the guide clearance and confirm the extraction is running.
• First roll: measure the first metre of sheet at three points across the width.
• During the run: watch the sheet edge; a wavy edge means the roll is not square or the guide has moved.
• End of shift: remove foam dust from the head, table and sensors before it packs into the guide.

The blade is a consumable and the guide is the part that decides whether the blade lasts. Check the edge at the start of each shift, keep the guide clear of foam dust, and follow the sharpening interval for the foam grade rather than for the calendar. A dull blade compresses the foam before it cuts, and the sheet comes out with a rounded, glazed edge that no setting will correct.

The drive and the peeling head need little more than clean lubrication and a check for play. Most of the tolerance complaints we see trace back to a guide that was re-set by feel instead of with a gauge, so keep the set-up values in the machine file and re-check them after any blade change.

• Every shift: blade edge, guide clearance, dust on the table and sensors.
• Weekly: blade tension and drive pulley condition, vacuum or extraction filter if fitted.
• Monthly: lubrication points, electrical cabinet dust, thickness check against a gauge.
• After any blade change: re-set the guide with a gauge and peel one test roll before the batch.

The machine is shipped in an export plywood case with the peeling head blocked, the touch screen protected and the blade packed separately. Overall machine size is 5000*2500*2000 mm at 2000 kg, so confirm the container plan and the door width at the destination before booking.

Delivery is 45 working days after downpayment, payment by L/C or T/T, and installation guidance plus remote commissioning support are included. Spare blades, guide parts and the common wear items can be shipped with the machine so the first year does not depend on an air freight order.