0.6-170 mm Loop Foam Cutter with 131 kW Power and ±0.1 mm Precision

The C818A covers a thickness range that normally needs two machines. Sheet can be cut from 0.6 mm to 170 mm on the same endless loop blade, with ±0.1 mm precision on 0.6-5 mm sheet. Cutting speed is 60-130 m/min, cutting height is 1300 mm, width is 1100-2300 mm, the main drive is 131 kW and the machine weighs 60 T on a CE certified frame.

A machine that cuts 1 mm sheet and 150 mm padding has to be stiff and controllable at both ends of the range. At the thin end the risk is compression and witness marks; at the thick end it is feed rate and blade load. The C818A handles both with the same loop blade, which means a plant can move between thin comfort sheet and thick padding without a second set-up or a second machine.

• Model: C818A
• Cutting thickness: 0.6-170 mm
• Precision: ±0.1 mm (0.6-5 mm)
• Cutting speed: 60-130 m/min
• Cutting height: 1300 mm
• Cutting width: 1100-2300 mm
• Main motor power: 131 kW
• Machine weight: 60 T

1. Match the setting to the sheet. Set the thickness from 0.6 mm to 170 mm on the machine control.
2. Set speed for the grade. Thin sheet and soft foam run slower; thick sheet in dense foam can run faster.
3. Check the block face. A square face matters more at the thin end than at the thick end.
4. Cut the first sheet. Take one sheet and measure it at both edges and the middle.
5. Run the block. Keep the setting for the batch and stack the sheets flat.
6. Re-set for the next order. Change the thickness on the control, then cut a new sample.

The range is wide, so the discipline is in the sample sheet: every change of thickness gets one measured sheet before the block runs. That is a cheaper habit than sorting good sheet from scrap afterwards.

Thin sheet and thick padding ask different things of a machine. Thin sheet needs a face that does not compress ahead of the blade and a feed that does not stall; thick padding needs power and a frame that holds the cut line over a large cross-section. A loop blade with a heavy frame answers both, because the blade stays in the material and the load goes into the structure rather than into a reciprocating mechanism.

The compromise in a single machine is speed setting. At 0.6 mm the sheet is fragile, so the pass runs slower than at 100 mm; at 170 mm the blade has more material in the cut, so the feed is set for the blade load rather than for the sheet. Setting speed from the job rather than from the maximum keeps both ends inside tolerance.

The other variable is the block face. At 170 mm a sloped face costs a thicker first sheet; at 1 mm it costs a taper across the whole sheet. Trimming the face before the block goes on is the cheapest quality control on the machine.

• Thin sheet: slower pass, sharper blade, square block face.
• Thick sheet: power and blade load decide the feed, not the sheet.
• Any change: one measured sample sheet before the batch runs.

• Full range on one machine: 0.6 mm to 170 mm removes the need for a separate thin-sheet slicer.
• Thin end precision: ±0.1 mm on 0.6-5 mm, which is what a comfort layer buyer checks.
• Thick end power: a 131 kW drive keeps the feed rate steady through 150 mm padding.
• Clean face at both ends: the loop blade shears rather than compresses, so thin sheet keeps a flat face.
• 1300 mm block height: full blocks are loaded whole.
• 1100-2300 mm width: wide blocks cut across the full width on a 60 T frame.
• CE certified: export-ready guarding and electrics.

• Mattress comfort layers: 0.6-5 mm sheet at ±0.1 mm.
• Thick padding: 100-170 mm sheet for furniture and seating.
• Packaging: thin protective sheet and thick cushioning from the same block.
• Lamination: uniform thin sheet for bonding lines.
• Acoustic foam: fixed thickness sheet across a wide block.
• General conversion: one machine covering a mixed order book.

Loop blade faults show up early. Check the first sheet of each block at both edges and the middle, and one rejected sheet replaces half a shift of scrap.

With a wide thickness range, the machine setting is the main control. Operators should know which thicknesses run at which speed, and should cut a sample whenever the setting changes. A machine that cuts 0.6 mm and 170 mm invites a casual setting change; the sample sheet is what keeps the casual change from becoming scrap.

The machine is 60 T and cuts at up to 130 m/min, so guarding and clearance matter. Keep the blade line clear, keep the guard in place, and keep the emergency stop within reach of the take-off position.

• Settings: thickness and speed recorded per order, no ad-hoc changes mid-block.
• Sample sheet: measured on every change of thickness.
• Guarding: guard fitted, blade line clear, emergency stop reachable.
• Handling: lift or roller table for blocks; flat pallets for sheet.

A blade that is right for 170 mm sheet may be marginal at 1 mm sheet, so check the edge on the thin work you run, not only on the thick work. If the thin sheet starts showing a taper, the blade is the first thing to check, not the thickness setting.

Guide clearance and blade tension are the two settings that carry across the range. Record them, and re-check after each blade change so a thin order does not start from a setting that was made for thick sheet.

• Every shift: blade edge, guide clearance, dust at the head.
• Weekly: blade tension, joint condition, feed system.
• Monthly: lubrication, cabinet dust, thickness check on a thin test sheet.
• After a blade change: re-set the guide, then cut a 1 mm test sheet before the batch.

The machine ships in export packing with the head blocked and the frame braced. At 60 T, confirm the heavy-lift plan, the container or flat-rack booking and the access at the destination before the shipment date.

Delivery is 45 working days after downpayment, payment by T/T or L/C, minimum order one set. Spare loop blades and guide parts can ship with the machine so the first year does not depend on air freight.