TDPO-2.2 Automatic CNC Revolving Loop Blade Foam Contour Cutting Machine 6000x2100 mm 1300 mm Height

Product Overview

The TDPO-2.2 is a CNC revolving loop horizontal band knife contour cutting machine built for batch production of flexible foam profiles and sheets. Its continuous micro-tooth loop blade runs horizontally at up to 70 m/min and rotates through ±360°, allowing the cutting head to follow complex two-dimensional contours without turning the block. The long 6000 × 2100 mm table is designed for full production blocks and for cutting several parts in a single program.

This model was developed for PU sponge and latex sponge — the two materials that dominate automotive interiors, furniture and decorative foam. The micro-tooth blade structure is the central design choice: instead of a plain sharpened band that needs frequent re-grinding, the tooth pattern keeps the cutting edge effective over a longer service period, which stabilises precision and reduces downtime. For a plant running the same profile day after day, that translates into fewer blade changes and more consistent output.

Cutting height is 1300 mm and the minimum cutting radius is 10 mm — a combination that covers both tall blocks and the tight curves found in seat bolsters, headrest surrounds, chair arms and decorative profiles. Precision tolerance is ±0.5 mm. The machine weighs 3.5 tons and measures 8000 × 5000 × 2700 mm, with 8.5 kW of installed motor power.

The TDPO-2.2 is aimed at automotive foam suppliers, furniture and mattress factories, interior decoration producers and foam converting plants that need volume contour cutting with a repeatable edge. As a horizontal loop machine, it is the natural choice when the part is essentially a two-dimensional contour cut from a block or thick sheet, rather than a full three-dimensional shape requiring a vertical profiler.

A horizontal loop band knife runs an endless toothed band in a horizontal plane. The cutting edge passes through the workpiece at table height, while the return section runs below or behind the guard. Because the band is continuous, the cut is smooth and uninterrupted, with no reciprocating stroke and no reversal dead time. The feed is controlled by the CNC table or head movement, so the contour is generated by the program rather than by an operator pulling the block.

The revolving head adds a second degree of freedom. The band assembly rotates through ±360° so the tooth edge always faces the direction of travel. On an S-curve or a closed loop, a fixed horizontal blade would bind or tear because the blade would be cutting sideways through the foam. The revolving head avoids this: the blade stays tangent to the path, the kerf stays clean, and a closed contour can be completed without lifting or re-entering.

A production cycle begins with the block or sheet loaded onto the 6000 mm table. The operator recalls the program, checks the band speed and feed rate for the material density, and starts the cycle. The CNC moves the workpiece and the revolving head follows the contour; when the loop closes, the machine returns to the load position. Programs are stored by part number, so the same profile is reproduced identically on the next shift.

Most band knife machines use a plain sharpened edge. It cuts well when new, but the edge dulls progressively, and the operator has to compensate by reducing feed rate or accepting a rougher cut until the band is re-ground or replaced. The TDPO-2.2 uses a micro-tooth structure instead. The small teeth score and separate the foam cells along a narrow line, which keeps the cutting action stable as the edge wears and removes the repeated re-grinding step from normal production.

For the buyer, the practical effects are threefold. First, precision stays stable over a longer run, because the tooth geometry continues to cut rather than rub. Second, blade change downtime falls. Third, the cut face remains open and consistent, which matters for latex and PU parts that are later glued, laminated or upholstered. The tooth pattern is not a saw blade for rigid material; it is designed for soft foam, where a clean separation rather than removal of chips is the goal.

The machine is built on a long, rigid frame sized for a 6000 × 2100 mm working area. At 3.5 tons and 8000 × 5000 × 2700 mm overall, the structure is intended to carry full blocks without table deflection and to absorb the load of a fast-moving band.

• Revolving loop cutting head — horizontal micro-tooth band with ±360° rotation, keeping the edge aligned with the contour direction.
• Band drive and tensioning system — 0–70 m/min band speed with tracking and tension control to keep the loop centred during long runs.
• CNC motion system — interpolated table/head movement with acceleration profiles tuned for soft foam, so corners do not tear.
• 6000 × 2100 mm table — long working surface for full blocks and multi-part nesting, with 1300 mm cutting height clearance.
• Control cabinet and operator interface — part program storage, production counters and fault diagnostics.
• Safety guarding and interlocks — band return path and drive wheels enclosed; cycle stops when a guard is opened.

• Micro-tooth blade without repeated re-grinding — stable precision and less downtime over long production runs.
• 10 mm minimum cutting radius — handles tight irregular contours and decorative profiles, not just large-radius shapes.
• 0–70 m/min band speed — built for batch output on PU and latex sponge rather than one-off samples.
• ±360° revolving head — closed loops and S-curves are cut in one pass without rotating or re-fixturing the block.
• Long 6000 mm table — suits full production blocks and multi-part nesting, improving material utilisation.
• ±0.5 mm precision tolerance — repeatable dimensions for downstream gluing, lamination and upholstery.
• Clean, unsealed cut face — no melting or densification, so adhesive bonds properly and the foam stays compressible at the edge.

A 10 mm minimum cutting radius is unusually tight for a horizontal band machine of this size, and it is what allows the TDPO-2.2 to cut decorative profiles and automotive trim parts rather than only large cushions. The limitation is set by the band width and the guide geometry: below the minimum radius the band cannot bend around the path without rubbing and overheating. Operators should keep the programmed radius at or above 10 mm and reduce feed rate on the tightest sections.

Accuracy comes from the combination of a guided band, a rigid table and consistent CNC feed. The band is supported close to the cutting point, limiting lateral deflection; the table does not flex under the block; and the feed rate stays constant through curves instead of varying with hand pressure. Under normal production the machine holds ±0.5 mm, which is suitable for parts that go directly into lamination, upholstery or assembly.

Edge quality is a separate benefit of tooth cutting. Because the teeth separate the cells rather than melting them, the cut face is open and slightly textured. Adhesive penetrates that surface instead of sitting on a glazed skin, so laminated parts are less likely to delaminate. There is no wire consumption and no fume extraction requirement, which simplifies the workplace and lowers running cost.

• PU flexible sponge — seat foam, cushion cores, mattress layers and packaging profiles.
• Latex sponge — mattress comfort layers, pillows and contour-cut latex parts.
• Soft flexible foam sheet and block — where a two-dimensional contour is required from a thick section.
• Laminated flexible foam — where the adhesive is fully cured and the layers are compatible with band cutting.

Special-shaped PU and latex foam for seats, headrests, bolsters, armrests and trim padding. The 10 mm radius capability is important here, because automotive contours often include tight returns and small cut-outs that a larger-radius machine cannot produce cleanly.

Contour cutting of sofa cushions, mattress transition layers, chair arms and decorative foam components. The 6000 mm table allows several parts to be nested in one program, which improves yield from each block.

Custom decorative foam profiles, soft architectural shapes and packaging sheet materials. These jobs are frequently design-led and low-to-medium volume, so eliminating die cost and re-grinding downtime is a direct commercial advantage.

Batch profiling of latex and PU foam sheets, including contract cutting for other manufacturers. The combination of long table, fast band and stable tooth edge suits plants that measure output in shifts rather than pieces.

The TDPO-2.2 sits in the shaping stage of a flexible foam line. Upstream, it receives blocks or thick sheets from a foaming line, a horizontal peeling machine or a vertical block cutter. Downstream, its output feeds lamination, gluing, quilting, upholstery or packaging assembly. As with any contour machine, the block should have a reasonably flat bottom and square reference edges, because the table and the program assume a known datum.

In a typical layout, a vertical cutter squares the block, the TDPO-2.2 cuts the contour, and a lamination line bonds the shaped part to fabric or another foam layer. Where the plant also runs a peeling machine, thick sheets can be peeled first and then contour cut, which is often more economical than cutting thin sections from a full block. We can review the complete process with the buyer and recommend table size, nesting strategy and material flow before shipment.

• Versus vertical band knife: the horizontal loop is more productive for flat two-dimensional contours and long parts, and the 6000 mm table allows nesting. A vertical profiler remains necessary for full 3D shapes and deep vertical sections.
• Versus oscillating knife: the continuous loop has no reversal dead time, so average speed is higher on long contours and closed loops. Oscillating machines retain an advantage on extremely soft or delicate grades and very small features.
• Versus hot wire: no melted or hardened edge, no wire consumption, no fumes and better glue adhesion. Hot wire is cheaper but limited to straight cuts and simple profiles.
• Versus die cutting: no die cost, no die storage and no waiting for tooling when the design changes. Die cutting remains faster for very high volumes of a single small part.

The 6000 × 2100 mm table is one of the defining features of this model. It allows a full production block to be loaded without pre-cutting, and it allows multiple parts to be nested across the length so that the band spends more time cutting and less time returning to a start point. For a plant cutting several similar profiles per block, nesting can improve material yield noticeably.

Large blocks are light for their size, and a fast band can shift them if they are not properly supported. The table surface should be clean and flat, and the block should be positioned against the reference edge before the cycle starts. For tall or very soft blocks, a hold-down or a simple fixture is recommended; our application team can advise based on the part drawing and material grade.

The band wheels and the return section of the blade are enclosed by guards with interlocks, and the control system prevents the cycle from starting if a guard is open. Emergency stops are placed at the operator position and at the rear of the machine. Blade changes are carried out with the drive isolated and with cut-resistant gloves; because the band is a continuous loop, correct tensioning and tracking after a change are essential and are covered in the manual.

Operation is learned quickly. A new operator typically needs one to two days to load programs, set the band speed and feed rate, and run a first article. Programming is done offline from a DXF or drawing and transferred to the controller; no machine-side code writing is required. Training at installation, a printed operation manual and remote support for program preparation are included.

• Foundation: a level, reinforced concrete floor able to carry the 3.5-ton machine plus the workpiece; anchor points are supplied.
• Power: a dedicated supply matching the 8.5 kW installed load, with correct earthing and stable voltage.
• Space: the 8000 × 5000 × 2700 mm footprint must be accessible from the loading side and allow safe band changes.
• Daily checks: band tension, tooth condition, guide cleanliness and table surface.
• Weekly checks: wheel tracking, guide wear, lubrication points and electrical connections.
• Spares: micro-tooth bands, guide inserts, wheel bearings, tension springs and proximity sensors are the usual consumables; we keep these available for repeat buyers.

Band life depends on foam density and abrasive content, but the micro-tooth structure is designed to reduce the frequency of re-grinding. When the cut edge starts to show fuzz or the feed force rises, the band is replaced. Wheel tracking and guide wear are the second maintenance items to watch, because they gradually open the tolerance if left unchecked.

Each machine is assembled, wired and run before shipment. The test report covers band tracking and tension, head rotation through the full 360°, CNC response, guarding, emergency stop and a sample contour cut measured against the drawing. The buyer receives the inspection record with the machine.

The machine is shipped in export-grade packaging with the table and frame protected against moisture, the cutting head secured, and loose parts boxed and labelled. Packaging details are confirmed with the buyer before dispatch because the 8000 × 5000 × 2700 mm frame normally requires a flat-rack or an open-top container. Delivery is 45 working days after downpayment, and payment terms are T/T or L/C.

The TDPO-2.2 is the right choice when the work is a two-dimensional contour cut from PU or latex foam, when the profile includes tight radii down to 10 mm, or when the plant needs a long table for nesting. It is not the right machine for rigid EPS, XPS or rockwool, nor for full three-dimensional shaping, which needs a vertical profiler. Buyers should confirm the maximum block size, the smallest radius, the foam grades, the required output per shift, the available power and floor space, and the container route. Sharing those details lets us confirm the configuration and the spare band requirement before the order.