Kaifil supplies stainless steel reverse Dutch weave belts for continuous polymer filtration. Eight paired weave constructions cover 0.6–1.75 mm thickness, with belt widths matched to each weave.
Metal wire meshShare a drawing, reference sample or application requirements to discuss the configuration.
The photographs show roll preparation and the dense woven belt surface.
| Parameter | Specification | Notes |
|---|---|---|
| Weave | Reverse Dutch weave | — |
| Weave constructions | 54×15 / 72×15 / 132×17 / 160×18 / 200×40 / 260×40 / 300×40 / 350×40 | — |
| Belt thickness | 0.6–1.75 mm | Thickness is paired with the weave in the size table. |
| Stainless steel grades | 304 / 316L | — |
| Belt width | 50–1500 mm | Width ranges follow the selected weave construction. |
| Supply format | Slit strip / roll / prepared filter belt | — |
| Installation | Continuous and automatic screen changers | — |
Materials: 304 / 316L stainless steel
Reverse Dutch weave places a dense array of finer warp wires against fewer, heavier weft wires. The longitudinal wire system supports belt travel through a screen changer, while the woven passages provide the filtering surface. The belt combines the specified weave with a controlled width and clean edges for movement through the equipment.
The specification table connects each warp×weft count to both wire diameters, belt thickness and width range. The 54×15 construction uses 0.45×0.60 mm wires and a 1.75 mm thickness. At the finer end of the series, 350×40 uses 0.13×0.27 mm wires and a 0.6 mm thickness. Select the whole row to preserve the geometry of the belt.
Belt width, thickness, travel direction and edge treatment determine how the strip passes through guides, sealing blocks and the feed mechanism. A replacement drawing should show the installed width, running clearance, roll length, winding direction and any joint or clamp. The filter support and breaker plate establish the load path behind the moving cloth.
Provide the polymer type, melt temperature, throughput, contamination and pressure difference across the belt. These inputs connect the weave and supported area to the filtration duty. Inspection focuses on count, wire pair, width, thickness, edge quality and winding condition so the delivered belt follows the machine path consistently.
The warp direction follows the length of the belt. Mark the leading end and travel direction on the roll drawing, together with the winding face and roll core. The slit edges pass through the machine guides; a straight, clean edge and consistent width keep the strip aligned. The supported filtration window, sealing margins and feed contact surfaces are dimensioned as separate zones.
304 and 316L describe the moving woven belt. The breaker plate, guides and sealing components belong to the screen-changer assembly. Melt type, temperature, flow and differential pressure define the service of the installed belt. This specification separates cloth geometry from machine-support dimensions and operating conditions.
Reverse Dutch belts feed automatic filtration on plastic filament extrusion, stretch-film and coating lines. In recycling, the contamination profile and rate of loading determine the replacement demand. The belt drawing connects that duty to the active window and feed arrangement.
Choose the complete weave and wire pair, then specify belt width within the corresponding range.
| Warp × weft (per inch) | Wire diameters (mm) | Thickness (mm) | Belt width (mm) |
|---|---|---|---|
| 54×15 | 0.45×0.60 | 1.75 | 50–800 |
| 72×15 | 0.45×0.55 | 1.7 | 50–800 |
| 132×17 | 0.23×0.45 | 1.2 | 50–1000 |
| 160×18 | 0.28×0.45 | 1.27 | 50–1000 |
| 200×40 | 0.17×0.27 | 0.7 | 50–1500 |
| 260×40 | 0.15×0.27 | 0.65 | 50–1500 |
| 300×40 | 0.15×0.27 | 0.65 | 50–1500 |
| 350×40 | 0.13×0.27 | 0.6 | 50–1500 |
| Interface | Define on the drawing | Purpose |
|---|---|---|
| Feed and winding | Leading end, travel arrow, winding face, roll length and core dimensions | Places the belt into the feed path in the intended orientation. |
| Edges and guides | Finished strip width, parallel edges, guide clearance and edge treatment | Maintains lateral tracking through the guide and sealing block. |
| Filtration window and backing | Active area, support openings, sealing margin and belt thickness | Combines the woven filtering face with the machine support and sealing geometry. |
A continuous screen-changer belt is defined by its woven construction and its path through the changer. Specify the finished strip width, edge condition, roll length and winding direction together with the warp and weft wire schedule. The belt travel direction and filtration flow direction are separate arrows on the installation drawing.
The filtering strip must seat against the changer's support and sealing lands. Keep the strip edges and any joint outside the specified working region. For repeat orders, retain the weave identification, both wire diameters, roll orientation and batch record; a nominal mesh description alone does not reproduce the complete moving belt.
| Feature or construction | Role in the assembly | Drawing or acceptance check |
|---|---|---|
| Woven strip | Provides the filtering structure | Weave and wire schedule in both directions |
| Finished width and edges | Fit the guide and sealing region | Width tolerance, cut edge and straightness |
| Belt travel | Defines the strip path | Feed direction, guides and take-up orientation |
| Support and sealing lands | Carry and seal the active strip | Contact face, exposed window and edge overlap |
| Roll delivery | Preserves handling orientation | Length, winding direction, batch and edge protection |
| Supply item | Order basis |
|---|---|
| Production lead time | 2–3 weeks after order and drawing confirmation. |
| Trial orders | Small trial quantities for fit and process evaluation. |
| Regular material orders | Quantity follows the selected roll, sheet or cut-length format; US$3,000 regular order value. |
| Quotation basis | Alloy, media construction, wire or stock thickness, delivery format and quantity. |
Include these details when discussing your requirements.
Moving belts renew the filtering surface in continuous screen-changing equipment.
Paired weave and support dimensions integrate the belt into the melt-flow path.
Belt construction and active area are selected for the contaminant load of recycled melt.
Reverse Dutch weave places a dense array of finer warp wires against fewer, heavier weft wires. The longitudinal wire system supports belt travel through a screen changer, while the woven passages provide the filtering surface. The belt combines the specified weave with a controlled width and clean edges for movement through the equipment.
Reverse Dutch weave uses a denser array of finer warp wires and fewer heavier weft wires. Plain Dutch weave uses coarser warp wires and densely packed finer weft wires.
The first diameter is the warp wire; the second is the weft wire. The mesh counts use the same order.
The screen-changer guides, sealing surfaces and feed mechanism determine installed width. The table shows the width range of each weave.
Send the machine drawing or sample dimensions, full weave designation, wire pair, thickness, belt width, roll length and winding direction.
Explore related products and technical guidance.
Define the dimensions, media, joints and inspection records before confirming the order.
