Air-jet loom profile reeds

Published specifications

Values below come from the maintained catalogue record. The guide review date does not renew an earlier specification: read the dated source notes and confirm a current, matched configuration before comparing products.

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• Five loom families named on sheet 06
• A separate double-air-channel version for terry weaving
• Profile shape follows the loom's weft-insertion design

Sheet 06 of the catalogue names five air-jet loom families: Picanol, Tsudakoma, Toyota, Sulzer/Somet and Dornier. Each name marks the loom the profile was shaped for. Read them as Dingfeng's own fitting references and ask which loom models and builds each version covers.

The same sheet adds a double-air-channel terry reed. If you weave terry, say so at the start, because a standard version for flat fabrics is a different part.

Dingfeng's note on reed use explains that the profile shape follows the loom's weft-insertion design, and it advises against swapping reeds between different air-jet looms. A reed that sits well on one machine can disturb the air path on another, so the loom model is the first thing to settle. [1] [3]

Sheet 07 shows profile cross-sections, a side view and a table of basic dimensions. The drawing labels overall height h1, channel height h2, channel width k and further profile measures. Many rows carry more than one value, which means one loom family can take several reed variants.

The rows below show a few of the published h1 and k values. They help you see which variant questions to ask. The sheet carries no date and does not tie every combination to a named loom model or revision, so the full drawing for your order comes from Dingfeng. [2]

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Preparing the request

A good reed enquiry covers the loom and the cloth. Give the loom make, the full model and build, the marking on the reed you use now, and whether you want a like-for-like replacement or a reed for a new fabric. Attach an authorised drawing, or agree with Dingfeng how a reference sample will be measured. Photos help with orientation, but dent spacing, channel geometry and mounting tolerances have to be measured.

State the dent requirement together with its counting length or unit. A bare number can be read on two different bases, and the mistake only shows when the reed reaches the loom. Add the working width, the yarn and fabric details that matter for the job, and how many reeds of each variant you need.

Ask Dingfeng to mark the accepted dimensions and any deviations on the drawing it returns, and to list the points that still depend on a sample. Material, finish or an inspection certificate for the delivered reeds should be written into the request, since the family sheet does not cover them. [2] [3]

Dingfeng's use note names the points to inspect: dent evenness and condition, reed structure, alignment, air-channel dimensions and, where the equipment exists, airflow. It leaves the pass limits to each installation. Set those limits with Dingfeng before the order, then run the acceptance check in the four stages below. [3]

1. Measure the delivered reed

   Match the reed marking and drawing revision to the order. Measure the agreed critical dimensions, look for bent or damaged dents, and compare against the drawing tolerances.

2. Confirm the fit

   Have a qualified loom technician mount the reed following the instructions for your loom and reed. Passing the measurements is the first gate; the fit on your own weft-insertion setup is the second.

3. Weave with it

   If you need a weaving trial, fix the loom setup, yarn, fabric and running conditions in advance. Record the agreed fabric and running results and any faults. A short idle run is no substitute for production conditions.

4. Lock the reference for reorders

   File the accepted drawing, the reed marking and the trial record. Ask Dingfeng to seek your approval before any later change or substitute, so each reorder points to the reed you tested.

Heavy loads, stacking and any knock to the air channels can bend reed dents, Dingfeng warns. Ask for packing that shields that zone, and keep the variant marking on each reed through storage. A reed made exactly to the drawing can still be rejected if it arrives with bent dents.

The use article also gives installation and workshop settings. Those suit Dingfeng's general case. For setting up your own machine, follow the manual for your loom and the approved reed. [3]

To compare quotations fairly, line up the same items in each: drawing revision, dent requirement with unit, quantity per variant, material and finish, inspection record and packing. List any sample approval or trial support separately. A lower unit price only means something when the technical scope matches.

The catalogue gives no price, lead time, minimum order or warranty term, and makes no figure-based claim about airflow or fewer fabric defects. Ask Dingfeng to quote the commercial terms for your order. If a supplier offers an improvement percentage, ask for the original reed, the loom conditions and the measuring method behind it. [1] [2] [3]