A new flexo sleeve can arrive with the correct repeat and still create trouble if transport damage, a marked edge or an unsuitable first mounting goes unnoticed. The receiving check should happen while the packaging, delivery note and condition of the product can still be documented. Do not wait for a register problem on press to decide whether the sleeve arrived correctly.
Inspect the packaging before moving the delivery
Check every case, tube and protective wrapping at the receiving point. Look for a crushed end, puncture, wet area, broken support or sign that the package was dropped. Photograph all sides before the packaging is moved or opened, and link the images to the purchase order, delivery note and sleeve identification.
Polywest instructs customers to inspect transport packaging immediately on receipt. Its handling note says visible packaging damage should be recorded on the delivery note and reported with photographs within 24 hours. Follow the supplier's current commercial procedure, but make the plant record at once even when the outer damage appears minor.
Keep the damaged packaging until the sleeve has been inspected and the supplier has confirmed what evidence is needed. A clean unpacking area, adequate support and two trained people for a long sleeve reduce the chance of adding handling damage after delivery. The receiving record should distinguish transport condition from any mark created during unpacking.
Open the package without putting a blade near the sleeve
Do not run a box cutter along the length of a tube or through wrapping that lies against the sleeve surface. Polywest specifically warns against using a box cutter on the transport packaging, outer foil or paper wrapping because the product surface can be damaged. Use the plant's approved unpacking method and cut away from the product.
Support the sleeve while removing end protection so it cannot roll, drop or rest on one edge. Do not drag it across the floor or a metal bench. Place it on a clean stand or approved carrier and keep the identification visible. If the sleeve must wait before inspection, return the protection without sealing dirt against the surface.
Record who opened the package and when. This is not paperwork for its own sake. If a line, dent or chipped face is found later, the photographs and handling record help establish whether it was present at delivery or introduced inside the plant.
Complete the product check within the supplier's window
Polywest calls for delivered sleeves and adaptors to be checked for damage and correct function within three working days. Build that deadline into stores and production planning. A sleeve should not remain unopened until the first urgent job, when there is no time to investigate a fault or arrange corrective action.
Confirm the identification, repeat or circumference, face length, wall or construction reference and any special surface against the purchase order and supplier documents. Inspect both faces, the outer surface and the inner bore under good light. Record dents, cuts, raised edges, contamination, loose identification or any area that does not match the expected finish.
Do not decide acceptance from appearance alone. Plan a controlled first fit on the intended air mandrel or adaptor and, where the plant has the equipment, record the normal dimensional or runout checks used for that sleeve type. Use the supplier's tolerances and inspection method. An improvised measurement can create a number without proving fitness for production.
Condition the sleeve before the first fit
A sleeve moved from a hot vehicle, cold store or air-conditioned room should not be forced directly onto the mandrel. Polywest specifies a temperature of 20 to 30 degrees Celsius for trouble-free mounting and removal. Record the sleeve and room condition and allow the product to stabilise within the supplier's range before the fit check.
Inspect both front faces and edges of the air mandrel for damage, burrs and wear before mounting. Polywest notes that these conditions can damage the inner side of a sleeve or adaptor. Clean the mandrel by the approved method and make sure the air outlet holes are clear, the hose is not kinked or leaking and the connection is secure.
After the first row of radial air holes is covered, the sleeve should move with little force according to Polywest's instruction. If it does not, stop. Do not strike the sleeve or drive it on harder. Check air supply, hose restriction, outlet holes, mandrel condition, product temperature and the specified fit before deciding that the new sleeve is faulty.
Separate acceptance from the first production job
Give the first fit its own controlled job card. Record the sleeve ID, mandrel or adaptor ID, operator, temperature, air setting or verified supply condition, mounting effort and any contact mark. Remove the sleeve again using the approved air supply and inspect the bore and edges before it is released to plate mounting.
If the sleeve carries a mounted plate for its first print trial, use a known job or a defined acceptance form rather than an urgent new artwork. Record register, impression setting, speed range and any vibration or repeating print mark. Keep a labelled sample and do not correct a repeating fault with extra impression until the sleeve, adaptor, mandrel and mounting have been separated as possible causes.
Quarantine a sleeve when transport evidence, physical damage or first-fit behaviour is unresolved. Mark the status clearly so another shift cannot use it by mistake. Send the supplier the identification, order reference, photographs, measurements made with identified instruments and the exact mounting conditions. A short message saying the sleeve does not fit is not enough for a useful technical response.
Store the accepted sleeve so the receiving work is not wasted
Polywest recommends storing sleeves and adaptors upright, secured against falling and not stacked on one another. It gives a storage range of 15 to 30 degrees Celsius and 40 to 70 percent humidity. Use the current instruction supplied with the product, because the correct range or support method may depend on the sleeve construction.
Do not leave a sleeve resting under load on an air mandrel. Polywest warns that weight or pressure on a mounted sleeve can affect concentricity. Give every accepted sleeve a designated rack position, protective cover and visible ID, and keep it away from heat, direct sunlight, moving equipment and contamination from ink or cleaning chemicals.
Royal Coat represents Polywest sleeve and adaptor technology across India, Bangladesh, Sri Lanka, Nigeria and Kenya. For a new sleeve or adaptor enquiry, send the Royal Coat team the press, air mandrel or hydraulic shaft details, repeat range, face length, plate and tape system, intended speed, ink and cleaning system, storage conditions and the production issue the equipment must solve.
Questions from production and purchasing teams
What to ask about flexo sleeve delivery inspection
When should a delivered flexo sleeve be inspected?
Inspect the packaging immediately on receipt. Polywest's current handling note calls for the sleeve or adaptor to be checked for damage and correct function within three working days.
Can a box cutter be used to open sleeve packaging?
Polywest advises against using a box cutter on the transport packaging, foil or paper wrapping because it can damage the sleeve or adaptor surface.
Why should a sleeve be conditioned before mounting?
Polywest specifies 20 to 30 degrees Celsius for trouble-free mounting and removal. A sleeve arriving from a much hotter or colder location should be allowed to stabilise before the fit check.
What should be done if a new sleeve will not slide on with normal air?
Stop rather than forcing or striking it. Check product temperature, mandrel edges, air hose, leaks, outlet holes, air supply and the specified fit, then document the conditions for technical review.
What information should accompany a sleeve damage report?
Include the sleeve ID, order and delivery references, packaging and product photographs, condition found, identified measurements, mandrel or adaptor details and the exact first-fit conditions.