Custom 750 GSM PTFE Filter Bags Completed for a Customer in Peru
In September 2026, Qingdao Star Machine Technology Co., Ltd. completed and packed this custom batch for the Peru customer. The finished bags use PTFE needle-punched felt with PTFE emulsion impregnation, and come with reinforced bag top and bag bottom. The order was made to the customer's dimensions.
What was customized for the Peru order
The requested finished size was 150 x 3680 mm. A stainless steel snap band was fitted at the opening to support installation and sealing at the tube sheet. These details matter because a bag that is too long, too short or poorly seated can rub against the cage, fold at the bottom or allow dust to bypass the seal. For a repeat order, dimensions and top construction deserve the same attention as the fabric name. This made-to-drawing approach also helps maintenance teams replace older bags when equipment records are incomplete. A clear drawing or returned sample lets us check the fit before manufacturing and keep the replacement discussion focused on the actual collector.
PTFE Filter Media Parameters
| Material Parameter | Value |
|---|---|
| Material | PTFE needle-punched felt with PTFE emulsion impregnation |
| Nominal media weight | 750 g/m2 |
| Tested grammage | 765 g/m2 |
| Thickness | 1.11 mm |
| Continuous operating temperature | 240 C |
| Brief exposure temperature | 260 C |
| Heat shrinkage | Warp and weft each below 1 percent after 250 C for 24 hours |
Why is PTFE considered for demanding dust collection
PTFE filter media is commonly considered for hot or chemically demanding dust streams where ordinary fibers may age too quickly. Its value is strongest when the fabric, sewing construction and hardware are selected as one package. A buyer should check normal and peak temperature, corrosive components, dust abrasiveness, condensation risk and pulse-cleaning conditions before approving a replacement. PTFE is a material choice, not a substitute for matching the bag to the process.
Why do bag dimensions and snap bands matter
Long filter bags need stable construction through handling, installation and repeated cleaning cycles. The 150 x 3680 mm size is made according to end user's requirements, and PTFE bags are all come with SS snap band. We confirm these details before production so the customer does not have to adapt the collector around an off-size bag.
After production, the bags were folded and packed into cartons as shown in the package photo.
What should buyers send for a custom PTFE filter bag
Buyers preparing a PTFE filter bag inquiry can send a drawing, a used sample or a dimension sheet. The most useful details are bag size, top and bottom style, cage size, snap-band material, media weight, operating temperature, gas composition, dust type and quantity. Star Machine can coordinate the replacement around those confirmed inputs and provide a clear specification for approval before production.
