Dust Collection Bag with Plastic Cover Plate for Robot Vacuums and Stick Vacuums

Dust Collection Bag with Plastic Cover Plate: Direct Answer

This dust collection bag with a moulded plastic cover plate is a replacement filter bag for robot vacuum auto-empty docks, cordless stick vacuums and commercial vacuum bins. It captures fine household dust at PM2.5 level, together with dust mites, pollen and hair, using a multilayer composite PP (polypropylene nonwoven plus meltblown) and antibacterial filter cotton. It is made by Jyntrel for appliance makers, vacuum brands and aftermarket suppliers who need a bag matched to a specific dock or bin geometry. The bag is built for the exhaust path: low resistance through the media, high dust holding, and a slide handle that closes the bag on removal.

Operating Conditions and Airflow Path

In an auto-empty dock the bag sits downstream of the bin and upstream of the dock fan. When the dock runs its empty cycle, the bag sees a short, high-velocity burst rather than a steady flow. The media therefore has to pass that burst without collapsing, and it has to keep passing it as the bag fills. A multilayer PP meltblown structure gives the fine-fibre layer mechanical support on both sides, so the pleat-free bag wall stays open under pressure pulses and the motor does not have to work against a rising pressure drop.

In a stick vacuum or a commercial bin the pattern is different: longer run times at moderate velocity, with coarse debris arriving first. High porosity in the composite keeps initial resistance low, and the same high dust holding capacity means resistance climbs slowly across the service interval. Because the cover plate is a rigid injection-moulded part, the bag seats flat against the dock port; the interface does not deform when the dock pulls vacuum, which keeps leakage at the gasket line to a minimum.

Environment matters as much as airflow. In humid rooms the PP composite resists moisture take-up better than paper-based bags. The slide handle is operated by hand at change-out, so the bag closes before it leaves the dock and captured dust does not re-enter the room air.

Core Performance

• Fine dust capture: multilayer composite PP meltblown media intercepts PM2.5-level particulate, dust mites, pollen and hair, limiting secondary contamination from the exhaust.
• Low airflow resistance: the high-porosity breathable design keeps pressure drop low so the dock or vacuum motor holds its collection suction.
• High dust capacity: a larger usable bag volume extends the interval between changes and reduces suction loss late in the cycle.
• Hygienic change-out: the sliding handle closes the bag mouth as it is pulled, so the user never handles the contents.
• Dock fit: the plastic cover plate and its opening positions are tooled to the customer's dock, in rigid cardboard or eco plastic injection options.
• Odour option: an activated-carbon composite version is available where the exhaust stream carries odour.

Selection and Customisation: the Data We Need

Bag selection starts with the dock, not the bag. Send the device model, or a drawing or sample of the cover plate with its clip positions and port opening. Then tell us the airflow the dock fan delivers during the empty cycle and the expected dust load per cycle. Operating conditions complete the picture: room humidity, typical debris (fine dust, pet hair, sand), and whether odour control is required. From that we propose media grade, bag volume and plate format, and confirm with samples before tooling.

Dimensions and the cover plate are 100% customised to the equipment. We tool rigid cardboard collars and eco plastic injection-moulded plates, and can add the sliding self-seal and an activated-carbon odour-control layer. Logo printing, retail packaging and carton design are part of the same customisation scope.

Parameters

Typical Applications

• Robot vacuum auto-empty docks that run a short, high-velocity empty cycle several times per cleaning run.
• Cordless stick vacuums where low resistance preserves suction as the bag fills.
• Commercial vacuum bins in offices, hotels and retail spaces with continuous moderate airflow.
• Households with pets or allergy sensitivity, where PM2.5, mite and pollen capture at the exhaust matters.
• Docks requiring odour control, using the activated-carbon composite version.

Manufacturing and Testing at Jyntrel

Jyntrel runs multiple automated production lines with monthly output reaching millions of pieces, and has exported filtration products to Europe, the United States, Japan and Korea for more than 20 years. That combination supports stable supply when a dock programme scales. Production takes place in a 50,000 m² plant in Zhongshan, Guangdong, China, including 6 clean workshops totalling 20,000 m², which limits dust and fibre cross-contamination during bag assembly.

Quality control follows IQC, IPQC and OQC stages from incoming media to packed cartons. The in-house laboratory is CNAS-accredited and can issue reports on filtration efficiency, dust holding capacity and airflow resistance. The company holds ISO 9001, ISO 14001 and ISO 45001 certification and has held IATF 16949 since 2024. Materials meet REACH and RoHS requirements and compliance documents are available. More than 1,000 filtration solutions have been developed to date, which is the basis for our OEM/ODM work on dimensions, structure, media grade, collar material, logo and packaging.

Share Your Operating Conditions

To quote accurately, send us the device or vehicle model, the cover plate size or a drawing, the airflow during the empty cycle or the water flow if relevant to your system, the operating conditions (humidity, debris type, temperature) and the quantity you expect per order and per year. Our engineering team will respond with a proposed media grade, plate format and sample plan. Start here: contact Jyntrel.