By:SourceFactoriesMaintenance teams and OEM buyers sourcing stainless steel quick-connect fittings for 4–12 mm pneumatic lines can now evaluate a rated 0.9 MPa option from Zhuji Kailun Hardware Products Co., Ltd. The quick plug straight through docking connector, listed…
Product Description
In pneumatic systems across manufacturing and processing machinery, the reliability of air-line connections often determines whether a production shift runs without unplanned downtime. Quick-plug straight-through fittings address that pain point by allowing rapid connection and disconnection of PU or nylon hose without tools, reducing changeover time and the risk of cross-threading common with threaded connectors.
The product under review is the Pneumatic Air Pipe Connector Manufacturer - Quick Plug Straight Through Docking from Zhuji Kailun Hardware Products Co., Ltd. Listed under Manufacturing & Processing Machinery and Other Manufacturing & Processing Machinery, this stainless steel pneumatic fitting is designed for clean, secure air delivery in automated equipment, assembly stations, and auxiliary pneumatic circuits. Its straight-through configuration maintains full flow with minimal pressure drop, making it a practical choice for both OEM builds and maintenance replacements.
Stainless steel construction suggests suitability for environments where corrosion resistance is a concern, though buyers should verify the specific alloy and surface finish for washdown or chemical exposure applications. Across global supply chains, quick-connect fittings support lean manufacturing by enabling line changes in seconds rather than minutes, a direct response to rising pressure to reduce unplanned downtime.
Technical Highlights
Specifications from the supplier's data sheet provide a clear picture for engineering evaluation. All figures are as provided by Zhuji Kailun Hardware Products Co., Ltd. and should be confirmed for specific applications.
Product Type: Pneumatic fitting, quick plug straight through docking
Material: Stainless steel
Pipe Size Compatibility: 4 mm, 5 mm, 6 mm, 8 mm, 10 mm, 12 mm
Fitting Type: PU type (push-to-connect)
Normal Service Pressure: 0 to 0.9 MPa
Maximum Service Pressure: 1.32 MPa
Application Hose: PU or Nylon hose
Ambient and Fluid Temperature: 0 to 60 °C
Unit Weight: 0.3 kg
Warranty: 1 year
Documentation: Machinery test report provided; video outgoing-inspection provided
Place of Origin: Zhejiang, China
The 0.3 kg weight and stainless steel construction suggest a robust design suitable for demanding plant environments, though buyers should verify surface finish and sealing performance under their specific temperature and pressure cycles. The six metric tube sizes cover the most common pneumatic tubing diameters used in light automation and general machinery.
For processing machinery applications, the 0–0.9 MPa normal service pressure aligns with standard compressed air systems, while the 1.32 MPa maximum provides a safety margin for pressure spikes. The 0–60 °C temperature range is suitable for most indoor manufacturing environments, but outdoor or high-heat applications may require alternative materials or derating.
Company Profile
Zhuji Kailun Hardware Products Co., Ltd. is a supplier based in Zhejiang, China, with a product line that includes hose and cable fittings, air hose fittings, hydraulic hose fittings, fasteners, and valves. The company's product portfolio indicates a focus on fluid and pneumatic connection components, positioning it as a potential single-source supplier for multiple fitting types in processing machinery assemblies.
The supplier provides machinery test reports and video outgoing-inspection for this connector, which can help buyers reduce incoming quality control time. However, buyers should request full documentation and, if possible, schedule a factory audit to verify production capacity and quality management systems before committing to volume orders.
Export & Logistics
This pneumatic fitting is sold as a single item, with packaging configured for individual piece handling. The listed unit weight is 0.3 kg, but the product data shows single volume and single gross weight as zero, which may indicate that export packaging dimensions are calculated at the carton level. Buyers should confirm packaging details—such as carton quantity, palletization, and any protective measures—directly with the supplier to accurately estimate freight costs and lead times.
Given the price range of US$0.15 to US$0.40 per piece, this connector is competitively positioned for high-volume procurement. Importers should consider requesting FOB or CIF quotes with specific port details from Zhejiang province, and inquire about available payment terms and any minimum order quantity. The provided video outgoing-inspection offers some assurance of pre-shipment quality checks, but an independent third-party inspection is still recommended for critical applications.
Lead time, carton quantities, and Incoterms are not published in the current product data; buyers should request these details directly from the supplier to build a complete landed-cost model. The Zhejiang manufacturing base offers proximity to major export hubs, which can shorten transit times for Asian and transpacific routes.
Action for Buyers
Category managers and sourcing directors evaluating this quick-plug connector should treat it as a candidate for standardized pneumatic fittings across maintenance, repair, and operations (MRO) inventories. The stainless steel material and 0.9 MPa normal service pressure align with typical factory compressed air systems, while the one-year warranty provides a baseline for vendor accountability.
To move forward, request the machinery test report, a dimensional drawing with exact tolerances, and a sample batch for on-site leak and pull-out testing. Compare the total landed cost against existing suppliers, paying attention to the pipe size coverage (4–12 mm) and the operational temperature range (0–60 °C). If the product matches your performance requirements, negotiate volume pricing based on the published range and secure written confirmation of warranty terms and lead time.
Because the supplier also offers hydraulic hose fittings and fasteners, buyers consolidating vendors may find value in qualifying this manufacturer for multiple component lines, reducing administrative overhead and potential supply chain complexity.
Buyer Checklist
- Does your application require a stainless steel fitting for corrosion resistance in a processing environment?
- Are your pneumatic lines within the 4–12 mm tube diameter range covered by this product?
- Will the operating pressure stay below 0.9 MPa normal service (1.32 MPa maximum)?
- Is the ambient and fluid temperature within 0–60 °C for continuous operation?
- Does the supplier's machinery test report and video outgoing-inspection meet your incoming QC requirements?
- Have you obtained a sample and confirmed push-to-connect compatibility with your PU or nylon hose brand?
Disclaimer
This article is based solely on product data provided by the supplier and has been prepared for industry information purposes. All specifications, pricing, and documentation details should be independently verified with Zhuji Kailun Hardware Products Co., Ltd. before procurement. No performance guarantees are implied, and buyers should conduct their own due diligence, including testing under actual operating conditions.
Related product: Pneumatic Air Pipe Connector Manufacturer - Quick Plug Straight Through Docking
