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NJPE flexible cnc precision machining hexagonal for air valve

High precision cnc machining connector for air valve


This product is used as the connector for the air valve for the new clean energy technology, The air is hydrogen; There are many inside holes, the inside holes are with small tolerance, smooth surface of Ra0.6, and cleanness of 0.01.


The side holes are made by the tailored profiled cutters.


This product is exported to France; the regular order quantity is 500pcs every month.


Our production manager ChenDinYuan and R&D Manager ZengJiuGuang are the leader for developing this product.


The 3D model is as below for the overview of the product.



Nanjing Precision Engineering Co., ltd

Product’s Parameters

1. Material:Aluminum 2017A T6 with material certificate and heat treatment certificate
2. Process:Plate+ cutting + cnc machining+ sand blasted+ clear anodization.
3. Service available:OEM, the client has provided STEP, CAD, and PDF drawings with us, our production and the quality control is according to the technical drawings seriously.
4. Roughness:Ra0.6 and Ra1.6
5. Tolerance:ISO2768-M/F with dimensions inspection report.
6. Dimensions:hex :45mm, length: 27mm
7. Traceability:Material heat no, production batch, delivery batch
8. Certification:ISO9001,SGS, Rohs
9. Net Weight:0.1KGS
10. Packing:inner: bubble poly bag; outer: carton box or poly wooden case/pallet, final: with # straps


Nanjing Precision Engineering Co., ltd

Production time for 500pcs

20-25 days

Payment Method

T/T bank, LC, Western Union Pay, PayPal, Cash...

Trade Incoterm



Small batch: express such as FedEx/ DHL/ UPS/ TNT/ EMS......

Bulk batch: by air& by sea in LCL and FCL

Logistics Service

Booking, Pick-up Arrangement, H.S CODE select, ETD and ETA notification......

Shipping Docs

Bill of lading, Packing List, Invoice, Co, Coo, Form A/E/F, Non-wood packing declaration......

After -sale service

Technology support, Inspection support, assembly support, custom clearance support......

Complaints and Claims

The complaints and the claims will be answered within 2 hours definitely

Intellectual Property Protection

Respect NDA Agreement Seriously


100% refund or replacement for nok pcs


You are always welcome to contact NJPE, we will reply to you within 8 hours absolutely after the receipt of your questions or enquiries.

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I am Cindy Fan,you please kindly send your inquriy to ,I will send you quotation with 2 hours, or contact me at Skype Cindy-fan, Wechat 86-13813884518, and Whatsapp 86-13813884518,thank you!