Professional Industrial Mechanical Seal Manufacturer & Exporter

We specialize in manufacturing, exporting and wholesaling a full range of high-performance industrial seals, covering every category you need for diverse industrial working conditions:

• Core product series: Single Spring Mechanical Seal, Balanced & Unbalanced Single Spring Seal, External Mounted Seal, PTFE Bellow External Mounted Seal

• High-end custom series: Cartridge Balanced Seal, Multiple Spring Balanced Seal, Dry Running Reverse Balanced Seal, Agitator Double Acting Unbalanced Seal, Single Conical Helical Spring Seal

• Special application series: Rubber Bellow Seal, Multi Spring Seal, Metal Bellow Seal, Elastomer Bellow Seal, Conical Spring Seal, Air Condition Compressor Seal, Auto Cooling Seal, Metallic Bellow Seal

Our single spring mechanical seals are fully compatible with world-renowned pump brands, including Flygt, Grundfos, APV, Grindes, Fristam, ABS, Alleeiler, EMU, GEA Tuchenhagen, Godwin, Hidrostal, Hilge, Johnson, Lowara, Waukesha, Vogelsang and more. We also support full customization: we can produce seals strictly according to your provided samples, engineering drawings, or design solutions tailored to your specific on-site working condition requirements.

Frequently Asked Questions

1. Q: Are you a factory or a trade company?A: We are a professional mechanical seal manufacturing factory based in Ningbo, China, with a dedicated top-tier international sales team. This integrated production-and-service model allows us to deliver direct factory pricing, strict quality traceability and full-cycle trade support for global clients.

2. Q: Can I get a sample before placing a formal order?A: Absolutely. Standard seal samples are available for your pre-order performance verification, and most of them are provided completely free of charge. You only need to cover the corresponding international shipping cost.

3. Q: Where is your factory located? How can I arrange a visit?A: Our production base is situated in Ningbo, China, a world-famous industrial manufacturing hub with extremely convenient international logistics. You can take a direct flight to Ningbo Lishe International Airport, or fly to Shanghai Pudong/Hongqiao Airport which is only a 2-hour high-speed rail ride away from our city. All overseas clients are warmly welcomed to visit our workshop, testing lab and production lines at your convenience, and we can arrange free pick-up service for you in advance.

4. Q: How does your factory manage quality control?A: Quality is always our top priority. We implement strict full-process quality management covering raw material incoming inspection, semi-finished product processing monitoring, and 100% finished product dynamic pressure test before delivery. Our factory has obtained ISO9001 quality management system certification, ensuring every seal meets consistent high performance standards.

5. Q: What is your standard lead time?A: For standard mechanical seals and compatible pump seals, our lead time is 10-20 working days after receiving your prepayment. For customized non-standard seals or large bulk orders, we will provide you with a precise optimized delivery schedule after confirming all technical details.

6. Q: What payment methods do you support?A: For small sample orders and their shipping fees, we accept both PayPal and T/T for your maximum convenience. For large-volume formal orders, we adopt T/T at sight as the standard payment term, and we can also discuss flexible payment solutions for long-term cooperative clients.

7. Q: Is OEM/ODM service available?A: Yes, we provide full-range OEM and ODM services for all our mechanical seal products. We can adjust materials, dimensions, packaging, brand marking and other details completely according to your requirements, to perfectly match your local market positioning.

8. Q: Can I purchase pumps or pump spare parts from your company?A: Certainly. Besides our full series of mechanical seals, we also supply complete pumps and supporting pump parts, including Lobe pumps, Compound & Homogeneous pumps, Homogenizing & Emulsification pumps and other related accessories, to support your one-stop procurement demand.