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Your Trusted China Mechanical Seals Manufacturer

7-20 Days Fast Delivery
Low MOQ Accepted
99% Repeat Order Rate
Factory Direct Price
OEM Customization Supported
25 Years Industry Expertise

Who We Are?

For nearly 25 years, we’ve engineered reliability into every mechanical seal. As a leading China mechanical seals manufacturer and global Mechanical Seal Supplier, we solve your toughest challenges: delivering high-performance seals at competitive prices, backed by rapid supply from our 22000 ft² strategic warehouse.

Why choose us for your supply?

1、Full range of mechanical seals

Offering standard mechanical seals and customized OEM pump seals — covering all major brands replacements to meet diverse needs.

2、Flexible OEM customization

Rely on our experienced R&D team and production system to provide non-standard OEM customization services.

3、Strict quality control & fast delivery

Using high-quality materials that meet ISO standards, we ensure reliable and durable products with efficient production and on-time shipment.

4、Rapid Supply Solutions

Our factory features a 22,000 sq ft warehouse, which enables us to respond quickly to client orders and address their supply chain challenges.

PRODUCT

cartridge mechanical seals

Cartridge Mechanical Seals
GW80

Single-Spring Mechanical Seals
Multi-Spring Mechanical Seals

Multi- Spring Mechanical Seals
GW68

Wave Spring Mechanical Seals
metal bellow mechanical seals

Metal Bellow Mechanical Seals
PTFE bellow mechanical seals

PTFE Bellow Mechanical Seals
elastomer bellow mechanical seals

Elastomer Bellow Mechanical Seals
stationary seats

Stationary Seats
Grundfos pump mechanical seals

Grundfos Pump Mechanical Seals
OEM mechanical seals

OEM Mechanical Seals
Flyght pump mechanical seals

Flygt Pump Mechanical Seals

what our clients say

Hear from our global buyers about their experience with our products and services.
Real feedback that reflects our commitment to quality and trust.

64e3254042fe848004

We were impressed with the product and the packaging. We should have your product in service in the near future.

--Brennan
64e3254042fe848004

Among all factories we visited in China, yours was the most clean and impressive. We look forward to establishing a long-term partnership with you.

--Mehmet
64e3254042fe848004

Compared to others I've purchased from, your product stands out for its superior quality. This is the best one yet – great job!

--Mustapha
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FAQ

Frequently Ask Questions
Custom Mechanical Seals

*For price\packaging\payment and other questions please refer to “service- Frequently Asked Questions”
Need a Custom Solution? Let me know if you’d want a version with your company logo/branding!
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Q1: Do you offer customization service?

Yes, we do! We provide one-stop customization solution for you, from the product design and manufacturing to packaging and logistics to make your sourcing effortless.

Q2: What information is needed for a custom seal quote?

Please provide these details:
- Equipment: Pump model
- Drawing: shaft size, diameter (if no drawing, please send the sample)
- Operating Conditions: Pressure, temperature, speed (RPM), fluid type (including abrasives/% solids)
- Seal Requirements: Materials (face, elastomers, springs), design type (single, double, cartridge), certifications (API 682, ISO 21049, etc.)
- Quantity & Target Lead Time

Q3: What materials can be customized?

We offer:
- Face Materials: Silicon Carbide, Tungsten Carbide, 99% Ceramic, Carbon Graphite
- Elastomers: FKM (Viton®), EPDM, NBR, HNBR, CR, PTFE, FFKM (Kalrez®)
- Metal Parts: SS304, SS316, 904L For other materials please quote.

Q4: Can you comply with international standards?

Yes. We certify seals to the standards your required, such as:
- FDA/EC1935 (food/pharma)
- C.O.C (Certificate of Conformity)
- API 682 (refineries/petrochemical)

Q5: What’s the typical lead time for custom seals?

Typically, 30 days, including prototype and production (varies by complexity/quantity) *Expedited options available for urgent needs.

Q6: Do you offer small MOQs (Minimum Order Quantity)?

We accommodate low-volume orders (≥10 units) for prototyping and niche applications. Bulk orders (>100 units) qualify for tiered pricing discounts.

Q7: How do you ensure quality for custom designs?

- Design Validation: CFD/FEA analysis (from outside)
- Testing: Simulated operational tests (pressure, temperature, leakage checks)
- Documentation: Material certs (MTRs), inspection reports
- Warranty:12-18 months against manufacturing defects

Q8: Can you reverse-engineer obsolete or damaged seals?

Yes. Send us a sample (even damaged) or detailed drawings. We’ll replicate or improve the design with modern materials/engineering.

Q9: What export terms do you support?

- Shipping: EXW, FOB, CIF, FCA
- Payment: T/T, West Union, PayPal (for samples), VTB
- Packaging: ploywood crates, anti-corrosion protection, customized labeling

Q10: How are costs determined?

Costs depend on:
- Material selection
- Design complexity
- Testing/certification requirements
- Order volume
Contact us for a project-specific quote.

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