XHH Seals | High-Performance Hydraulic & Industrial Seals Supplier

About XHH Seals

XHH Seals is a professional manufacturer specializing in high-performance sealing solutions for demanding industrial environments. With years of engineering expertise, we deliver OEM-equivalent and custom seals that meet the highest standards of reliability and durability.

Our capabilities include reverse engineering from samples or drawings, CNC machining, and material formulation to match exact performance requirements. Whether you need replacements for Nordson®, Asymtek®, AMAT®, or Shimadzu® systems, we provide cost-effective, high-quality alternatives.

We serve global industries including semiconductor, LNG, automotive, pharmaceutical, and industrial automation — ensuring leak-free performance in extreme temperatures, pressures, and chemical environments.

Featured Products

Precision-engineered seals and components for critical industrial applications. All products are manufactured to match OEM specifications with superior materials and tolerances.

Baker and Otis Vee Packing

PTFE-based V-ring seal for dynamic rod applications requiring low friction and high wear resistance.

Agilent PN 5063-6589 Seal

Replacement seal for HPLC systems. Compatible with high-pressure liquid chromatography pumps.

Hydraulic Wiper Seals

Dual-lip wiper seals designed to exclude contaminants and retain lubrication in hydraulic cylinders.

Cryogenic LNG Seals

Spring energized seals rated for -196°C, used in LNG valves, pumps, and transfer systems.

Homag 4-012-01-0608 Seal Ring

Precision O-ring seal for Kal KFL Ambition series, 25.33x5.7mm, high-temp resistant.

Canted Coil Spring Energized Seals

Dynamic rod seals with canted coil springs for consistent radial force in vacuum and cryo apps.

PTFE Bronze 40% Wear Ring

High-load bearing guide ring with low friction, ideal for hydraulic and pneumatic cylinders.

PTFE Diaphragms for LC Pumps

Replacement diaphragms matching Shimadzu® PNs: 228-55272-41 & 228-55272-42. Chemically inert.

FEP Encapsulated O-Ring

For hot melt glue machines. Resists high temps up to 260°C and aggressive adhesives.

AMAT 3700-01485 Compatible Seal

Large dynamic radial seal for semiconductor equipment. Reverse-engineered from sample.

PTFE Pneumatic Piston Cup Seal

For Nordson®-type dispensing pumps. Stable under rapid cycling and high pressure.

Phenolic Wear Rings

High compressive strength and dimensional stability for heavy-duty hydraulic applications.

Industries Served

We deliver mission-critical sealing solutions across diverse high-tech and industrial sectors.

Semiconductor

AMAT-compatible seals, vacuum-rated components, and ultra-clean PTFE parts for wafer processing tools.

LNG & Cryogenics

Seals rated for -196°C, used in LNG transfer systems, valves, and storage tanks.

Industrial Automation

Pneumatic seals, wear rings, and guide elements for robotic dispensing and assembly systems.

Automotive

Hydraulic and pneumatic seals for manufacturing equipment and test benches.

Pharmaceutical & HPLC

PTFE diaphragms, pump seals, and fluid path components for chromatography systems.

Hot Melt Systems

FEP O-rings, heater seals, and pump kits for Nordson® and similar hot melt dispensers.

Advanced Seal Materials

PTFE Compounds

PTFE Virgin White (55 Shore D): Pure, chemically inert, excellent for food-grade and ultra-clean apps.
PTFE Bronze 40% (60 Shore D, Brown): Enhanced thermal conductivity and wear resistance.
PTFE Carbon 25% (60 Shore D): High compressive strength and low creep.

Wear Rings & Guides

POM Wear Ring: Low friction, high stiffness, ideal for medium-load applications.
Phenolic Wear Rings: Exceptional compressive strength for heavy-duty hydraulics.
PTFE Bronze Wear Rings: Self-lubricating, corrosion-resistant guide elements.

Frequently Asked Questions

Can you reverse engineer a seal from a sample?

Yes. Send us a drawing or physical sample, and we can reverse engineer and manufacture compatible replacement seals with precision CNC machining.

Do you offer OEM-equivalent seals?

Absolutely. We produce high-performance aftermarket seals compatible with Nordson®, Asymtek®, AMAT®, Shimadzu®, and many other OEMs.

What materials are used for cryogenic seals?

We use PTFE-based compounds with spring energizers, capable of operating reliably down to -196°C in LNG and industrial gas systems.

Are your HPLC seals chemically resistant?

Yes. Our PTFE diaphragms and seals are inert to solvents, acids, and bases commonly used in liquid chromatography.

Get in Touch

Need a custom seal or replacement part? Contact us with your specifications, drawing, or sample.

Email: xhh@xhh-smartech.com

No phone number available — please use email for inquiries.

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Professional Manufacturer of High-Performance Seals