Why SD-SWIVELES

Precision Rotary Joints · Quality Driven Innovation

From precision machining to seal testing, every step follows international standards (ISO 9001, CE, ATEX) — delivering reliable fluid transfer solutions for paper, steel, chemical, rubber, and plastics industries.

Precision Machining · Micron Tolerances

High-precision CNC machining centers with micron-level tolerances ensure rotational stability and seal integrity, even at high speeds and demanding operating conditions.

High-Performance Materials · Corrosion Resistant

316L stainless steel, alloy steels, silicon carbide, and carbon graphite — selected for maximum corrosion resistance, wear resistance, and compatibility with steam, hot oil, water, and air.

Advanced Sealing · Low Leakage · Long Life

Balanced seal design with silicon carbide/graphite seal rings delivers ultra-low leakage rates under high-temperature and high-pressure conditions, ensuring extended service life and reduced maintenance.

Engineering Experts · Custom Solutions

20+ years of rotary joint engineering experience — offering customized design, sizing guidance, material selection, and on-site technical support for your specific application.

Our Products

Rotary Joints for Every Industrial Application

Standard and custom-engineered rotary joints for steam, water, oil, air, and chemical media.

Steam Joints

For paper mills, rubber curing, and textile drying — high-temperature steam transfer.

Water Joints

For cooling rolls, plastic extrusion, and steel mills — reliable water circulation.

Hot Oil Joints

For rubber mills, calenders, and heat transfer systems — high-temperature oil transfer.

Air Joints

For pneumatic clutches, brakes, and air-powered equipment — reliable compressed air supply.

Chemical Joints

For corrosive media in chemical processing — with PTFE seals and corrosion-resistant materials.

Custom Solutions

Engineered to your exact specifications — special sizes, materials, and sealing configurations.

rotary joints

SD-SWIVELES — Precision Rotary Joint Solutions
Engineered for Reliability

About Us

Engineering Rotary Joints Since 2000

SD-SWIVELES specializes in the design and manufacture of high-performance rotary joints and unions for fluid, air, and hydraulic transfer. Our products excel in high-speed (up to 10,000 RPM), high-pressure (up to 350 bar), and wide-temperature (-40°C to 400°C) environments. We serve industries including steel, paper, wind energy, and injection molding.

  • 20+ years of rotary joint engineering expertise
  • ISO 9001, ISO 14001, CE, ATEX certified
  • Materials: stainless steel, carbon steel, and alloy options
  • 15+ patented sealing technologies (mechanical seals, O-ring, PTFE)
  • Customizable designs for OEM and retrofit applications
Explore Solutions
Technology

Rotary Sealing Technology

Innovative seal designs and material engineering for maximum reliability and performance.

Balanced Seal Design

Hydraulically balanced seal faces reduce wear and extend service life — even under high pressure.

Advanced Materials

Silicon carbide, carbon graphite, tungsten carbide — optimized for your specific media and temperature.

Precision Manufacturing

CNC grinding and lapping to Ra 0.1 μm surface finish for minimal leakage and maximum seal life.

Testing & Validation

Every rotary joint is factory-tested for pressure, temperature, and leakage before shipment.

20+ Years of Rotary Sealing Innovation
How It Works

From Inquiry to Installation in 4 Steps

We partner with you to deliver the right rotary joint solution for your application.

1
Submit Your Inquiry

Share your application details — media, temperature, pressure, speed, and connection sizes.

2
Engineering Review

Our engineers analyze your requirements and recommend the optimal seal design and materials.

3
Custom Design & Manufacturing

We engineer and manufacture your rotary joint with precision CNC machining and assembly.

4
Testing & Delivery

Every unit is factory-tested before shipping via express, sea, or air to your location.

Need a Rotary Joint Solution?

Get expert guidance on the right rotary joint for your application — standard or custom-engineered.

Request a Quote