Dublin 355 Series Large Rotary Union for Air Replacement – OEM Equivalent

Description

Looking for a reliable, affordable alternative to the original Deublin 355 Series Rotary Union? The Dublin 355 Series Rotary Union is a single-passage rotary joint designed to transfer water, coolant, air, or hydraulic oil between stationary and rotating components. Engineered to operate at high speeds and pressures, this rotary union is ideal for demanding environments like CNC spindles, machining centers, and rotating equipment.

Our product offers a durable, precision-engineered design inspired by the trusted Dublin original while providing an affordable alternative ideal for budget-conscious buyers seeking performance without compromise. Our Union delivers the same high-performance standards with unbeatable pricing—perfect for CNC machinery, automotive manufacturing, textile production, and other industrial fluid transfer systems. We offer compatible, high-quality alternatives to OEM Deublin products—manufactured with precision, tested for reliability, and priced to save you money.

Key Features of Dublin 355 Series Rotary Union

OEM-Compatible Design

Fully interchangeable with Deublin 355 Series Rotary Unions. No modifications needed for installation—just plug and play. Our product faithfully replicates the reliable Dublin 355 design but at a significantly lower price, balancing quality and affordability.

Durable Construction

Constructed from hardened carbon steel or corrosion-resistant stainless steel. Designed to handle high-speed rotary operations with minimal wear. Crafted with industrial-grade forged brass housings and stainless steel rotors, ensuring corrosion resistance and long-lasting durability even in harsh environments.

High Pressure & RPM Capacity

Supports pressures up to 150 PSI and speeds up to 3,000 RPM, suitable for various high-speed applications.

Versatile Media Compatibility

Compatible with a wide range of media, including coolant, water, hydraulic oil, and compressed air.

Low Maintenance, Leak-Free Operation

Features balanced mechanical seals, precision ball bearings, and a compact body for long-lasting, leak-free performance.

Applications – Where the Dublin 355 Series Rotary Union Excels

The Dublin 355 Series Rotary Union is engineered for versatility and durability, making it ideal for a wide range of rotating equipment applications across industries. Whether you’re working with coolant, water, compressed air, or hydraulic oil, this rotary union ensures uninterrupted media flow while maintaining a secure seal under high pressure and rotation.

🔩 CNC Machining & Spindle Cooling

Used extensively in high-speed CNC machining centers, this rotary union allows efficient coolant flow through the spindle to cool cutting tools. It enhances tool life, reduces thermal distortion, and improves surface finish quality.

🏭 Automotive Assembly Lines

From robotic arms to rotating tire inspection equipment, the 355 Series ensures leak-free air and fluid transfer, supporting precision tasks in automated automotive manufacturing systems.

🧵 Textile Machinery

Textile machines rely on continuous rotation and stable fluid supply. This rotary union ensures smooth fluid circulation for calendering rolls, dyeing drums, and spinning mechanisms.

📄 Paper & Printing Industry

Ideal for drying cylinders, steam rolls, and ink application systems, the union supports continuous rotation under pressure while ensuring ra eliable flow of thermal oil, water, or air.

💨 Industrial Air Supply Systems

Moreover, operators rely on this model in pneumatic systems to efficiently supply compressed air to rotating platforms and tools used in manufacturing or packaging lines.

🛠 Other Uses

• Milling, Drilling, and Tapping Heads
• Rotating Workholding Fixtures
• Hydraulic Rotary Tables
• Automated Welding Systems
• Wind Turbines & Renewable Energy Equipment

📌 No matter the application, the Dublin 355 Series Rotary Union reliably delivers efficiency, reliability, and durability. Moreover, it maintains superior performance even in the most demanding industrial environments.

Why Choose our Dublin 355 Series Rotary Union?

Our Dublin 355 Series Rotary Union is engineered with the same precision as premium brands but offered at a price that suits your budget. Ideal for OEMs, machinery rebuilders, and distributors who demand reliable performance without the premium cost.

OEM-Compatible, Plug-and-Play Installation

Our rotary unions are designed as direct replacements for Deublin 355 models. No adapters, no modifications—just fast, hassle-free installation.

Cost-Effective Without Compromising Quality

We offer high-performance alternatives at a fraction of the OEM price, helping you reduce operating costs without sacrificing performance or safety.

Built with Premium Materials

Our unions are made using hardened steel or 316 stainless steel for high corrosion resistance. Internal components include balanced mechanical seals and precision bearings for long service life.

Fast Shipping & Global Availability

We maintain in-stock inventory for rapid dispatch worldwide. Whether you need one unit or hundreds, we ensure fast lead times and reliable delivery.

Customization Options Available

Need specific thread types, port sizes, or media configurations? We offer engineering support to tailor rotary unions to your exact equipment or OEM requirements.

FAQ of Dublin 355 Series Rotary Union

Q1: Is this a genuine Deublin product?

A1: No, this is a compatible replacement manufactured by our company. It is fully interchangeable and offers comparable performance at a lower cost.

Q2: Can I use this rotary union with coolant and compressed air?

A2: Yes, this unit is designed for both coolant and air applications.

Q3: Do you offer bulk pricing or OEM branding?

A3: Absolutely. We support bulk orders, private labeling, and custom design requests.