Deublin 2620-220-252 Rotary Union Alternative | Dual Passage CNC Rotary Joint Manufacturer

Description

The Deublin 2620-220-252 Rotary Union is a high-performance dual-passage rotary union designed for applications requiring simultaneous transfer of air and coolant in rotating systems.

If your business is facing high costs, supply delays, or discontinued models, our engineered alternative to Deublin 2620-220-252 offers a fully interchangeable and cost-efficient solution, built for real industrial conditions.

Unlike standard aftermarket copies, our rotary unions are developed through application-based engineering, ensuring long-term reliability in CNC machine tools and automation systems.

⚙️ Product Overview

Our alternative to the Deublin 2620-220-252 Rotary Union is designed for:

• Dual media transfer (air + coolant)
• High-speed rotating spindles
• Continuous industrial operation
• Precision CNC machining environments

This model features two independent passages, enabling simultaneous operations such as clamping/unclamping and cooling, which is essential in modern machining systems

⚡ Key Features

• Dual-passage design for multi-function fluid transfer
• Balanced mechanical seals for each channel (reduced torque & wear)
• Closed sealing system for zero leakage operation
• Dual precision bearings for high-speed stability
• Labyrinth protection system for extended bearing life
• Flange rotor connection for precise mounting

👉 These features are widely used in high-performance rotary unions to ensure stable operation under pressure and rotation

📊 Technical Specifications

👉 The 2620 series supports high flow rates and dual-channel operation, making it ideal for CNC machining applications

💡 What Makes Us Different

Unlike typical suppliers:

• We are engineering-first, not copy-based
• We optimize internal structure, not just external size
• We support custom redesign, not just replacement
• We provide direct factory communication, not reseller delays

👉 This is why many customers switch from original brands to long-term OEM cooperation with us

🔄 Replacement Compatibility

We provide direct replacement for:

• Deublin 2620-220-252
• Deublin 2620 Series (all variants)
• Compatible models with dual-passage design

Same installation dimensions
Same connection standards
No modification required

🏭Why choose us

1. Factory-Based Manufacturing

We are not a trading company — we are a production-driven rotary union manufacturer.

• 10+ years of manufacturing experience
• Exported to 30+ countries
• Serving CNC machine builders and automation integrators
• Proven replacement cases for Deublin 2620 series

👉 Our designs are validated through real-world operating conditions, not catalog replication.

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2. Engineering-Driven OEM Replacement

Most suppliers simply copy dimensions.
We focus on engineering equivalence:

• Full-dimensional reverse engineering
• Internal sealing structure optimization
• Material upgrades (seal faces, bearings)
• Media-specific performance tuning

👉 This ensures our products match functional performance, not just appearance

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3. Independent R&D Capability

We operate with an internal engineering workflow:

• CAD modeling + tolerance analysis
• Seal pairing optimization (Carbon / SiC / Ceramic)
• Thermal and pressure simulation
• Failure mode analysis (FMEA)

👉 This is why our products perform reliably in high-speed CNC environments, where standard copies fail.

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4. Strict Quality Control System

Each unit undergoes:

• Dynamic pressure testing
• Leakage detection
• Rotation balance testing
• Assembly tolerance inspection

We ensure every rotary union meets industrial-grade performance standards

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5. Advanced Customization Capability

We provide flexible OEM customization:

• Custom flange sizes and mounting dimensions
• Multi-passage (2–6 channels) design
• High-speed or high-pressure upgrades
• Special materials for aggressive media

👉 Ideal for replacing non-standard, modified, or discontinued Deublin models

🏗️ Typical Applications

The Deublin 2620-220-252 rotary union alternative is widely used in:

🏭 CNC Machine Tools

• Through-spindle coolant systems
• Tool clamping/unclamping systems

⚙️ Automation Equipment

• Rotary indexing tables
• Multi-channel fluid transfer systems

🔩 Industrial Manufacturing

• High-speed rotating machinery
• Cooling and pneumatic control systems

👉 Rotary unions are essential components that enable fluid transfer between stationary and rotating parts under pressur

FAQ

Q1: Can your product fully replace Deublin 2620-220-252?

Yes, it is designed for 100% interchangeability and equivalent performance.

Q2: What is the advantage of dual-passage rotary unions?

They allow simultaneous transfer of two different media, improving efficiency.

Q3: Do you support custom designs?

Yes, we provide full OEM customization based on drawings or samples.

Q4: What industries use this model?

Mainly CNC machining, automation systems, and industrial manufacturing.

Q5: How do you ensure reliability?

Each product undergoes strict pressure, leakage, and rotation testing.

📩 CTA

👉 Looking for a reliable Deublin 2620-220-252 rotary union alternative supplier?

Contact us now to get:

• Free technical consultation
• Fast quotation within 12 hours
• Custom-engineered solutions