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Curtain Wall Mullion Connection Sleeve

Precision-engineered internal connectors designed for seamless vertical mullion splicing and structural stability.

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Curtain Wall Mullion Connection Sleeve Featured Image
  • Aluminum Alloy 6063-T5/T6

    Material Grade

  • 3.0mm – 5.0mm

    Wall Thickness

  • 200mm – 400mm (Customizable)

    Standard Length

  • Mill Finish / Anodized

    Surface Treatment

  • 2-3 Weeks

    Lead Time

Introduction

Essential Structural Splicing Components

The Curtain Wall Mullion Connection Sleeve (also known as a sleeve core) is a critical internal component used to join vertical mullions in stick-built curtain wall systems. It provides the necessary structural continuity while allowing for vertical thermal expansion and contraction of the aluminum framework.

Benefits

Why Choose APEX Mullion Connection Sleeves

  • Enhanced Structural Load Transfer

    Engineered to effectively transfer wind loads and dead loads between mullion segments, ensuring the overall stability of the facade.

  • Thermal Expansion Accommodation

    Designed with precise tolerances to allow for the natural movement of aluminum profiles, preventing facade deformation or noise.

  • Corrosion Resistant Durability

    Manufactured from high-grade 6063-T5 aluminum, providing excellent resistance to oxidation and environmental wear within the wall cavity.

  • Precision Fit for Easy Installation

    Custom-extruded to match specific mullion profiles, reducing onsite labor time and ensuring a secure, rattle-free connection.

Custom

Customization & Material Standards

Our connection sleeves are available in a wide range of cross-sections to match standard and custom mullion depths. We offer various wall thicknesses to meet specific structural engineering requirements and building height demands.

Standard finishes include mill finish for internal use, but we can provide anodized or powder-coated options if the component is partially exposed. All sleeves are manufactured in compliance with international aluminum extrusion standards.

Applications

Related Applications

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FAQS

Frequently Asked Questions

Technical answers regarding the selection and installation of mullion connection sleeves.

How do I determine the required length of the sleeve?
The length is typically determined by structural calculations, usually ranging from 250mm to 400mm, ensuring sufficient embedment on both sides of the joint.
Can these sleeves be used for horizontal transom connections?
While primarily designed for vertical mullions, modified versions can be used for heavy-duty transom connections depending on the system design.
Do you provide custom shapes for proprietary profiles?
Yes, we can manufacture custom sleeve extrusions based on your specific mullion CAD drawings to ensure a perfect fit.
Is a thermal break included in the sleeve?
Sleeves are typically solid aluminum; however, they are installed within the thermal zone of the system to maintain overall U-value performance.
What is the typical clearance between the sleeve and the mullion?
We maintain a precise tolerance (usually 0.5mm to 1mm) to allow for smooth insertion while preventing structural play.
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