Aldoks vs C55 vs C60: Choosing the Right Mullion Connector

Main Aluminum Profile Systems in Turkey

The most widely used profile systems in the Turkish joinery sector are Aldoks, C55, and C60. Each has its own unique internal chamber geometry, wall thickness, and application area.

Aldoks Profile System

Aldoks is a profile series preferred particularly in lightweight commercial applications and modular systems.

**Narrow Series**:

Slim profile cross-section

Fly screens, interior partitions, showcase trims

Compatible with Aldoks narrow mullion connector

**Wide Series**:

Larger internal chamber

Main door frames, wide storefronts

Compatible with Aldoks wide mullion connector

**Allen System**:

Clamping with Allen key instead of screws

Advantageous in modular systems requiring assembly/disassembly

Uses Aldoks Allen connection

C55 Profile System

C55 is the standard choice for mid-segment structural applications.

55mm width reference

Non-thermally broken (single glazing or thin insulation)

Office partitions, retail storefronts, interior doors

**C55 mullion connector**: 100% geometric fit, high sheet steel strength

C60 Profile System

C60 is Turkey's most widely used non-thermally broken profile system.

60mm width reference

Wide internal chamber — suitable for heavy glass loads

Shop storefronts, office building entrances, large windows

**C60 mullion connector**: Sheet steel body, optimized screw holes

Which System to Choose?

| Application | Recommended System | Connector |

|---|---|---|

| Lightweight partition / fly screen | Aldoks Narrow | Aldoks Narrow Mullion |

| Heavy main door | Aldoks Wide | Aldoks Wide Mullion |

| Modular stand | Aldoks | Aldoks Allen |

| Office partition | C55 | C55 Mullion |

| Retail storefront | C60 | C60 Mullion |

| Insulated window | Thermally Broken | L Mullion |

Direct Factory Supply Advantage

At Hira Metal, we manufacture fasteners in standard mold dimensions for all the above systems. We offer the most competitive factory pricing for bulk orders.