Alpro Door Closers

Pivox stocks the full Alpro PRO50 range of concealed transom door closers for single and double action aluminium commercial doors. Whether you need an Alpro transom door closer complete kit, an Alpro concealed door closer for a side load or end load application, or an Alpro commercial door closer for a DDA-compliant installation, the PRO50 series covers all configurations. Every Alpro transom door closer in this collection is supplied complete with pivot and arm, fixing pack, and comprehensive fixing instructions as standard.

Types and Models of Alpro Door Closers

The Alpro PRO50 concealed overhead transom door closer is available in variable spring strength (adjustable spring strength across sizes 1–3) and dummy configurations, with end load and side loading options. DDA-compliant 90° hold open side load variants are stocked alongside standard no-hold-open versions. All models are concealed within the transom header bar for a clean architectural finish on single or double action aluminium door installations.

• Alpro PRO50 variable power transom door closer c/w 51A4 pivot and 51A2 side load arm — 90° hold open, DDA compliant

• Alpro PRO50 variable power transom door closer c/w 51A4 pivot and 51A2 side load arm — no hold open

• Alpro PRO50 variable power transom door closer c/w pivot and arm — end load — 90° hold open

• Alpro PRO50 variable power transom door closer c/w pivot and arm — end load — no hold open

• Alpro PRO50 dummy transom door closer c/w pivot and arm — side load

• Alpro PRO50 transom door closer pivot — 51A4 standard bottom pivot assembly

• Alpro PRO50 transom door closer arm assembly — 51A2 side load arm, standard

Technical Specifications and Features

The Alpro PRO50 Alpro commercial door closer is independently tested to 250,000 double action cycles to EN1154, confirming its suitability for high-traffic commercial applications. Dual closing speed allows flexibility in closing — initial closing speed is factory preset, with final closing speed fully adjustable after installation. Variable power spring strengths across three sizes accommodate door widths from under 750mm (size 1, medium duty) to 1150mm (size 3), with maximum door weight rated at 100kg on standard pivot and 120kg on heavy duty pivot. Standard spindle length is 12mm, with extended versions available in 17, 22, and 28mm for various arms and spindle lengths applications. A 90° hold open facility is available on selected models. Each closer is supplied complete with a fixing pack containing the arm and pivot assembly, bottom pivot, and comprehensive fixing instructions, providing everything required for a complete installation from a single order.

Installation Methods and Options

The Alpro transom door closer is designed to be concealed within the transom header bar, providing controlled closing without a visible closer body on the door face. As a concealed door closer, the PRO50 is particularly suited to commercial aluminium entrance doors where aesthetics and performance are both required. Three installation configurations are available: side loading option with 51A2 arm and 51A4 pivot for standard stiles; end loading option with 51A3 arm and 51A4 pivot for roundnose stiles; and short side loading with 51A1 arm for use with a 65mm pivot and 51A5 F-bracket. The transom closer is suitable for single or double action aluminium door installations and can be configured for hold open or non-hold-open function. Adjustable spring strength allows the transom closer to be fine-tuned on site after installation.

Accessories and Spare Parts

Pivox stocks replacement items and accessories to support retrofit installations and ongoing maintenance of the Alpro PRO50 transom door closers range. Available components include the 51A4 standard bottom pivot assembly, 51A2 side load arm, fixing pack, and lock accessories for the full PRO50 product portfolio. Retrofit replacement items are available for existing installations where the original closer requires servicing or component replacement. Transom door closer spare parts including arm and pivot assemblies are held in stock for rapid dispatch.

Product Availability and Sourcing

Pivox supplies Alpro architectural hardware as part of its UK commercial aluminium OEM product portfolio, supporting access solutions and access control environments across commercial building and refurbishment projects. Alpro is distributed in the UK through IEC Limited as part of its electro-mechanical products and mechanical products portfolio, covering the full access control market segment. All Alpro PRO50 door closers are stocked in compliance with UK building regulations and government legislation on access control, including DDA-compliant configurations. Trade accounts are available for contractors and specifiers requiring ongoing access to Alpro commercial door closer stock with rapid order turnaround.