Guide to ring binder mechanisms

We offer 3 different ringed mechanisms. 2 ring and 4 ring for International "A" sized paper (A4, A3 etc) and also 3 ring binder mechanisms for American sized paper (8.5" x 11" Letter).

These are all "D" ring mechanisms and come in different sizes. We also the option of having your binder mechanism painted in a black powder coat.

Two 'D' Ring Mechanism

Available in the following sized mechanisms - Please note these sizes do not relate to the physicall size of the binder mechanisms, but to its capacity.

10mm, 25mm, 30mm, 35mm, 40mm, 50mm, 65mm capacity

Capacity Explained
Luxury 4 ring binder mechanism in quality ring binder

Four 'D' Ring Mechanism

Available in the following sized mechanisms - Please note these sizes do not relate to the physicall size of the binder mechanisms, but to its capacity.

10mm, 25mm, 30mm, 35mm, 40mm, 45mm, 50mm, 55mm, 65mm capacity

Capacity Explained

Three 'D' Ring U.S. Mechanism

This is mechanism is only available when ordering American sized products.

Available in the following sized mechanisms - Please note these sizes do not relate to the physicall size of the binder mechanisms, but to its capacity.

25mm (1 inch), 40mm (1.5 inch), 50mm (2 inch), 55mm (2.5 inch), 65mm (2.5 inch) capacity

Capacity Explained

'Q' Ring Binder Mechanism

The largest of all our binder mechanisms and available as a 2 or 4 ring binder. As such we only recommend them for use in our box binders, as the weight of contents can become unwieldy in a standard ring binder cover. The 2 rings advantage over the 4 is that material (pages) are easier to turn when using 2 rings.

Available in the following sized mechanisms - Please note these sizes do not relate to the physical size of the binder mechanisms, but to its capacity.

65mm, 80mm, 100mm capacity

Capacity Explained

'O' Ring Binder Mechanisms

Not a binder type we commonly get asked for, but it is one we can certainly do.
We think they are ideal for presenting as the pages will easily slide over the rings.
The mechanisms are usually mounted on the spine of the binder cover.