Adjustable Column Clamp Bars

In formwork concrete, single bar type adjustable column clamp is used popularly worldwide. What are column clamp bars? What are the sizes and types? Why it is so popular used? You will get answers here.
The adjustable column clamp bars are heavy-duty formwork clamps with slots, made by high-strength steel plates, they are used to form square or rectangular columns in concrete construction. Easy to use, saves time on concrete site and sturdy in use.

There are a lot types and sizes of the adjustable column clamps. In the next content, you will get more details.

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Dimensions of Adjustable Column Clamp Bars

Adjustable column clamp width is 2″(50mm), 2.5″(63.5mm) and 3″(76mm)
The thickness of the adjustable column clamp bars is 8mm to 10mm
The lengths of the column clamp bars are adjustable as the following table

Code	Overall Lengths	Column Size (mm)
WCCB01	965.2mm	254 – 609.6
WCCB02	660.4mm	152 – 305
WCCB03	1219mm	254 – 863.6
WCCB04	965mm	254- 609
WCCB05	1270mm	305 -914.4
WCCB06	1524mm	558.8 – 1168
WCCB07	1161mm	400 – 600
WCCB08	1361mm	500 – 800
WCCB09	1647mm	700 – 1000
WCCB10	1847mm	900 – 1200
WCCB11	2047mm	1100 – 1400
WCCB12	2247mmm	1300 – 1600
WCCB13	2447mm	1500 – 1800
WCCB14	2747mm	1900 – 2100

How to Choose Adjustable Column Clamp Bar Sizes

You can choose the adjustable column clamp bars according to your column sizes based on the above length table.
If you want to calculate the adjustable column bar size by yourself. You need to add a safety length of 350- 650mm longer than the maximum column sizes you want to use. The adjustable range of the column clamp is normally 300 – 610mm.

Types of Adjustable Column Clamps Bars

Adjustable column clamp bar types can be single bars or L-shaped.

Single bars are simple straight bars with slots on them. One set needs four pieces of the single adjustable column clamp.

L-shaped column clamps are fixed two singles together. One set of column clamp bars needs two sets of L-shaped adjustable column clamps.

Wedge pins are the fixing device in the adjustable column clamp bar assembly. The wedge pins can be fixed on the adjustable column clamp bars by chains. They can also be separated from the bars.