Profile: Whitney Engineering Ltd. specializes in handling equipment for construction and industrial applications. We provide sale & hire of both concrete and material handling equipment. The SG block grabs are manufactured from heavy duty box section steel, and are suitable for lifting unpalletized materials such as vertically steel strapped blocks, slabs & kerb stones. The SG80 block grab can lift packs with widths from 400 mm to 1100 mm, has adjustable supports for pack heights of up to a maximum of 800 mm, and has a SWL of 1800kg. The POB 4 gas bottle carrier is the safe method of storing and transporting four standard size 250 mm diameter gas bottles without the need for ratchet straps. The gas bottles are securely located by means of semi-circular supports with rigid locking bars.