Holtwood Marketing Ltd. The Survey Centre, Meridian House, Stanney Mill Road, Little Stanney, CHESTER CH2 4HX Tel: 01622 710921  Fax 01622 717945 e-mail

Mounting Systems

TUNNEL SYSTEM of steel wall plates and demountable instrument tables for surveying in tunnels. Used with great success on London's Jubilee Line Extension. Centering is to better than 0.1 mm. Cat No. CTWBP wall plate CTWTA demountable table
SHAFT PLUMBING BRACKET specially made to the design of London Underground Limited, clamps to the wall of shafts.
PILLAR PLATES made of stainless steel are made to be cast into or screwed into concrete pillars. Fitted with 5/8 thread and level point, can be fitted with a Leica-type adapter. Cat No. SSPILPL

If you do not see the marker you are looking for... please let us know. We have the facilities to produce markers to your - or our - original design, and have been doing so for a number of years. These include many projects here in the U.K., and also overseas.

Industrial measurement frequently requires special targets and markers, and we have been involved in producing such items for use in both steel and glass factories.

Monitoring ground movement both on and below the surface can call for a variety of special markers, some of which are designed to move, and others which must remain stable. We supply Feno and Berntsen markers and other measuring systems  which can be used for such tasks, please ask for details.