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We have introduced the Bolt Down Hole Source 5500LL (long life) Airgun. Replacing the
5500, the 5500LL has many new internal improvements making it a more reliable energy
source for cross hole and up-hole surveys. For the 5500LL Bolt have utilised their
patented Long Life technology which is used in a number of their guns.

Supplied with typically 100m of cable, this light-weight energy source can use a variety
of chambers from 1-10 Cubic inch whilst staying within the guns overall diameter. Its
light-weight allows for easy deployment.

When a portable configuration is required standard diving cylinders are used as the source
of air, however this can easily be modified to work with a compressor for larger operations.

Specs.

Diameter:
Body length:
Cable length:
Chamber capacity:

Allied Associates
Concept House, 8 The Townsend Centre, Blackburn Road,
Dunstable, Bedfordshire, ENGLAND, LU5 5BQ
Telephone: +44 (0) 1582 606 999
Facsimile: +44 (0) 1582 606 991