Introduction of the compact Conjet Robot 322

2002-06-06 — Conjet AB will use the World of Concrete exhibition in Las Vegas to add the compact Conjet Robot 322 to its comprehensive range of high pressure water jetting equipment which selectively removes weakened and damaged reinforced concrete from numerous structures. The new Conjet Robot 322 is a remotely operated hydrodemolition robot aimed at smaller contractors entering the market.

The compact, lightweight Robot 322 is exceptionally manoeuvrable and ideal for working in confined spaces and areas inaccessible to larger equipment. It is very narrow and can pass through an 31.5in to 39.4in (0.8m to 1m) wide opening, depending on attachment tool, making the Robot 322 ideal for operating in tunnels as small as 5ft 7in (1.7m) diameter with rotor attachment, culverts, inside concrete box girder bridge decks and under bridge and quay decks. The Robot 322 is also exceptionally efficient for use in numerous industrial cleaning applications and has been designed to operate with existing 134hp to 470hp (100kW to 350kW) diesel driven high pressure pumps feeding water to the nozzle.

The Robot 322, on display on booth 2653 alongside the larger Robot 362, consists of a self contained, crawler mounted undercarriage, electrically powered with an integral control system. This allows progress of the hydrodemolition process to be remotely and safely controlled and monitored away from the hazardous cutting area. The Robot 322 can adjust the width of its undercarriage to improve stability when operating and is equipped with a single oscillating nozzle.

The nozzle, set at a predetermined angle of attack, is mounted on a traversing cradle running back and forth along a 5ft (1.5m) long feed beam. Safety is paramount which is why the entire nozzle assembly is covered by a protective shroud.

The feed beam is attached to an arm mounted on a rotating turntable fixed to the Robot’s crawler based undercarriage. The feed beam and oscillating nozzle can be replaced with an optional hydraulically driven rotor for cleaning and scarifying concrete surfaces.

The Robot 322 is very easy for the operator to use and optimise production. This ensures that only weak and damaged areas of concrete are selectively removed in a continuous, uniform and safe operation to a predetermined “quality depth” above or below any steel reinforcement, which, if exposed, is also cleaned of rust.

The robotised 322 tool carrier is easily adaptable to take a variety of hydrodemolition tools. It will also enable hydrodemolition contractors to mechanise and replace the far less efficient and less productive hand lancing and jack hammering techniques. Hand held methods are known to be exceptionally tiring, stressful, noisy and dangerous for operators to use. Removal of concrete with a jack hammer or hand lance is also much slower and not as selective as a Robot. In addition hand lances are very inefficient with their use of water and need far greater quantities than more effective and environmentally friendly Robots to remove a specific amount of concrete.

For further information please contact:

Lars-Göran Nilsson or Carl Strömdahl

Conjet AB
P.O. Box 507
S-136 25 Haninge
Sweden.

Tel: +46-8-556 522 40
Fax: +46-8- 556 522 60
E-mail: conjet@conjet.se
Internet: www.conjet.com

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