The Block Stem device locks the tractor's steering.
 A new low-cost solution to the ongoing problem of machinery theft has been launched by a West Midlands businessman. The Block Stem agricultural and plant security system is suitable for tractors, construction plant or any other self-propelled machine with an exposed power steering ram.
    Imported from Italy, the Block Stem system costs from only £240 plus VAT, and is available with a five-year warranty and a money-back guarantee in case of any failure. It has recently received full Thatcham accreditation, and approval is also being sought from the NFU Mutual to qualify the system for discounts on insurance premiums.
    Manufactured in two sections from very-heavy-duty steel, the tamper-proof Block Stem simply slots together over the hydraulic steering axle ram of any self-propelled machine, and is locked in place with a unique key when the wheels are at full lock.
    Once fitted, the unit not only acts as an effective visual deterrent; it also means the vehicle can only go round in circles, thus preventing the vehicle from being loaded or driven away, even if the thief has the ignition key.
    Block Stem is available in different lengths up to 220mm and diameters from 22 to 50mm. These dimensions fit almost all available makes of hydraulic steering ram on the market, but individual units can also be made to order.
    "Block Stem is already established in Europe, where it qualifies through the Groupama insurance company for up to 30 per cent discount off premiums when it is fitted," Richard Baxter of sole agents Derwent Trading International Ltd, of Wolverhampton, said.
   
For more information call Derwent Trading International Ltd on 01902 744475.