Trailer & Winch Solutions offer a range of duct equipment including, steel hinged bellmouths which are inserted into ducts and secured in position with an expansion bolt.The bellmouth minimises damage to the cable and the duct edges during cable laying operations. Standard sizes are SB1 55 – 63mm, SB2 76 – 82mm, SB3 89 – 95mm, SB4 97 – 104mm, SB5 115 – 124mm and SB6 146 – 155mm. Specials up to 300mm are available on request. For further protection and guidance of the cable, all the bellmouths above can be fitted with a Diablo Roller. Our range of wooden cylindrical duct brushes are fitted with steel rotating fixing eyes each end. Standard sizes are CDB1 – 57mm, CDB2 – 80mm, CDB3 – 86mm, CDB4 – 95mm, CDB5 – 108mm & CDB6 – 150mm. Duct proving mandrels are manufactured from polypropylene and are fitted with steel rotating fixing eyes each end. Standard sizes are DPM1 – 43mm, DPM2 – 70mm, DPM3 – 79mm, DPM4 – 83mm. Special are available on request and mandrels can be manufactured in steel if required.