Petrel was founded in 1947. Initially, the company focused on general engineering work from the Bo-Kaap area of Cape Town, where the first workshop was located.
By the 1950s and 1960s, Petrel was well-known for repairing and manufacturing deck equipment for the fishing industry. During this time, Petrel became the first company to manufacture trawl winches in South Africa and pioneered the use of hydraulic drives for these winches.
Petrel continued to expand its range of fishing equipment and, by 1970, was the dominant manufacturer of deck machinery for the South African inshore fishing industry. In the mid-1970s, Petrel started exporting fishing equipment to the world’s largest fishing fleets on the west coast of South America, where it became a leading supplier
TNW 824- Triplex
The Petrel Trident is a three-roller net hauler designed for high-powered net hauling and high net traction. The higher-than-usual roller off-set results in greater rubber contact with the net, which leads to high grip and low wear through reduced slippage.
The hydraulic tilt cylinders move the head through a large angle which allows accurate positioning of the cork line during hauling. The rollers feature autoclave-cured, vulcanised rubber coating, a stainless steel slip ring and a large diameter roller top. The rollers are mounted on sealed roller bearings and are driven through an oil bath gearbox.
The Trident side plates are made from bead-blasted stainless steel which promotes easy sliding of the net over the side plates, resulting in low net wear.
Two and three speed step functions can be incorporated into the hydraulic drive system, which increases the net hauling speed.
Petrel offers Tridents with roller pulls ranging from 10 tons to 35 tons.
Knuckle Boom Cranes
The Petrel Knuckle Boom Marine Crane is a luffing and slewing marine crane with a knuckle boom for flexibility and good load swing control. The main and knuckle booms are box type fabrications, pivoting on maintenance free self-lubricating bronze bearings and stainless steel pins. Rotation is effected hydraulically by means of a roller type motor via an epicyclic gearbox with integral failsafe hydraulic brake.
The slewing function is load protected by a double relief valve Elevation of the boom is effected by two hydraulic cylinders which are load protected by integral double acting counter balance valve. Lifting and lowering of the load is effected by a hoist unit with integral pressure released brake, load holding valve and under-wind protection.