FELLING, DEBARKING AND EXTRACTION
Trees are felled and extracted.
Efficient transport of raw materials.
SORTING AND GRADING
Poles are sorted and graded after offloading at the raw material yard.
Drying of poles in the kiln.
Before being treated, poles are strength tested to 50 or 75MPa.
Poles are treated with creosote according to SANS:616 specifications.
All poles are strictly analysed and inspected to insure top quality. Poles may also undergo a secondary inspection together with clients.
Only quality approved poles are loaded for dispatch. Our fleet can deliver all over Southern Africa. Our plant also has a railway siding in case we need to deliver poles via rail. We use Maputo Port (Mozambique) for long distance exports.
PLANT AND MACHINERY
Poles are graded and tested according to relevant specifications. Normal requirements are 50 or 75MPa as stipulated by the South African Bureau of Standards and ESKOM. Poles can also be graded and tested according to customer requirements. Our equipment is calibrated on a regular base to insure consistent quality.
CONVEYING AND TRANSPORT
To insure quality of service, Tzaneng owns and operates its own fleet of trucks and Bell loaders. We engage closely with shipping and rail companies whenever transport is required over long distances. We also make use of reliable transport contractors.
Timber must be dried from wet moisture content to only 25% in order to comply with relevant standards specifications. Tzaneng is one of only a few treatment plants in Africa that has this drying facility. The duration of the kiln drying process is 5 – 7 days, apposed to the wind drying process that takes up to 9 months. To insure consistency of quality, the kilns is computer controlled.
Poles are stacked into our approved pressure vessels. The impregnation process takes up to 2 hours.