The company is a full member of SAUPA (South African Utility Pole Association). Please feel free to contact us regarding any further information that may be required. Phone us today for quotations: +27 74 137 1541
Last update: 14 February 2018
Khulani Timber Industries was established in 1991 as a family business under the original name of Duiwelskloof Treated Timbers. The SABS mark has been in place since, hence our identification tagging being "DTT". The name changed due to a change in the shareholding of the company.
The company employs 180 people, with top and middle management being filled with both black and white employees, and of the feminine gender. Operations carried out by the company include forestry operations. The company is self-reliant and has built up a fleet of equipment to carry out all their manufacturing requirements.
The company is situated in Duiwelskloof also known as Modjadjiskloof, a small town in the Limpopo province in South Africa. Duiwelskloof is 20km north of Tzaneen, and 80km east of Polokwane. The company manufactures treated poles to SANS specifications. SANS 754, SANS 457 and SANS 1288 applies to the company. Chemical processes carried out are creosote treatment and CCA (Copper, Chrome, Arsenic) or otherwise known as Tannalith C.
The treatment of timber poles are carried out in the two treatment plants. These plants are in operation around the clock, giving a treatment capacity of 4000m3 per month. Both processes are the Bethell (Full- Cell) process. The Tanalith C (or CCA as also know) is presently operating on a single shift, but has a capacity to manufacture 2500m3 per month. This Tanalith C plant also produce fencing poles as the creosote plant.
All timber poles longer than 7.0meters are kiln dried. However, shorter poles that forms part of SANS 754 that have a larger top diameter of 140mm is also kiln dried. This will have bearing on cross-arms. Two drying kilns, with a combine capacity of 3000m3 per month, dry timber poles to the require moisture content in 5 - 8 days respectively.
Majority of our timber supply comes from Merensky Holdings. They have 17,000Ha of eucalyptus plantations in rotation which meets our needs. The company complies with F.S.C forestry management system, and accredited by Woodmark.
The treating plant is situated next to the railway siding, giving the company various option for the transporting of our treated poles. Poles can be transported by road (making use of our own transport or contractors) or by rail in the case of exporting by sea freight from either Durban or Maputo harbour.
Khulani Timber Industries is a national contract holder to Eskom for transmission poles, and supply poles to Telkom, electrical contractors and cross border to Botswana, Namibia, and Mozambique. We have supplied treated poles to Mauritius and Seychelles, Kenya, Zambia, Tanzania, Malawi, Angola, Congo, Etiopia and Sri Lanka.
All timber poles bear the SABS marking as mentioned above. ISO 9001 was certified on the 1st July 2002, and our certificate number being LS2994.
A full range of products can be manufactured and to Eskom specification DSP 34-1647. This means that poles longer than 7.0 meters (and cross-arms) need to be kiln dried and pressure treated, compared to the past systems whereby timber poles could be air-dried and dip treated. The company manufacture creosoted poles of various diameters to a maximum length of 25.0 meters.
Creosote is purchased from Arcelor Mittal and FFS Refiners in tanker form. The product adheres to SANS 616 type 2 and 3 specification respectively.
The tanalith C (Also know as CCA) plant manufactures fencing poles, and ranch fencing poles to SANS 457. Transmissions poles are also treated with tanalith C and are mostly used in the Northern African countries. The maximum pole length Khulani can produce in tanalith C is a 19.0 meter. The chemical used is produced by Arch Wood Protection (SA) and adheres to SANS 673 requirements. All tanalith C treated poles are treated with a wax additive, also better known as weatherwood.