All kinds of works should be done on a disconnected line. If the cutting under voltage is really necessary you should use tools with insulated handles, that are designed for work under voltage. This possibility should be indicated in the tool manual.
There are blades for HCT cutters available for sale. Why there are no changeable blades for HC cutters?
Cutter of HCT-40 and HCT-55 made by KBT are designed for cutting different solid materials so that the user can easily change the blades when necessary. HC cutter is designed so that in 90% when you face a break of blades it means that the ratchet also needs to be changed. This leads to an almost full disassembly of the tool. This specific task should be done by professionals from KBT Service Center.
What do numbers mean in the names of the KBT cutters?
The figures in names mean the maximum diameter of stranded alum cable, that can be cut with this tool. For example, HC-45 cutter is designed for cutting a cable with a diameter of 45 mm. It is important that for cutting of solid cable of the same diameter you should choose a tool with a bigger cutting potential.
Why some cutters can cut solid materials and some can not?
It depends on the type of material, the hardness of blades and the sharpening angle. In most cases, hard materials such as steel ropes and bars should be cut with blades of extra hardness and with a specific sharpening angle. Cable with steel armoring should be cut with very sharp and not hard blades.
What is the main difference between mechanical and hydraulic cutters except for their mechanism of action?
Hydraulic cutter is easier to work with, so the main difference is, of course, comfort. In most cases, hydraulic cutters are designed for cutting various copper and alum cables, steel ropes, stranded ropes, and ACSR. A typical sample of this kind of cutter is models made by KBT: НГР-40, НГР-53, НГР-65, НГР-85. Most hydraulic cutters have a guillotine-type working head that has a big operational resource. Mechanical models of cutters can be of smaller size, thus more compact. One more advantage of mechanical models is that you can work with them in almost all weather conditions. At the same time that demands much care, as small particles in the ratchet can cause a break.
What are the advantages of hydraulic cutter НГР made by KBT?
The advantages are as follows:
1. Quick and comfortable work
2. Universal model: most models are designed for cutting solid and started cables, ACSR, steel wire ropes, and ropes with armoring, as well as for steel bars.
3. Most cutters have a guillotine-type head which is considered to be the most reliable.
4. Minimum maintenance
5. The risk of breakage is minimal
I need to cut a 240 mm cable. Which model should I choose?
The 240 mm can be of various types: it can be made of copper or aluminum, it can be single-core or stranded, with or without armoring. This all is necessary to know which tool to choose for cutting. It is also very important because if you choose the correct model, your cutting toll will live a longer life. The least that you need to know about your cable to choose a correct model for cutting is a dimeter and presence of steel elements: steel core or steel armoring.
What is the operational temperature for hydraulic cutters?
All-season KBT hydraulic oil is used in all cutters made by KBT. Its operational temperature is from -15°C up to +50°C. It is not recommended to work with a hydraulic tool at lower temperatures as there is a risk to damage grease retainers made of rubber.