Cement and Mining
Cement is defined as hydraulic binders obtained by adding gypsum or additives to clinker. Clinker is obtained by mixing raw materials such as limestone, clay, marl and iron ore containing silicone, calcium, aluminum and iron oxides at certain rates and cooking them up to a certain sintering temperature.
Preparing Raw Materials
Different raw materials obtained from furnaces are sent to stock silos following homogenization process after breaking, premixing and milling processes.
Clinker Manufacturing
Raw meal in stock silos is sent to rotary furnaces through elevators for sinterization process and Clinker is obtained at the end. Clinkers (semi-finished) manufactured are sent to stock silos.
Cement Grinding
Depending on cement types, Clinker, limestone and various additives are grinded together and sent to the cement stock silos.
Packaging / Loading / Unloading
Cements in stock silos are sent to the packaging units and prepared and loaded as bagged cement, bulk cement or bigbag.
Mining Companies
Mining and ore mining companies must work continuously with quarries and heavy and variable loads especially including marble, which all have economic value. Therefore, these companies need drive systems that may serve for 7/24 from machines used in processing output products to transfer systems used in transfers. PGR Drive Technologies addresses all needs of Cement and Mining Companies with its rigid-body gear unit groups with wide reduction ratios and moment values up to 800000 Nm.
Cement and Mining Solutions
PZ Series
The suitable scope of speed reducer is as follows:
- The rotation of high speed shaft should not be more than 1500 rpm;
- The circumferential velocity of gear tranmission should not be more than 20 m/sec;
- The temperature of work environment should be -40-45°C. If it below 0°C, before start, the lubricating oil should be pre-heated to above 0°C. This speed reducer can be run at clockwise and counterclockwise direction.
Characteristics
- The gear is made of high strength low carbon alloy steel through carburization and quenching. The hardness of tooth surface may reach to HRC58-62. All gear adapts NC tooth grinding process, high in accuracy and good in contact performance:
- Highly tranmission efficiency: single stage, more than 96.5%; double-stage, more than 93%; Three-stage, more 90%;
- Smooth and stable in run, low noise;
- Compact, light, long life, high bearing capacity; Easy to disassemble, inspect and assemble.
PKD Series
It may be the drive solution in various conveyors used for heavy load transfer where movement is to be directed at 90°.
- Helical bevel gear units with 90° input and output axis range.
- Casing with feet, flange F options.
- A rigid structure in case.
- System resistance calculations are made in accordance with ISO, DIN and NIEMANN standards.
- Different input options may be provided (Coupled motor, IEC, PAM, W, Servo motor connected, ...).
- Different output options available (Solid shaft, Hollow shaft, With shrink disc, ...).
- Different mounting accessories available (B5 flange, B14 flange, Torque arm and Platforms,...).
- Bodies are manufactured from sfero (GGG 40-50) and peak (GG 20-25).
- Gears are made of cast and 21NiCrMo2 case-hardening steel.
- High-quality bearing and sealing components are used.
- Special requests of the customers may be considered.
PA/PF Series
These series which are provided in foot- (PA) and flange (PF) mounted options serve up in drive systems that need wide reduction ratio and maximum 26900 Nm of output moment.
- Helical gear units with parallel axis input and output.
- Casing with feet, flange F options.
- A rigid structure in cases.
- System resistance calculations are made in accordance with ISO, DIN and NIEMANN standards.
- Different input options may be provided (Coupled motor, IEC, PAM, W, Servo motor connected, ...).
- Different flange measurements may be provided in B5 mountings.
- Cases are manufactured from sfero (GGG 40-50) and peak (GG 20-25).
- Gears are made of cast and 21NiCrMo2 case-hardening steel.
- High-quality bearing and sealing components are used.
- Special requests of the customers may be considered.
PH/PB Series
Industrial type gear units operate especially under heavy working conditions, have rigid case, bear high moments up to 480000 Nm and stand out with silent operation and easy maintenance features.
- Helical - bevel gear units with parallel axis input and output or 90° axis angle.
- Casing with feet, flange F options.
- A rigid structure in case.
- Gear units used to meet needs for high power under heavy working conditions.
- System resistance calculations are made in accordance with ISO, DIN and NIEMANN standards.
- Different input options available (IEC, W, ...).
- Different output options available (Solid shaft, Hollow shaft, With shrink disc, ...).
- Different mounting options available ( B5 flange, Torque arm platform,...).
- Cases are manufactured from sfero (GGG 40-50) and peak (GG 20-25).
- Gears are made of cast and 21NiCrMo2 case-hardening steel.
- High-quality bearing and sealing components are used.
- Special requests of the customers may be considered.
PL/PLB Series
PGR Drive Technologies provide solutions in planet gear units with PTO, IEC, parallel shaft input options which offer high reduction ratio in small volumes in drive systems with heavy and variable loads thanks to their compact and modular structure up to 850000 Nm of moment values.
- Gear units with coaxial input and output or 90° axis angle.
- Casing with feet, flange F options.
- A rigid and modular structure in case.
- Compared to other gear units, higher moment values can be met with smaller body sizes.
- System resistance calculations are made in accordance with ISO, DIN and NIEMANN standards.
- Different input options may be provided (IEC, Hydraulic Motor mounted, Servo motor mounted, ...).
- Different output options available (Hollow shaft, Shrink disc, DIN form splined,...)
- Cases are manufactured from cast iron (GGG 50-60).
- Gears are made of cast and 21NiCrMo2 case-hardening steel.
- High-quality bearing and sealing components are used.
- Special requests of the customers may be considered.
Please Contact Us For PL/PLB Series General Parts List.