Runners according to your design
Forged monoblock Pelton runners from CNC TVAR
These turbines are generally used for sites with heads greater than 300 meters. Due to the high net heads, the runner is subjected to extremely high stresses. This is why CNC TVAR manufactures all runners from a single forged block consisting of premium alloys no matter the number of buckets, size or design of the rotor. We understand the need for the highest possible efficiency and make sure, it is not just on the paper. Thus, CNC TVAR provides a long-lasting, high-quality product.
EXPERIENCE
>1.500
runners delivered
HEAVY WEIGHT
50t
maximum disc weight
FLEXIBILITY
3.500mm
maximum runner diameter
Material procurement
Purchasing of stainless steel, titanium and aluminium from top European suppliers. Delivery time depending on specifications and size.
- Forged disc - any size
- Forged disc - 8-14 weeks from order
- Forged disc cut from a bar - up to 1350 mm
- Forged disc cut from a bar - 1 week from order
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Manual polishing
Grinding and polishing – thatʼs where the parts get their final touch. When it comes to the surface quality of complex shapes, we do not make any compromises.
- Polishing based on CMM measurement report
- Experienced employees polishing according to customer specific procedures
- Several dimensional and quality controls through process
- Compliance with all environmental standards thanks to the newest filtering technologies
Non-destructive testing
Completed products are checked using four non-destructive testing methods (NDT). Our inspectors are ISO 9712level II certified.
- Visual Testing (VT)
- Liquid Penetrant Testing (PT)
- Magnetic Particle Testing (MT)
- Ultrasonic Testing (UT)
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Balancing
The actual unbalance is displayed in one or two planes by graphical and numerical output. There is also a deviation from the allowed unbalance displayed and a suggestion for the most convenient weight correction.
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3D measurement
The measurement is performed on CMM or with a 7-axis high speed 3D arm with a laser scanner with extreme precision according to the highest international standards.
- Measurement of drawing dimensions
- Measurement of hydraulic profile
- Part alignmenet based on RPS points
- High data quality
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- Perucica
CNC TVAR delivered the Pelton runner for HPP “Perućica” which is the oldest large hydropower plant in Montenegro, and was put into operation in 1960. It is named after the well Perućica, which originates in the vicinity of hydroelectric power plant.
Customer Voith & EPCG Location Montenegro Scope monoblock Pelton runner Runner diameter 3100 mm Installed capacity 307 MW - Evanger
The Evanger Hydroelectric Power Station (Evanger kraftverk) is situated 1,500 metres inside the mountain just on the edge of the village. The power station started production in 1969, was modified in 1977, and has been undergoing new upgrades since 2016.
Customer Rainpower & BKK Location Norway Scope monoblock Pelton runner Runner diameter 2900 mm Installed capacity 330 MW - Amsteg
The Amsteg hydropower plant is located in the municipality of Silenen in the canton of Uri and was commissioned in 1922. The power plant is 90 percent owned by SBB, ten percent belong to the Canton of Uri. The Amsteg hydropower plant is the largest in the entire canton of Uri and plays an important role in the electrification of the Gotthard line.
Customer GE & SBB Location Switzerland Scope monoblock Pelton runner Runner diameter 2650 mm Installed capacity 120 MW
