Compensation
Why compensating ropes and chains in elevators?
- Reduced energy saving, because the compensation ropes and chains, functioning as counterweight, adjust the weight of large parts of the ropes.
- Gentle starting up and brake of the car
- Optimal traction capability particularly for high shafts
Application of the compensating chains
Meaningful as from 1 m/s till max. 3.5 m/s (according to relevant norm)
- for low rise till 1.75 m/s:
EcoBalance
Cost-optimized plastic-coated chain with “simple” accessories - for low, mid und high rise applications:
ComfortBalance
fully extruded with better running smoothness - Accessories for ideal mounting
Application of the compensating ropes
- Mainly for installations of 2.5 m/s and upwards with tensioning device (according to EN 81-1 a jump-safety function of the tension roller as from 3.5 m/s is required)
- Solution: DRAKO 180B / DRAKO 200B
- Advantage:
- High Flexibility through special construction
- Less elongation through special synthetic cores
- Special lubrication for longer service life and larger maintenance intervals
Special Compensating Ropes
Special compensating ropes (balance ropes), to be used in tensioned application only. The rope construction varies with the nominal diameter to optimize the performance.
Characteristics:
Preformed, bright, right hand ordinary lay
Core:
DRAKO 180B and CRAKO 200B are made with a fibre core (SFC)
Rope grades available:
1370/1770 or 1570
DRAKO 180 B, 6 x 25 F – FC
DRAKO 180 B, 6 x 36 WS – FC
DRAKO 200 B, 8 x 25 F – FC
DRAKO 180 B
DRAKO 200 B
Compensating Chains DRAKO ecoBalance
Description
Tubular-extruded, low carbon, electrically welded proof coil chain;
60°C flame-retardant polyvinyl chlorine that resists oxidation, weathering, solvents and chemicals
Operative Range
Temperature Range: –15°C to +60°C
Rated Speed: ≤ 1,75 m/s
Installation Material: 2 U-bolts
Dampening Device: DRAKO Roller DR-L
Compensating Chains DRAKO comfortBalance
Description
Pressure-extruded, low carbon, electrically welded proof coil chain;
60°C flame-retardant polyvinyl chlorine that resists oxidation, weathering, solvents and chemicals
Operative Ranges
Temperature Range: –15°C to +60°C
Rated Speed: ≤ 3,5 m/s
Installation Material: 3 U-bolts, 1 shackle, 1 stainless steel grip
Dampening Device: DRAKO Roller DR-L and DR-H
