PAWO F7S wire ropes for small traction sheaves

PAWO F7S is developed based on PAWO F7. The hemp core part of the F7 steel wire rope core is replaced by an all-steel core. This increases the metal cross-section of the rope, resulting in a higher breaking force for the wire rope.

This wire rope is mainly used where the service life of the wire rope is more affected by bending fatigue and smaller traction sheave, rather than when the service life is more affected by the wear of the outer wire and the traction sheave. The full wire core of this wire rope significantly reduces the elongation of the rope compared to the F3 and F7 designs. This makes the wire rope especially suitable for high-rise elevators and high-frequency bending.

Features
Elevator for middle and upper floors
Moderate to high number of bends
Moderate to high frequency of use
low wear rate
low elongation
high service life

Construction: 8 x 19, Wallington, full steel core, alternate twist
Technical conditions according to DIN EN 12385, ISO 4344
Number of load-bearing wires in outer strands: 152
Nominal strength 1570 MPa, smooth or galvanized steel wire

Steel wire ropes are one of the best choices for elevator applications owing to its two main features: redundancy and detectability.
Redundancy is very important for safety-relevant applications. If one of individual elements is broken, other elements will take on its function and remain in operation taking advantages of interaction between wires.
Detectability means the capacity to determine the end of service life and the degree of bending fatigue of running wires. As fatigue increase, more external wire breaks so that it is possible to estimate by visible inspection before the condition becoming dangerous.
Normally, elevator wire ropes feature parallel strand construction for reducing incidence of abrasion compared with ropes with cross laid construction. Meanwhile, they have a high fatigue bending life and less wear to running sheaves.

Electric Components
·Elevator Cabin includes
Complete Elevator Cabin, Car Frame, Counterweight Frame and Counterweight Block,Guide Shoes, Rope Attachment etc.
·Door System includes
Mitsubishi, Fermator and Selcom Door Operator and Landing Door, BST Door System, Wittur Door System, Door Panel, Door Spare Parts,Safety Light Curtain/Photocell etc.
·Safety Components includes
Safety Gear, Speed Governor, Rope Brake, Oil Buffer and Rubber Buffer etc.
·Traction System includes
Geared Traction Machine/Gearless Traction Machine, Pulley Sheave,Anti-Vibration Pad,Steel Wire Rope etc.
·Shaft Components includes
Machined /Cold Drawn/ Hollow Guide Rail, Fishplate, Fasteners, Anchor Bolt, Rail Rracket etc.
·Electrical Components inclueds
Integrated and Separated Controlling Cabinet,Yaskawa L1000A Inverter, Elevator Display,Elevator COP&LOP&HOP, Elevator Button, Flat Traveling Cable etc.