On Belay

The OnBelay device

Utilizing a system used in military aircrafts, The OnBelay automatically retracts the cable rope when the climber ascends, and controls the speed when they descend off the wall. It features a one of a kind system of Self-Adjusting Speed Limiting Valves that descends users safely at a consistent speed of 1m/s, regardless of external factors like temperature or body weight.

Features:

• CE certified
• Low maintenance cost
• Redundancy in the event of:
• Loss of pressure in the tank – sound and light alarm system option
• Loss of up to 50% of the hydraulic fluid
• Malfunction of one of the hydraulic cylinders

How it works?

• The OnBelay autobelay is an air-over-hydraulics unit that consists of body, hydraulic rams, pulleys, pressurized tank and a steel cable. The Onbelay autobelay is mounted behind the climbing wall and the steel cable is guided above and in front of the climbing wall through pulleys on a davit.
• The climber is attached to the steel cable by means of a certified connector.
• When the climber ascends – the pressure in the tank forces the fluid into the pistons thus retracting them through
  series of pulleys.
• When the climber falls or descends, the created pull forces the hydraulic fluid out through an orifice thus limiting the descent speed to approximately 1 m/s regardless of the climber’s weight. The forced hydraulic fluid then goes into the pressurized tank.

Tech Specifications:

• Cable: Steel cable DIN3069
• Safe Load: 1 person
• Min. user weight: 25 kg (55 lb)
• Max. user weight: 125 kg (275 lb)
• Max retract speed: 1.5 m/s (5’/s)
• Descend speed: 1 m/s (3’3’’/s)
• Brake: Air-over-hydraulic system with 2 pistons and orifice check valve