Ninja Foot Ascender

The Ninja Foot Ascender by Harken Safety & Rescue is lightweight and durable, and makes long ascents on rope easier. The housing is aluminum and the rope-holding dual cams are stainless steel. Foot ascenders use your body's largest muscle group to ascend a rope easily and quickly.

The Ninja has a maximum working load of 1.5 kN (330 lb) and can handle rope up to 13 mm (1/2 in). The Ninja's spring design reduces rope drag to the lowest of any available foot ascender. This makes starting a climb easier and faster - no need to counterweight the rope or reach down to pull the rope through the unit.

Increased productivity. The Ninja is designed with springs that reduce rope drag to the lowest of any available foot ascender. This means that there is a smoother and easier take off without having to counterweight the rope or reach down to pull the rope through the unit. The result? Increased worker productivity.

Won't damage your rope. The Ninja uses a transverse ribbed cam instead of teeth. Competitive designs rely on aggressive barbs on their single cams, which can damage rope cover.

Innovative design. The dual cam system (based on Harken's marine Cam-Matic (R) ball bearing cleats) applies pressure to both sides of the rope simultaneously. This provides more thorough and even force than competitive designs whose cams act on just one side of the rope against a fixed wall on the other side. It also prevents accidental kick-outs.

Specifications

• Maximum line diameter: 13 mm (1/2 in)
• Minimum line diameter: 8 mm (5/16 in)
• Maximum rated load: 1.5 kN (330 lb)
• Material: Aluminum
• Cam material: Stainless steel
• Width: 83 mm (3.3 in)
• Height: 74 mm (2.9 in)
• Weight: 178 g (6.3 lb)

Manual for the Harken Ninja Foot Ascender - Download PDF