Harken Ninja Foot Ascender

Learn More

The updated Ninja™ Foot Ascender is both lightweight, durable with design upgrades to make moving on rope even A easier. Key updates include a spring-loaded retainer secures rope within the fairlead for better rope management and an adjustable strap that is removable for cleaning or replacement. The Raise end plates align rope better between the symmetrical cams for even smoother operation.

The housing is hard-coat anodized aluminum while the rope-holding dual cams are stainless steel. The Ninja has a maximum working load of 150 kg (330 lb) and can handle rope of up to 13 mm (1/2″). The Ninja is designed with lower spring force for the least rope drag 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.

Accidental Kick-Outs are a Thing of the Past
The dual cam system plus the spring loaded retainer on the fairlead prevent accidental kick-outs and maintain ideal rope path. The rope stays in place until the user is ready to release it intentionally. The Ninja is the only foot ascender that can be used on either foot.

Won’t Damage Rope
The Ninja uses a transverse ribbed cam as opposed to other designs that rely on aggressive teeth that are known to damage rope.

Innovative Design
Dual cam system (based on Harken’s marine Cam-Matic® ball bearing cleats) applies pressure to both sides of the rope simultaneously. This provides more thorough holding power than other designs that press just one side of the rope against just one side of the ascender’s wall.

Minimum line Ø (mm)	8 mm
Minimum line Ø (in)	5/16 in
Maximum line Ø (mm)	13 mm
Maximum line Ø (in)	1/2 in
Maximum rated load (kN)	1.5 kN
Maximum rated load (lb)	330 lb
Width (mm)	83 mm
Width (in)	3.3 in
Height (mm)	74 mm
Height (in)	2.9 in
Weight (g)	175 g
Weight (lb)	0.4 lb
Material	Aluminum
Cam material	Stainless steel

PRODUCT NAME	WEIGHT	DIMENSIONS (W X H)	ROPE DIAMETER	MATERIAL	CAM MATERIAL	MAXIMUM RATED LOAD (MRL)	Price
HARKEN NINJA FOOT ASCENDER	175 G (0.4 LB)	83 X 74 MM (3.3 X 2.9 IN)	8 - 13 MM (5/16 - 1/2 IN)	ALUMINUM	STAINLESS STEEL	1.5 KN (330 LB)	$109.99

PRODUCT NAME

WEIGHT

DIMENSIONS (W X H)

ROPE DIAMETER

MATERIAL

CAM MATERIAL

MAXIMUM RATED LOAD (MRL)

Price

HARKEN NINJA FOOT ASCENDER

175 G (0.4 LB)

83 X 74 MM (3.3 X 2.9 IN)

8 - 13 MM (5/16 - 1/2 IN)

ALUMINUM

STAINLESS STEEL

1.5 KN (330 LB)

$109.99

HARKEN NINJA™ FOOT ASCENDER

Accessories