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Xinda King Kong


Front Rear Left Side Right Side
Front Rear Left Side Right Side
Front: Open for Rigging Rear: Open for Rigging
Front: Open for Rigging Rear: Open for Rigging

Technical Details

I acquired my Xinda King Kong from Kangjin Liao (e4store) in 2021.

My Xinda King Kong is 236 mm. tall, 63 mm. wide, 32 mm. thick, and weighs 316 g.

The two side plates are made of 2.9 mm. aluminum and gold anodized. One side plate pivots to allow threading the rope. The lower ends of the side plates are bent to converge at the attachment point, which consists of a 15 mm. wide, 30 mm. high hole on the fixed plate and a hook on the other. The hook opening is covered by a spring-wire gate.

The lower bollard is part of an autostop assembly. It is a stainless steel casting with an integral cam. The lower surface of this bollard has a 10.7 mm. wide, 2.2 mm. deep U-shaped rope groove. The upper surface is flat. A stamped aluminum handle is attached to the fixed side plate side of the lower bollard with two pins pressed into the bollard. The handle has a black hard-plastic cover. The lower bollard and handle assembly rotate on a 7 mm. bolt. A concealed spring is strong enough to keep the handle in the disengaged position, but is weak enough to function only during storage. Friction from the main rope’s passage tends to turn the lower bollard and force the cam towards the upper bollard, thus locking the rope and ideally arresting the descent. The rappeller uses the handle to keep the autostop feature disengaged. The handle limits the motion by hitting the fixed plate before the lower bollard cam nose contacts the upper bollard.

The upper bollard is cast aluminum with a slot to keep it from rotating on the fixed side plate. The bollard is attached to the fixed side plate with a 7 mm. bolt and shouldered hex nut. The pivoting side plate pivots on the lower bolt and has a slot to allow clearing the upper nut’s shoulder. The upper bollard has a narrow 9.0 mm. wide, 4.4 mm. deep U-shaped rope groove. The upper bollard is cut away on its lower side to provide a flat surface to act as an anvil for the cam action of the autostop feature. A 10 mm. stainless steel wear pin is pressed into the lower surface.

The auxiliary top pin has a 15.5 mm. wide, 7.5 mm. diameter bearing surface.

The pivoting plate is stamped with a reading-is-dangerous icon, "KING KONG," a rigging illustration, the Xinda logo, and "XiחDΛ." The fixed plate is stamped with "KING KONG," and "XiחDΛ," and is printed with "209148X194, a round-cornered rectangle containing "CE 1019," "EN15151-1," "Max: 100m," and "Max: 150kg," and "MADE IN CHINA." The handle is stamped with a rigging illustration.


This is arguably the nicest stop bobbin available in early 2021, but it is also one of the most expensive.

I would like to see the nuts on the axle bolts staked to prevent them from coming loose; however, this does not seem to be a problem and many more popular bobbins are constructed similarly without staking their nuts in place. A concerned user can easily stake the nuts herself/himself.

I'm somewhat puzzled why the notch opposite the gate is not 2 mm. lower where it would better align with the the bend in the gate when the gate is open. The small notch near the tip of the hook aligns perfectly with the wire gate.

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