Front	Rear

Front: Open for Rigging 1	Front: Open for Rigging 2

Rear: Open for Rigging	Top	Bottom

Technical Details

I acquired my heightec Quantum D26 from heightec in 2022.

My heightec Quantum D26 is 74 mm. long, 148 mm. wide, 30 mm. high, and weighs 302 g.

The Vector consists of two aluminum plates enclosing a cast stainless steel actuating lever and a cast stainless steel rope anvil. The rear plate has a 14.9 mm. high, 27.8 mm. wide attachment hole at the right side of the device. The front plate has a corresponding hook with a plastic gate. A 6 mm. stainless steel axle on the left side supports the actuating lever. The axle passes from front to back, passing in sequence through the front side plate, the actuating lever, and the rear plate, with the front plate and lever free to rotate. The right side of the lever has a V-shaped vertical groove above the axle and a cam face with two shallow horizontal grooves below. The anvil is cast stainless steel. It is riveted to the rear plate near the bottom, and a protrusion fits into a hole in the rear plate near the top, preventing relative motion. There is a cutout along the middle of the anvil, next to the rear plate, to reduce weight.

The outside of the front plate is printed with "D23," "Quantum," "Back-up," the heightec logo, "heightec," and "Patented. The inside of the front plate is stamped :00510" near the hook. The inside of the rear plate has a rope with an eye printed between the lever and axle, "011221," "UKCA," "0120," "CE0598," "EN12841 A:2008," "EN353-2:2002," a book-with-an-"i" icon, "•Ø," "10.5 -11.5 mm," a human icon and "↑" above "100 kg," a horizontal line separator, and two human icons over the word "RESCUE."

Comments

The D26 is designed for a narrow range of rope diameters, 10.5-11.5 mm. This is smaller than the range that the "bigger-is-better" and industrial crowd seem to prefer.

The mechanism resembles that of the Ural Alp Basic ascender. It could be used as an ascender, but the like with the Basic, the lost motion in each step would make it an inefficient one.

The plastic gate is on the side of the hook that would be loaded first when the Quantum is called on to stop a fall; however, it appears that the shape of the rear hole would prevent a substantial load from falling on the relatively weak gate.