Lifelect D91

Dual Roller Brush Wide-Body Robot

Lifelect D91 window cleaning robot

Technical Specifications

ModelD91
Dimensions240 × 223 × 88mm
Package Size340 × 255 × 90mm
Suction Power3,000Pa
Battery14.8V / 600mAh
UPS Backup25min
Motor TypeImported Brushless
Water Tank30ml
Spray Nozzles3auto
Edge DetectionBarometric (0.3mm gap)
Safety Rope4.5m
Min Window400 × 400mm
Cleaning Speed3min/m²
Cleaning Routes5 (Z / N / ZN / Spot / Edge)
Remote + APP2.4G + Mobile APP
AdapterAC 100–240V, DC 24V/3.0A

Overview

The D91 builds on the D90's dual roller brush platform with a larger 88mm chassis for extended coverage on wide commercial glass panels and curtain wall systems. Same barometric edge detection, same APP + remote dual control, but optimized for the largest glass surfaces in modern commercial architecture. At 3 min/m², it covers more area per pass than any other Lifelect model.

Key Features

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Wide Commercial Coverage

Larger 88mm chassis covers more area per pass — optimized for curtain walls, wide glass panels, and modern commercial facades.

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Dual Roller Brush System

Patented forward/reverse rotating brushes with triple water spray for superior edge-to-edge cleaning on large glass surfaces.

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Barometric Edge Detection

Senses gaps as small as 0.3mm. Safe for completely frameless glass installations — the gold standard for modern architecture.