GRABO HighFlow
GRABO HighFlow is GRABO®’s most powerful cordless vacuum lifter, engineered to grip extremely porous, rough, and open-grain materials that can defeat standard suction tools. Its high-volume pump delivers an impressive 1,500 L/min (1.5 m³/min) airflow, allowing it to build and maintain a strong, stable vacuum on demanding surfaces such as dry cast pavers, rough concrete, raw timber, untreated stone, rough brick, plywood, and OSB. The innovative pistol-grip design, SMART CUT foam seal, and user-friendly T-Bar handle provide improved ergonomics for lifting, moving, and installing heavy porous materials with greater precision and confidence. A large digital display shows real-time vacuum pressure in PSI or BAR, while the pump cycles automatically to maintain the seal as you move and position materials. The dual-battery system keeps the high-volume pump running during demanding applications, and the tool supports suction plates in 300 × 300 mm and 400 × 400 mm sizes, with the 400 mm plate increasing lifting capability to up to 242 lbs (110 kg).
The GRABO® HighFlow features four power levels from 50 W to 160 W, a maximum vacuum rate of 0.19 bar (2.7 psi), and a working temperature range of 23°F–122°F (-5°C–50°C). The supplied GRABO® 20V (18V EU) battery system uses the TB21000 battery with 5.0 Ah capacity, 18 V nominal voltage, and 21 V charge voltage, providing up to 30 minutes of working time on a full charge. The included 84 W charger accepts 100–240 V AC, 50/60 Hz, with up to 2 A input and delivers 21 V output at 3.6–4.4 A under load (4.5 A max). The tool measures 11.9 × 7.2 × 5.8 in (303 × 184 × 147 mm) and weighs 6.4 lbs (2.9 kg) with the 300 × 300 add-on and battery. The 300mm suction plate is included, while the 400mm suction plate is available separately. The system also includes a T-Bar handle with wired remote ON/OFF control for ergonomic paver laying.
Main Features
- 1,500 L/min (1.5 m³/min) high-volume vacuum airflow
- Designed for extremely porous, rough, and open-grain materials
- Suitable for dry cast pavers, rough concrete, raw timber, untreated stone, rough brick, plywood, and OSB
- Ergonomic pistol-grip design
- SMART CUT foam seal and T-Bar handle for outdoor paver installation
- Large digital display for real-time PSI or BAR pressure monitoring
- Automatic pump cycling to maintain vacuum during handling
- Dual-battery system for demanding rough-material applications
- Four power levels: 50 W, 90 W, 130 W, and 160 W
- Maximum vacuum rate: 0.19 bar (2.7 psi)
- Supports 300 × 300 mm and 400 × 400 mm suction plates
- Up to 242 lbs (110 kg) lifting capacity with the 400mm suction plate
- T-Bar handle with wired remote ON/OFF control
- GRABO® 20V (18V EU) battery platform
- Up to 30 minutes of working time per full charge
- 84 W charger with 100–240 V AC input
- Working temperature: 23°F–122°F (-5°C–50°C)
Specifications
| Property | Value |
|---|---|
| Model / SKU | GRABO® HighFlow / GHF-V1 |
| Dimensions | 303 × 184 × 147 mm / 11.9 × 7.2 × 5.8 in |
| Net Weight with 300 × 300 Add-On & Battery | 2.9 kg / 6.4 lbs |
| Rated Power | Gear 1: 50 W; Gear 2: 90 W; Gear 3: 130 W; Gear 4: 160 W |
| Maximum Vacuum Rate | 0.19 bar / 2.7 psi |
| Rated Air Flow | 1,500 L/min (1.5 m³/min) |
| Working Temperature | -5°C to +50°C / 23°F to +122°F |
| A-Weighted Sound Pressure Level* | LpA = 79.4 dB(A), uncertainty K = 3 dB(A) |
| A-Weighted Sound Power Level* | LwA = 71.4 dB(A), uncertainty K = 3 dB(A) |
| Vibration Total Value** | 1.240 m/s², uncertainty K = 0.11 m/s² |
| Suction Plate 300 Dimensions | 316 × 316 × 17.3 mm |
| Suction Plate 400 Dimensions | 416 × 416 × 17.3 mm (not included) |
| Battery Model | TB21000 |
| Battery Rated Capacity | 5.0 Ah |
| Nominal Voltage / Charge Voltage | 18 V / 21 V |
| Charge Current | 4 A |
| Overcharge Protection | 4.25 V |
| Working Time, Full Charge | Up to 30 minutes |
| Battery Charging Temperature | 32°F–115°F (0°C–45°C) |
| Battery Discharge Temperature | -4°F–140°F (-20°C–60°C) |
| Long-Term Battery Storage (>3 months) | 0°C–30°C / 32°F–86°F; charged to 18.5–19.5 V (80–90% of full charge) |
| Charger Rated Power | 84 W |
| Charger Input | 100–240 V AC; 50/60 Hz; 2 A max |
| Charger Output Voltage | 21 V |
| Charger Output Current | 3.6–4.4 A under load (4.5 A max) |
| Charger Operating Temperature | 0°C–40°C / 32°F–104°F |
| Charger Storage Temperature | -10°C–75°C / 14°F–167°F |
| Charger Working Conditions | Indoor use only; not waterproof (IP0) |
Lifting Capacity
| Material | Perpendicular Hold |
|---|---|
| Rough Concrete | 100 kg / 220 lbs |
| Raw Timber | 100 kg / 220 lbs |
| Rough Slate | 90 kg / 198 lbs |
| Untreated Stone | 90 kg / 198 lbs |
| Drywall | 80 kg / 176 lbs |
| Plywood | 90 kg / 198 lbs |
| OSB | 80 kg / 176 lbs |
| Rough Brick | 85 kg / 187 lbs |
GRABO HighFlow Video
THE GRABO High Flow Introduction
Product Related Documents
GRABO HighFlow Spec Sheet
HighFlow Charger Safety Instructions
Notice
Sound and vibration measurements were taken according to applicable test standards under defined conditions; actual values may vary in real working environments. Accessories manufactured or sold by GRABO®, including third-party accessories, are engineered specifically for GRABO® tools and mounting systems and are not compatible with the DeWalt GRABO®.
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