Grabo Heavy Duty Suction Cup

Grabo Heavy Duty Suction Cup

INStock Tools Supply

  • 24900
  • Save $ 10100

Grabo’s technology and Technical spec

Grabo incorporates multiple patents and technological innovations developed by engineers over the course of several years. This page summarizes sum of the product’s unique technical capabilities. 


1. Adhesion to rough surfaces

Traditional suction cups are only capable of creating a good seal with flat, clean and airtight surfaces such as glass. However, Grabo’s unique seal allows the tool to adhere to rough, etched surfaces. The maximum surface roughness which Grabo can attach to depends on the exact “Profile roughness parameters” (The geometry of peaks and valleys in the material), and is generally limited to an amplitude of about 2.5mm (0.1 inch). This capability allows Grabo to create a seal with the majority of patterned tiles, pavers and construction materials.


Grabo components

Your Grabo includes the following main components:

Connecting Straps to the Grabo

  1. Locate the four holes around the handle of the Grabo. You can connect the strap to any 2 or 4 of these holes using the provided hooks or any carabiner hook rated to a minimum of 400 lbs.
  2. Secure each of the clips at the ends of the strap into a hole.

Changing the Battery

  1. Connect the mains plug of the battery charger to an electrical outlet.
  2. Connect the charger to the battery.
    The battery begins charging as soon as it is connected to the charger, and stops charging as soon as it is full. A red light on the charger indicates that the battery is being charged. Once the battery is fully charged, the charger LED will change to green.

Replacing the Rubber Foam Seal

  1. Grabo’s double foam seal is a patented soft sealing system, designed for sealing rough un-even surfaces as well as provide high friction and strong adhesion to many different materials. The seals are consumable rated to last 3,000 cycles under normal use, and can easily be replaced if they wear-out. Check your seals regularly and replace them if any damage is visible.
  2. Remove the rubber foam seal that has become worn or damaged by pulling it out of it’s niche. Use a flat screwdriver or knife to carefully pull the seal out from it’s plastic base. Pulling on the black foam directly will likely cause it to tear.
  3. Gently press the new rubber foam seal in to position, ensuring that it fits snuggly and securely.

Technical Spesifications

Battery Voltage 16V Li-ion
Battery Cell Specification 2.2 Ah
Rated Power 16W
Dimensions 297 x 181 x 115mm
(11.7 x 7.1 x 4.5 inches)
Net weight (with battery) 1.5kg (3.3lbs)
Working temperature -5°C – 60°C (23°F – 140°F)
Working time (full charge) 1.5 hours

Lifting force under different conditions

Max Lifting Force
This table provides a rough estimation of the max perpendicular adhesion force and max parallel adhesion force on different materials. These values may vary depending on material and surface conditions.

Perpendicular Hold Parallel Hold P/P Ratio
Glass 170kg (375lbs) 120kg (265lbs) 0.7
Metal 110kg (242lbs 110kg (242lbs) 1
Plastic 100kg (220lbs) 100kg (220lbs) 1
Wood 100kg (220lbs) 65kg (143lbs) 0.65
Ceramic Tile 170kg (375lbs) 120kg (265lbs) 0.7
Rough Concreate 80kg (176lbs) 80kg (176lbs) 1
Dry Wall 75kg (165lbs) 65kg (143lbs) 0.87
Rough Slate 80kg (176lbs) 80kg (176lbs) 1
Pressure to perpendicular lifting force conversion

For a more accurate estimation, check the pressure gauge on your Grabo and use the table below to convert pressure values to max lifting force values. (Parallel holding force values can be calculated using the P/P ratio provided above for different materials.)
Pressure (bar) Max perpendicular holding force
-0.8 170 kgf/ 374 lbsf
-0.6 128 kgf / 281 lbsf
-0.4 85 kgf / 187 lbsf
-0.2 43 kgf / 94 lbsf
-0.1 21 kgf / 47 lbsf

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