Grabo Suction Plate for Grabo High Flow

Looking for interchangeable suction plates for your GRABO High-Flow? We offer both the 300 mm and 400 mm suction plates, giving you flexibility to match plate size and lifting capacity to the demands of your job — from smaller pavers and bricks to large, heavy slabs and porous materials.

Features

• Two suction plate options: 300 mm plate or 400 mm plate
• Suction Plate 300 measures 300 × 300 mm (12" × 12")
• Suction Plate 400 measures 400 × 400 mm (16" × 16")
• Rated lifting capacity for 300 mm plate: up to 150 lb (68 kg)
• Rated lifting capacity for 400 mm plate: up to 242 lb (110 kg)
• Designed specifically for porous materials such as concrete pavers, natural stone, dry-cast brick, and textured slabs
• Compatible exclusively with the GRABO High-Flow lifting system
• Uses four spring-lock quick-lock pins for secure mounting and fast plate changes
• Plate-only design — foam seals sold separately

Grabo Suction Plate for Grabo High Flow: Complete Guide to the 300mm and 400mm Lifting Plates

The Grabo Suction Plate for Grabo High Flow is a lifting accessory designed to increase the contact area of the GRABO HighFlow vacuum lifter when handling large, heavy, and porous materials. By expanding the suction footprint, the plate helps the HighFlow create a more stable grip on materials such as dry-cast concrete pavers, large bricks, slabs, and other surfaces that may be difficult to handle with a smaller contact area.

GRABO currently offers two major suction plate sizes for the HighFlow system: the Suction Plate 300, measuring approximately 12 x 12 inches, and the larger Suction Plate 400, measuring approximately 16 x 16 inches. The 300mm plate is rated for up to 150 pounds, while the 400mm plate is rated for up to 242 pounds under the manufacturer's stated working-load conditions.

For hardscape contractors, paver installers, landscapers, masonry crews, slab installers, and material-handling professionals, the correct suction plate can make the GRABO HighFlow much more useful when working with large porous products.

What Is the Grabo Suction Plate for Grabo High Flow?

The GRABO suction plate is an attachment that locks onto the GRABO HighFlow vacuum lifter and increases the total suction area.

The standard Suction Plate 300 measures approximately 300 x 300 mm, or 12 x 12 inches. GRABO states that it attaches using four quick-lock or spring-lock pins and is designed specifically for the GRABO HighFlow.

The larger Suction Plate 400 measures approximately 400 x 400 mm, or 16 x 16 inches. It also attaches with four locking pins and is intended for heavier and larger porous materials.

These plates are especially valuable when lifting porous materials because a larger contact area helps the vacuum system compensate for air leakage through the surface.

What Is the GRABO HighFlow?

The GRABO HighFlow is a high-airflow portable vacuum lifting tool designed for materials that may be too porous for conventional suction cups.

Current manufacturer specifications list:

• Rated airflow: approximately 1,500 liters per minute

• Maximum vacuum: approximately -0.20 bar

• Suction power: 80 watts

• Operating temperature: approximately 32°F to 140°F

• Battery-powered operation

• Digital pressure display

• Wired remote

• Quick-lock suction plate attachment system

GRABO includes the 300mm suction plate with the standard HighFlow package according to the current operator manual.

The system is designed around high airflow rather than relying only on extremely high vacuum pressure. That makes it especially useful for porous concrete and hardscape materials.

Grabo Suction Plate 300

The GRABO Suction Plate 300 is the standard attachment for the GRABO HighFlow.

Its main specifications include:

• Size: 12 x 12 inches

• Metric size: 300 x 300 mm

• Shape: Square

• Mounting: Four quick-lock pins

• Maximum rated lifting weight: 150 lbs

• Metric lifting rating: 68 kg

• Compatibility: GRABO HighFlow

• Primary use: Porous dry-cast pavers and large bricks

GRABO identifies the plate specifically for gripping large, heavy, and porous materials.

This plate provides a practical balance between lifting capacity, portability, and maneuverability.

Grabo Suction Plate 400

For larger and heavier products, GRABO offers the Suction Plate 400.

This larger attachment measures approximately:

• 16 x 16 inches

• 400 x 400 mm

GRABO currently rates it for up to 242 pounds, or 110 kg, under the stated working-load conditions.

The plate's additional surface area creates a larger vacuum footprint.

This makes it especially useful for:

• Large-format concrete pavers

• Heavy slabs

• Large porous masonry units

• Thick hardscape products

• Oversized landscaping materials

The 400mm plate is designed for users who need greater stability and lifting capacity than the standard 300mm plate provides.

Grabo Suction Plate 300 vs. 400

The most important difference is size and rated lifting capacity.

Suction Plate 300

• 12 x 12 inches

• 150-lb rating

• More compact

• Easier to position on medium-sized products

• Included with the standard HighFlow kit

Suction Plate 400

• 16 x 16 inches

• 242-lb rating

• Greater surface area

• Higher working capacity

• Better suited to very large porous pavers

GRABO's technical information also shows that larger suction plates significantly increase theoretical lifting force because of the greater surface area.

The correct choice depends on both the material dimensions and the actual load.

Why Does a Larger Suction Plate Increase Lifting Capacity?

Vacuum lifting force depends partly on the pressure difference and the total sealed surface area.

Increasing the contact area allows the vacuum system to act over a larger surface.

This means the larger plate can generate greater total holding force at the same vacuum pressure.

GRABO's published HighFlow performance charts illustrate this difference clearly. At 3.0 psi, the manufacturer lists substantially higher force values when using the 300mm or 400mm plates compared with operating without a plate.

This is especially useful on porous materials because some air continually passes through the surface.

Grabo Suction Plate for Porous Pavers

Porous dry-cast pavers are one of the main applications for the HighFlow suction plate.

Traditional suction cups work best on smooth, nonporous materials such as glass.

Concrete pavers are very different.

Air can move through:

• Surface pores

• Texture

• Voids

• Rough aggregate

• Small gaps

The HighFlow compensates by moving a large volume of air, while the suction plate provides a larger contact surface.

GRABO specifically identifies porous dry-cast pavers as a primary use for the Suction Plate 300 and larger 400mm plate.

Grabo Suction Plate for Large Bricks

Large masonry units can also be awkward to handle manually.

A suction plate can help workers grip them from the top rather than relying entirely on finger strength and edge gripping.

GRABO lists large bricks among the materials suited to the Suction Plate 300.

This can be particularly useful in repetitive installation work.

Examples include:

• Commercial hardscaping

• Large-format paving

• Retaining-wall units

• Landscape masonry

• Specialty brick installations

The actual lifting capability always depends on the material surface and the pressure maintained by the tool.

Grabo Suction Plate for Concrete Slabs

Large concrete slabs can be difficult to lift because of their weight, size, and limited gripping points.

A GRABO HighFlow equipped with the correct suction plate may help provide a more ergonomic lifting point.

Potential applications include:

• Large concrete pavers

• Patio slabs

• Stepping stones

• Hardscape slabs

• Landscape products

The surface must still be compatible with the suction system.

Extremely rough, cracked, irregular, or highly permeable surfaces may reduce holding force.

Always confirm the displayed vacuum pressure before moving the load.

Quick-Lock Mounting System

Both GRABO suction plates are designed for quick attachment.

The Suction Plate 300 uses four locking pins to connect to the HighFlow.

The 400mm version uses the same general four-pin attachment concept.

This provides several benefits:

• Fast plate changes

• No complex installation

• Easy replacement

• Ability to change plate sizes

• Secure connection

For contractors working with several material sizes during one job, quick plate changes can improve efficiency.

Foam Seal for Grabo Suction Plate

The suction plate works together with a foam seal.

The foam conforms to the material surface and helps create the vacuum boundary.

The HighFlow operator manual identifies the 300mm plate with a SMART CUT foam seal as part of the standard package.

An important ordering detail is that some replacement suction plates are sold without the foam seal.

GRABO's current factory listings for both the 300mm and 400mm replacement plates specifically state that the plate-only item does not include a foam seal.

Buyers should verify whether they need:

• Plate only

• Foam seal only

• Plate and foam seal bundle

before ordering.

When Should You Replace a Grabo Suction Plate?

Replacement may be appropriate if the plate is:

• Cracked

• Warped

• Damaged

• No longer locking securely

• Heavily worn

• Unable to hold the foam seal correctly

However, suction problems do not always mean the plate itself is damaged.

Inspect the foam seal first.

A worn, torn, compressed, or incorrectly installed seal can reduce vacuum performance.

Also check the HighFlow air filter and locking pins.

When Should the Foam Seal Be Replaced?

The foam seal should be inspected regularly.

Signs of wear can include:

• Tears

• Cuts

• Permanent compression

• Missing sections

• Excessive surface wear

• Poor sealing

Porous and rough construction materials can be abrasive.

Frequent paver handling can gradually wear the foam.

Replacing a worn seal can often restore grip without replacing the entire plate.

Grabo HighFlow Lifting Capacity

GRABO distinguishes between laboratory breaking force and safe working load.

The manufacturer reports that the HighFlow was tested to much higher failure forces under ideal conditions, including approximately 287 pounds with the 300mm plate and 564 pounds with the 400mm plate. However, GRABO specifically warns that these values are laboratory breaking points and should never be treated as real-world working loads.

The practical manufacturer ratings are lower:

• Suction Plate 300: up to 150 lbs

• Suction Plate 400: up to 242 lbs

Always use the official working-load rating rather than laboratory maximums.

Vacuum Pressure and Lifting Capacity

The HighFlow's digital display shows vacuum pressure.

Holding force changes with vacuum level.

For example, GRABO's published chart for the 300mm plate shows approximately:

• 150 lbs at 3.0 psi

• 134 lbs at 2.5 psi

• 108 lbs at 2.0 psi

• 73.4 lbs at 1.5 psi

• 50.7 lbs at 1.0 psi

These figures demonstrate why checking the actual vacuum reading matters before lifting.

Do not assume the tool is holding at its maximum rated capacity simply because the motor is running.

Using the Grabo Suction Plate Correctly

Before lifting:

Inspect the plate.

Inspect the foam seal.

Confirm the locking pins are fully secured.

Center the suction plate on the material.

Turn on the HighFlow.

Allow vacuum pressure to develop.

Check the display.

Confirm the pressure is appropriate for the load.

Test the grip before fully lifting.

Then move the material in a controlled manner.

Avoid sudden jerking or swinging.

Surface Conditions Matter

Vacuum performance can change based on the material surface.

Factors include:

• Porosity

• Roughness

• Dust

• Water

• Cracks

• Texture

• Curvature

• Surface contamination

The HighFlow technical specification identifies applicable surfaces with limited peak and valley variation and limited curvature.

A severely uneven surface may not allow the foam to establish a reliable seal.

Benefits of a Grabo HighFlow Suction Plate

The main benefit is easier material handling.

Potential advantages include:

• Larger gripping area

• Higher lifting capacity

• Better grip on porous products

• Faster paver installation

• Reduced need for edge gripping

• Better control of large slabs

• Easier repetitive material handling

For professional paver crews, reducing the effort required for each individual unit can have a meaningful impact over hundreds of lifts.

Grabo Suction Plate for Hardscape Contractors

Hardscape contractors frequently handle:

• Concrete pavers

• Porcelain pavers

• Natural stone

• Slabs

• Wall caps

• Large masonry products

Porous concrete products are particularly well suited to the HighFlow concept.

The 300mm plate handles many medium-to-large products, while the 400mm plate provides additional capacity for oversized units.

For crews working with increasingly popular large-format pavers, the larger plate can be especially useful.

Grabo Suction Plate Maintenance

Keep the plate clean.

Regularly inspect:

• Locking pins

• Foam seal

• Plate body

• Seal recess

• Attachment points

Remove dust and debris that could prevent proper sealing.

Do not continue using a visibly damaged plate.

The suction plate is a load-handling component, so damage should be treated seriously.

Frequently Asked Questions About the Grabo Suction Plate for Grabo High Flow

What is the Grabo Suction Plate for Grabo High Flow?

It is a plate attachment that increases the suction area of the GRABO HighFlow for lifting large, heavy, and porous materials.

What size is the Grabo Suction Plate 300?

It measures approximately 12 x 12 inches, or 300 x 300 mm.

How much can the Suction Plate 300 lift?

GRABO rates the standard 300mm plate for up to 150 lbs, or 68 kg.

What size is the Grabo Suction Plate 400?

The larger version measures approximately 16 x 16 inches, or 400 x 400 mm.

How much can the Suction Plate 400 lift?

GRABO currently rates it for up to 242 lbs, or 110 kg.

Does the Suction Plate 300 come with the Grabo HighFlow?

Yes. GRABO's current HighFlow operator manual lists the 300mm plate with SMART CUT foam seal among the standard kit components.

Does a replacement suction plate include the foam seal?

Not necessarily. GRABO's current replacement plate listings state that plate-only products do not include the foam seal.

How does the suction plate attach?

It connects to the GRABO HighFlow using four quick-lock or spring-lock pins.

Is the Grabo suction plate good for concrete pavers?

Yes. GRABO specifically designs the HighFlow suction plates for porous dry-cast pavers and similar materials.

Can it lift large bricks?

Yes. Large bricks are specifically listed as an application for the 300mm suction plate.

Which plate is better for heavy pavers?

The 400mm version provides the larger contact area and higher rated capacity, making it better suited to larger and heavier porous pavers.

Is the 400mm plate stronger than the 300mm plate?

Yes. The 400mm plate is rated for 242 lbs versus 150 lbs for the 300mm plate.

Can I use the suction plate on another GRABO model?

The 300mm and 400mm HighFlow suction plates are specifically designed for the GRABO HighFlow mounting system. Do not assume compatibility with other GRABO tools.

What happens if the foam seal is damaged?

A damaged foam seal can allow excessive air leakage and reduce holding force. Inspect and replace worn seals before lifting heavy materials.

Why is my GRABO HighFlow not holding a paver?

Possible causes include a worn foam seal, excessive material porosity, a dirty contact surface, insufficient pressure, an uneven surface, a damaged plate, blocked airflow, or an improperly secured plate.

Does the HighFlow show suction pressure?

Yes. The tool includes a digital pressure display, allowing the operator to monitor the vacuum level before and during lifting.

Can the HighFlow lift more than 150 pounds with the 300mm plate?

GRABO laboratory testing shows higher breaking forces under ideal conditions, but those are not working limits. The manufacturer states that laboratory breaking figures should never be treated as real-world lifting capacity.

Which Grabo Suction Plate for Grabo High Flow should I choose?

Choose the 300mm GRABO Suction Plate for general porous pavers, large bricks, and loads within its 150-pound rating. Choose the 400mm Suction Plate when working with larger pavers or slabs where the additional 16 x 16-inch contact area and 242-pound rating are beneficial. Both attach directly to the GRABO HighFlow using four quick-lock pins and are designed to increase gripping area on heavy porous construction materials.