Grooved UHMWPE Outrigger Pads are reusable heavy-equipment support panels featuring solid square structures, central concentric-groove working areas and reinforced carrying handles. Practical reference sizes include 500 × 500 × 50 mm, 600 × 600 × 50–60 mm, 800 × 800 × 80 mm and 1000 × 1000 × 100 mm for mobile cranes, concrete pumps, boom trucks and other stabilizer-equipped machinery.
Grooved UHMWPE Outrigger Pads are heavy-duty engineering-plastic support panels designed for mobile crane outriggers, boom truck stabilizers, concrete pump support legs, truck-mounted cranes, aerial work platforms and other machinery equipped with hydraulic stabilizers.
The product shown features a solid square panel, a central circular working area formed by multiple concentric grooves and a reinforced carrying handle positioned along one edge. The grooved section provides a clearly identifiable upper working face and additional surface texture beneath compatible stabilizer feet.
Unlike temporary roadway mats that are laid continuously to create a vehicle-access route, outrigger pads are positioned directly beneath individual equipment feet. Their primary purpose is to increase the geometric contact area between the original stabilizer foot and the supporting surface.
The concentric grooves should not be described as a universal locking system. The equipment foot must still be positioned correctly, and the final pad dimensions, thickness and material grade must be selected according to the actual outrigger reaction and supporting conditions.
The exact dimensions of the pad shown cannot be confirmed from the product photograph alone. The following specifications are practical reference sizes for this type of solid UHMWPE support panel.
| Reference Pad Size | Reference Groove Area | Typical Application |
|---|---|---|
| 400 × 400 × 40 mm | Ø180–220 mm | Compact stabilizers and smaller service equipment |
| 500 × 500 × 50 mm | Ø220–280 mm | Utility vehicles and compact crane support |
| 600 × 600 × 50 mm | Ø250–320 mm | General boom trucks and truck-mounted cranes |
| 600 × 600 × 60 mm | Ø280–350 mm | General mobile crane and pump truck support |
| 700 × 700 × 60 mm | Ø320–400 mm | Medium stabilizer support requirements |
| 800 × 800 × 80 mm | Ø380–450 mm | Concrete pumps and medium heavy equipment |
| 900 × 900 × 80 mm | Ø400–480 mm | Larger crane and pump truck stabilizers |
| 1000 × 1000 × 100 mm | Ø450–550 mm | Large mobile-equipment support |
| 1200 × 1200 × 100 mm | Ø550–650 mm | Large-format heavy-equipment support |
The approximately 400 × 400 × 40 mm and 500 × 500 × 50 mm formats provide compact support options where storage space and repeated handling are important.
The approximately 600 × 600 × 50–60 mm format provides a practical balance between geometric support area, panel thickness, finished product weight and equipment-storage requirements.
Medium products such as approximately 700 × 700 × 60 mm and 800 × 800 × 80 mm provide broader support areas for mobile cranes, concrete pumps, boom trucks and other stabilizer-equipped machinery.
Larger panels such as approximately 900 × 900 × 80 mm, 1000 × 1000 × 100 mm and 1200 × 1200 × 100 mm require suitable consideration for transportation, finished weight, vehicle storage and handling methods.
A practical concentric-groove depth may range from approximately 3 mm to 12 mm, depending on the total panel thickness, groove profile and equipment-foot structure. The remaining solid material beneath the grooved area must be considered during product design.
The dimensions above are reference options rather than universal safe-working-load ratings. Final specifications should be selected according to the maximum individual outrigger reaction, original equipment-foot dimensions, required support area, UHMWPE grade, panel stiffness and supporting surface condition.
| Specification | Typical Reference |
|---|---|
| Product type | Grooved crane and heavy-equipment outrigger support pad |
| Primary material | UHMWPE |
| Main shape | Square |
| Alternative shapes | Rectangular, round and clipped-corner formats |
| Working surface | Central concentric-groove working area |
| Reference pad size | Approximately 400 × 400 mm to 1200 × 1200 mm |
| Reference thickness | Approximately 40–100 mm |
| Reference groove depth | Approximately 3–12 mm |
| Handling feature | Reinforced flexible or metal carrying handle |
| Construction | Solid engineering-plastic panel |
| Main applications | Mobile cranes, concrete pumps, boom trucks and heavy machinery |
Final dimensions, thickness, UHMWPE material grade, groove diameter, groove depth, outside shape and handle arrangement should always be matched to the actual equipment and operating requirements.
The defining feature of Grooved UHMWPE Outrigger Pads is the central circular working area formed by several concentric grooves.
This surface is different from a completely smooth panel, a deep circular recess or a raised diamond-pattern pad. The concentric structure creates a defined equipment-foot area while retaining a relatively flat overall support surface.
The grooved working area can provide:
The grooves should not be treated as a substitute for correct product sizing, stable supporting ground or suitable stabilizer positioning.
Mud, stones, metal fragments, oil and other debris should be removed from the grooved section before equipment load is applied.
A grooved working surface and a deep positioning recess are not the same structure.
Concentric grooves normally remove only a limited amount of material and provide a textured circular contact area. A deep recess removes more material and may partially surround the original equipment foot.
The structure shown in the reference image is better described as a concentric-groove working area rather than a deep stabilizer-foot pocket.
This distinction is important because the groove profile should not be advertised as a mechanical locking system unless the finished design has been specifically engineered and verified for that purpose.
The outside diameter of the concentric-groove area should be considered together with the actual stabilizer-foot dimensions.
Important measurements include:
For example, an equipment foot measuring approximately Ø280 mm may use a grooved working area with an outside diameter of approximately Ø300–350 mm. The final relationship should be confirmed from the equipment dimensions and approved product drawing.
The equipment foot should remain within the intended working area without resting close to the unsupported outside edge of the panel.
The groove depth affects the remaining solid UHMWPE thickness beneath the main equipment-foot contact area.
A shallow profile can provide visible surface texture while retaining most of the original panel thickness. Deeper grooves create a more pronounced pattern but remove more material from the working section.
Groove depth should therefore consider:
The deepest available groove is not automatically the best option. The profile should provide the required surface structure while retaining an appropriate solid support section.
The product combines its circular grooved working area with a thick, solid square panel.
A square support structure provides:
The stabilizer foot should remain within the intended central working area. Positioning the equipment foot near an unsupported panel edge creates a different loading condition from positioning it within the main support area.
The panel should not span large voids, deep depressions, unstable edges or unsupported openings.
The reference product includes a reinforced carrying handle installed along one side of the support panel.
The handle provides a defined gripping point when the pad needs to be:
Before moving the product, inspect:
The handle is intended for transportation and positioning. It should not be treated as a structural component carrying the equipment load.
Large solid pads may require two-person handling or suitable mechanical equipment even when carrying handles are installed.
The primary material used for Grooved UHMWPE Outrigger Pads is ultra-high-molecular-weight polyethylene, commonly abbreviated as UHMWPE.
UHMWPE is a thermoplastic polyethylene containing extremely long molecular chains. It is associated with high toughness, high impact strength, extremely low moisture absorption, low friction and strong abrasion resistance.
For a general material explanation, see the Wikipedia article about ultra-high-molecular-weight polyethylene.
Practical UHMWPE characteristics for reusable support pads include:
Chemical resistance should not be interpreted as universal resistance to every substance. Actual compatibility depends on the chemical, concentration, exposure temperature, contact time and selected UHMWPE grade.
Outrigger support pads are repeatedly transported, positioned, loaded, recovered and stored.
During regular operation, they may experience:
The toughness and abrasion resistance of UHMWPE make the material practical for reusable industrial support components.
Products showing serious cracks, deep cuts, severe deformation, damaged grooves or loose handle attachment points should be evaluated before returning to demanding service.
Mobile cranes, concrete pumps and boom trucks frequently operate outdoors.
The support pads may be exposed to:
The extremely low moisture absorption of UHMWPE is practical for reusable support products operating in wet and changing environments.
The pads should still be cleaned and inspected after wet, muddy or contaminated use.
A hydraulic stabilizer transfers a concentrated reaction through a relatively small original equipment foot.
Grooved UHMWPE Outrigger Pads create a larger geometric contact area beneath that foot while providing a clearly defined central working surface.
The performance of the complete support arrangement depends on:
A larger panel provides a larger geometric footprint, but outside dimensions alone should not be treated as a universal safe-working-load guarantee.
The correct outrigger pad should not be selected only according to total machine weight or maximum crane lifting capacity.
Individual outrigger reactions can vary according to:
Important selection factors include:
Each support position should be evaluated independently because loads and supporting conditions can differ around the same machine.
Grooved UHMWPE Outrigger Pads can be used with many types of stabilizer-equipped machinery.
The correct pad dimensions, thickness, groove profile and material grade should always be matched to the actual equipment-support point.
Correct positioning is important when using a grooved support panel.
Before applying equipment load, confirm that:
The concentric grooves should remain free from excessive mud, oil, stones and metal debris.
Reusable support pads should be inspected before demanding equipment operation.
Check:
After operation, remove mud, sand, oil, gravel and other debris from the primary working surfaces.
During storage:
You can also view our complete range of crane outrigger pads for mobile cranes, concrete pumps, boom trucks, hydraulic stabilizer systems and other heavy machinery applications.
Grooved UHMWPE Outrigger Pads provide a practical support solution for mobile cranes, truck-mounted cranes, boom trucks, concrete pumps and other stabilizer-equipped machinery.
The product combines solid UHMWPE construction, a central concentric-groove working area and a reinforced carrying handle.
Typical reference specifications include approximately 400 × 400 × 40 mm, 500 × 500 × 50 mm, 600 × 600 × 50–60 mm, 700 × 700 × 60 mm, 800 × 800 × 80 mm and 1000 × 1000 × 100 mm.
Final pad dimensions, thickness, groove diameter, groove depth, UHMWPE material grade and handle configuration should always be selected according to the maximum individual stabilizer reaction, original equipment-foot dimensions, supporting surface condition and actual operating requirements.
Check drawings for full specifications and confirm materials according to service conditions to prevent product defects.
Inspect all key processing steps and fully verify dimensions, holes, grooves and fitting surfaces.
Deburr, chamfer and clean products for easy installation. Ensure uniform quality among batch products.
Choose appropriate packaging solutions based on product features to protect goods from collision, deformation and mixing during transit.
Unlike metal parts, engineering plastic components still require strict control over dimensions, holes, edges, surface, materials and assembly performance for equipment use.
Engineering plastic parts suit friction, guide, support, buffer, anti-corrosion and insulation areas. We supply UHMWPE, POM, PA, PP/PE components for conveyor, food, mining, machinery, chemical and cable systems, with custom OEM service available.
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