HFP Mechanical Grab with Stiff Arm | 4.5–6.5T Excavators | 45mm Pin

COMMERCIAL & TRADE ENQUIRIES:

OEM Dealers | Hire Fleets | Civil Contractors | Local Councils

We supply standardised attachment packages, bulk order pricing, and custom ear/pin geometry matching for machinery dealers and equipment fleets. Call our workshop direct on 03 9762 6483 or email sales@stengineering.com.au to discuss commercial supply terms.

Product Overview

The HFP Mechanical Grab with Stiff Arm is engineered for 4.5–6.5 tonne excavators running 45mm pin configurations, delivering reliable, low-maintenance material handling performance across tree work, landscaping, site clean-ups, rock placement, and general material movement applications.

Designed for operators prioritizing simplicity, durability, and controlled operation, this mechanically actuated grab delivers dependable gripping performance without requiring auxiliary hydraulics.

Utilizing excavator bucket curl action for actuation, the mechanical grab system reduces hydraulic complexity while maintaining excellent gripping capability across irregular and bulky materials.

The included stiff arm and mounting bracket provide stable operation, correct geometry, and controlled material handling performance in demanding commercial environments.

Designed for Australian conditions and suited to contractors, hire fleets, councils, OEM applications, and civil construction operators requiring durable long-term attachment performance.

Backed locally with parts, technical support, and after-sales service.

Key Features & Benefits

• Suits 4.5–6.5 Tonne Excavators: Purpose-built for 5-tonne class excavator linkages
• Suits 45mm Pin Configurations: Custom-configured to match your machine ear widths and pin geometries
• Mechanical Non-Hydraulic Operation: Actuates directly via bucket curl — zero extra lines, valves, or hydraulic wear
• Heavy-Duty 5-Finger Configuration: Interlocking 2/3 jaw layout for maximum grip on rocks, timber, scrap, and demolition debris
• Stiff Arm Included: Comes complete with heavy-duty stiff arm and weld-on mounting bracket for rigid geometry
• Low-Maintenance Mechanical Design: No hydraulic seals to leak, hoses to burst, or pumps to strain
• Versatile Jaw Options: Available with smooth fingers or grip strips depending on job requirements
• Fleet & Council Ready: Bulletproof, low-risk design ideal for multi-driver hire fleets and municipal teams
• Designed for Australian Conditions: Built with high-tensile structural steel for long-term durability
• Backed Locally: Full access to Australian spare parts, workshop modifications, and local technical support

Suitable Applications

• Tree Work & Arborists: Handling heavy logs, timber, branches, and green waste clearance
• Landscaping & Rock Placement: Retaining wall stone placement, soil sorting, and site prep
• Demolition & Scrap Handling: Materials sorting, site cleanup, and heavy rubble clearance
• Civil Construction & Earthmoving: General material handling and job site housekeeping
• Hire Fleets & Equipment Supply: Simple, low-maintenance attachments for rental fleets and machinery packages
• Municipal & Public Works: Reliable maintenance equipment with zero hydraulic setup downtime

Mechanical Operation Benefits

Mechanical grabs utilize excavator bucket curl action rather than auxiliary hydraulics, making them ideal for:

• Lower Maintenance Requirements: Eliminates hydraulic hose damage, seal kit replacements, and valve failure
• Simpler Machine Setup: Fast attachment swapping with no hydraulic plumbing required
• Reduced Auxiliary System Wear: Keeps machine hydraulic systems cool and unburdened
• Fleet Standardization: Easy cross-utilization across various machines in commercial hire fleets

Technical Specifications

Package Includes

• 1x Mechanical Grab Assembly (5-Finger Configuration)
• 1x Heavy-Duty Stiff Arm
• 1x Weld-On Mounting Bracket (Supplied complete and ready for installation)

Fitment Confirmation Required

To ensure correct fitment and optimal operation, please provide the following details when placing your order:

• Machine Make & Model
• Pin Diameter
• Pin Centre to Pin Centre
• Width Between Ears
• Quick Hitch Type (if applicable)

This attachment is custom-configured to suit your excavator setup. Final configuration and fitment are based on the specifications supplied by the customer. Machines fitted with quick hitches may require additional clearance considerations depending on hitch design and geometry.

Excavator Size & Fitment

Excavator tonnage ranges listed are intended as a general guide only. Machine operating weights, linkage geometry, quick hitch configurations, arm design, and intended application can vary significantly between manufacturers and models.

Machines within the same tonne range may utilize different pin sizes, pickup geometries, and linkage configurations depending on manufacturer design and operating requirements.

Larger pin configurations and heavier-duty hitch setups may require reinforced ear configurations, heavier structural components, and larger grab assemblies to ensure safe operation and long-term durability.

Factors affecting exact sizing include:

• Pin diameter
• Pickup geometry
• Hydraulic quick hitch configuration
• Lift capacity requirements
• Machine stability & operating environment

For this reason, all grabs are configured based on the machine specifications supplied at the time of order to ensure correct fitment, structural suitability, and optimal performance.

Freight & Logistics

We ship daily Australia-wide. Options include:

• Local Freight Depot: Recommended for standard pickup if you don't have unloading equipment on site.
• Commercial Business Address: Requires a forklift on site for unloading.
• Residential / Farm Property: Tail lift or property delivery available access permitting (carrier surcharges apply) .

Contact our sales team with your suburb and postcode for an accurate freight quote prior to ordering.

Why Choose HFP Attachments?

Most suppliers just import and move boxes — then you're on your own. HFP is different. We don't just sell attachments; we support them, service them, modify them in-house, and stand behind them.

• Local Workshop Support: Imported attachments fully inspected, supported, and backed by our Australian workshop
• In-House Australian Manufacturing: We manufacture our own Aussie-made attachment ranges in-house, so we understand real-world engineering, geometry, and stress points
• Custom Pin & Ear Adjustments: Workshop-based modifications and custom alignment available to guarantee perfect fitment to your machine
• Local Parts & Service: Full access to local replacement parts, wear components, and technical advice
• Direct Local Warranty: Handle all warranty enquiries directly with our Australian team — no waiting on overseas factory assessments or runarounds

Contact & Ordering Information

• Phone: 03 9762 6483
• Email: sales@stengineering.com.au
• Order Online: Available direct via website checkout