Five-lobed Excavator Grabbing Unloading Arm – Professional Material Handling Equipment

Excavator Long Reach Boom with Five-Petal Grab – 22–48T Material Handler from Source Factory

Loading and unloading bulk materials from railway cars, port vessels and scrap yards demands reach, power and precision that a standard excavator bucket simply cannot deliver. The Five-Petal Grab Unloading Arm transforms a 22–48 ton excavator into a dedicated high-reach material handler, with interchangeable shell bucket and five-petal grab attachments for fast, controlled bulk transfer in the toughest industrial environments.

Why the Five-Petal Grab Unloading Arm Is Essential for Bulk Material Handling

Bulk material handlers face three constant challenges: reaching deep into rail cars and ship holds, gripping irregular loads like scrap steel, and doing it fast enough to meet turnaround schedules. A standard excavator with a digging bucket cannot solve any of them. The Five-Petal Grab Unloading Arm covers all three:

• Extended Reach: Long-reach boom and stick combinations deliver a working range up to 13,000 mm, accessing deep rail cars, vessel holds and elevated stockpiles without repositioning.

• Dual Attachment Flexibility: Swap between a five-petal grab for scrap steel and irregular loads, or a clamshell bucket for sand, gravel, grain and bulk powders — one arm, multiple materials.

• Heavy-Duty Grip: Five-petal hydraulic grab encloses irregular scrap, logs and loose debris with even clamping force, minimizing spillage and maximizing per-cycle payload.

Technical Features That Drive Productivity

Three Tonnage Classes for Every Operation

The 22–27 ton class suits medium-duty rail yard and small port operations. The 30–38 ton class handles mainstream port and steel mill workloads. The 40–48 ton class is purpose-built for heavy scrap handling and deep-vessel unloading at major terminals.

Built to Last: High-Strength Materials & Surface Treatment

The boom and stick are fabricated from high-strength alloy steel plate with excellent yield strength and reduced dead weight. All pivot pins and shafts use heat-treated 40Cr alloy steel for superior toughness under cyclic loading. High-pressure oil tubes with copper-bushed boom base joints ensure smooth hydraulic flow, while full shot blasting removes surface rust and extends the arm's service life in outdoor, high-humidity environments.

Cost-Effective Alternative to Dedicated Material Handlers

A purpose-built material handler costs significantly more than a standard excavator. The Five-Petal Grab Unloading Arm gives you:

• Lower capital investment—use the excavator you already own.

• One machine, dual roles—remove the arm and the excavator returns to digging, lifting or demolition.

• Reduced turnaround time—high-reach unloading clears rail cars and trucks faster than conveyor or crane methods.

Why Choose Tiannuo – Your Source Factory for Excavator Attachments

Shandong Tiannuo Construction Machinery Co., Ltd. is a 10+ year established source factory based in Jining, Shandong – the heartland of China’s construction machinery industry. We specialize in excavator modification and heavy-duty attachments, exporting factory-direct to distributors, contractors and end-users across Europe, North America, Australia, the Middle East and Southeast Asia. When you buy from Tiannuo, you buy from the workshop that welds the steel, not a trading middleman.

A Full-Range Excavator Attachment Manufacturer

Beyond the Five-Petal Grab Unloading Arm, our product line covers every major excavator modification and attachment category:

• Excavator modifications: Long reach booms, high reach demolition arms, tunnel booms, amphibious conversions

• Long / extended arms: Custom boom + stick sets from 12 m to 28 m reach for dredging, demolition and deep excavation

• Railway maintenance equipment: Hydraulic rail clamps, ballast tampers, sleeper changers, brush cutters, ballast plows, rail-mounted excavators

• Material handling attachments: Five-petal grabs, orange-peel grabs, clamshell buckets, timber grapples, scrap grapples, hydraulic rotating grabs

• Standard & special buckets: Rock buckets, tilt buckets, ditching buckets, screening buckets, ripper buckets

• Hydraulic attachments: Breakers, quick couplers, thumbs, augers, compactors, shears

Customization Built Around Your Job Site

No two job sites are identical, so no two Tiannuo attachments have to be either. Send us your excavator make, model, tonnage and target application – our engineering team will tailor the boom length, working range, hydraulic circuit, hitch bracket, paint color and even OEM branding to your exact specification. Small MOQ, fast lead time, and full technical drawings before production.

Every unit ships with:

• High-strength alloy steel boom and stick, factory-tested for reach and payload

• 40Cr heat-treated pins and shafts, copper-bushed pivot joints, high-pressure hydraulic piping

• Full shot blasting and anti-corrosion coating for outdoor durability

• Universal hitch compatible with CAT, Komatsu, Hitachi, SANY, SDLG, Doosan, Volvo, Hyundai, Kobelco and more

• English operation manual, spare parts kit, and lifetime remote technical support from Jining, Shandong

Common Applications

• Railway freight yards: Loading and unloading bulk cargo from train cars

• Port and wharf operations: Material transfer from vessels, barges and dockside stockpiles

• Steel mills and scrap yards: Handling scrap steel, billets and raw materials

• Waste and recycling: Gripping irregular debris, demolition waste and mixed recyclables

Partner with a Reliable Manufacturer

The Five-Petal Grab Unloading Arm is now available for sale, with three tonnage classes covering 22–48 ton excavators, interchangeable shell bucket and five-petal grab attachments, and full customization on arm length, working range and hydraulic configuration. Please contact us for the latest catalog, quotation and product video. Shandong Tiannuo Construction Machinery Co., Ltd. is located at No.369, Hard Innovation Industrial Park, Deyuan Road, Yanzhou District, Jining City, Shandong Province. Visit www.stnd-machinery.com or contact us by email at arm@stnd-machinery.com for more information about the Five-Petal Grab Unloading Arm.

Upgrade your material handling fleet with the Five-Petal Grab Unloading Arm—the high-reach, dual-attachment solution that turns your excavator into a rail, port and scrap handling powerhouse.