"L-Series" Lightweight Laydown Buckets with 15" x 22" Clamshell Gate – Vertical Discharge Type

GAR-BRO "L-Series" Lightweight Laydown Bucket – 4 Cu. Yd. Vertical Discharge with 15" x 22" Clamshell Gate

The GAR-BRO 4126-L is a 4 cubic yard lightweight laydown concrete bucket engineered for crane-assisted concrete placement where a low loading height and large capacity are required simultaneously. Designed and manufactured in the United States by GAR-BRO Manufacturing Co. — a construction equipment supplier with a track record dating to 1923 — this bucket is built to meet or exceed ASME standards. The vertical discharge configuration with a 15" x 22" double clamshell gate makes it well suited for general contractors placing concrete in slab, flatwork, and other horizontal applications. Its laydown profile keeps the loading height at just 39 inches, reducing the reach required from ready-mix trucks or pump lines on the job site.

Technical Specifications

"L-Series" Lightweight Laydown Bucket Full Size Range

*22"x32" Gate also available on these items. All "L-Series" Laydown Buckets with 15"x22" gates listed above use Item 409 Accordion Hopper.

The L-Series distinguishes itself from standard round-gate concrete buckets by combining a low-profile laydown form factor with a large-volume capacity, allowing contractors to load from standard ready-mix trucks without elevated staging while still moving full cubic yard loads per crane cycle. The optional 22" x 32" gate upgrade and available Side Chute accessory provide additional placement flexibility that upright or round-gate buckets cannot match in the same weight class.

Key Features & Benefits

Low Loading Height

At just 39 inches, the loading height of the 4126-L allows ready-mix trucks to discharge directly into the bucket without the need for elevated platforms or additional transfer equipment. This reduces setup time and labor on the job site.

Lightweight Construction

The L-Series designation reflects a lightweight design philosophy that delivers a large 4 cubic yard rated capacity while keeping the bucket weight at 2,775 lbs. A lower tare weight means more of the crane's rated capacity is available for the concrete payload.

15" x 22" Double Clamshell Gate with Vertical Discharge

The vertical discharge clamshell gate directs concrete flow downward for controlled placement in flatwork and slab applications. The 15" x 22" gate opening provides a substantial discharge area, and an optional 22" x 32" gate is available for jobs requiring higher flow rates.

Optional 22" x 32" Gate Upgrade

For applications demanding faster discharge or handling stiffer mixes, the larger 22" x 32" gate option is available on the 4126-L. This allows the same bucket to be configured for a wider range of concrete types and placement conditions.

Item 409 Accordion Hopper Compatibility

The 4126-L is compatible with the optional Item 409 Accordion Hopper, which funnels concrete from the bucket into narrow forms and helps prevent segregation caused by free fall. This accessory extends the bucket's utility to tighter or more confined placement scenarios.

Optional Side Chute

An optional Side Chute is available for the L-Series, enabling lateral concrete discharge when vertical placement is not practical. This adds versatility for edge pours, wall forms, or other placements where direct vertical discharge is obstructed.

ASME-Compliant Design

All GAR-BRO buckets are designed to meet or exceed ASME standards, providing contractors with confidence in the structural integrity and safety of the lifting equipment. This is particularly relevant on job sites where crane-lifted loads are subject to inspection or compliance requirements.

Common Applications

Slab and Flatwork Concrete Placement

The laydown profile and vertical discharge gate make the 4126-L well suited for placing concrete in horizontal slab pours where a low, wide bucket profile is advantageous for crane positioning and discharge control.

Large-Volume Crane-Assisted Pours

At 4 cubic yards rated capacity, the 4126-L is appropriate for high-volume placements where minimizing the number of crane cycles reduces overall pour time and crane costs.

Ready-Mix Truck Direct Loading

The 39-inch loading height allows direct loading from a standard ready-mix truck chute without elevated staging, making it practical for ground-level loading operations on congested job sites.

Placement with Accordion Hopper into Narrow Forms

When paired with the optional Item 409 Accordion Hopper, the bucket can direct concrete into narrower form openings while reducing free-fall segregation, expanding its use to wall and column placements.

Side Discharge Applications

With the optional Side Chute installed, the bucket can discharge laterally, accommodating placements where the crane cannot position the bucket directly over the target area for vertical discharge.

Compatible Materials

• Standard ready-mix concrete
• General-purpose concrete mixes

Product Documents

• GAR-BRO Product Catalog (English)
• GAR-BRO Product Catalog (Español)
• 416-L thru 4236-L (Old Style) Parts List
• 446-L thru 4186-L (New Style) Parts List

Frequently Asked Questions

Q: Is the 22" x 32" gate available as an option on the 4126-L?
A: Yes. The optional 22" x 32" gate is available on the 4126-L (and other L-Series models marked with an asterisk in the size chart). Contact the factory or your distributor to specify this option at time of order.

Q: Does the 4126-L require the Item 409 Accordion Hopper?
A: The Item 409 Accordion Hopper is optional, not required. All L-Series laydown buckets with 15"x22" gates are compatible with the Item 409 Accordion Hopper when narrower form placements or free-fall segregation control is needed.

Q: Is a Side Chute available for the 4126-L?
A: Yes. An optional Side Chute is available for the L-Series bucket, enabling lateral discharge when vertical placement is not feasible.

Q: Where can I find parts drawings for the 4126-L?
A: Parts drawings are available in two versions depending on bucket style. The old-style parts list covers 416-L through 4236-L, and the new-style parts list covers 446-L through 4186-L. Both PDFs are linked in the Product Documents section above.

Q: What standards do GAR-BRO buckets meet?
A: All GAR-BRO buckets and skip pans are designed to meet or exceed ASME standards.

Q: How do I get pricing for the 4126-L?
A: Prices and specifications for the L-Series and larger items are available upon request. Contact Diamond Tool Store or call GAR-BRO directly at 1-800-643-8192 for a quote.