Gar-Bro R- Series Lightweight Round-Gate Concrete Bucket

Gar-Bro 410-R R-Series Lightweight Round-Gate Concrete Bucket — 1/3 Cubic Yard

The Gar-Bro 410-R is a 1/3 cubic yard capacity concrete placement bucket from the R-Series Lightweight Round-Gate line, engineered for general contractors who need reliable, efficient concrete delivery by crane or hoist. Weighing only 237 pounds and featuring a 16-inch diameter round gate, this bucket is designed to meet or exceed ASME standards for lifting and material handling. Its compact 34-inch loading height and 36-inch inside diameter make it well-suited for tight pours and precise placement on commercial, industrial, and residential jobsites.

Compared to heavier-duty G-Series clamshell gate buckets, the R-Series offers a lighter overall weight without sacrificing structural integrity, making it a practical choice when weight savings reduce crane load cycles and improve jobsite efficiency. The trademarked combination of lifting bail, hooped-type wrap-around gate lever, gate, and gate springs provides a proven, operator-friendly design that Gar-Bro has refined since 1923.

Key Features & Benefits

16-Inch Diameter Round Gate

The standard 16-inch round gate on all R-Series buckets delivers controlled, consistent concrete flow. The circular gate design reduces clogging compared to flat-gate configurations and allows operators to modulate pour rate effectively, which is critical when filling forms or columns with limited access.

Hooped-Type Wrap-Around Gate Lever

Gar-Bro's proprietary hooped gate lever is a registered trade dress element that gives operators a secure, ergonomic grip when opening and closing the gate under load. This design minimizes operator fatigue and reduces the risk of accidental gate release, contributing to both safety and productivity on the pour.

Lightweight Construction

At 237 pounds, the 410-R is one of the lightest buckets in its capacity class. Lower tare weight means more of the crane's rated capacity can be used for concrete payload, reducing the number of lifts required and improving cycle times on large pours.

ASME-Compliant Design

All Gar-Bro buckets are engineered to meet or exceed ASME standards for material handling equipment. This compliance is essential for contractors working on projects with strict safety specifications, insurance requirements, or inspection protocols.

Gate Springs

Integrated gate springs are part of Gar-Bro's proprietary trade dress and serve a functional purpose: they assist in gate closure after each pour, reducing operator effort and ensuring the gate seats properly to prevent concrete leakage during transit between pours.

Optional Accessories and Attachments

The 410-R accepts a wide range of optional accessories including the Item 409 Accordion Hopper for funnel-directed pours, forklift pockets for ground-level movement, a 1/4 yard Extension Collar to increase capacity, and the GAR-4 grouting attachment for specialty grouting applications. This modularity allows one bucket to serve multiple jobsite functions.

Common Applications

Crane-Placed Concrete Pours

The 410-R is purpose-built for crane placement of concrete on construction sites where pump trucks cannot access the pour location. Its lifting bail and ASME-compliant structure make it safe for overhead lifts in multi-story and infrastructure applications.

Column and Wall Pours

The 16-inch round gate allows precise delivery into column forms and wall forms where flow control is critical to avoid segregation or blowout. The operator-controlled gate lever gives finishers the ability to stop and start flow on demand.

Foundation and Footing Work

For residential and commercial foundations where truck access is limited, the 410-R provides a reliable method to move concrete from a transit mixer to the pour point using a small crane or excavator with a lifting attachment.

Precast Concrete Production

In precast yards, the 410-R can be used to fill molds and forms with precision, particularly for smaller precast elements where a 1/3 CY pour volume is appropriate and overfilling must be avoided.

Infrastructure and Bridge Work

On bridge decks, retaining walls, and other infrastructure projects where pump placement is impractical, the R-Series bucket provides a dependable alternative that keeps the pour moving efficiently.

Grouting Applications

With the optional GAR-4 grouting attachment, the 410-R can transition from standard concrete placement to grouting tasks, making it a versatile tool for post-tensioning, anchor bolt grouting, and similar specialty work.

Compatible Materials

• Standard ready-mix concrete
• Lightweight concrete mixes
• Grout and cement grout mixtures (with optional GAR-4 grouting attachment)
• Flowable fill
• Controlled low-strength material (CLSM)
• Shotcrete pre-blended mixes (dry)

Available Models — R-Series Lightweight Round-Gate Buckets

Product Documents

• Download Specifications and Dimensions PDF
• Download Parts List PDF
• Round Concrete Buckets Brochure (PDF)
• Gar-Bro Full Product Catalog (English)
• Gar-Bro Full Product Catalog (Español)

Technical Specifications

Frequently Asked Questions

Q: What gate size does the 410-R use?
A: All R-Series buckets, including the 410-R, feature a standard 16-inch diameter round gate. This size is fixed across the R-Series line.

Q: Can the 410-R be moved with a forklift?
A: Yes. Optional forklift pockets are available for all R-Series buckets, including the 410-R, allowing ground-level repositioning between crane lifts without additional rigging.

Q: Is an extension collar available to increase the 410-R's capacity?
A: Yes. A 1/4 yard extension collar is available for the 410-R and other R-Series and G-Series buckets. This allows a modest capacity increase when site conditions allow.

Q: What accessories are compatible with the 410-R?
A: The 410-R is compatible with the Item 409 Accordion Hopper for directed discharge, optional forklift pockets, a 1/4 yard extension collar, and the GAR-4 grouting attachment for grouting applications.

Q: Does the 410-R meet safety standards for overhead lifting?
A: Yes. All Gar-Bro buckets are designed to meet or exceed ASME standards for material handling, making them appropriate for crane-assisted overhead concrete placement on regulated jobsites.

Q: How does the R-Series differ from the G-Series buckets?
A: The R-Series uses a 16-inch round gate and is designed as a lightweight option for general contractors. The G-Series uses a larger rectangular clamshell gate (15x18 to 15x22 inches) and is the heavier-duty option suited for a wider range of concrete types and higher-volume placements. The R-Series prioritizes reduced tare weight and ease of operation for standard pours.