3AT47 47 Inch Class 3 Top Carriage Bar

The ALLPROFORKS® 3AT47 47 inch Class 3 top carriage bar is a weld-in upper rail for building or repairing a compact forklift carriage, pallet-fork frame, telehandler assembly, or other properly engineered material-handling attachment. Its 47-inch length provides useful fork-positioning room without the additional width of a 72-inch carriage. Manufactured from high-strength structural steel, the 3AT47 gives compatible ITA Class 3 hook-type forks the upper hanging and locking surface required in a correctly designed frame.

The 3AT47 is one fabrication component—not a complete carriage, finished attachment, or universal bolt-on replacement. Before ordering, confirm the ITA class, required rail length, fork-hook and lock dimensions, matching lower rail, frame layout, welding procedure, mounting structure, and specifications of the equipment that will carry the completed assembly.

Notched Upper Rail for Compact Carriage Construction

On an ITA hook-type carriage, each fork’s upper hook hangs from the top rail while its lower hook engages the bottom bar. Notches along the 3AT47’s upper edge provide positions for compatible fork locks. When the forks, rails, and locking hardware are correctly matched, the forks can move horizontally across the carriage and lock at spacing appropriate for the pallet or material being handled.

Both locks should engage fully before lifting. Routine inspections should check the notches, fork hooks, locking pins, rail, welds, and surrounding frame for wear, cracking, bending, looseness, or distortion. Damaged equipment should be removed from service until it has been properly evaluated.

The 47-inch width can suit compact frames used for standard pallets, packaged materials, farm supplies, warehouse goods, and similar loads. If the project requires a broader adjustment range, compare the 3AT72 72-inch Class 3 forklift top rail. Rail width affects available fork-positioning space, but it does not increase the capacity of the machine, forks, or completed attachment.

Buyers comparing different rail classes and lengths can also review the ALLPROFORKS carriage-bar sizing overview.

Matching the 3AB47 and Verifying the Finished Setup

PRO-Link specifies a 20-1/8-inch vertical rail setup for the 3AT47. Fabrication drawings may define their measurement points differently, so the installer must verify the applicable drawing, rail faces, finished spacing, and fork-hook engagement before cutting or welding. The upper and lower bars must remain straight, parallel, level, and correctly spaced so the forks engage without binding, excessive movement, or misalignment.

Pair this top rail with the separately sold ALLPROFORKS® 3AB47 47inch Class 3 lower fork carriage bar. The 3AT47 provides the upper hanging and locking surface, while the 3AB47 engages the lower fork hooks. Forks, backplates, frame members, couplers, mounting components, welding, and other required parts must be selected separately.

View the Matching 3AB47 Lower Bar

Installation should be completed by a qualified fabricator familiar with welded lift-truck carriages and material-handling structures. The finished assembly must be inspected and rated as a complete system. Capacity depends on the machine data plate, load center, forks, carriage structure, welds, coupler, attachment weight, and any applicable derating—not the rail length or number of locking positions.

For powered industrial trucks covered by OSHA, modifications affecting capacity or safe operation require the manufacturer’s prior written approval and updated capacity information. Review the applicable OSHA powered-industrial-truck requirements before modifying workplace equipment.

The 3AT47 is covered by PRO-Link’s one-year limited warranty against manufacturer’s defects, subject to the complete warranty terms.

Need Help Confirming Class 3 Fit? Contact PRO-Link

Questions & Answers

Is the 3AT47 the upper or lower Class 3 carriage bar?

The 3AT47 is the 47-inch upper bar. The corresponding 3AB47 lower bar provides the engagement surface for the forks’ lower hooks.

Does the 3AT47 include a complete forklift carriage?

No. It includes one weld-in upper rail. The lower bar, forks, frame, backplate, coupler, mounting components, welding, and other required parts are separate unless the listing expressly states otherwise.

Will this 47 inch Class 3 top carriage bar fit every forklift?

No. Compatibility depends on rail length, fork-hook geometry, fork locks, finished rail spacing, frame construction, mounting design, clearances, welding requirements, and complete equipment specifications.