Steel Frame, Aluminum I-beam, 3 & 5 Ton Tri-Adjustable Gantry Crane

Steel Frame, Aluminum I-beam, 3 & 5 Ton Capacity Adjustable Height Gantry Cranes | Wallace Cranes

Wallace steel frame, aluminum I-beam, 3 & 5-ton Tri-Adjustable gantry cranes are ideal for maintenance, manufacturing, repairs, and other material handling tasks.

Many customers use our cranes for HVAC, assembly, and repairs of physical equipment. Some of our current users include electrical utilities, municipal maintenance (including subways, buses, and building facilities), hospitals, universities, research institutions, and the military.

With adjustable height, span, tread, and caster frame spread, Wallace hybrid portable gantry cranes provide flexible lifting solutions. The steel frame and aluminum I-beam design make these cranes the ideal combination of high lifting capacity and reduced weight. We also offer all-steel tri-adjustable 3 and 5-ton gantry cranes.

Available accessories include manual or powered trolleys and hoists, jack kits for frequent crane height adjustments, and kart kits for transporting and/or storing cranes. Options for track mounting with V-groove casters and motorizing cranes are also available.

Crane Assembly Instructions

Crane Product Features

Combo (Steel & Aluminum) Dimensional Sketch

Combo (Steel & Aluminum) Dimensional Sketch – Click to enlarge

  • I-beam spans from 10′ – 15′ (up to 20′ spans on 1-ton models only)
  • Adjustable span allows inboard or outboard bracing
  • Adjustable span allows cantilever configuration overhang limited to 25% of the I-beam length
  • Adjustable legs permit crane height adjustment at 6″ increments
    • Raise height to go over equipment, material, etc…
    • Lower height to go under low ceilings, doorways, etc…
    • Legs can be set at different heights where floor or terrain is uneven-ideal for loading from dock to floor or from ground level to mezzanine
  • Adjustable caster tread to roll thru narrow aisles or doorways which prevents costly disassembly
    • Safety cable attached inside of caster frame tubes prevents overspreading when adjusting
  • Durable construction – high-quality heavy gauge steel and aluminum tubing are used
  • Self-aligning I-beam – Exclusive Wallace I-beam support system aligns off-center loads to avoid crane and trolley distortion
    • I-beam support system slides along the I-beam enabling fixed leg spacing adjustments and cantilever configurations
  • Height Adjusting Bolts – Main legs are equipped with spring-loaded bolts permitting crane height adjustments – they can be locked out until the desired height is reached, then unlocked to engage automatically
  • Casters equipped with 4 position swivel lock – when locked 90 degrees with each other, they position crane more firmly than a brake
    • Lock “lead” casters and unlock trailing casters to easily move and steer crane
    • Alternate steel V-grooved casters are available for use on angle iron track
  • Completely portable – Stress-proof steel pins with locking rings provide quick assembly and disassembly
    • Many aluminum crane models can be hand-carried
    • The optional “Kart Kit” is available and transforms your disassembled crane into a cart which allows easy transportation and storage

Crane Sizes and Model Numbers

Click on model numbers to view detailed parts lists / part location drawings, crane inspection, safety, and assembly instructions, and cantilever charts.

A B C D E F G H
Capacity Span Model Number Overall Height Clear Span Caster Frame Spread Leg Clear. Caster Dia. I-Beam Depth Ship Wt.
max min max min
3 Ton 10′ S6T10-A10AC 10’1″ 6’11” 6’0″ 6’6″ 4’0″ 13″ 8″ 10″ 606
S6T12-A10AC 12’8″ 8’3″ 5’0″ 10’0″ 6’0″ 15″ 8″ 10″ 727
S6T15-A10AC 15’11” 10’7″ 4’11” 10’0″ 6’0″ 15″ 8″ 12″ 936
S6T18-A10AC 18’7″ 12’0″ 3’11” 12’11” 7’5″ 16″ 8″ 12″ 1073
3T24-A10AC 23’7″ 15’2″ 2’9″ 14’0″ 9’6″ 14″ 8″ 12″ 1958
15′ S6T10-A15AC 10’2″ 6’11” 11’1″ 6’6″ 4’0″ 14″ 8″ 12″* 719
S6T12-A15AC 12’8″ 8’3″ 10’1″ 10’0″ 6’0″ 17″ 8″ 12″* 840
S6T15-A15AC 15’10” 10’6″ 9’10” 10’0″ 6’0″ 15″ 8″ 12″* 1023
S6T18-A15AC 18’7″ 12’0″ 8’11” 12’11” 7’5″ 16″ 8″ 12″* 1160
3T24-A15AC 23’7″ 15’2″ 7’9″ 14’0″ 9’6″ 14″ 8″ 12″* 2013
5 Ton 10′ 5T10-A10AC 10’6″ 6’10” 6’3″ 6’5″ 4’11” 12″ 8″ 12″ 1006
5T15-A10AC 14’8″ 9’5″ 5’1″ 8’11” 6’5″ 12″ 8″ 12″ 1260
5T19-A10AC 19’0″ 12’2″ 3’11” 11’5″ 7’11” 12″ 8″ 12″ 1537
5T24-A10AC 23’7″ 15’2″ 2’8″ 14’0″ 9’6″ 12″ 8″ 12″ 1927
15′ 5T10-A15AC 10’6″ 6’10” 11’3″ 6’5″ 4’11” 13″ 8″ 12″* 1092
5T15-A15AC 14’8″ 9’5″ 10’2″ 8’11” 6’5″ 14″ 8″ 12″* 1346
5T19-A15AC 19’0″ 12’2″ 9’0″ 11’5″ 7’11” 14″ 8″ 12″* 1623
5T24-A15AC 23’7″ 15’2″ 7’9″ 14’0″ 9’6″ 14″ 8″ 12″* 2013



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