Wallace 1 and 2 Ton Steel Tri-Adjustable Portable Cranes

Wallace portable 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 electric utilities, municipal maintenance (including subways, buses and building facilities), hospitals, universities, research institutions and the military. With adjustable height, span and tread, our all steel Wallace Tri-Adjustable Cranes provide flexible lifting solutions. Available accessories include manual or powered trolleys and hoists, jack kits for frequent crane height adjustments, and kart kits for transporting and/or storing crane. Options for track mounting with V-groove casters and motorizing cranes are also available – click on the accessories tab for more information.

Tri-Adjustable Round Tube Assembly and Inspection Instructions

Click to enlarge

Product Features

Tri-Adjustable Round Tube Dimensional Sketch

Tri-Adjustable Round Tube Dimensional Sketch – Click to enlarge

  • I-beam spans from 10′ – 35′
  • 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 adjustments 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 truck 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 tubing is 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 leg spacing adjustments and cantilever configurations
  • Height Adjusting Bolts – Main legs are equipped with spring loaded bolts permitting crane height adjustment – 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 break
    • 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
    • The optional “Kart Kit” is available and transforms your disassembled crane to a cart which allows easy transportation and storage

Crane Sizes and Model Numbers

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
1 Ton 10′ S2T10-S10AC 9’9″ 6’7″ 6’0″ 6’5″ 3’11” 10″ 6″ 6″ 471
S2T12-S10AC 12’4″ 7’10” 5’0″ 10’0″ 6’0″ 11″ 6″ 6″ 553
S2T15-S10AC 15’6″ 10’2″ 4’9″ 10’0″ 6’0″ 10″ 6″ 6″ 616
S2T18-S10AC 18’6″ 11’11” 3’9″ 12’11” 7’5″ 10″ 8″ 6″ 1075
S2T21-S10AC 21’8″ 14’3″ 3’6″ 12’11” 7’5″ 9″ 8″ 6″ 1045
15′ S2T10-S15AC 9’9″ 6’7″ 11’1″ 6’5″ 3’11” 11″ 6″ 8″ 624
S2T12-S15AC 12’4″ 7’10” 10’1″ 10’0″ 6’0″ 13″ 6″ 8″ 706
S2T15-S15AC 15’6″ 10’2″ 9’10” 10’0″ 6’0″ 11″ 6″ 8″ 769
S2T18-S15AC 18’6″ 12’0″ 8’10” 12’11” 7’5″ 12″ 8″ 8″ 1227
S2T21-S15AC 21’8″ 14’3″ 8’7″ 12’11” 7’5″ 11″ 8″ 8″ 1197
20′ S2T12-20SAC 12’4″ 7’10” 15’0″ 10’0″ 6’0″ 14″ 6″ 8″ 801
S2T15-20SAC 15’6″ 10’2″ 14’0″ 10’0″ 6’0″ 12″ 6″ 8″ 864
S2T18-20SAC 18’6″ 12’0″ 13’10” 12’11” 7’5″ 12″ 8″ 8″ 1322
S2T21-20SAC 21’8″ 14’3″ 13’7″ 12’11” 7’5″ 11″ 8″ 8″ 1293
25′ S2T12-25SAC 12’5″ 7’11” 20’1″ 10’0″ 6’0″ 16″ 6″ 10″ 1071
S2T15-25SAC 15’10” 10’6″ 19’9″ 10’0″ 6’0″ 14″ 8″ 10″ 1472
S2T18-25SAC 18’7″ 12’0″ 18’10” 12’11” 7’5″ 14″ 8″ 10″ 1593
S2T21-25SAC 21’8″ 14’3″ 18’7″ 12’11” 7’5″ 13″ 8″ 10″ 1563
30′ S2T12-30SAC 12’5″ 7’11” 24’4″ 10’0″ 6’0″ 20″ 6″ 15″ 1732
S2T15-S30AC 15’11” 10’5″ 25’0″ 10’0″ 6’0″ 17″ 8″ 15″ 2131
S2T18-S30AC 18’7″ 12’0″ 24’1″ 12″11″ 7’5″ 18″ 8″ 15″ 2268
S2T21-S30AC 21’9″ 14’3″ 23’9″ 12’11” 7’5″ 16″ 8″ 15″ 2238
35′ S2T12-35SAC 12’9″ 8’3″ 30’2″ 10’0″ 6’0″ 20″ 8″ 15″ 2163
S2T15-35SAC 15’11” 10’6″ 30’1″ 10’0″ 6’0″ 18″ 8″ 15″ 2346
S2T18-35SAC 18’7″ 12’0″ 29’1″ 12’11” 7’5″ 19″ 8″ 15″ 2483
S2T21-35SAC 21’8″ 14’3″ 28’9″ 12’11” 7’5″ 17″ 8″ 15″ 2453
2 Ton 10′ S4T10-S10AC 9’9″ 6’7″ 6’1″ 6’5″ 3’11” 11″ 6″ 8″ 532
S4T12-S10AC 12’4″ 7’10” 5’1″ 10’0″ 6’0″ 13″ 6″ 8″ 614
S4T15-S10AC 15’10” 10’6″ 4’9″ 10’0″ 6’0″ 11″ 8″ 8″ 998
S4T18-S10AC 18’7″ 12’0″ 3’10” 12’11” 7’5″ 12″ 8″ 8″ 1135
S4T21-S10AC 21’8″ 14’3″ 3’7″ 12’11” 7’5″ 11″ 8″ 8″ 1105
15′ S4T10-S15AC 9’9″ 6’7″ 11’2″ 6’5″ 3’11” 13″ 6″ 10″ 735
S4T12-S15AC 12’4″ 7’11” 10’2″ 10’0″ 6’0″ 15″ 6″ 10″ 817
S4T15-S15AC 15’10” 10’6″ 9’10” 10’0″ 6’0″ 13″ 8″ 10″ 1202
S4T18-S15AC 18’7″ 12’0″ 8’10” 12’11” 7’5″ 14″ 8″ 10″ 1355
S4T21-S15AC 21’8″ 14’3″ 8’8″ 12’11” 7’5″ 13″ 8″ 10″ 1309
20′ S4T12-20SAC 12’8″ 8’2″ 15’0″ 10’0″ 6’0″ 16″ 8″ 10″ 1146
S4T15-20SAC 15’10” 10’6″ 14’9″ 10’0″ 6’0″ 14″ 6″ 10″ 1329
S4T18-20SAC 18’7″ 12’0″ 13’10” 12’11” 7’5″ 15″ 8″ 10″ 1466
S4T21-20SAC 21’8″ 14’3″ 13’7″ 12’11” 7’5″ 13″ 8″ 10″ 1436
25′ S4T12-S25AC 12’8″ 8’3″ 20’2″ 10’0″ 6’0″ 20″ 8″ 15″ 1733
S4T15-S25AC 15’10” 10’6″ 20’0″ 10’0″ 6’0″ 17″ 8″ 15″ 1916
S4T18-S25AC 18’7″ 12’0″ 19’1″ 12’11” 7’5″ 16″ 8″ 15″ 2053
S4T21-S25AC 21’8″ 14’3″ 18’9″ 12’11” 7’5″ 18″ 8″ 15″ 2032
30′ S4T12-S30AC 12’8″ 8’3″ 25’4″ 10’0″ 6’0″ 22″ 8″ 18″ 2291
S4T15-S30AC 15’10” 10’6″ 25’1″ 10’0″ 6’0″ 19″ 8″ 18″ 2474
2T19-S30AC 19’1″ 12’2″ 24’5″ 11″4″ 7’10” 17″ 8″ 18″ 3070
2T24-S30AC 23’7″ 15’2″ 23’2″ 13’11” 9’5″ 17″ 8″ 18″ 3460
35′ S4T12-35SAC 12’9″ 8’3″ 30’4″ 10’0″ 6’0″ 23″ 8″ 18″ 2551
S4T15-35SAC 15’11” 10’6″ 30’1″ 10’0″ 6’0″ 20″ 8″ 18″ 2753
2T19-35SAC 19’1″ 12’2″ 29’5″ 11’4″ 7’10” 17″ 8″ 18″ 3349
2T24-35SAC 23’7″ 15’2″ 28’2″ 13’11” 9’5″ 17″ 8″ 18″ 3739 

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