Thrifty Crane Sketch

Model A48-12AC

Thrifty Aluminum 2-Ton Gantry Crane
12′ Span, 7′ 0″ – 9′ 6″ Adjustable Height

Aluminum Construction
✓ 2-Ton (4,000 pound) capacity (A)
✓ 12′ Span (B)
✓ 10′ 10″ Clear Span (D)
✓ 7′ 0″ – 9′ 6″ Adjustable Height (C)
✓ 5′ 4″ Tread (E)
✓ 6″ Caster Diameter (F)
✓ 12″ I-Beam Depth (G)
✓ 346 Pounds Net Weight

Designed and manufactured in the United States
Completely portable
Easy to assemble, disassemble, transport, and store
Lightweight yet strong
Designed to roll under load

Most orders ship in 3 to 5 days.


Product Details

Model A48-12AC

Key Features

Lightweight, Adjustable, and Portable

The lightweight and corrosion-resistant Thrifty Aluminum 2-ton adjustable-height gantry crane is one of our most popular product lines. It offers the greatest clear span (D) of any Wallace gantry crane and the aluminum design makes it an ideal combination of high lifting and reduced weight. This Thrifty comes with adjustable heights (C). It is easily assembled and disassembled for convenient portability.

  • The Thrifty is built using our patented pinned-joint design resulting in a longer-lasting, better-fitting, more flexible crane that is quick and easy to assemble and disassemble.
  • Strong rectangular posts and frames.
  • Gussets for added strength eliminate the need for brace legs which allows for a greater clear span
  • The exclusive Wallace I-beam support system aligns off-center loads to avoid distortion of the crane and trolley.
  • Casters are equipped with a 4-position swivel lock. When locked 90 degrees with each other, they position the crane more firmly than a brake.
  • Adjustable legs permit crane height adjustments in 6″ increments using spring-loaded bolts. You can raise the height of your crane so it goes over materials and equipment, lower it under low ceilings and doorways, or set legs at different heights when floors or terrains are uneven. It’s ideal for truck loading or from a dock to a floor or ground level to a mezzanine.
  • Completely portable – many aluminum models can be hand-carried.
  • Designed to roll under load.

Model A48-12AC

Dimensional Drawing

Wallace Thrifty Aluminum Adj-Ht 2-Ton Gantry Crane | 12' Span 7'0"-9'6" Ht High (A48-12AC) Dimensional Diagram

Print / download A48-12AC dimensional drawing (PDF).

View I-Beam Flange Width Chart for Wallace Gantries.

Model A48-12AC

Parts List

ITEM NO. PART DESCRIPTION
1 POST
2 FRAME ASSEMBLY — LEFT
3 FRAME ASSEMBLY — RIGHT
4 PIN — HEIGHT ADJUSTMENT
5 SPRING — HEIGHT ADJUSTMENT
6 SPRING — PIN
7 UPPER BOLT PLATE
8 LOWER BOLT PLATE
9 STABILIZER PLATE
10 CAP SCREW — CASTER
11 LOCK WASHER (INTERNAL TOOTH) CASTER
12 HEX NUT — CASTER
13 CASTER
14 CASTER SWIVEL LOCK — (ATTACHED)
15 CAP SCREW — LOWER BOLT PLATE
16 LOCK WASHER — SPLIT
17 HEX NUT — LOWER  BOLT PLATE
18 CAP SCREW — UPPER BOLT PLATE
19 LOCK WASHER — SPLIT
20 HEX NUT — UPPER BOLT PLATE
21 CAP SCREW
22 BEVEL WASHER
23 LOCK WASHER
24 HEX NUT
25 I-BEAM

Note: There are alternate v-groove casters available for this crane.

Print / download a copy of the A48-12AC parts list and parts location diagram (PDF).

Model A48-12AC

Parts Location Diagram

Round-Tube Tri-Adjustable Caster Frame Assembly Parts Location Diagram | Wallace Cranes

Wallace Thrifty Adjustable-Height Gantry Crane Parts Location Diagram


Print / download a copy of the parts list and parts location diagram (PDF).

Model A48-12AC

Optional Accessories

Sample Trolleys and Hoists Available for Hight-Adjustable Thrifty Gantry Cranes | www.wallacecranes.com

Sample Trolleys and Hoists Available for Wallace Thrifty Gantry Cranes


Available accessories include manual and electric trolleys and hoists as well as festooning kits to keep hoist, trolley, and power drive system cords up and out of the way. Cable ratchet kits to speed height adjustments, and adjust-a-span kits that allow the frame and post assembly to slide along the I-beam for quick span adjustments.

Options for track mounting with V-groove casters and motorizing cranes are also available.

Model A48-12AC

Assembly and Disassembly Instructions

Cautions

  1. Read and understand instructions before using this gantry.
  2. Inspect gantry thoroughly before using. See the Aluminum/Steel Thrifty Frame Assembly Instructions (Forms 386 and 387) Parts List for damaged or missing parts.
  3. Do not lift more than the crane’s rated capacity.
  4. Center hoist over the load.
  5. Do not allow the load to swing or roll against any supporting members.
  6. When moving the gantry under load, push on the gantry, not the load. Be certain that the rolling surface is hard, level, clean, and smooth.
  7. Do not move the gantry over 50 feet per minute (1/2 m.p.h.).
  8. Not to be used for lifting or supporting humans.

Before You Begin

  1. Assemble a work crew of no less than three. One will operate the lifting crane and the others will perform the assembly. You may need more to lift the higher-capacity legs.
  2. Place parts on a flat surface, preferably on cardboard to keep small parts clean and organized.
  3. Clear an open area at least as large as 2 X the leg length and wider than the beam.
  4. For assembly, select an area with a safe lifting means. For the easiest and safest assembly, use an area with two overhead hoists (for example an overhead crane) to raise the I beam when required.
  5. Get a crane or lifting device capable of lifting the entire weight of the completed crane. The lifting device must have sufficient height for the posts to be raised clear of the frames.

Print / download a PDF of the combined parts list (Form 387) and detailed, step-by-step Aluminum/Steel Thrifty Frame Assembly Instructions (Form 386).

Model A48-12AC

Inspection Checklist (Form 504)

Instructions include:

  • What to check for.
  • How often to check.
  • Frequent Inspection Checklist.
  • Periodic Inspection Checklist.

View detailed Gantry Crane Inspection Checklist (Form 504).

Print / download a PDF copy of the checklist.

If you have questions or need assistance, please contact us.

Disclaimer

Please note this checklist was derived from company proprietary materials and (3) source documents including ANSI B30.17CMAA Specification #74 Revised 1987, and OSHA 1910.179. As excerpts, the short form Wallace documents are intended to serve as general guidelines and are not to be considered the sole source when performing routine maintenance and inspection tasks.

Model A48-12AC

Operating, Adjustment, and Inspection Instructions (Form 1004)

Instructions include:

  • Inspecting Crane Before Moving and/or Each Day’s Use
  • Positioning of Crane to Handle Loads
  • Positioning of Casters

View detailed Thrifty Operating, Adjustment, and Inspection Instructions (Form 1004).

Print / download a PDF copy of the instructions.

Model A48-12AC

Warranty and Disclaimer

Wallace product warranty and errors and omissions disclaimers can be found below.

They are also in the About section of this website and on the main Thrifty Aluminum Adjustable-Height 1 and 2-Ton Gantry Cranes page.

Model A48-12AC

Engineering Specification

Gantry end frames shall be of aluminum rectangular tube construction manufactured to Wallace Cranes standards including, but not limited to, the following:

  • Gantry shall be adjustable in height.
  • Gantry shall have fixed tread.
  • The aluminum alloy I-beam shall be American Standard and have a design deflection of no greater than l/450th of the span.
  • The telescoping posts shall be adjustable in 6” increments when adjusting height. The posts shall have internal reinforcement as well as gussets welded to top plates.
  • The main frames shall have a spring-loaded load-adjusting pin for adjusting/maintaining the height of the crane. Frames will be manufactured with custom-made channel for better fit with bolt and plate upon assembly.
  • Gantry shall be equipped with four, 360-degree rotating, non-marking phenolic resin casters with 4-position swivel locks, at 90 degrees, to provide easy steering of crane by locking “lead” casters only, or to allow positioning of the crane more firmly than a brake by locking all four casters 90 degrees to each other. Casters shall be 6” in diameter.
  • The model number to be provided shall be tested in accordance with Wallace Cranes specifications (A specific unit shipped is not tested; unless a Certificate of Test is ordered [additional charge applies]).
  • Optional cable ratchet hoist kits for height adjustment are available for an additional charge. Please specify when ordering.
  • Optional span adjustment kits on cranes up to 15’ I-beam spans are available for an additional charge. Must specify when ordering.
  • Gantry is manufactured in accordance with our interpretation of ANSI B30.17 and U.S. OSHA, (Section 1910.179, revised January 1976), regulations at the time of manufacture.

Print / download a PDF version of the specification.

Want Help?

We have experts on hand to answer all your questions (1-800-553-5438).

Related Products

Wallace offers other Thrifty steel adjustable-height models as well as steel, adjustable-height Tri-Adjustables in 1 to 10-ton capacities, and Hybrid (steel frame aluminum I-beam) adjustable-height models in 1 – 5 capacities. See all our gantry options below.

Tri-Adjustable Round Tube Gantry Crane Dimensional Sketch | Wallace Cranes

Tri-Adjustable Sketch