Freestanding Workstation Bridge Crane

Overview

Capacities: 250 to 4000 lbs
Bridge Lengths, overall: up to 40’
Runway Spans: up to 45’
Height — Floor-to-Trolley Clevis: 10’, 12’, or 14’ heights are standard

Spanco Freestanding Workstation Bridge Cranes provide highly effective, cost efficient lifting and moving solutions, especially when:

  • You need overhead crane coverage for a large area––up to 40-feet wide and with unlimited length. With interconnected parallel systems, you can cover your entire building.
  • You rent or lease your building. Our bolt-together freestanding systems can be readily relocated, either within your plant or in an entirely new location.
  • You want to be able to easily expand or modify your overhead crane system.
  • Your roof support is inadequate for a Spanco ceiling-mounted bridge crane. Typically, a standard six-inch thick reinforced concrete floor is all that’s needed for our freestanding bridge cranes.

In addition to our custom engineered systems, we make pre-engineered kits that include everything but the hoist and anchor bolts. All Spanco systems meet or exceed ANSI/ASME B30.11 standards for underhung cranes and monorails. 

Looking to streamline your manufacturing process?

Spanco Freestanding Workstation Bridge Cranes are the perfect ergonomic solution for extending lifting coverage and providing full access of movement. Our Freestanding Workstation Bridge Cranes can replace multiple cranes with one fluid system for improved efficiency and productivity.

Check out this case study about a leading hydraulics facility that replaced dozens of manipulators with freestanding workstation bridge cranes from Spanco to cover their entire machining center—totally eliminating the need to transfer loads from one manipulator to another and drastically improving production time, worker safety, and overall efficiency. Read the case study here.

Options for Spanco Freestanding Workstation Bridge Cranes

  • Telescoping Bridges: Provide extended crane reach, allowing you to easily place parts into machinery or into a neighboring workstation. Telescopic bridge cranes also enable you to reach beyond a support column or under a mezzanine. Anti-kick-up wheels keep the telescoping bridge’s movement smooth, even when carrying up to 2000 pounds.
  • Mixed Capacity Systems: Leverage system capability by specifying heavier capacity runways with multiple smaller capacity bridges. For example, a 2000-pound capacity runway can run two 1000-pound crane bridges or four 500-pound crane bridges.
  • Tractor Drives: Motorize the bridge or hoist trolley on a Spanco Workstation Bridge Crane. Frequently used for loads of 1000-pounds or more. Tractor drives are also very helpful when transporting material into hard-to-reach areas where manual movement is difficult due to machinery, work tables, or other obstacles.
  • Bridge Buffers: The buffers roll in the runway tracks between two crane bridges; keep the bridges apart so as not to overload the runway’s capacity.
  • Intermediate Crane End Stops: Through-bolted stops installed at runway support centers to prevent more than one bridge crane from operating within a set of support centers.
  • Double-Girder Nested Trolleys (Crab Trolleys): Increase the available lift height for low headroom applications. The hoist is nested between dual girders that form a box-shaped assembly that rises above a parallel set of connected bridges.
  • Box Track: Festooning cables/hoses run in their own box track, typically positioned above the runway or bridge.
  • Duct-O-Bar Electrical Connections: An alternative to festooning cable is the Duct-O-Bar 4-conductor electrical solid bar and brushes in conduit, which runs adjacent to enclosed track on runways or bridges.

Components

End Stop Bumper: Resilient rubber bumpers increase impact resistance and are through-bolted to enclosed track.

Cable/Hose Trolley: Conveys flat cable power supply or round air hose. Four wheels ensure easy rolling. Pivoting clevis provides swiveling action for air hose. Standard trolley includes 3/8-inch max. air hose.

Festoon Section: Through-bolted on end of runway to allow stack-up of cable/hose trolleys. If festooning is a potential obstruction, use the Box Track and Duct-O-Bar alternatives outlined under the Bridge Crane Options.

End Truck: Smooth running connection between enclosed track bridge crane and runway tracks. Horizontal steel guide rollers on either end of the truck eliminate "crabbing action.”*

Hoist Trolley: Fabricated from precision-cut steel plate.*

Cable/Hose Clamps: Fitted at one end of runway and bridge. Flat cable 4 wire #14 AWG standard; 3/8-inch air hose optional.

Hanger Assemblies:

  • Ceiling-Mounted Systems: Either flush type or drop type with hanger rods. Includes clamps.
  • Freestanding Systems: Flush type hangers; allow lateral and longitudinal adjustments.

Flat Cable Festooning Systems (4 wires #14 AWG): Supplied with all bridge crane systems; optional air hose systems available for various sizes. Festoon loops are 18 inches for bridges and 36 inches for runways.

Vacuum Hose Trolley: Free-moving trolleys with anti-kick-up rollers and Velcro straps to festoon vacuum hose for vacuum lifters.

*End trucks and hoist trolleys are: Trucks and trolleys are designed to ANSI B30.11 specifications for underhung bridge cranes. Both have large diameter, polyamide wheels equipped with anti-friction ball bearings. Steel wheels, zinc chromate plated finish, or bronze wheels with bronze guide rollers for “spark proof” applications are available.

Warranty

Products covered under the Ten-Year Warranty:

  • Manual Steel Freestanding, Ceiling Mounted Workstation Bridge Cranes, and Monorails
  • Manual Aluminum (Alu-Track®) Workstation Bridge Cranes and Monorails
  • Manual Jib Cranes (I-Beam, Articulating, and Workstation Jib Cranes)
  • Manual Gantry Cranes and Tripods

What the Ten-Year Warranty covers:

  • Defects in equipment material and workmanship
  • Wearable parts (workstation bridge crane end trucks and hoist trolley wheels only)

Spanco, Inc. warrants its manual workstation bridge crane products, jib crane products, and gantry crane products to be free from defects in material and workmanship for a period of ten (10) years or 20,000 hours, commencing on the date of shipment to the first retail purchaser. This warranty extends to non-wearable parts only, with the exception of the wheels supplied on manually operated workstation end trucks and hoist trolleys. This warranty does not cover defective equipment or system failure caused by misuse, negligence, improper installation or maintenance, or equipment that has been used in excess of its rated capacity or beyond its service factors. It does not apply to equipment that has been altered without Spanco’s written authorization.

Written notice of any claimed system defect must be given to Spanco within thirty days of discovery. Spanco's obligation under this warranty is limited to the replacement or repair of Spanco’s products at the factory or separate location approved by Spanco. The purchaser is responsible for all freight and transportation costs relating to equipment repair or replacement. Other than the abovementioned warranty, Spanco will not honor any other warranties—whether express, implied, or statutory—and disclaims any warranties of merchantability or fitness for a particular purpose. Spanco is not liable—under any circumstances—for any indirect, incidental, or consequential damages including but not limited to lost profits, increased operating costs, or loss of production.

This warranty does not extend to components or accessories not manufactured by Spanco. The purchaser’s remedy for such components and accessories will be determined by the terms and conditions of any the warranty provided by the manufacturer of such components and accessories.

NOTE: All motorized Spanco products come with a One-Year Warranty on drive components.

Standards

General Design Standards:
Spanco cranes are designed in conformance with the following applicable standards:

  • Workstation Bridge Cranes: AISC Steel Construction Manual, OSHA 1910.179, ANSI B30.11, AWS D1.1/D1.6, and MMA MH27.2
  • Gantry Cranes: AISC Steel Construction Manual, OSHA 1910.179, ANSI B30.11, AWS D1.1/D1.2/D1.6, and CMAA 74
  • Jib Cranes: AISC Steel Construction Manual, OSHA 1910.179, ANSI B30.11, AWS D1.1/D1.6, and CMAA 74

All Spanco cranes have a design factor of 15% of the allowable capacity for the weight of the hoist and 25% for impact.

Fabrication Standards:
All welding performed during the manufacturing of Spanco cranes meets the American Welding Society’s (AWS) D1.1/D1.2/D1.6 Standards.

Spanco, Inc. is officially certified as an AWS Certified Welding Fabricator (CWF). This means that not only are all welders AWS Certified, but all processes and procedures adhere to AWS CWF requirements. Examples of requirements include annual calibration of all welding machines and Level 2 visual inspections on all load-bearing components.

Material Standards:
All steel used in the manufacturing of Spanco cranes meets the following applicable ASTM International specifications:

Structural Steel Shapes: ASTM A-36
Structural Steel Pipes: ASTM A-53
Structural Steel Tubing: ASTM A-500

Steel plate and round bar used in Spanco cranes have minimum yield strengths of 36 KSI.

Surface Preparation & Painting Procedures:
Spanco adheres to the standards of the Society for Protective Coatings (SSPC) for all product surface preparation. Prior to painting, all Spanco crane components are deburred and descaled using power tools equipped with sanding discs and wire wheels. Components are then washed utilizing a high-pressure/high temperature biodegradable degreaser solution. Parts are wiped clean and allowed to dry before the painting process. During painting, all components surfaces are coated with a quick drying, semi-gloss enamel, applied to a minimum dry-film thickness of 2 to 3 mils. A finishing coat is applied with a hot, airless, electrostatic spray paint system. Painted components are cured at air temperature.

Deflection Guidelines:
The following guidelines for deflection and stress are followed by Spanco engineers during the crane design process:

  • Workstation Bridge Cranes: All models designed to L/450
  • Jib Cranes: Wall-Mounted Cantilever (300 Series) models designed to L/150, Freestanding (100, 101, and 102 Series), Mast Style (200 Series), and Wall-Mounted Bracket (301 Series) models design to L/450
  • Workstation Jib Cranes: Wall-Mounted (WC Series) models designed to L/225, Freestanding (FR Series) models designed to L/150
  • Gantry Cranes: All steel series models to L/600, Aluminum models to L/450

Quality Standards:
Spanco, Inc. is an ISO 9001-2008 Registered corporation. This means that Spanco cranes are manufactured to standards ensuring safety, reliability, and the highest quality. Spanco, Inc.’s ISO designation also allows for continuous improvement based on customer feedback.

Warnings

  • Inspect entire system annually or more frequently as defined by OSHA 1910.179. Inspection must be performed by a qualified person. Failure to do so may cause serious injury or death.
  • This equipment, used as a crane, is not in any way designed for lifting, supporting, or transporting humans. Failure to follow specified load limitations can result in serious bodily injury or death.
  • Applications involving vacuums, magnets, or other high impact lifters are considered severe usage (continuous service) and require special design considerations. Please contact factory for special design pricing.
  • To prevent trolley/end truck running out of the track, do not operate crane without end stop bolts firmly secured in place on each end of the bridge crane track and on each end of each runway track.
  • Runway end stops must be aligned longitudinally so bridge hits end stops simultaneously.
  • Do not locate truss splice joints more than 48” from the runway support centers when aligning trussed track runways.
  • Do not cantilever the trussed runway ends more than 48” beyond the runway support centers (not including festoon storage area).
  • Do not impact end stops at speed. Only impact end stops with caution.
  • Never use end stops for repetitive bridge impacts.
  • Do not skew bridge in runways.
  • Do not operate hoist or crane if cotter pins are not in place and properly bent over on both sides of hoist trolley. Check regularly that the cotter pins are in place and securing the hoist on the hoist trolley.

Bid Specifications

Freestanding Workstation Steel Bridge Crane (Word.docx format) (PDF format)

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