Freestanding Workstation Bridge Cranes
- Capacities: 250 to 4000 lbs
- Bridge Lengths, overall: up to 40’
- Runway Spans: up to 40’
- 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 workstation bridge cranes for non-seismic applications
In addition to our custom engineered systems, we make pre-engineered systems that include everything but the hoist and anchor bolts. All Spanco systems meet or exceed ANSI/ASME B30.11 and ANSI/MMA MH27.2 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 Spanco Freestanding Workstation Bridge Cranes to cover their entire machining center—eliminating the need to transfer loads from one manipulator to another and drastically improving production time, worker safety, and overall efficiency.
- Options and Components
- Telescoping Bridges: Providing extended crane reach, telescoping bridges allow you to place parts easily 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 2,000 pounds.
- Mixed Capacity Systems: Leverage system capability by specifying heavier capacity runways with multiple smaller capacity bridges. For example, a 2,000-pound capacity runway can run two 1,000-pound bridges or four 500-pound bridges.
- Tractor Drives: Motorize the bridge or hoist trolley on a Spanco Workstation Bridge Crane. Frequently used for loads of 1,000-pounds or more, tractor drives are 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 bridges, which prevent the bridges from overloading the runway’s capacity.
- Intermediate Bumpers: Through-bolted end stops installed at runway support centers prevent more than one bridge crane from operating within a set of support centers.
- Double-Girder Nested Trolleys (Crab Trolleys): Increasing the available lift height for low headroom applications, double-girder nested trolleys keep the hoist nested between dual girders, which form a box-shaped assembly that rises above a parallel set of connected bridges.
- Box Track: Festooning cables and 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.
- 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 maximum 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:
- Freestanding Systems: Flush-mount hangers; allow lateral and longitudinal adjustments.
- Ceiling-Mounted Systems: Either flush mounted or drop-rod mounted with hanger rods. Includes clamps.
- 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 strap for festoon vacuum hose on vacuum lifters.
*End trucks and hoist 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 resistant” applications are available.
- Case Studies
- Freestanding Workstation Bridge Cranes Provide Control over Manufacturing Process
- Fully Customized Bridge Crane Enables Dynamic Robot Manipulation
- Bridge Cranes Provide Total Coverage for Bruno’s Manufacturing Facility
- Bridge Cranes Provide High Capacity Lift and Extended Coverage for Hydraulics Facility
- Spanco Cranes Improve the Production Process at Aeronautics Company
- Workstation Bridge Crane Provides Ergonomic Solution for Metal Fabrication Facility
Spanco, Inc. warrants its products to be free from defects in material and workmanship as follows:
- Manual Systems & Equipment: Ten Years
- Motorized Systems & Equipment: One Year
- Paint & Finishes for Non-Aluminum Components: Two Years
Ten-Year Warranty Coverage:
- Defects in equipment material and workmanship of manual systems and equipment
- Wearable parts (workstation bridge crane end trucks and hoist trolley wheels only)
Spanco, Inc. warrants its manual workstation bridge crane, jib crane, 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.
One-Year Warranty Coverage:
- Defects in equipment material and workmanship of motorized systems and equipment
Spanco, Inc. warrants motorized equipment to be free from defects in material and workmanship for a period of one (1) year or 2,000 hours, commencing on the date of shipment to the first retail purchaser.
Two-Year Warranty Coverage:
- Paint coatings and finishes for non-aluminum components
Spanco, Inc. warrants its paint and finishes for a period of two (2) years. Warranty claims related to coatings must be accompanied by documentation of the product’s application and environmental conditions from time of delivery to time of claim.
WARRANTY TERMS & CONDITIONS
All warranty claims must be approved by Spanco before any work is performed. Spanco’s obligation under this warranty is limited to the replacement or repair of Spanco products at the factory or separate location approved by Spanco. Other than the above mentioned warranty, Spanco will not honor any other warranties—whether expressed, implied, or statutory—and disclaims any warranties of merchantability or fitness for a particular purpose. Spanco has the right to reject any warranty claim due to harsh and/or inappropriate environmental conditions.
Spanco Is Not Liable for:
- Indirect, incidental, or consequential damages including lost profits, operating costs, loss of production, or travel expenses
- Components or accessories not manufactured by Spanco
- Defective equipment or system failure caused by misuse, negligence, and improper installation or maintenance
- Equipment that has been used in excess of its rated capacity or beyond its service factors
- Equipment that has been altered without Spanco’s written authorization
- Damage incurred by freight carriers
- Any loss, injury, or damage to persons or property resulting from failure or defective operation of material or equipment
- Written notice of any claimed system defect must be given to Spanco within ninety (90) days of shipment.
- All requests for reimbursement must be accompanied by proper documentation.
- Reimbursement is provided in the form of a credit unless otherwise approved by Spanco management.
- Reimbursement for labor will be provided at a maximum rate of $75 per hour.
- All reimbursement is subject to approval by Spanco management.
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.
All welding performed during the manufacturing of Spanco cranes meets the following American Welding Society’s (AWS) standards: D1.2 for aluminum and D1.1 for steel.
Spanco is officially certified as an AWS Certified Welding Fabricator (CWF). This certification 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.
All aluminum used in the manufacturing of Spanco cranes meet ASTM International specification ASTM B308 for 6061-T6 aluminum.
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 Grade B
Structural Square and Rectangular Steel Tubing: ASTM A-500 Grade B
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.
The following guidelines for deflection and stress are followed by Spanco engineers during the crane design process:
- Workstation Bridge Cranes: All models are designed to approximately L/450
- Jib Cranes: Freestanding (100, 101, and 102 Series), Mast Style (200 and 201 Series), Wall-Mounted Cantilever (300 Series), Articulating (400, 401, and 402 Series), and Foundationless models (600 and 605 Series) are designed to approximately L/150; Wall-Mounted Bracket (301 Series) models are designed to approximately L/600 at midspan
- Workstation Jib Cranes: Wall-Mounted (WC Series) models are designed to approximately L/225; Freestanding (FR Series) models are designed to approximately L/150
- Gantry Cranes: All steel series models are designed to approximately L/600; Aluminum models are designed to approximately L/450
Spanco is an ISO 9001-2008 Registered corporation. This means that Spanco cranes are manufactured to standards ensuring safety, reliability, and the highest quality. Spanco’s ISO designation also allows for continuous improvement based on customer feedback.
- 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 see the High-Impact Lifting Systems Protocol and 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 splice joints more than 12” from the runway support centers when aligning plain track runways.
- Do not cantilever the runway track ends more than 12” beyond the runway support centers (not including festoon storage area) on plain track runways.
- 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.
- High-Impact Lifting Systems Protocol
Applications involving vacuums, magnets, or other high-impact lifters are considered severe usage (continuous service) per the Monorail Manufacturers Association (MMA) and may require special design considerations. See below.
- Magnet lifting systems require the system capacity to be derated by 50%.
- Vacuum lifting systems that use an electric hoist never require the capacity to be derated.
- Vacuum lifting systems that use vacuum hose trolleys require the system to be derated by 50% if the system has any of the following attributes. Please contact Spanco with any questions about the system attributes below.
- The operational time (system is in motion) is consistently greater than 50% of the work period and the lifted load is consistently greater than 50% of the rated capacity.
- The equipment performs 20 to 40 lifts per hour.
- The average lift is 15 feet or more.
NOTE: Applications that exceed 40 lifts per hour can be problematic due to unusually high-cycle rates. If an application exceeds 40 lifts per hour, please provide as much information as possible about the lifting process and the item(s) being lifted.
Vacuum lifting systems that use vacuum hose trolleys and do not have any of the system attributes listed above do not require the system capacity to be derated.
- Before Each Use Workstation Bridge Crane Inspection Checklist
- Freestanding Workstation Bridge Cranes User Manual
- Literature Request Form
- Periodic Workstation Bridge Crane Inspection Checklist
- Product Line Card
- Spanco Product Warranty
- Workstation Bridge Cranes Brochure
- Freestanding Workstation Bridge Crane Bid Spec
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