Author Archive for: Julie Phelan

How do you make a houseboat fly?

How do you make a houseboat fly?

At Crane-Tec, we love a good challenge!  We were asked to provide a freestanding crane system that would have two 5-ton hoists and a 90 foot span.  The system was to be installed inside an existing airplane hangar!

 

Special Considerations:

  • The owner’s application required handling of large loads, some as wide as 20 feet and as long as 80 feet.
  • The building, an existing hangar, was not designed for an overhead crane.
  • The crane needed to be mounted on to a 6 1/2″ thick floor.

 

The Approach:

Our Engineer designed a freestanding runway system to bolt directly into the concrete slab.  No new crane column footers were required.  Crane-Tec’s Project Manager recommended a five ton single girder crane with two five ton hoists for safe and easy handling of the long, wide loads.  The hoists have load limiters that communicate with each other to limit the total load to 5 ton capacity.

 

The Result:

The owners turned an airplane hangar into a house boat manufacturing facility in six weeks by installing a Crane-Tec freestanding 5 ton crane system.

 

View the blueprints here.  Blueprint 1 and Blueprint 2.

 

Meeting the Needs of Our National Guard

Meeting the Needs of Our National Guard

Crane-Tec, once again, was called upon the National Guard to help them install different size and capacity cranes that can be used to repair a myriad of military vehicles.

 

Special Considerations:

The National Guard required a long span, precision handling, durable crane equipment that was extremely safe to operate.

 

Our Approach:

The Owner of the facility had well thought out plans for us to follow.  Working with the General Contractor, our Project Manager recommended a 7.5 ton single box girder crane system and a 15 ton double box girder crane system.

Both cranes were supplied with precision, slow variable speed controls.  A radio remote control feature was included for added safety.

 

The Results:

The Facility Owner received durable equipment, designed to their strict requirements.  The crane system was tested and then turned over to the customer in excellent operating condition.

 

 

An Old Facility Gets a Crane Makeover

An Old Facility Gets a Crane Makeover

Recently a Crane-Tec client offered us a challenge.  An older manufacturing facility was being repurposed to assemble and test plastic injection molding machines and they wanted to upgrade their existing 25 ton crane system.  The question was, could it be done?

 

Special Considerations:

  • Determine if the the existing 25 ton crane could be brought up to today’s standards and the client’s requirements
  • Consider the current condition of the building runway structure

Team Approach:

  • Crane-Tec’s Service Technician and Project Manager completed a building runway structure inspection and inspected the existing crane system
  • The client determined it would be more cost effective to replace the existing worn out crane
  • Crane-Tec advised realigning the crane rail and repairing the runway structure

 Results:

Crane-Tec furnished and installed a new 25 ton top running double girder crane with a five ton auxiliary hoist.  The crane was built with a variable speed bridge and trolley that is operated by radio remote controllers.  The Crane-Tec installation team realigned the crane rail and installed new runway electric.  The result?  Our client ended up with a makeover to their facility crane system in their older manufacturing building.

 

 

Long Span Cranes

Prefabricated metal buildings are increasingly moving towards widespan bays.  This requires overhead crane systems that have longer spans and heavier lifting capacities.  In addition, many considerations come in to play when designing and engineering long span crane systems in prefab buildings.  We have the knowledge and expertise to guide our clients towards the safest, most efficient solutions.

Here’s a glimpse in to one of our most recent jobs in a prefabricated metal building:

 

Special Considerations:

  • Overhead crane with span over 60 feet requires fabricated box girders
  • Long span cranes take up a large amount of the height in the building
  • Trucking and installation require special considerations and know-how

 

Our Team Approach:

  • Our team of engineers developed programs to design box girders for crane spans up to 110 feet
  • Our fabrication facility has the box girder weld tables and automated welding equipment to fabricate box girders to 110 feet
  • The Installation crew developed procedure and safety standards for handling long span box girder
  • Crane-Tec uses low head room trolley design to maximize building height

[Crane-Tec Runway Systems with spans up to 90 feet.]

 

Results

Cranetec has mastered the ability to engineer, fabricate, and install long span cranes at a very cost effective price.  We also do complete startup and testing of the installation for maximum efficiency and safety.

Check out some of the big ass cranes we’ve designed and installed!

 

Transfer Cranes Installation for Large Manufacturer

Transfer Cranes Installation for Large Manufacturer

Crane-Tec was selected by an international engine manufacturer to design, engineer, fabricate and install a 22.5 ton transfer crane system.

With our team approach, we were able to work alongside the customer to address the special challenges of this project.  The result?  A system that meets the stringent requirements of this particular industry.

Special Considerations:

  1. Very large capacity for transfer crane
  2. Independent runway and monorail structure
  3. Large runway spans and loads
  4. Low head room lift requirements required a low headroom hoist

 

Our Team Approach:

  • Crane-Tec’s team consisted of our design engineer, structural engineer and project manager.  Together, we worked with the general contractor’s team and the structural engineer for this project.
  • The Crane-Tec team designed a 22.5 ton, top running, double girder crane with a single transfer beam and eighteen, 15-ton interlocking transfer monorail beams.
  • Our structural engineers designed the freestanding runway and monorail system.

Need a drawing for your upcoming project?  We can help.

Results:

The transfer crane and monorail system was installed, weight tested and adjusted to the customers stringent requirements.

Check out the video below to see the end-result for this project.

 

 

 

Providing Solutions for Plastic Products Industry

Providing Solutions for Plastic Products Industry

Crane-Tec worked our magic again when a large international manufacturing company asked us to build and install a 15-ton top running double girder crane that will operate on an existing 10-ton capacity runway system.  Here’s what we came up with:

Special Considerations:

  • The existing runway system is designed for 10 ton.
  • The lifting height of the new 15-ton crane can be no less than the existing 10 ton crane.

Solution:

Crane-Tec’s team collected information on the existing 10-ton crane and runway system and our engineer offered two solutions:

  • A 15-ton top running double girdle crane with a low headroom trolley hoist and a 15’-0” end truck wheelbase. The wheelbase was calculated to not overload the existing 10-ton runway system.
  • A 15-ton top running double girder crane with a low headroom trolley hoist. The trolley hoist has load limiters and travel limiters to restrict the 15-ton load to the center one-third of the crane span. The rail-side one-thirds are limited to 10 ton.

[Our engineers design to your specific needs.  That’s what sets us apart!]

Results:

The customer selected solution #1.

Crane-Tec furnished, installed, and tested the new 15-ton top running double girder crane with low headroom trolley hoist and a special 15’-0” wheel base on time.

 

Precision Needed For Railroad Engines

Crane-Tec was called upon to do a project for a Railroad Engine Maintenance Facility.  Our team of experts were asked to engineer, build and install a free-standing, 20-ton crane system in an existing facility.  This new setup would be used to service railroad engines.

 

Special Considerations:

  1. The customer’s application required precise movement and positioning
  2. Adding a freestanding runway system into an older, existing building.

 

Solution:

Working with the customer and general contractor requirements, Crane-Tec engineers designed a freestanding, 20-ton crane system.  We recommended variable speed control for the bridge, trolley and hoist.  We also added a true vertical lift hoist.

[Our engineers design to your specific needs.  That’s what sets us apart!]

Result:

Crane-Tec engineered, built, installed, and tested the complete 20-ton top running double girder, heavy duty, radio remote controlled crane and free standing runway system.

Below is a video with images for this recent project.  Enjoy!

Integrating Safety With An Overhead Crane System

Integrating Safety With An Overhead Crane System

When a large aviation client asked Crane-Tec to build an overhead crane system, the safety of their employees was paramount to the design.

34 percent of injuries and many work-related deaths are the result of a fall from height.

We understood that taking a preventative stance to protecting employees from injury or death, and to remain compliant with OSHA standards, was an important element to this job, so we sought out an industry leader to help with the design.

SOLUTION

Crane-tec turned to Rigid Lifelines, a company at the forefront of fall prevention safety, to help incorporate a Rigid Track fall prevention system into the overhead crane design.

We engineered the safety equipment right into the monorail system that we designed and then built all of the structural steel and the system to support everything.

RESULT

  • The installed overhead crane system consisted of a 20 metric ton crane with 15 ton monorail spurs. Fall protection rail was installed on each of the 18 monorail spurs and the bridge crane
  • Each 58 foot long monorail spur had its own fall protection rail designed to support two people
  • On each system there were two, self locking trolleys with retractable lanyards

The purpose of having the fall protection secured into the structural support of the crane and monorail systems is to protect the personnel when they’re working on the large engines.


Read more about workplace safety and rigid track systems.


Check back with us next month.

Next month we’ll highlight this entire project and showcase the cranes and hoists provided by our partners at EMH.  Stay tuned!

 

Down with the OLD, Up with the NEW

 

 

 

The Challenge:

Remove two old 10 Ton Top running double girder cranes and replace them with two new 10 ton top running single girder cranes.

 

 

 

 

 

 

Special Considerations:

  • The New single girder cranes needed to have the same amount of lift as the old double girder cranes
  • New cranes could not have any painted surfaces that could chip or flake (Note: clean room environment)
  • Precise hook spotting required for accurate hood positioning

 

Our Team Approach:

  • Our team, armed with existing building dimensions, designed a stooled up single girder crane with a close headroom hoist to meet the lift requirements.
  • The hook and lower block of the hoist were disassembled, sand blasted, and reassembled.  The running surfaces on the bridge beam were kept bare metal.
  • A four light state of the art hook positioning system was installed on the hoist to indicate the exact lifting point

Result:
The old cranes were removed and the new cranes installed with little to no interference to the customer production time.

 

How do you make a frog

The Challenge:

To provide a building supported crane system with two 25 Ton capacity and one 10 Ton capacity long span heavy duty cranes.  The crane system was to be designed into the metal building structure of a regional railroad manufacturer for their “Frog” manufacturing.  Frogs are railroad exchanges that divert trains from one line to another.

Special Considerations:

Owner application required heavy duty high speed cranes.  Independent tie back runway systems were designed to maximize the strength of the pre-engineered metal building.

Our Team Approach:

Working with the owner and the General Contractor we were able to design a building that supported the loads of 3 heavy duty high speed bridge cranes.  We installed two 25 ton cranes, each with a 5 ton auxilliary hoist, and a 10 ton crane.  These allowed the manufacturer to have three work areas which stream-lined their manufacturing.

Results:

Crane Tec supplied a turn-key crane system on time and within budget