There’s a reason for the fabricating in Riggs Machine & Fabricating. Here’s a perfect example. A client has an older machinery pedestal in very poor condition and needs a new assembly. There are, of course, no design drawings for the item, but luckily we can bring it to our shop.
First we make hand sketches of the unit. We review the original design to see if there were any structural defects that should be improved or any new features that the client would like to have implemented in the current design.
Next, these sketches are converted to CAD drawings and then 3D models are created for fit-up and testing. It’s much faster (and cheaper) to test a new design in 3D than it is after cutting 1/2” thick plates. When we are satisfied with the design, the files are sent out to have plates cut.
This is what we get back from the waterjet cutters (Swift Manufacturing), nice pallet of loose parts. Now fabrication begins. If the designers did their work properly, the welders job should go smoothly.
And here we have the final assembly. From hand sketches to CAD to 3D models to cut parts to fabrication in less time than it takes some companies to return your call.
Used when creating a Butt Weld between two sections of train rail, this shear takes a lot of abuse. At the same time, it must follow very tight tolerances to maintain the profile of the rail (especially when a high speed train is running across it).
A butt weld is created in the field using a mobile electric flash-butt welder. The two sections are joined and electricity is applied to the rail ends. The flash-butt welder squeezes the sections together at very high pressure, permanently joining them, but this also creates a seam at the joint with a segment of slag.
The RAIL WELDING SHEAR is clamped onto the rail and slid along the rail, by the mobile welder, cutting off the hot slag leaving only a small remainder that will be later ground smooth.
These shears are precision cut out of Nitronic 60 – a high strength metal known for it’s wear resistance – with a wire EDM machine. The EDM unit cuts parts slower, but with more precision than a waterjet or laser cutter.
The final grooves are added via a CNC and the units are then inspected. A hard-surface weld is added and machined to create a precision cutting edge. The parts are assembled to complete the rail welding shear.
These are ready for the rail and making the travels of passengers and goods go smoother and safer.
This video shows a portable flash-butt welder in use. Notice the Rail Shear clamped on the rail before the unit is lowered on the section.
We’d like to welcome Gregg Nichols to our staff. Gregg has a combined 28 years in Industrial Distribution & Manufacturing Operations and Sales.
His prior experience includes 5 years with Perfection Rubber (operations manager and sales), 18 years with MSC / Dolin Supply (team leader and outside sales) and 4 years with American producers (outside and industrial sales)
The business segments he previously focused on included:
Gregg’s areas of expertise include:
Hydraulic Hoses, Tubes and Fittings
Metal working – Machining – Hole Making
Material Handling (lifting and rigging)
Pipes, Valves & Fittings
Gregg has jumped right in and got off to a strong start. His outgoing personality and years of knowledge have been a perfect fit here at Riggs. Call him for a visit to your facility and see why he’s an invaluable asset to our team!
Being located in Ashland KY gives us access to many types of major industries including oil and petroleum, chemical, coal, power production, rail, auto manufacturing, mining equipment, steel and other metal production.
We also cater to a variety of small businesses with their own unique areas of specialties such as large machinery repair (i.e. dozer and tractor), environmental services, and public and municipal agencies.
So what type of services do we provide to our clients? We are a full service machining and fabricating facility. We can perform everything from basic repairs to fabrication of new structures. From turning mill rolls to custom shaft machining, from designing and building platforms to providing phonographic finished spectacle blinds. We even rebuild gearboxes and crane wheel drive units.
Riggs Machine is also considered a hot job shop, meaning we are available 24-7 if the need arises. Many of our clients run non-stop and can’t let a part failure stop production, the flow of material to their customers, or possibly the power to your home!
We’ve even designed a few specialty items like our tank top drop-in manway guards. These have proven to be very popular in petroleum refineries.
We’ve also worked with several companies on large projects to help refine and bring to life new equipment that has helped them gain an advantage in their respective fields.
Whether you need a custom shaft for your facility, a new walkway to keep your employees safe, or a miner that will move mountains, Riggs Machine & Fabricating has the experience and knowledge to exceed your expectations.
Used during repairs and outages, this simple looking device becomes a necessity. The Tube Plug is hammered or welded into the open section of pipes in boilers and heat exchangers. They plug the end of the pipe to either stop the flow of steam or coolant. If the plug’s seal is not tight the coolant can seep into the material and contaminate it.
What makes this seemingly basic item so important are a few factors. First, its fit must be right. Sure they are tapered, but they must fit without damaging the existing pipe or sliding too far in. Also, the material specifications for Tube Plugs can vary greatly. While some plugs can be made out a carbon steel like 1018, other plugs must match the existing pipe section (i.e. A350 with more carbon content) or even stainless steel, nickle or other metals. If the wrong type of metal is used, it could lead to corrosion, rust, leaks or a possible reaction with existing materials in the system.
Even the machining isn’t always as simple as it may seem. Bar stock in not always available in a size close to what the job requires or the material type needed is only available as plate. In that case, a plug larger than the finished size would be cut from the plate and then turned turn by hand on a lathe. Time consuming, yes, but necessary for a professional fit.
At Riggs Machine & Fabricating, we not only have the experience, but we ask the questions to make sure the job is done right, the first time. Don’t trust those supposed simple jobs to just any shop. Call Riggs first for the dependability and quality your facility demands.
Industrial platforms and walkways typically use one of two types of handrail – round bar or angle.
But recently we’ve seen the addition of a lower handrail, which is more ergonomic and comfortable.
This additional handrail makes transversing stairs much safer. There are no breaks or pinch points as you move your hand along the rail. The placement is more convenient and it just has a better feel to it.
Even better, this handrail can be added to existing walkways and platforms. If you have a heavily trafficked area or a thoroughfare on which you’d like to beef up the safety – rather than replace the entire structure, consider this simple (and cost effective) addition. Give Riggs a call, we’re here to help.
The Auger Conveyor uses a rotating helical screw blade to move materials along its length. This unit moves abrasive materials from hopper to hopper then to bagging.
Notice how the abrasive material has worn down the blades. Also, material is sticking to the untreated blades. Material slides over the smaller, worn out blades making the conveyor ineffective. Jobs take longer and costs rise quickly.
This new unit has Hardfacing Wire (Lincore 55) welded to the blades to reinforce them and add durability. This surface resists sliding wear and mild abrasion. These new blades will have a longer service life.
It is with heavy hearts we say goodbye to a great friend and colleague, Randall Peterman. Randall passed away on August 29 after a short illness. It has taken everyone at Riggs by surprise. His humor and joyfulness will be missed.
Randall started with us in 2000 cleaning and sweeping around the shop, then later moved on as a driver. He recently became a sales rep for Riggs Machine and used his outgoing personality to gain the trust of customers where other sales reps might falter. His open nature and ease of conversation made our clients comfortable with him.
Randall was a unique individual and had his own ways of doing things. He was not afraid of criticism and would let you know where you stood. His quick wit and smile was his calling card.
Many knew Randall as the Mayor of Catlettsburg, KY, a city he loved. He also ran a catering business, but it was more of a reason to socialize and be with people. You could say his hobby was helping people. Randall made sure everyone else was taken care of first.
Randall, trust you will not be forgotten. Remembered in the stories told of your hijinks and humor, the people you’ve helped and the lives you’ve touched. Rest well dear friend.
You may be familiar with the design, it has been used for years from junk yards to the toy dispenser in the mall arcade. The reason is simple, they work. The four finger design can lift almost anything. This is very handy in a scrap yard when you never know what is coming in next or the condition an item may be in.
This set is from a metal yard and they are abused on a daily basis. They pull scrap from rail cars and trucks all day and drop it into awaiting shredders and barges.
To extend the life of the hooks, the ends are cut off and new tips are welded on. All four “fingers” are replaced at the same time to keep balance and even wear of the unit. The key is making sure all four tips line up and meet in the center of the unit, ensuring maximum performance. Not an easy task on such a large and unwieldy assembly.
Here they are, ready for assembly on the unit. Soon they will be helping in the cycle of converting scrap into metal that will go back to the steel mills to make new products.
If you ever wondered where the custom training equipment in industrial classrooms come from, then look no further than Riggs Machine.
At Riggs we can create custom pieces from scratch, like this “oil flinger” demonstration unit. Shown from conception, with 3D renders, to the final unit in the classroom.
And we also often disassemble, create “cut-away” sections, sandblast, paint and reassemble actual pieces of equipment to be used in working classrooms. These units are used for hands-on training before students hit the field. Much better than a video or book based lecture.
Some of these jobs can be more time and labor intensive than actual repairs! But we don’t mind. We’re proud to be part of the team who help educate the next generation who will be keeping our refineries, steel mills and factories running.