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Project managers, engineers and contractors in the offshore industry rely on Swanson Industries for total design, new manufacturing, overhauls and repairs to hydraulic cylinders. With US facilities strategically located in Ohio and West Virginia, and South American facilities in Rio de Janeiro, Brazil, Swanson has the flexibility to respond to inquiries and situations anywhere in the Americas - and beyond. 
Knowing our business so thoroughly means that we can take the decisive action needed to keep the job on track and on schedule.
Hydraulic cylinders for the offshore industry
More than 50 years of hydraulic experience combined with in-house seasoned engineers and machinists ensures Swanson Industries' expertise in designing, building, and testing all hydraulic components to meet or exceed offshore industry standards. We offer the following range of cylinders:

Long-stroke large-bore cylinders
Motion-compensator cylinders
Production and drilling riser cylinders
Offshore dredging cylinders
Heavy-duty cylinders
Cylinders for harsh environments
Double-ended cylinders
Double-acting cylinders
Single-acting plunger cylinders
CMC cylinders
Wireline tensioner cylinders

Large-bore long-stroke hydraulic cylinders
Swanson Industries is certified to design and manufacture large-bore long-stroke hydraulic cylinders. The firm is accredited by ISO 9001:2008 and the NFPA. Additionally, Swanson Industries' cylinders are manufactured to comply with engineering standards set by the American Bureau of Shipping (ABS) and DNV.
The cylinders are available in bore sizes up to 46in, 10,000psi and strokes up to 60ft.
In addition to designing and manufacturing specific cylinders to fit the needs of our customers, Swanson Industries also provides reverse engineering services.
Laser cladding and hydraulic cylinder repair 
Swanson Industries' unique resurfacing technology restores worn or damaged hydraulic components, rolls, shafts and gears to prime working condition. Swanson's ISO 9000-registered laser processing leverages high-powered laser and CNC technology to surface-coat components with metal alloys.
Depending on the desired application, Swanson Industries will resurface or 'clad' a new or damaged component with a specified alloy - austenitic or martensitic stainless steel, precipitation-hardening stainless steel, or nickel or cobalt-based alloy. This high-density process called 'laser cladding' enables rapid heat transfer to metallurgically bond an alloy with specified properties to a component substrate and is performed with 20kW, 12kW and 4kW laser systems, depending on part size. Applications include potential internal diameter repair of cylinders and mechanical gear repair.
This provides the following industry advantages:

Selective hardness ranges
Various levels of corrosion resistance
Matching substrate chemistry
Minimal inter-metallic dilution
Low heat input
Low thermal distortion
Narrow heat-affected zone

Swanson Industries puts its unique technology to work in rebuilding, reconditioning, and/or restoring a wide range of hydraulic equipment, including large bore hydraulic and pneumatic cylinders, rods, pumps, motors and valves to original equipment manufacturer (OEM) specifications.  
Hydraulic cylinder replacement parts
To decrease production downtime and costs to customers, Swanson Industries maintains a wide variety of bar stock and tubing as well as spare replacement and reconditioned parts on-site. This includes an array of replacement rods in varying sizes.
Cylinders with microwave position sensors
Swanson Industries' long-stroke large-bore cylinders are equipped with microwave position sensors to continuously monitor the stroke location of each piston rod.
About Swanson Industries
Since 1964, Swanson Industries has demonstrated expertise in designing and manufacturing new products; remanufacturing and repairing components; engineering; and distribution of certified products. 
In an increasingly complex and competitive market, Swanson brings the customer appreciable savings in both project time and costs. With a local presence around the US and strategic international manufacturing locations, Swanson Industries provides the resources and on-the-job performance essential for meeting difficult scheduling requirements.