Hydraulic Elevators Industry Forecast: Cost, Lifespan, and Maintenance Trends
Despite early predictions that machine-room-less (MRL) traction elevators would replace them, hydraulic elevators are thriving across the U.S. market. For applications with 50 feet or less of travel, hydraulic systems remain the industry's preferred choice—delivering performance comparable to MRL traction alternatives at significantly lower initial construction and operating costs.
Modern engineering has eliminated traditional hydraulic drawbacks. Advanced cylinder encapsulation, liners, and PVC bulkheads drastically reduce environmental risks, while updated well-hole designs extend overall equipment lifespan.
However, building owners must watch the fine print. Industry trends show many contractors excluding suspension means (hoist ropes, belts) from standard traction and MRL maintenance contracts. Without specialized coverage—such as an ATIS Vertical Transportation Maintenance Specification (VTMS)—owners risk unexpected, high-cost repair bills down the road.
Key Considerations for Property Owners
While hydraulic systems offer clear upfront savings and proven durability for low-rise applications, selecting the right equipment comes down to specific operational demands. Consider these core factors when evaluating your options:
Construction
The conventional hydraulic elevator installation sells for about 35% less than an MRL Traction elevator.
Energy
The pump motor in a hydraulic elevator is only energized when the car is running in the up direction. When the car is in the down direction only the low voltage solenoid valve is energized, resulting in a virtual zero cost to operate.
Preventive Maintenance
Hydraulic elevators are typically less costly to maintain. A four stop hydraulic elevator costs about 25% to 30% less per year for a “full maintenance” service when compared to a traction elevator.
Consider a maintenance service program for a hydraulic elevator from the service contractor’s point of view. What starts off as a good deal for everyone begins to sour. Even when the contractor receives an increase in the service price each year, the aging equipment, deterioration of the oil, and need for frequent parts replacement causes increased callback and repair time. This cycle begins to erode the profit margin of the contractor along with the customer level of trust and satisfaction.
Callback Maintenance (Hydraulic and Traction)
This service area has become an additional revenue stream for the contractor when call backs are not covered by the service contract, or overtime is billed to the customer. To some contractors, increased unscheduled callback time is not an additional labor cost because the route mechanic is expected to complete the route service along with callbacks responded to during the month. To meet the demand of service calls on the route, the contractor must allow sufficient time for servicing the elevator. This flawed concept results in frustrated mechanics and adds revenue for the company. The company still receives the payment from the customer. However, the many negatives of methodology are hidden in the form of opportunity costs to the owner and contractor. What is this doing to the contractor’s overall reputation? What about the degradation of the equipment? These are real costs; consider why the rental car industry services its vehicles every time they are returned.
Litigation Cost
Under the “call back” service program noted above; how many liability claims is the contractor forced to defend against claims for improper operation of the elevator? This methodology has resulted in increased litigation and liability insurance costs for the contractor and industry.
Maintenance Control Plan (MCP)
Borrowing from automotive and aviation service standards, modern maintenance control plans (MCPs) are revolutionizing elevator care. While advanced diagnostics improve equipment oversight, maintaining top operating condition requires dedicated, hands-on service time. Adopted under ASME A17.1, the MCP establishes a clear, prescribed schedule of maintenance tasks. These standardized programs give both building owners and service contractors a shared, verifiable framework for routine elevator care.
Things to Think About
How much more effective could a technician be when servicing accounts with fewer callback interruptions?
How much better service could be delivered to the customer when a visit takes place?
How would the public perception of the service contractor be with their fleet of elevators operating efficiently, and without noise, leveling and reliability issues?
How predictable would the replacement of parts be?
Accurate predictions would result in more efficient and reliable uptime.
Would reliability command a premium service price in most hydraulic and traction markets?
The MCP program can produce a higher level of customer satisfaction. The contractors that are looking for 10-year, 20-year, or even “lifetime” contracts can realistically offer this custom service program to premium clients.
New Ideas for Hydraulic Elevators
When it comes to hydraulic elevators, one maintenance methodology is rapidly gaining industry adoption: proactive oil preservation. Through periodic oil testing, chemical analysis, and filtration, building owners can prevent fluid degradation before it damages valves, seals, and pumps. Unmanaged hydraulic oil creates widespread system wear—controlling oil quality directly stabilizes operating costs, extends component lifespans, and prevents premature equipment failure.
After the oil industry and science addressed the automotive industry, more challenging applications were then confronted. The aviation, marine, industrial, power transmission, and turbine industries were subjected to close analysis. One by one, the standards and usage for each industry were examined and refined.
When looking at the common oil usage in all the above applications, we arrive at some basic understanding and functions of oil:
Lubrication: Reduction of friction in moving parts, thereby extending the life of those parts
Transfer of heat: Keeping moving parts cool
Transmitting force: Such as used in a hydraulic system for power assisted mechanical equipment
Providing dielectric strength: Normally used in electric power transmission equipment
Preventing corrosion: Example: Cleaning and oiling weapons during military service
A reduction in the volume of oil in a system has minimal effect on these except for Nos. 2, Transfer of Heat and 3, Transmitting Force. Since the early 1960’s most of transportation, industrial, marine, aviation, power transmission, and turbine equipment have the benefit of operating with more efficient engineering of hydraulic system designs, employing less oil and higher pressures.
To keep equipment operating efficiently and protect capital investment, industry related owners and managers were compelled to improve the quality of maintenance programs. Oil testing and analysis programs were developed to determine the relationship of wear on the equipment and degradation of the oil.
Laboratory analysis reveals a crucial fact for building owners: hydraulic oil doesn't actually wear out—it simply becomes oxidized and contaminated. Left untreated, acid build-up and sludge erode internal components, restrict heat dissipation, and accelerate system wear.
Rather than paying for costly, full-system oil replacements, targeted filtration can remove these impurities while fresh oxidation inhibitors restore the oil to peak condition. Furthermore, routine fluid sampling establishes a clear health baseline for your power unit, allowing facility managers to detect internal component wear before a catastrophic failure occurs.
The Elevator Industry
Elevator manufacturers now design equipment with high operating pressures and reduced quantities of oil in hydraulic power units to control cost and space. The result of these designs is the hydraulic system must work harder at removing heat, transmitting force and lubricating the components in the system. With all three of those factors noted; the hydraulic systems are frequently showing signs of premature oil aging, contamination and degradation.
One manufacturer produced a chart with the operating range for their power unit not to exceed 185 degrees Fahrenheit. This is the upper range of satisfactory oil temperatures. The operating temperature of oil is critical in this equation. The main catalyst that starts the process and speeds the aging process in hydraulic oil is the elevated operating temperature.
Unsealed hydraulic reservoirs expose fluid to two constant threats: excess heat and atmospheric moisture. Over time, oxidation creates harsh organic acids that attack system mufflers, valve O-rings, and synthetic seals, causing them to become brittle and leak.
As heat breaks down the fluid, sludge forms along the tank walls, acting as an insulator that traps heat and compounds system wear. Regular fluid analysis and thermal management prevent this breakdown, protecting polished metal surfaces from micro-pitting and saving building owners from expensive power unit overhauls.
Fluid contamination directly impacts passenger experience and operational costs. Dissolved moisture in hydraulic oil manifests as poor ride quality, causing noticeable "sponginess" or bouncing when the elevator travels.
Worse, when particulates, varnish, and acidic sludge collect inside valve bodies, contractors often misdiagnose the issue. Instead of treating the contaminated oil, they waste time on repeated callbacks, replacing expensive valves, or repeatedly swapping cylinder packings.
When properly maintained, monitored, and kept at optimal operating temperatures, the core mechanical components can operate reliably for 30 to 50 years without requiring major equipment overhauls.
Oil Management:
A good hydraulic oil testing and reclamation program can make the equipment last longer and perform more efficiently. This in turn will help control the maintenance contractor’s labor and parts overhead and profit margin while properly maintaining the equipment.
For the record, let’s begin to think of the MCP as “Asset Management” rather than the misnomer a preventive maintenance program. The result can be a successful service program. Not just a win for the service contractor, it can be a win for the owner too. If a typical hydraulic elevator is installed today, we might replace the controller and minor components in say 15-25 years. The pump motor, when protected with an electronic soft starter, should also last for 15-25 years without a major incident- or longer depending on usage.
The hydraulic elevator system, when properly serviced and oil preserved, should theoretically remain intact except for minor repairs. The main hydraulic control valve when kept clean with filtered and uncontaminated oil, should be able to withstand 25 years and countless cycles of use. This reliability can be expected if combined with in ground hydraulic cylinders enclosed in a protective PVC sleeve and isolated from corrosion and electrolysis, oxidation and ground water contamination.
The hydraulic system can provide reliable service well beyond 25 years. We might go further and ask; just how long would a hydraulic elevator last if the door system hardware is also properly maintained and repaired along with the hydraulic system and controller? 25-50, maybe 75 years? Why not?
Considering regular systematic visits by a technician in a managed asset protection plan and MCP. The service contractor should be able to calculate a predictable component failure rate and scheduled replacement plans that reduces exposure to the uncertainty of faulty operation and subsequent litigation costs. Improved reliability and predictability will also provide more consistent and predictable profit margins. In short, a lifetime service program that is mutually successful for the buyer and seller.
What’s All This Mean?
Proactive oil testing and reclamation are quickly becoming the gold standard for low-rise vertical transportation management. While traction MRL systems are often marketed on energy savings and smaller footprints, those pitch points rarely tell the whole financial story.
When building owners factor in lower initial construction costs, reduced maintenance overhead, and a 30-to-50-year equipment lifespan achieved through proactive fluid care, the total cost of ownership strongly favors the hydraulic elevator. Independent oversight and rigorous maintenance specifications ensure these savings actually reach your bottom line.
Learn more about ATIS’s hydraulic oil testing service.
Authors: Frank Fletcher & Michael Fagan
Notes From:
Article : Pitfalls_Lube_Oils_Hydraulic_Fluids_in_Heat_Transfer_Systems – Paratherm.com
Article: Reclaiming Hydraulic Oil Eliminates Disposal Problems by William Stofey – Hydraulics and Pneumatics
S.D. Meyers Inc, Transformer Consultants
A Guide to Transformer Maintenance: S. D. Myers, J. J. Kelly, R. H. Parrish, E. L. Raab
Michael Johnson – The Gorman Company
Roy Kennedy – Linden Elevator Specialties, Inc.| roy@lindenelevator.com