The Kyntronics SMART Electro-Hydraulic Actuator SHA, combines the Benefits of Both Electro-Mechanical Actuators (EMA) and Traditional Hydraulics while eliminating their shortcomings. Resulting in an actuation solution with superior functionality at a lower price point.

 

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See Why the Kyntronics SHA Electro-Hydraulic Actuator is the Superior Solution over traditional hydraulics and electro-mechanical actuator solutions.

• SHA Product Design Elements
• Designed for Maximum Reliability and Minimal Maintenance
• Actuator Reliability Comparison: SHA vs. Ball Screw / Roller Screw Actuator
• Annual Operating Cost Comparison Kyntronics SMART Electro-Hydraulic Actuators (SHA) vs Traditional Hydraulic system (HPU)

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SHA Product Design Elements

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Designed For Maximum Reliability and Minimal Maintenance

Design Features Include:

• No metal-to-metal wear points
• Rod seal tested to over 50 million inches of travel without failure (load independent)
• Closed system eliminates contamination, moisture and air infiltration
• Oversize wear rings and bearings provide extra support during rod-extension
• Servo control eliminates pressure spikes
• Relief valves eliminate over pressure
• Temperature monitoring eliminates over-temperature conditions
• Minimal fluid; for example: estimated volume of fluid is 30 fluid ounces for a 2.0” bore X 3.0” stroke with a 1.0” rod diameter

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Actuator Reliability Comparison: SHA vs. Ball Screw / Roller Screw Actuator

• EMA Life is load dependent. Improving EMA life requires larger and more expensive size screws
• EMA Metal-to-Metal Wear further decreases reliability and requires regular lubrication
• EMAs are highly susceptible to damage from shock loads and side-loading
• SHA is rated at 50,000,000 inches of travel (before a simple rod seal change) regardless of load.

Learn more… Kyntronics SHA comparison with Electro-Mechanical Actuators

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Annual Operating Cost Comparison
Kyntronics SMART Electro-Hydraulic Actuators (SHA) vs Traditional Hydraulic

Operating Cost Component	SHA	HPU	Assumptions / Cost Basis (April 2022)
Environmental			200 Gallon HPU Tank Hydraulic Fluid Index (HFI) = 4.1 SHA is sealed - no fluid replacement or disposal is required
Oil Replenishment Used Oil Disposal	$0 $0	$30,400 $16,000	$38/gal X 800 gallons (4:1 HFI) $20/gal X 800 gallons (4:1 HFI)
Energy			SHA Uses Power on Demand 30 HP Hydraulic Power Unit that Runs Continuously SHA is 70% efficient (based on Kyntronics testing) HPU 22% is efficient (based on IFPE paper)
Energy Usage	$966	$9,664	Using $0.10 per KWh (rates vary from - $0.08 to $0.19 KWh)
Floor Space Utilization / Maintenance Time			SHA is All-In-One, no floor space required HPU requires space of 10'x10' = 100 Sq-Ft @ $20 per sq-ft
Floor Space Maintenance Time	$0 $1,750	$2,000 $5,250	SHA @ 1 hr/week @ Labor $35/hr HPU @ 3 hrs/week @ Labor $35/hr
Human Factor			HPU oil leaks create hazardous conditions and safety risk SHA is totally sealed, no oil leak risk
Time off / Medical / Legal	$0	$2,000	Lost days + Medical costs + Legal costs
Machine Downtime / Product Scrap
80% of unplanned machine downtime is caused by contaminated lubricants Product Spoilage	$0 $0	$10,000 $10,000	SHA is totally sealed, no oil leak risk, minimal downtime risk. $10,000 $4k-$6k average downtime costs per incident. Assuming two downtime events. 1% scrap from product contamination due to leaky connections
Annual Operating Costs	$2,716	$85,314	An $82,598 Annual Savings Opportunity!

References:

The basis for several of the assumptions used in the annual operating cost table originate from Fluid Power Industry published statistics and sources noted below:

• Hydraulic Oil Consumption – Measure to Manage
• Assessing Industrial Hydraulic System Efficiency
• Hydraulic System Leakage - The Destructive Drip
• Calculating the Cost of Downtime

Learn more… Kyntronics SHA comparison with Hydraulic Cylinder Actuators