Rod actuator
Parker Hannifin ETH rod actuator
High-force electro thrust cylinder in five sizes (ETH032 to ETH125) with ISO 15552 flange dimensions; series maximum about 114,000 N, 1.3 m/s and 2,000 mm stroke, IP54 or IP65, ATEX versions on some sizes.
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Need Parker Hannifin parts, a replacement or another suitable option? Send your part number or describe the application. We’ll review the requirement and help with product selection, sourcing, pricing and lead times.
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Key specifications
| Ingress protection | IP54, IP54 stainless screws, IP65 |
|---|---|
| Temperature | -10–40 °C |
| Force (max) | 114,000 N |
| Stroke (max) | 2,000 mm |
| Linear speed (max) | 1,333 mm/s |
| Screw lead | 5, 10, 16, 20 |
| Screw type | ball screw |
| Repeatability | 0.03 mm |
| Sizes | ETH032, 050, 080, 100, 125 |
| Mounting | ISO 15552 flange pattern |
Summarised in our own words from Parker-Hannifin Corporation's published data; series maxima, individual models vary. Last checked 2026-10-30. Source 1 · Source 2
Notes on this data
Repeatability +/-0.03 mm inline motor (+/-0.05 parallel). Ambient -10 to +40 C (operating -10 to +70 C). Force sensor option.
Specify Motion is not affiliated with Parker-Hannifin Corporation. Parker Hannifin and ETH are used only to identify the product. Comparisons use published figures; always confirm against the current datasheet.
Parker Hannifin ETH replacement and alternative options
Use these supply-network options as a starting point for an engineering check. We can also help source the original Parker Hannifin part. Published series figures do not establish an exact-model or drop-in replacement: confirm ratings, fit, interfaces and approvals for your application.
Steel-belt driven linear module with integral guide rail, intended as a long-stroke, high-speed replacement for pneumatic cylinders.
| Published maximum | ETH | LB Belt-Drive Linear Actuator |
|---|---|---|
| Force | 114,000 N | — |
| Stroke | 2,000 mm | 3,050 mm meets or exceeds |
| Speed | 1,333 mm/s | 2,000 mm/s meets or exceeds |
Fully sealed version of the LB belt module with added dust protection for cleanroom use.
| Published maximum | ETH | LBC Belt-Drive Linear Actuator (cleanr… |
|---|---|---|
| Force | 114,000 N | — |
| Stroke | 2,000 mm | 3,050 mm meets or exceeds |
| Speed | 1,333 mm/s | 2,000 mm/s meets or exceeds |
Figures are the highest published for each series and are not always measured the same way. A higher figure is not automatically a better choice: mounting, duty cycle, feedback, connectors and approvals matter too. An engineer will check the fit against your application before recommending anything.
Typical applications
What a rod actuator is
A rod actuator, sometimes called an electric cylinder, converts motor rotation into linear thrust through a screw and nut inside a tube, pushing a rod in and out like a pneumatic or hydraulic cylinder. The screw is usually a ball screw for efficiency, a roller screw for heavy loads or a lead screw for low cost. The rod is guided by bearings in the tube and an anti-rotation feature, and the motor is mounted inline or folded alongside through a belt or gear stage.
When engineers choose a rod actuator
Choose a rod actuator when the load is guided externally and needs pushing or pulling with controlled force, speed and position, typically to replace a pneumatic or hydraulic cylinder. It brings programmable positions, force control and energy savings. The trade-offs are side load and cost: the rod is not meant to carry significant radial load, and peak force for its size is lower than hydraulics. If the load needs carrying and guiding along the stroke, a rodless actuator or stage is usually better.
How to specify the Parker Hannifin ETH
Send these with your enquiry and an engineer can confirm the right ETH variant or an equivalent:
- Force: peak and continuous or RMS (N)
- Stroke (mm) and retracted length limits
- Speed and acceleration (mm/s, m/s²)
- Duty cycle or full motion profile
- Positioning repeatability (mm)
- Side load and mounting arrangement: trunnion, clevis or flange
- Motor and feedback preference, and environment (IP code, °C)
Common mistakes to avoid
- Sizing on peak force alone instead of RMS force over the cycle
- Rigidly mounting both ends so misalignment puts side load on the rod
- Ignoring critical speed and column buckling on long strokes
- Forgetting that a ball screw back-drives, so vertical loads need a brake
Parker Hannifin ETH: frequently asked questions
Can you help replace Parker Hannifin ETH or source the original?
Send the full model code, quantity and required date. Our engineers can check original-part availability and assess suitable alternatives, including Motion Control Products options where appropriate. We confirm compatibility and any changes needed before recommending a replacement.
What is the Parker Hannifin ETH?
High-force electro thrust cylinder in five sizes (ETH032 to ETH125) with ISO 15552 flange dimensions; series maximum about 114,000 N, 1.3 m/s and 2,000 mm stroke, IP54 or IP65, ATEX versions on some sizes. Published series figures include temperature -10 °C, temperature 40 °C, force 114,000 N, stroke 2,000 mm. It is made by Parker-Hannifin Corporation; Specify Motion can help source it or propose an equivalent.
Who makes the Parker Hannifin ETH?
The Parker Hannifin ETH is made by Parker Hannifin (Parker-Hannifin Corporation) and is listed here for engineers comparing options. Specify Motion is not affiliated with Parker-Hannifin Corporation; brand names are used only to identify the product.
What is the temperature of the Parker Hannifin ETH?
The published series minimum temperature is -10 °C. Individual models and sizes in the ETH range vary, so check the exact variant against your duty cycle, mounting and environment, or ask our engineers to confirm the right size for you.
Is there an alternative to the Parker Hannifin ETH?
We can assess suitable replacement options. On published figures, Motion Control Products LB Belt-Drive Linear Actuator and Motion Control Products LBC Belt-Drive Linear Actuator (cleanroom) are options to assess from our supply network. An engineer confirms the fit against your application before recommending anything.
What is the difference between a rod actuator and a rodless actuator?
A rod actuator pushes and pulls a rod extending from its body, so it suits loads that are guided by the machine, much like a cylinder. A rodless actuator moves a carriage along the body and carries the load itself, which handles moment loads and long strokes within the actuator's own length. Pick rod for thrust and rodless for carrying.
Can an electric rod actuator replace a hydraulic cylinder?
Often, yes, especially where force needs are moderate and precise positioning, cleanliness or energy savings matter. Electric rod actuators with roller screws reach high forces, but extreme forces in a small envelope still favour hydraulics. Compare peak and continuous force, duty, shock loads and space, and check the motor and drive sizing as well as the screw.
Further reading: How to size a linear actuator · Hydraulic to electric actuator · Linear actuators
Other rod actuator series
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Tell us how you use the Parker Hannifin ETH: the load, speed, duty and environment. Our engineers will confirm whether it is still the right part, find it for you, or propose an alternative that fits better.
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