Rodless screw actuator
Festo EGC-BS-KF rodless screw actuator
Ball screw axis with recirculating ball bearing guide in four sizes; series maximum 3,000 N feed force, 2 m/s and 3,000 mm stroke, repeatability +/-0.02 mm at 100% duty.
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Key specifications
| Ingress protection | IP40 |
|---|---|
| Temperature | -10–60 °C |
| Force (max) | 3,000 N |
| Stroke (max) | 3,000 mm |
| Linear speed (max) | 2,000 mm/s |
| Screw lead | 10, 20, 25, 40 |
| Repeatability | 0.02 mm |
| Duty | 100% |
| Sizes | 70, 80, 120, 185 |
Summarised in our own words from Festo SE & Co. KG's published data; series maxima, individual models vary. Last checked 2026-10-30. Source 1
Specify Motion is not affiliated with Festo SE & Co. KG. Festo and EGC-BS-KF are used only to identify the product. Comparisons use published figures; always confirm against the current datasheet.
Festo EGC-BS-KF replacement and alternative options
Use these supply-network options as a starting point for an engineering check. We can also help source the original Festo part. Published series figures do not establish an exact-model or drop-in replacement: confirm ratings, fit, interfaces and approvals for your application.
Economical rodless screw actuator derived from the BC2 band cylinder, with solid-bearing rods and a stainless band seal for light to moderate loads.
| Published maximum | EGC-BS-KF | BCS Rodless Screw (BCS/MCS) |
|---|---|---|
| Force | 3,000 N | 11,700 N meets or exceeds |
| Stroke | 3,000 mm | 3,048 mm meets or exceeds |
| Speed | 2,000 mm/s | — |
Screw-driven rodless actuator in six sizes, with a solid-bearing (S) or profiled-rail (P) carrier for moderate to heavy guided loads.
| Published maximum | EGC-BS-KF | MXE Screw-Drive Rodless (MXE-S / MXE-P) |
|---|---|---|
| Force | 3,000 N | 19,127 N meets or exceeds |
| Stroke | 3,000 mm | 3,411 mm meets or exceeds |
| Speed | 2,000 mm/s | — |
Steel-belt driven linear module with integral guide rail, intended as a long-stroke, high-speed replacement for pneumatic cylinders.
| Published maximum | EGC-BS-KF | LB Belt-Drive Linear Actuator |
|---|---|---|
| Force | 3,000 N | — |
| Stroke | 3,000 mm | 3,050 mm meets or exceeds |
| Speed | 2,000 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 rodless screw actuator is
A rodless screw actuator moves a carriage along the actuator body using a ball or lead screw inside a profile. The load mounts directly on the carriage, which runs on guides, either internal bearings or profile rails, so the actuator carries and guides the load as well as moving it. A sealing band typically closes the slot along the body. The motor mounts at one end, inline or folded, and stroke is set by the body length.
When engineers choose a rodless screw actuator
Choose a rodless screw actuator when the load needs carrying along a guided path with good positioning accuracy and stiffness, such as in pick-and-place, gantries and positioning axes. Screw drive gives high thrust and precision. The trade-offs are speed and length: long screws hit critical speed limits, so long strokes run slower. For long, fast strokes with lighter loads, a belt-driven rodless actuator is usually better.
How to specify the Festo EGC-BS-KF
Send these with your enquiry and an engineer can confirm the right EGC-BS-KF variant or an equivalent:
- Payload mass and position offset (kg, mm)
- Moment loads on the carriage (Nm)
- Stroke (mm), speed (mm/s) and acceleration (m/s²)
- Thrust force needed (N)
- Repeatability (mm)
- Orientation: horizontal, vertical or wall-mounted
- Environment and sealing (IP code)
Common mistakes to avoid
- Ignoring moment loads from offset payloads
- Choosing a long stroke at high speed and exceeding screw critical speed
- Not adding a brake for vertical axes
- Assuming the sealing band keeps out fine dust or liquids
Festo EGC-BS-KF: frequently asked questions
Can you help replace Festo EGC-BS-KF 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 Festo EGC-BS-KF?
Ball screw axis with recirculating ball bearing guide in four sizes; series maximum 3,000 N feed force, 2 m/s and 3,000 mm stroke, repeatability +/-0.02 mm at 100% duty. Published series figures include temperature -10 °C, temperature 60 °C, force 3,000 N, stroke 3,000 mm. It is made by Festo SE & Co. KG; Specify Motion can help source it or propose an equivalent.
Who makes the Festo EGC-BS-KF?
The Festo EGC-BS-KF is made by Festo (Festo SE & Co. KG) and is listed here for engineers comparing options. Specify Motion is not affiliated with Festo SE & Co. KG; brand names are used only to identify the product.
What is the temperature of the Festo EGC-BS-KF?
The published series minimum temperature is -10 °C. Individual models and sizes in the EGC-BS-KF 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 Festo EGC-BS-KF?
We can assess suitable replacement options. On published figures, Tolomatic BCS Rodless Screw (BCS/MCS) and Tolomatic MXE Screw-Drive Rodless (MXE-S / MXE-P) are options to assess from our supply network. An engineer confirms the fit against your application before recommending anything.
Is a belt or screw rodless actuator better?
A screw rodless actuator gives more thrust, stiffness and positioning accuracy, which suits pressing, vertical axes and precise positioning. A belt actuator is faster and handles longer strokes, which suits transfer and pick-and-place over distance. Many machines use both: belts for long horizontal moves and screws for shorter, precise or vertical axes.
What limits the speed of a screw-driven actuator?
Speed is limited by the screw's critical speed, the rotation at which it starts to whip. Critical speed falls sharply as unsupported length increases, so long strokes have lower maximum speeds. Screw supports, larger diameters or a coarser lead raise usable speed. Manufacturers publish speed against stroke curves that should be checked.
Further reading: Rodless belt vs screw actuators · How to size a linear actuator · Linear actuators
Other rodless screw actuator series
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Tell us how you use the Festo EGC-BS-KF: 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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