Airtac ATE Single Acting Guided Compact Cylinder ATE40X25B
The AirTAC Airtac ATE Single Acting Guided Compact Cylinder ATE40X25B is a genuine single acting, pull (spring return) ISO 21287 compact air cylinder with a Ø40mm bore and 25mm stroke, 1/8" air ports and a hard-anodized aluminium body. Its short compact envelope saves about 50% of the mounting length of an ISO 15552 profile cylinder.
- BoreØ40 mm
- Stroke25 mm
- Port size1/8"
- Acting typeSingle acting, pull (spring return)
- Rod threadM8×1.25
- CushionFixed TPU bumper (both ends)
About the Airtac ATE Single Acting Guided Compact Cylinder ATE40X25B
This AirTAC ATE40X25B is a single acting pull cylinder with a spring return, meaning the spring extends the rod and air retracts it. It delivers a net pull force of 500.3 N at 0.5 MPa, with the spring force already accounted for, and requires a minimum of 0.2 MPa to move.
The ISO 21287 compact body is about 50% shorter than an ISO 15552 profile cylinder, saving valuable space in tight fixtures. With a male rod thread (B code) and no magnet fitted, this unit is ready for direct mechanical linkage, and you can add the optional -S magnet later for CMSE or DMSE sensor feedback.
Airtac ATE Single Acting Guided Compact Cylinder ATE40X25B Technical Specifications
| Model | Airtac ATE Single Acting Guided Compact Cylinder ATE40X25B |
|---|---|
| Series | ATE compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø40 mm |
| Stroke | 25 mm |
| Acting type | Single acting, pull (spring return) |
| Port size | 1/8" |
| Rod thread | M8×1.25 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.2 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 50 – 500 mm/s |
| Cushion | Fixed TPU bumper (both ends) |
| Max standard stroke | Up to 25 mm |
Specifications follow the official AirTAC ACE-series (ISO 21287) datasheet. Body: hard-anodized aluminium alloy; piston rod: S45C carbon steel with hard-chrome plating. Rod type: female thread (blank) or male thread (B). Thread options: PT (blank) / G. A built-in magnet is OPTIONAL — add the -S code to fit CMSE / DMSE position sensors.
Theoretical Output Force (Ø40mm)
| Pressure | Pull force (spring return) |
|---|---|
| 0.5 MPa | 500.3 N |
| 0.7 MPa | 729.0 N |
Single-acting pull: the spring extends the rod; air retracts it. Forces already net the spring; minimum working pressure is 0.2 MPa. Single-acting strokes are short (Ø12 to 10 mm, Ø16-100 to 25 mm).
Model Code: Airtac ATE Single Acting Guided Compact Cylinder ATE40X25B
| ATE | ISO 21287 compact cylinder (single-acting pull, spring-return). |
|---|---|
| 40 | Bore size in mm. |
| ×25 | Stroke length in mm. |
| S | Optional built-in magnet for CMSE / DMSE sensors (omit for no magnet). |
| B | Rod type: B = male thread; blank = female thread. |
ACE-family variants: ACE (double acting), ASE / ATE (single acting push / pull), ACED (double rod), ACEJ (adjustable stroke), TACE / TACED (non-rotating twin-guide yoke). Mounting accessories: FA / FB flange, LB foot, CA / CB clevis, CR, SDB pivot, FTC; plus I and Y knuckles. Thread PT (blank) / G.
Where the Airtac ATE Single Acting Guided Compact Cylinder ATE40X25B Is Used
Jig Clamping
Use the 500.3 N pull to securely clamp a workpiece in a CNC milling fixture. The compact body fits within the machine envelope, and the spring return releases the part when air is removed.
Label Applicator
Retract a label applicator head with 500.3 N of force to press labels onto boxes on a packaging line. The 25 mm stroke is ideal for this short, repeatable motion, and the male rod thread simplifies mounting the applicator.
Gate Valve Actuator
Pull a small gate valve closed on a pneumatic conveying system. The 500.3 N pull at 0.5 MPa is sufficient for the valve's resistance, and the spring return ensures the valve opens (fails to extended) if air pressure is lost.
Is the Airtac ATE Single Acting Guided Compact Cylinder ATE40X25B the Right Cylinder?
For a lighter pull application, consider the ATE32X25 with 296 N at 0.5 MPa, while the ATE50X25 offers a stronger 775 N pull for heavier loads. This 40 mm bore model is a balanced middle ground for medium-duty tasks. Remember, the spring returns the rod to its extended position on air loss, so it does not hold a mid-stroke position.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Short stroke fits the compact body
- ✓ Port/thread type (PT / G)
- ✓ Add -S if you need the magnet for sensors
- ✓ Rod type (female / male B) & mount (FA/LB/CA)
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.2 – 1.0 MPa operating pressure.
- check Compact body: keep the stroke short and avoid side load on the rod.
- check Do not dismantle the threaded front/back covers.
- check Single-acting: do not force the rod against the spring.
- check Installation by qualified personnel per AirTAC docs.
Airtac ATE Single Acting Guided Compact Cylinder ATE40X25B FAQ
The ATE40X25B provides a net pull force of 500.3 N at 0.5 MPa and 729 N at 0.7 MPa, with the spring force already subtracted. It operates from 0.2 to 1.0 MPa (28-145 psi) and has a proof pressure of 1.5 MPa (215 psi).
No, the ATE40X25B is built without a magnet. To use CMSE or DMSE sensors, you must order the cylinder with the optional -S code, which adds the magnet for position sensing. The fixed TPU bumper at both ends handles end-of-stroke deceleration.
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