Airtac ATE Single Acting Guided Compact Cylinder ATE40X20
The AirTAC Airtac ATE Single Acting Guided Compact Cylinder ATE40X20 is a genuine single acting, pull (spring return) ISO 21287 compact air cylinder with a Ø40mm bore and 20mm 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
- Stroke20 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 ATE40X20
This AirTAC ATE40X20 is a SINGLE-ACTING PULL cylinder with spring return, so the spring extends the rod and air retracts it. At 0.5 MPa it delivers 500.3 N of pull force net of the spring, and at 0.7 MPa that rises to 729 N, making it a solid choice for light assembly tasks. The ISO 21287 compact body is about 50% shorter than an ISO 15552 profile cylinder, which helps it fit into tight machine guards and gantries where space is limited. With a 40 mm bore and 20 mm stroke, it is built for short, precise retract movements rather than long travel.
The rod is 12 mm with a female M8x1.25 thread, and the port is 1/8" PT. For a real-world load, plan on about 300 N of safe work at 0.5 MPa, which translates to lifting roughly 30 kg vertically with a 2:1 safety margin. The hard-anodized aluminium body and S45C hard-chrome rod resist wear in continuous cycling, and the fixed TPU bumper absorbs end-of-stroke energy. Minimum working pressure is 0.2 MPa, and the operating range is 0.2-1.0 MPa (28-145 psi) with a proof pressure of 1.5 MPa (215 psi).
Airtac ATE Single Acting Guided Compact Cylinder ATE40X20 Technical Specifications
| Model | Airtac ATE Single Acting Guided Compact Cylinder ATE40X20 |
|---|---|
| Series | ATE compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø40 mm |
| Stroke | 20 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 ATE40X20
| ATE | ISO 21287 compact cylinder (single-acting pull, spring-return). |
|---|---|
| 40 | Bore size in mm. |
| ×20 | 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 ATE40X20 Is Used
Jig Clamping in CNC Fixtures
Use the 500.3 N pull at 0.5 MPa to retract a clamping pin in a CNC fixture, holding a small bracket during drilling. The compact body fits under the worktable where a longer cylinder would interfere with chip removal.
Carton Tabbing on a Packaging Line
In a carton erecting machine, this cylinder pulls a tab into place before sealing. The 20 mm stroke matches the tab depth, and the spring return resets the tab quickly at speeds up to 500 mm/s.
Gate Release on a Safety Guard
Mount this ATE40X20 on a machine guard to retract a latch bolt when air is applied. The spring extends the bolt to lock the guard when air is off, providing a fail-safe extended position that meets basic safety logic.
Is the Airtac ATE Single Acting Guided Compact Cylinder ATE40X20 the Right Cylinder?
When sizing, compare this 40 mm bore against the 32 mm bore, which pulls 296 N at 0.5 MPa, or step up to the 50 mm bore for 775 N at 0.5 MPa. The ATE40X20 suits applications needing moderate pull force in a short stroke, but remember it is single-acting pull, so it does not hold a mid-stroke position on air loss - the spring returns the rod to its extended home. Mounting options include FA/FB flange, LB foot, CA/CB clevis, CR, SDB pivot, and FTC brackets, all compatible with the ISO 21287 face. Since this model has no -S code, it has no magnet, so CMSE or DMSE sensors cannot be fitted; order the -S version if you need position sensing.
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 ATE40X20 FAQ
The ATE40X20 delivers 500.3 N of pull at 0.5 MPa and 729 N at 0.7 MPa, both net of the return spring. Minimum working pressure is 0.2 MPa, operating range is 0.2-1.0 MPa (28-145 psi), and proof pressure is 1.5 MPa (215 psi). Speed range is 50-500 mm/s, and the fixed TPU bumper absorbs energy at both ends.
The ATE40X20 uses an ISO 21287 compact design that saves about 50% of the mounting length compared to an ISO 15552 profile cylinder. This lets it fit into narrow jigs, guards, and gantries. The body is hard-anodized aluminium with a hard-chrome S45C rod, and the bumper is a fixed TPU pad, not an adjustable feature. This model has no magnet, so order the -S code if you need CMSE or DMSE sensors.
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