
The AirTAC Airtac ATE Single Acting Guided Compact Cylinder ATE50X25B is a genuine single acting, pull (spring return) ISO 21287 compact air cylinder with a Ø50mm 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.
A single acting pull cylinder of the ISO 21287 compact family, the ATE50X25B uses a return spring to keep the rod extended at rest, while compressed air retracts it. At 0.5 MPa the 50 mm bore delivers a net pull of 775 N (1127.5 N at 0.7 MPa), already subtracting the spring force. The male rod thread from the B code bolts straight to external knuckles, and the body runs on 0.2-1.0 MPa (28-145 psi) filtered air.
The short hard-anodized aluminium body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight clamping nests and guarded assemblies. In practice, plan on roughly 465 N of real work at 0.5 MPa, and expect it to lift about 39 kg vertically once a 2:1 margin is applied. A fixed TPU bumper at each end absorbs end-of-stroke shock, and the optional -S magnet enables CMSE / DMSE switches when ordered.
| Model | Airtac ATE Single Acting Guided Compact Cylinder ATE50X25B |
|---|---|
| Series | ATE compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø50 mm |
| Stroke | 25 mm |
| Acting type | Single acting, pull (spring return) |
| Port size | 1/8" |
| Rod thread | M10×1.5 |
| 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.
| Pressure | Pull force (spring return) |
|---|---|
| 0.5 MPa | 775.0 N |
| 0.7 MPa | 1127.5 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).
| ATE | ISO 21287 compact cylinder (single-acting pull, spring-return). |
|---|---|
| 50 | 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.
The spring holds the clamp arm closed on a car-body bracket jig; a 3/2 valve vents air to pull the 16 mm rod back and release the part between welds.
Normally-extended pusher kicks a formed carton off a flight at the end of a 25 mm stroke; on air loss the spring re-extends so the lane never jams.
Order the -S magnet and a DMSE switch to confirm the retracted state of a small inspection gate on a bottling line before the vision station fires.
For this 25 mm pull class, the 40 mm bore offers 500.3 N at 0.5 MPa if your load is lighter, while the 63 mm bore reaches 1320 N when you need more grip. Remember that on air loss the spring returns the rod to its extended home position - it will not hold a mid-stroke pose. Choose LB foot or FA/FB flange brackets for fixed jigs, CA/CB clevis or SDB pivot for swinging levers, and add the -S code only if you need CMSE / DMSE position sensing.
Quick checklist
Net of the return spring, this 50 mm bore single acting pull cylinder gives 775 N at 0.5 MPa and 1127.5 N at 0.7 MPa. Working pressure is 0.2-1.0 MPa (28-145 psi) with 1.5 MPa (215 psi) proof pressure, air filtered to 40 um, speed 50-500 mm/s, and a 25 mm stroke on a 16 mm rod with male thread.
It is an ISO 21287 compact build whose short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, with FA/FB flange, LB foot, CA/CB clevis, CR, SDB pivot and FTC brackets plus I/Y knuckles available. Fixed TPU bumpers at both ends absorb end-of-stroke impact, and the optional -S magnet allows CMSE / DMSE switches; without -S no magnet is fitted.
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