This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ATE20X25S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ATE20X25S in place of this model. The ACE replacement is a current-production ISO 21287 compact cylinder in the same bore, stroke and force class, with a matching short body and the same mounting-accessory family, so it fits the same envelope. Confirm mounting-interface dimensions against the ACE datasheet before ordering.
Airtac ATP Single Acting Port Compact Cylinder ATP20X25S
The AirTAC Airtac ATP Single Acting Port Compact Cylinder ATP20X25S is a single acting, pull (spring return) DIN-standard tight/compact air cylinder with a Ø20mm bore and 25mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ATE20X25S (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ20 mm
- Stroke25 mm
- Port sizeM5×0.8
- Acting typeSingle acting, pull (spring return)
- Rod threadM6×1.0
- StatusDiscontinued → ATE20X25S
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac ATP Single Acting Port Compact Cylinder ATP20X25S
A single acting pull cylinder with spring return, the ATP20X25S keeps its rod extended by spring force and retracts it with compressed air, so it fails to the extended home position when air is lost. This discontinued 20 mm bore model delivers 88.1 N of pull at 0.5 MPa and 135.2 N at 0.7 MPa, both figures already net of the return spring, and needs at least 0.2 MPa of air to overcome the spring. The S code means the optional -S magnet is fitted, so CMSE or DMSE reed and solid-state switches can be mounted directly on the body.
The short ISO 21287 class body saves roughly 50% of the mounting length of an ISO 15552 profile cylinder, which is why it slots into tight jigs and guarding where a full-length body cannot. In practice the 88.1 N pull at 0.5 MPa supports about 53 N of real work once you plan a margin, and the rod can lift roughly 4 kg vertically with a 2:1 safety factor. A hard-anodized aluminium body, S45C hard-chrome rod and fixed TPU bumpers at both ends round out the build. Since the ATP is out of production, the current drop-in is the ATE20X25; confirm ISO 21287 mounting dimensions before swapping.
Airtac ATP Single Acting Port Compact Cylinder ATP20X25S Technical Specifications
| Model | Airtac ATP Single Acting Port Compact Cylinder ATP20X25S |
|---|---|
| Series | ATP DIN compact cylinder (discontinued) |
| Replacement | ATE20X25S |
| Bore size | Ø20 mm |
| Stroke | 25 mm |
| Acting type | Single acting, pull (spring return) |
| Port size | M5×0.8 |
| Rod thread | M6×1.0 |
| 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 bumper (both ends) |
| Max standard stroke | Up to 25 mm |
Specifications follow the official AirTAC ACP datasheet (now discontinued). The ATE20X25S (ISO 21287) carries the same bore/stroke/force class; confirm mounting-interface dimensions against the ACE datasheet before installation. Rod type: female thread (blank) or male thread (B). Thread options: PT (blank) / G.
Theoretical Output Force (Ø20mm)
| Pressure | Pull force (spring return) |
|---|---|
| 0.5 MPa | 88.1 N |
| 0.7 MPa | 135.2 N |
Single-acting pull: the spring extends the rod; air retracts it. Forces already net the spring; minimum working pressure is 0.2 MPa.
Model Code: Airtac ATP Single Acting Port Compact Cylinder ATP20X25S
| ATP | DIN compact cylinder (single-acting pull, spring-return, discontinued). |
|---|---|
| 20 | Bore size in mm. |
| ×25 | Stroke length in mm. |
| S | Optional built-in magnet for sensor position sensing (omit for no magnet). |
| B | Rod type: B = male thread; blank = female thread. |
Replacement mapping (swap P for E): ACP→ACE, ASP→ASE, ATP→ATE, ACPD→ACED, ACPJ→ACEJ. ACP-family: ACP (double acting), ASP / ATP (single acting push / pull), ACPD (double rod), ACPJ (adjustable stroke).
Where the Airtac ATP Single Acting Port Compact Cylinder ATP20X25S Is Used
Spring-out clamp on a drill jig
The spring holds a small aluminium bracket against a drill jig stop while air retracts it for loading; 88.1 N of pull at 0.5 MPa suits light clamping under 50 N.
Lid lift on a benchtop test fixture
Spring extend raises the acrylic guard of an electronics test rig about 4 kg equivalent vertically with a 2:1 margin, and air pulls it down for the test cycle.
Position-flagged ejector on a sorter
The fitted -S magnet lets a DMSE switch confirm the extended home position of a small parts ejector, so the PLC blocks the next conveyor index until the spring has returned the rod.
Replacing the Airtac ATP Single Acting Port Compact Cylinder ATP20X25S with the ATE20X25S
At 20 mm bore this unit sits between the 16 mm size (53.3 N pull at 0.5 MPa) and the 25 mm size (170.9 N pull at 0.5 MPa), so step up to 25 mm if your clamp or return load exceeds about 53 N of working pull. Strokes in this family are short by design, and the spring only returns the rod to the extended end, never a held mid-stroke. FA/FB flange, LB foot and CA/CB clevis mounts bolt to the same face, and because this model carries the -S magnet, CMSE / DMSE switches give end-of-stroke signals. Order the ATE20X25 as the current-production replacement.
Replacement checklist
- ✓ Current-production ACE → ATE20X25S
- ✓ Same bore / stroke / force class
- ✓ Confirm ISO 21287 mounting dimensions
- ✓ Port/thread type (PT / G)
- ✓ Add -S for magnet if you need sensors
Airtac ATP Single Acting Port Compact Cylinder ATP20X25S FAQ
Pull force is 88.1 N at 0.5 MPa and 135.2 N at 0.7 MPa, both net of the return spring. Operating range 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, temperature -20 to +70 C. The 20 mm bore has a 10 mm rod, an M5x0.8 port and a female M6x1.0 rod thread, with a 25 mm maximum standard stroke.
This model is no longer in production. The current drop-in is the ATE20X25 (swap the P for an E), which matches the same 20 mm bore, 25 mm stroke and force class in the ISO 21287 family. Confirm the ISO 21287 mounting dimensions against your fixture before swapping, and keep in mind the magnet on this unit came from the -S option code.
Request a Quote for the ATE20X25S
Send us the quantity and destination. We confirm price, stock and lead time on the ATE20X25S replacement — usually within 7-8 hours.