This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ATE20X20S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ATE20X20S 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 ATP20X20S
The AirTAC Airtac ATP Single Acting Port Compact Cylinder ATP20X20S is a single acting, pull (spring return) DIN-standard tight/compact air cylinder with a Ø20mm bore and 20mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ATE20X20S (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ20 mm
- Stroke20 mm
- Port sizeM5×0.8
- Acting typeSingle acting, pull (spring return)
- Rod threadM6×1.0
- StatusDiscontinued → ATE20X20S
- 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 ATP20X20S
This is a single acting pull cylinder: an internal spring extends the rod and compressed air retracts it, so the part is normally out at rest and returns to the extended home position if air is lost. The 20 mm bore delivers 88.1 N of pull at 0.5 MPa (135.2 N at 0.7 MPa), already net of the return spring, and it needs at least 0.2 MPa to overcome the spring. ATP20X20S is discontinued; the current-production drop-in is the ATE20X20 in the same bore, stroke and force class.
The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight test fixtures and small assembly heads where a full-length body cannot. The -S code on this model means the magnet is fitted, so CMSE or DMSE reed and solid-state switches can be clamped straight onto the hard-anodized aluminium body. At 0.5 MPa the pull equals roughly 9 kgf, so with a 2:1 margin plan on lifting about 4 kg vertically, and treat about 53 N as the usable working force.
Airtac ATP Single Acting Port Compact Cylinder ATP20X20S Technical Specifications
| Model | Airtac ATP Single Acting Port Compact Cylinder ATP20X20S |
|---|---|
| Series | ATP DIN compact cylinder (discontinued) |
| Replacement | ATE20X20S |
| Bore size | Ø20 mm |
| Stroke | 20 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 ATE20X20S (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 ATP20X20S
| ATP | DIN compact cylinder (single-acting pull, spring-return, discontinued). |
|---|---|
| 20 | Bore size in mm. |
| ×20 | 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 ATP20X20S Is Used
Pickhead lift on a small assembly cell
The spring lifts a 3 kg vacuum pickhead to its up position at rest; 0.5 MPa air retracts it with 88.1 N of pull, and the fitted magnet triggers a DMSE switch to confirm the down stroke.
Spring-out interlock gate on a packaging machine
Air loss pushes the guard latch to its safe extended position automatically; the 20 mm stroke is enough for a latch pin, and the CMSE switch reports gate state to the PLC.
Sample probe return on a lab autosampler
The spring withdraws the probe to home between cycles, with 135.2 N of pull at 0.7 MPa for a snappy retract, and the M5x0.8 port keeps tubing runs compact inside the enclosure.
Replacing the Airtac ATP Single Acting Port Compact Cylinder ATP20X20S with the ATE20X20S
Size down to the 16 mm bore (53.3 N pull at 0.5 MPa) if the load is a light gate or sensor flag, or step up to the 25 mm bore (170.9 N) when the 88.1 N of this bore leaves no margin. Because the spring only returns the rod to its extended home, this cylinder will not hold a mid-stroke position - add a external stop or switch to a different action if holding is required. FA/FB flange, LB foot and CA/CB clevis mounts carry over to the ATE20X20, and the fitted -S magnet works with CMSE / DMSE switches. Confirm the ISO 21287 mounting dimensions of the ATE20X20 before swapping, since this DIN-standard body is no longer produced.
Replacement checklist
- ✓ Current-production ACE → ATE20X20S
- ✓ 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 ATP20X20S FAQ
The quoted figures are net of the return spring: 88.1 N at 0.5 MPa and 135.2 N at 0.7 MPa for the 20 mm bore. At least 0.2 MPa is needed to beat the spring and retract the rod. Operating range is 0.2-1.0 MPa (28-145 psi), proof pressure 1.5 MPa (215 psi), speed 50-500 mm/s, temperature -20 to +70 C, air filtered to 40 um. The rod is 10 mm with an M6x1.0 female thread, the port is M5x0.8, and fixed TPU bumpers sit at both ends.
Order the ATE20X20, the current-production ISO 21287 successor: swap the P for an E and you get the same 20 mm bore, 20 mm stroke and force class in a short compact body. It accepts the same FA/FB flange, LB foot and CA/CB clevis mounting family and the CMSE / DMSE switch range, but confirm the ISO 21287 mounting dimensions against your fixture before swapping, because the ATP was built to a DIN-standard compact pattern.
Request a Quote for the ATE20X20S
Send us the quantity and destination. We confirm price, stock and lead time on the ATE20X20S replacement — usually within 7-8 hours.