This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ATE50X20 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ATE50X20 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 ATP50X20
The AirTAC Airtac ATP Single Acting Port Compact Cylinder ATP50X20 is a single acting, pull (spring return) DIN-standard tight/compact air cylinder with a Ø50mm bore and 20mm stroke, 1/8" air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ATE50X20 (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ50 mm
- Stroke20 mm
- Port size1/8"
- Acting typeSingle acting, pull (spring return)
- Rod threadM10×1.5
- StatusDiscontinued → ATE50X20
- 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 ATP50X20
A single acting compact pull cylinder, the ATP50X20 uses an internal spring to hold the 16 mm rod extended and compressed air at 0.2 MPa or higher to retract it through a 20 mm stroke. Its 50 mm bore delivers 775 N of pull at 0.5 MPa and 1127.5 N at 0.7 MPa, both figures already net of the return spring, so what you see is what reaches the workpiece. The hard-anodized aluminium body with an S45C hard-chrome rod keeps the short ISO 21287-class footprint, saving roughly 50% of the mounting length of an ISO 15552 profile cylinder in tight jigs and guarding.
This model is discontinued and is no longer in production; the current drop-in is the ATE50X20 (swap the P for an E), which matches the same bore, stroke and force class - confirm the ISO 21287 mounting dimensions before swapping, since this unit is DIN-standard. Plan real work at about 465 N at 0.5 MPa, which corresponds to lifting roughly 39 kg vertically with a 2:1 margin. FA/FB flange, LB foot and CA/CB clevis brackets bolt to the mounting face, and the optional -S magnet code enables CMSE / DMSE switches; without -S there is no magnet fitted.
Airtac ATP Single Acting Port Compact Cylinder ATP50X20 Technical Specifications
| Model | Airtac ATP Single Acting Port Compact Cylinder ATP50X20 |
|---|---|
| Series | ATP DIN compact cylinder (discontinued) |
| Replacement | ATE50X20 |
| Bore size | Ø50 mm |
| Stroke | 20 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 bumper (both ends) |
| Max standard stroke | Up to 25 mm |
Specifications follow the official AirTAC ACP datasheet (now discontinued). The ATE50X20 (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 (Ø50mm)
| 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.
Model Code: Airtac ATP Single Acting Port Compact Cylinder ATP50X20
| ATP | DIN compact cylinder (single-acting pull, spring-return, discontinued). |
|---|---|
| 50 | 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 ATP50X20 Is Used
Spring-extended clamp on a CNC fixture
The spring keeps the clamp engaged on a machined aluminium housing even if air drops, and 775 N of pull at 0.5 MPa retracts the jaw for loading within the 20 mm stroke.
Fail-safe gate return on a packaging line
A spring-extended hold-down on a carton sealing station returns to its home position on air loss, retracting only while 0.2-1.0 MPa (28-145 psi) air is applied.
Lid lift-off in an electronics test rig
The 50 mm bore lifts about 39 kg vertically with margin, enough to raise a test fixture lid the short 20 mm distance before the operator swaps a PCB panel.
Replacing the Airtac ATP Single Acting Port Compact Cylinder ATP50X20 with the ATE50X20
Size against neighbours: the 40 mm bore pulls 500.3 N at 0.5 MPa, while the 63 mm bore reaches 1320 N, so the 50 mm sits in the middle for medium clamping or holding jobs. At 0.5 MPa treat about 465 N as usable work, and remember the spring returns the rod to extended on air loss rather than holding a mid-stroke position. Match FA/FB flange, LB foot or CA/CB clevis mounting to your fixture, add the -S code if CMSE / DMSE sensing is needed, and order the ATE50X20 as the current replacement for this discontinued model.
Replacement checklist
- ✓ Current-production ACE → ATE50X20
- ✓ 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 ATP50X20 FAQ
This 50 mm bore, 20 mm stroke pull cylinder gives 775 N at 0.5 MPa and 1127.5 N at 0.7 MPa, both net of the return spring. Minimum working pressure is 0.2 MPa to overcome the spring, with a proof pressure of 1.5 MPa (215 psi). For sizing, plan about 465 N of real work at 0.5 MPa - roughly a 39 kg vertical lift with a 2:1 margin. Speed range is 50-500 mm/s and the fluid must be air filtered to 40 um.
Order the ATE50X20, the current-production ISO 21287 successor: swap the P for an E and you get the same bore, stroke and force class in a short compact body. Because the ATP is DIN-standard, confirm the ISO 21287 mounting dimensions before the swap. Mounting options carry over (FA/FB flange, LB foot, CA/CB clevis), and if you need position sensing, the -S magnet code allows CMSE / DMSE switches on the replacement.
Request a Quote for the ATE50X20
Send us the quantity and destination. We confirm price, stock and lead time on the ATE50X20 replacement — usually within 7-8 hours.