This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ASE63X20B — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ASE63X20B 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.

The AirTAC Airtac ASP Single Acting Guided Compact Cylinder ASP63X20B is a single acting, push (spring return) DIN-standard tight/compact air cylinder with a Ø63mm bore and 20mm stroke, 1/8" air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ASE63X20B (ISO 21287 ACE), in the same bore, stroke and force class.
A single acting push cylinder with spring return, the ASP63X20B uses one air line to extend its 16 mm rod while an internal spring retracts it to the normally retracted home position. At 0.5 MPa it delivers 1420.5 N of push, already net of the spring, rising to 2044 N at 0.7 MPa, and it starts working from just 0.2 MPa. The hard-anodized aluminium body follows the ISO 21287 short format, saving roughly 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into cramped clamping fixtures and machine frames.
This 63 mm unit is discontinued; the current-production drop-in is the ASE63X20 (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 model is DIN-standard. The rod end carries a male thread (the B code) and the air port is 1/8". In practice, keep real work to about 852 N at 0.5 MPa, which is roughly 87 kg of usable vertical lift with margin - enough to press or lift a 70 kg die or fixture reliably. A fixed TPU bumper at each end decelerates the rod; speed range is 50-500 mm/s.
| Model | Airtac ASP Single Acting Guided Compact Cylinder ASP63X20B |
|---|---|
| Series | ASP DIN compact cylinder (discontinued) |
| Replacement | ASE63X20B |
| Bore size | Ø63 mm |
| Stroke | 20 mm |
| Acting type | Single acting, push (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 ASE63X20B (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.
| Pressure | Push force (spring return) |
|---|---|
| 0.5 MPa | 1420.5 N |
| 0.7 MPa | 2044.0 N |
Single-acting push: air extends the rod; the return spring retracts it. Forces already net the spring; minimum working pressure is 0.2 MPa.
| ASP | DIN compact cylinder (single-acting push, spring-return, discontinued). |
|---|---|
| 63 | 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).
The 1420.5 N push at 0.5 MPa crimps terminals and small inserts on an electronics assembly bench, with the spring return clearing the part each cycle.
The ISO 21287 short body fits a milling fixture where a full-length ISO 15552 profile cylinder would overhang, clamping a steel bracket with about 852 N of usable force.
A single air line extends the rod to release a 70 kg gate on warehouse equipment; on power loss the spring returns it to the locked home position.
Size against neighbours: the 50 mm bore gives 875.5 N at 0.5 MPa while the 80 mm bore reaches 2316.2 N, so choose this 63 mm model when your clamp or press needs the 1420.5 N class. If you need position sensing, order the -S code to add the optional magnet for CMSE / DMSE switches - without -S there is no magnet and no switch can be fitted. FA/FB flange, LB foot and CA/CB clevis mountings bolt straight onto the ISO 21287 face. Note that on air loss the spring retracts the rod; it does not hold a mid-stroke position. Replacement: ASE63X20.
Replacement checklist
Push is 1420.5 N at 0.5 MPa and 2044 N at 0.7 MPa, both already net of the return spring. Minimum working pressure is 0.2 MPa (28 psi) to overcome the spring; operating range is 0.2-1.0 MPa (28-145 psi) with a 1.5 MPa (215 psi) proof pressure. Speed is 50-500 mm/s, temperature -20 to +70 C, and the air must be filtered to 40 um. The 1/8" port serves the 63 mm bore, and the rod end has a male thread (B code).
Order the ASE63X20, the current-production ISO 21287 successor: swap the P for an E and you get the same bore, stroke and force class in a matching short body. Because this model is DIN-standard, confirm the ISO 21287 mounting dimensions before swapping. If you also need position feedback, specify the -S magnet code so CMSE / DMSE switches can be used.
Send us the quantity and destination. We confirm price, stock and lead time on the ASE63X20B replacement — usually within 7-8 hours.