This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACE20X65S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACE20X65S 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 ACP Compact Cylinder ACP20X65S is a double acting DIN-standard tight/compact air cylinder with a Ø20mm bore and 65mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACE20X65S (ISO 21287 ACE), in the same bore, stroke and force class.
The ACP20X65S is a double acting DIN-standard compact cylinder with a 20 mm bore and 65 mm stroke, built on a hard-anodized aluminium body with an S45C hard-chrome piston rod and a fixed TPU bumper at each end. At 0.5 MPa it pushes 157.1 N and pulls 117.8 N; at 0.7 MPa those figures rise to 219.9 N and 164.9 N, with a theoretical maximum of 32 kgf at 1.0 MPa. 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 will not fit. The S in the code means the optional -S magnet is fitted, so CMSE or DMSE reed and solid-state switches can be mounted directly on the body.
For sizing, treat about 94 N (roughly 9.6 kgf) as the usable push force at 0.5 MPa instead of the full 157.1 N rating, and expect about 8 kg of vertical lift with a 2:1 margin. Note that a plain unit does not hold position when air is lost - the piston drifts - so add a rod lock or pilot check valve for held loads. This model is discontinued; the current-production drop-in is the ISO 21287 ACE20X65, which matches the same bore, stroke and force class. Confirm the ISO 21287 mounting dimensions before swapping, since the ACP was built to the DIN standard.
| Model | Airtac ACP Compact Cylinder ACP20X65S |
|---|---|
| Series | ACP DIN compact cylinder (discontinued) |
| Replacement | ACE20X65S |
| Bore size | Ø20 mm |
| Stroke | 65 mm |
| Acting type | Double acting |
| Port size | M5×0.8 |
| Rod thread | M6×1.0 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 500 mm/s |
| Cushion | Fixed bumper (both ends) |
| Max standard stroke | Up to 100 mm |
Specifications follow the official AirTAC ACP datasheet (now discontinued). The ACE20X65S (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 | Pull force |
|---|---|---|
| 0.5 MPa | 157 N | 118 N |
| 0.7 MPa | 220 N | 165 N |
| Max (@1.0 MPa) | 32 kgf | |
The ACE20X65S produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
| ACP | DIN compact cylinder (double-acting, discontinued). |
|---|---|
| 20 | Bore size in mm. |
| ×65 | 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 157.1 N push at 0.5 MPa (219.9 N at 0.7 MPa) suits pressing dowel pins or bushings into aluminium housings on electronics assembly benches, where the short body fits inside the press frame.
With the -S magnet fitted, CMSE or DMSE switches confirm full clamp on PCB test fixtures or connector jigs, and the 65 mm stroke clears loading space in a compact fixture plate.
At 30-500 mm/s the cylinder can kick small cartons or blisters between lanes on a pharmaceutical or food packaging line, with the fixed TPU bumper softening each end-of-stroke stop.
Pick the 20 mm bore when your load sits between the 16 mm class (100.5 N push at 0.5 MPa) and the 25 mm class (245.4 N push at 0.5 MPa) - the ACP20X65S delivers 157.1 N push and 117.8 N pull at 0.5 MPa. The 65 mm stroke sits inside the 100 mm maximum standard stroke for this bore, so it is a catalogue item rather than a made-to-order build. The female M6x1.0 rod thread and M5x0.8 ports suit small clamping fixtures, and the -S magnet already fitted accepts CMSE / DMSE switches for end-of-stroke sensing. Because the ACP line is discontinued, order the ACE20X65 as the current replacement and verify the ISO 21287 mounting footprint against your fixture first.
Replacement checklist
At 0.5 MPa it pushes 157.1 N and pulls 117.8 N; at 0.7 MPa push is 219.9 N and pull is 164.9 N; theoretical maximum is 32 kgf at 1.0 MPa. It is a double acting compact cylinder, 20 mm bore, 65 mm stroke, 10 mm rod with female M6x1.0 thread, M5x0.8 ports, operating pressure 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), speed 30-500 mm/s, temperature -20 to +70 C, air filtered to 40 um, fixed TPU bumper both ends. This model is discontinued - the replacement is ACE20X65.
The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it fits shallow fixtures and guarding. The S code on this model means the optional -S magnet is fitted, so CMSE reed or DMSE solid-state switches mount on the body for end-of-stroke signals. FA/FB flange, LB foot and CA/CB clevis mountings are available. Remember the bumper does not hold a load - use a rod lock or pilot check valve if the load must stay put when air is lost.
Send us the quantity and destination. We confirm price, stock and lead time on the ACE20X65S replacement — usually within 7-8 hours.