This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACE20X90S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACE20X90S 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 ACP Compact Cylinder ACP20X90S
The AirTAC Airtac ACP Compact Cylinder ACP20X90S is a double acting DIN-standard tight/compact air cylinder with a Ø20mm bore and 90mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACE20X90S (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ20 mm
- Stroke90 mm
- Port sizeM5×0.8
- Acting typeDouble acting
- Rod threadM6×1.0
- StatusDiscontinued → ACE20X90S
- 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 ACP Compact Cylinder ACP20X90S
The ACP20X90S is a double acting DIN-standard compact cylinder with a 20 mm bore and 90 mm stroke, fitted with the optional -S magnet so CMSE or DMSE reed and solid-state switches can be mounted directly on the hard-anodized aluminium body. At 0.5 MPa it pushes 157.1 N and pulls 117.8 N, rising to 219.9 N push at 0.7 MPa, with a theoretical maximum of 32 kgf at 1.0 MPa. The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, which is why it fits so well inside sliding guards and tight jig frames.
For real-world sizing, treat roughly 0.6 of the push rating as usable, so about 94 N of actual work at 0.5 MPa - and with a 2:1 margin that is a vertical lift of around 8 kg, enough for small aluminium fixtures or plastic trays. The rod is 10 mm with a female M6x1.0 thread, the port is M5x0.8, and a fixed TPU bumper sits at both ends. Note this model is discontinued: the current-production drop-in is the ACE20X90, so confirm the ISO 21287 mounting dimensions before swapping.
Airtac ACP Compact Cylinder ACP20X90S Technical Specifications
| Model | Airtac ACP Compact Cylinder ACP20X90S |
|---|---|
| Series | ACP DIN compact cylinder (discontinued) |
| Replacement | ACE20X90S |
| Bore size | Ø20 mm |
| Stroke | 90 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 ACE20X90S (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 | 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 ACE20X90S produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac ACP Compact Cylinder ACP20X90S
| ACP | DIN compact cylinder (double-acting, discontinued). |
|---|---|
| 20 | Bore size in mm. |
| ×90 | 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 ACP Compact Cylinder ACP20X90S Is Used
Reject chute on a packaging line
The 90 mm stroke and built-in -S magnet let CMSE or DMSE switches confirm full extension before a 5-7 kg reject tray is tipped, well inside the 8 kg vertical-lift margin at 0.5 MPa.
Small fixture clamp on a CNC jig
With 157.1 N push at 0.5 MPa and a short body roughly 50% shorter than an ISO 15552 profile cylinder, this bore clamps brackets inside dense drilling fixtures without lengthening the jig.
Product pusher between conveyor frames
The compact aluminium body slides into the gap between conveyor side rails, using 117.8 N of pull force at 0.5 MPa to retract cartons off a transfer plate at up to 500 mm/s.
Replacing the Airtac ACP Compact Cylinder ACP20X90S with the ACE20X90S
At 157.1 N push at 0.5 MPa this 20 mm bore suits light clamping and sorting tasks; step down to the 16 mm bore (100.5 N) for smaller loads or up to the 25 mm bore (245.4 N) when you need more margin. Remember a plain unit drifts when air is lost, so add a rod lock or pilot check valve if the load must stay put. The -S magnet on this model pairs with CMSE / DMSE switches for end-of-stroke sensing, and FA/FB flange, LB foot or CA/CB clevis mountings bolt to the same face. Since the ACP20X90S is discontinued, order the ACE20X90 as the current replacement and verify the ISO 21287 mounting dimensions first.
Replacement checklist
- ✓ Current-production ACE → ACE20X90S
- ✓ Same bore / stroke / force class
- ✓ Confirm ISO 21287 mounting dimensions
- ✓ Port/thread type (PT / G)
- ✓ Add -S for magnet if you need sensors
Airtac ACP Compact Cylinder ACP20X90S FAQ
At 0.5 MPa it pushes 157.1 N and pulls 117.8 N; at 0.7 MPa that rises to 219.9 N push and 164.9 N pull, with a theoretical maximum of 32 kgf at 1.0 MPa. It is a double acting compact cylinder, 20 mm bore, 90 mm stroke, 10 mm rod with female M6x1.0 thread, M5x0.8 port, 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, with a fixed TPU bumper at both ends.
Order the ACE20X90, the current-production ISO 21287 successor: swap the P for an E and you get the same 20 mm bore, 90 mm stroke and force class in a matching short body. Because the ACP was built to the DIN standard, confirm the ISO 21287 mounting dimensions and the FA/FB, LB or CA/CB mounting interface before swapping. The ACE also accepts the optional -S magnet code for CMSE / DMSE switches, matching the sensing this model carries.
Request a Quote for the ACE20X90S
Send us the quantity and destination. We confirm price, stock and lead time on the ACE20X90S replacement — usually within 7-8 hours.