This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACE50X90, the same code under the new prefix. 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 ACP50X90
The AirTAC ACP Compact Cylinder ACP50X90 is a double acting DIN-standard tight/compact air cylinder with a Ø50mm bore and 90mm stroke, 1/8" air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACE50X90 (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ50 mm
- Stroke90 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM10×1.5
- StatusDiscontinued → ACE50X90
- 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 ACP50X90
The ACP50X90 is a double acting compact cylinder in the DIN-standard ACP series, with a 50 mm bore and 90 mm stroke on a 16 mm hard-chrome rod. At 0.5 MPa it pushes 981.7 N and pulls 881.2 N, rising to 1374.4 N on the extend stroke at 0.7 MPa. Its hard-anodized aluminium body with threaded aluminium covers is an ISO 21287 class short body, so it takes up roughly 50% less mounting length than an ISO 15552 profile cylinder - useful inside tight machine frames and guarding. Air supply is 0.15-1.0 MPa (22-145 psi), speed range 30-500 mm/s, with a fixed TPU bumper at each end.
Note that this model is discontinued; the current-production successor is the ACE50X90 (ISO 21287), so confirm mounting dimensions before swapping. The magnet is not fitted on this code - order the -S variant if you need CMSE / DMSE switch detection.
Airtac ACP Compact Cylinder ACP50X90 Technical Specifications
| Model | Airtac ACP Compact Cylinder ACP50X90 |
|---|---|
| Series | ACP DIN compact cylinder (discontinued) |
| Replacement | ACE50X90 |
| Bore size | Ø50 mm |
| Stroke | 90 mm |
| Acting type | Double acting |
| Port size | 1/8" |
| Rod thread | M10×1.5 |
| 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 250 mm |
Specifications follow the official AirTAC ACP datasheet (now discontinued). The ACE50X90 (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 | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 881 N |
| 0.7 MPa | 1374 N | 1234 N |
| Max (@1.0 MPa) | 200 kgf | |
The ACE50X90 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 ACP50X90
| ACP | DIN compact cylinder (double-acting, discontinued). |
|---|---|
| 50 | 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 (double rod, adjustable stroke).
Where the Airtac ACP Compact Cylinder ACP50X90 Is Used
Clamping on CNC fixtures
The 981.7 N push at 0.5 MPa clamps aluminium or steel workpieces in machining fixtures, and the short body fits where fixture space above the table is limited.
Packaging pusher bars
With 90 mm of stroke and 30-500 mm/s speed, the cylinder pushes cartons or trays sideways on a conveyor lane, rejecting off-spec packs at the photo-eye.
Press-fit and stamping assist
Around 60 kgf of usable working force at 0.5 MPa suits light press-fit, marking and forming operations on small brackets and terminals.
Replacing the Airtac ACP Compact Cylinder ACP50X90 with the ACE50X90
At 50 mm bore you sit mid-range: a 40 mm bore gives 628.3 N push at 0.5 MPa, while a 63 mm bore reaches 1558.6 N if the load grows. The 90 mm stroke is well inside the 250 mm maximum standard stroke for this bore, so it is a catalogue item, not a made-to-order build. Choose the female M10x1.5 rod thread as coded here, or the B code for a male thread; FA/FB flange, LB foot and CA/CB clevis mountings bolt to the same face. Since a plain cylinder drifts when air is lost, add a rod lock or pilot check valve for held loads. Order the ACE50X90 as the current direct replacement.
Replacement checklist
- ✓ Current-production ACE → ACE50X90
- ✓ 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 ACP50X90 FAQ
At 0.5 MPa it pushes 981.7 N and pulls 881.2 N; at 0.7 MPa, 1374.4 N push and 1233.7 N pull; theoretical maximum is 200.2 kgf at 1.0 MPa. It is double acting, 50 mm bore, 90 mm stroke, 16 mm rod, 1/8" PT port, female M10x1.5 rod thread, operating pressure 0.15-1.0 MPa (22-145 psi), speed 30-500 mm/s, temperature -20 to +70 C, with fixed TPU bumpers at both ends.
Order the ACE50X90, 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 the ACP was built to a DIN standard, confirm the ISO 21287 mounting dimensions against your fixture before swapping. FA/FB flange, LB foot and CA/CB clevis options carry over, and the -S magnet code enables CMSE / DMSE switches on the ACE equivalent.
Request a Quote for the ACE50X90
Send us the quantity and destination. We confirm price, stock and lead time on the ACE50X90 replacement — usually within 7-8 hours.