This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACE50X90SB, 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 ACP50X90SB
The AirTAC ACP Compact Cylinder ACP50X90SB 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 ACE50X90SB (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 → ACE50X90SB
- 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 ACP50X90SB
A double acting compact cylinder in the DIN-standard ACP series, the ACP50X90SB pairs a 50 mm bore with a 90 mm stroke and a male-threaded 16 mm rod. At 0.5 MPa it pushes 981.7 N and pulls 881.2 N; at 0.7 MPa those rise to 1374.4 N and 1233.7 N, with a theoretical ceiling of 200.2 kgf at 1.0 MPa. The hard-anodized aluminium body and S45C hard-chrome rod run on 0.15-1.0 MPa (22-145 psi) air filtered to 40 um, at speeds of 30-500 mm/s.
Because the short ISO 21287-class body saves roughly 50% of the mounting length of an ISO 15552 profile cylinder, this 90 mm stroke unit slots into tight fixtures and guarding where a full-length body cannot. The -S code on this model means the magnet is fitted, so CMSE or DMSE reed and solid-state switches mount directly on the tube. Note that this model is discontinued: the current direct is the ACE50X90, and buyers should confirm ISO 21287 mounting dimensions before swapping.
Airtac ACP Compact Cylinder ACP50X90SB Technical Specifications
| Model | Airtac ACP Compact Cylinder ACP50X90SB |
|---|---|
| Series | ACP DIN compact cylinder (discontinued) |
| Replacement | ACE50X90SB |
| 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 ACE50X90SB (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 ACE50X90SB 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 ACP50X90SB
| 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 ACP50X90SB Is Used
Clamp fixture on a CNC milling pallet
About 589 N of usable push at 0.5 MPa clamps aluminium housings securely, and the short body fits inside the fixture footprint.
Carton press-down station
The 90 mm stroke presses flaps closed on a packaging line running 30-500 mm/s, with CMSE switches flagging end positions.
Replacing the Airtac ACP Compact Cylinder ACP50X90SB with the ACE50X90SB
At 981.7 N push at 0.5 MPa, the 50 mm bore sits between the 40 mm (628.3 N) and 63 mm (1558.6 N) options, so step down for lighter clamping or up for heavier presses. A plain cylinder of this type drifts when air is lost, so add a rod lock or pilot check valve if the 90 mm stroke must hold a load. FA/FB flange, LB foot and CA/CB clevis mountings plus the male rod thread suit most fixtures, and the fitted -S magnet accepts CMSE / DMSE switches. Since this model is discontinued, order the ACE50X90 as the current-production replacement and verify ISO 21287 mounting dimensions.
Replacement checklist
- ✓ Current-production ACE → ACE50X90SB
- ✓ 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 ACP50X90SB 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. The theoretical maximum is 200.2 kgf at 1.0 MPa. It is double acting with a 50 mm bore, 90 mm stroke, 16 mm rod, 1/8" ports and a male rod thread. The model is discontinued; the ACE50X90 is the current replacement.
The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, and FA/FB flange, LB foot and CA/CB clevis mountings bolt to standard fixtures. This -S version carries the optional magnet, so CMSE or DMSE reed and solid-state switches can be fitted to detect rod position.
Related AirTAC ACE Cylinders
Request a Quote for the ACE50X90SB
Send us the quantity and destination. We confirm price, stock and lead time on the ACE50X90SB replacement — usually within 7-8 hours.