This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACE40X90, 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 ACP40X90
The AirTAC ACP Compact Cylinder ACP40X90 is a double acting DIN-standard tight/compact air cylinder with a Ø40mm bore and 90mm stroke, 1/8" air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACE40X90 (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ40 mm
- Stroke90 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM8×1.25
- StatusDiscontinued → ACE40X90
- 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 ACP40X90
A double acting compact cylinder with a 40 mm bore and 90 mm stroke, the ACP40X90 pushes 628.3 N and pulls 571.8 N at 0.5 MPa, rising to 879.6 N on the extend stroke at 0.7 MPa. Its hard-anodized aluminium body and S45C hard-chrome rod run on filtered air at 0.15-1.0 MPa (22-145 psi) with speeds of 30-500 mm/s, and a fixed TPU bumper sits at each end of the stroke.
The short ISO 21287-class body cuts roughly 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight jig plates and guarding where a full-length body cannot. Note that this model is discontinued: the current-production direct is the ACE40X90, same bore, stroke and force class, so confirm ISO 21287 mounting dimensions before swapping.
Airtac ACP Compact Cylinder ACP40X90 Technical Specifications
| Model | Airtac ACP Compact Cylinder ACP40X90 |
|---|---|
| Series | ACP DIN compact cylinder (discontinued) |
| Replacement | ACE40X90 |
| Bore size | Ø40 mm |
| Stroke | 90 mm |
| Acting type | Double acting |
| Port size | 1/8" |
| Rod thread | M8×1.25 |
| 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 200 mm |
Specifications follow the official AirTAC ACP datasheet (now discontinued). The ACE40X90 (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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 572 N |
| 0.7 MPa | 880 N | 800 N |
| Max (@1.0 MPa) | 128 kgf | |
The ACE40X90 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 ACP40X90
| ACP | DIN compact cylinder (double-acting, discontinued). |
|---|---|
| 40 | 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 ACP40X90 Is Used
CNC fixture clamping
With 628.3 N of push at 0.5 MPa, the ACP40X90 clamps aluminium housings in a milling fixture; the short body fits inside the closed guard where a full-length profile cylinder would collide with the spindle cover.
Packaging line pusher
Mounted on an LB foot bracket, the 90 mm stroke diverts cartons across a conveyor lane at 30-500 mm/s, and the fixed TPU bumpers soften the ends of each divert cycle.
Pallet-stacker gate latch
The 40 mm bore develops enough force to throw a heavy safety-gate latch on a warehouse forklift; plan on about 32 kg of vertical lift equivalent when matching the latch mass.
Replacing the Airtac ACP Compact Cylinder ACP40X90 with the ACE40X90
At 628.3 N push at 0.5 MPa, the 40 mm bore sits between the 32 mm (402.1 N) and 50 mm (981.7 N) sizes - step down when the load is under about 240 N, step up for heavy clamping. The 90 mm stroke is within the 200 mm standard range for this bore. The rod end is female M8x1.25 and the port is 1/8" PT; FA/FB flange, LB foot and CA/CB clevis mountings bolt to the same face. A plain barrel drifts when air is removed, so add a rod lock or pilot check valve for held loads. This model is discontinued - order the ACE40X90 as the current direct and verify the ISO 21287 mounting dimensions.
Replacement checklist
- ✓ Current-production ACE → ACE40X90
- ✓ 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 ACP40X90 FAQ
At 0.5 MPa it pushes 628.3 N and pulls 571.8 N; at 0.7 MPa those rise to 879.6 N push and 800.5 N pull. The theoretical maximum at 1.0 MPa is 128.1 kgf. Operating range is 0.15-1.0 MPa (22-145 psi) with a 1.5 MPa (215 psi) proof pressure, and speed spans 30-500 mm/s.
Sensors need the optional -S magnet code; this ACP40X90 has no magnet, so no CMSE or DMSE switch can be read until you order the -S variant. The ACP family itself is discontinued - the current-production replacement is the ACE40X90, a direct in the same bore, stroke and force class. Confirm the ISO 21287 mounting dimensions against your fixture before swapping.
Request a Quote for the ACE40X90
Send us the quantity and destination. We confirm price, stock and lead time on the ACE40X90 replacement — usually within 7-8 hours.