This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACE20X25SB — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACE20X25SB 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 ACP20X25SB
The AirTAC Airtac ACP Compact Cylinder ACP20X25SB is a double acting DIN-standard tight/compact air cylinder with a Ø20mm bore and 25mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACE20X25SB (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ20 mm
- Stroke25 mm
- Port sizeM5×0.8
- Acting typeDouble acting
- Rod threadM6×1.0
- StatusDiscontinued → ACE20X25SB
- 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 ACP20X25SB
A double acting compact cylinder with a 20 mm bore and 25 mm stroke, the ACP20X25SB pushes with 157.1 N and pulls with 117.8 N at 0.5 MPa, rising to 219.9 N on the extend stroke at 0.7 MPa. The B code gives a male rod thread on the 10 mm rod, and the S code means the optional -S magnet is fitted, so CMSE or DMSE reed and solid-state switches can be clipped on for end-of-stroke sensing. Running on 0.15-1.0 MPa (22-145 psi) with a 30-500 mm/s speed band, it ends its stroke on a fixed TPU bumper at each end.
The short ISO 21287-class body cuts about 50% of the mounting length of an ISO 15552 profile cylinder, which is why this bore fits shallow clamping fixtures and sliding gantries. In practice the 157.1 N push translates to roughly 16 kg of theoretical vertical lift, so plan on lifting about 8 kg with a 2:1 margin. Note that this model is discontinued: the current-production successor is ACE20X25, which matches the same bore, stroke and force class - confirm the ISO 21287 mounting dimensions before swapping.
Airtac ACP Compact Cylinder ACP20X25SB Technical Specifications
| Model | Airtac ACP Compact Cylinder ACP20X25SB |
|---|---|
| Series | ACP DIN compact cylinder (discontinued) |
| Replacement | ACE20X25SB |
| Bore size | Ø20 mm |
| Stroke | 25 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 ACE20X25SB (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 ACE20X25SB 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 ACP20X25SB
| ACP | DIN compact cylinder (double-acting, discontinued). |
|---|---|
| 20 | Bore size in mm. |
| ×25 | 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 ACP20X25SB Is Used
Small-part press fitting
The 157.1 N push at 0.5 MPa seats dowel pins and small bearings into aluminium housings on an electronics assembly bench, with the 25 mm stroke covering short press travel.
Gantry pick-and-place
With the fitted -S magnet driving CMSE or DMSE switches, the cylinder confirms extend and retract on a light gantry that lifts about 8 kg vertically with a 2:1 margin.
Fixture clamping in tight cells
The short body, roughly half the length of an ISO 15552 profile cylinder, clamps machined brackets inside guarded CNC cells where a full-length cylinder will not fit.
Replacing the Airtac ACP Compact Cylinder ACP20X25SB with the ACE20X25SB
At 157.1 N push and 117.8 N pull at 0.5 MPa, bore 20 sits between the 16 bore (100.5 N push) and the 25 bore (245.4 N push), so step up to 25 mm if your fixture needs more margin or down to 16 mm for lighter clamps. Because a plain cylinder drifts when air is lost, add a rod lock or pilot check valve if the load must stay put. The male rod thread suits I/Y rod knuckles, and FA/FB flange, LB foot or CA/CB clevis mounts bolt to the same face. For new builds, order ACE20X25 instead - ACP20X25SB is discontinued.
Replacement checklist
- ✓ Current-production ACE → ACE20X25SB
- ✓ 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 ACP20X25SB FAQ
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 push and 164.9 N pull, with a theoretical maximum of 32 kgf at 1.0 MPa. The model is discontinued, and the current drop-in is ACE20X25 - same 20 mm bore, 25 mm stroke and force class. Confirm the ISO 21287 mounting dimensions before swapping, since the ACP follows a DIN-standard footprint.
It is a compact double-acting cylinder with a hard-anodized aluminium body, a 10 mm S45C hard-chrome rod with male thread, an M5x0.8 port and fixed TPU bumpers at both ends that simply decelerate the stroke. The S code means the optional -S magnet is fitted on this unit, so CMSE or DMSE reed or solid-state switches can be mounted for end-of-stroke detection.
Related AirTAC ACE Cylinders
Request a Quote for the ACE20X25SB
Send us the quantity and destination. We confirm price, stock and lead time on the ACE20X25SB replacement — usually within 7-8 hours.