This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACE20X50SB — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACE20X50SB 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 ACP20X50SB
The AirTAC Airtac ACP Compact Cylinder ACP20X50SB is a double acting DIN-standard tight/compact air cylinder with a Ø20mm bore and 50mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACE20X50SB (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ20 mm
- Stroke50 mm
- Port sizeM5×0.8
- Acting typeDouble acting
- Rod threadM6×1.0
- StatusDiscontinued → ACE20X50SB
- 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 ACP20X50SB
The ACP20X50SB is a double acting DIN-standard compact cylinder with a 20 mm bore and 50 mm stroke, delivered with the optional -S magnet already fitted so CMSE or DMSE reed and solid-state switches can be mounted directly on the hard-anodized aluminium body. The B code gives a male rod thread on the 10 mm S45C hard-chrome rod, and a fixed TPU bumper sits at each end. At 0.5 MPa it pushes 157.1 N and pulls 117.8 N, rising to 219.9 N push at 0.7 MPa.
Its short ISO 21287-class body saves roughly 50% of the mounting length of an ISO 15552 profile cylinder, which is why it fits tight jigs and guarding where a full-length body cannot. For real-world sizing, plan on about 94 N of usable push at 0.5 MPa, and expect it to lift roughly 8 kg vertically with a 2:1 margin. Note this model is discontinued: the current-production drop-in is ACE20X50, so confirm the ISO 21287 mounting dimensions before swapping.
Airtac ACP Compact Cylinder ACP20X50SB Technical Specifications
| Model | Airtac ACP Compact Cylinder ACP20X50SB |
|---|---|
| Series | ACP DIN compact cylinder (discontinued) |
| Replacement | ACE20X50SB |
| Bore size | Ø20 mm |
| Stroke | 50 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 ACE20X50SB (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 ACE20X50SB 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 ACP20X50SB
| ACP | DIN compact cylinder (double-acting, discontinued). |
|---|---|
| 20 | Bore size in mm. |
| ×50 | 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 ACP20X50SB Is Used
Small-part clamping on assembly fixtures
With 157.1 N push at 0.5 MPa, the 20 mm bore clamps brackets, terminals and small housings in electronics assembly jigs where the short body must fit between fixture plates.
Position-verified ejection on test benches
The fitted -S magnet lets a CMSE or DMSE switch confirm end-of-stroke on a 50 mm eject stroke, so the PLC knows every rejected PCB or connector actually cleared the nest.
Light vertical press-off of press-fit pins
Lifting about 8 kg vertically with a 2:1 margin, this cylinder presses dowel pins or bushings out of aluminium housings on a maintenance bench at up to 500 mm/s.
Replacing the Airtac ACP Compact Cylinder ACP20X50SB with the ACE20X50SB
At 20 mm bore this sits in the light clamping class: the 16 mm bore delivers 100.5 N push at 0.5 MPa while the 25 mm bore reaches 245.4 N, so step up if your part weight or clamp force exceeds the 157.1 N this model gives. The 50 mm stroke is well inside the 100 mm maximum standard stroke for bore 20, so no made-to-order length is needed. Because a plain cylinder drifts when air is lost, add a rod lock or pilot check valve if the load must stay put. FA/FB flange, LB foot and CA/CB clevis mounts bolt to the same face, and the -S magnet on this unit pairs with CMSE / DMSE switches. Order ACE20X50 as the current replacement.
Replacement checklist
- ✓ Current-production ACE → ACE20X50SB
- ✓ 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 ACP20X50SB FAQ
At 0.5 MPa it pushes 157.1 N and pulls 117.8 N; at 0.7 MPa push rises to 219.9 N and pull to 164.9 N. The theoretical maximum is 32 kgf at 1.0 MPa. Working pressure is 0.15-1.0 MPa (22-145 psi) with a 1.5 MPa (215 psi) proof rating, speed range 30-500 mm/s, and air filtered to 40 um. For sizing, treat about 94 N as the usable push at 0.5 MPa.
No - the ACP family is discontinued. The current-production drop-in is ACE20X50, which swaps the P for an E and matches the same 20 mm bore, 50 mm stroke and force class in an ISO 21287 short body. Because the ACP was built to a DIN standard, confirm the ISO 21287 mounting dimensions and the FA/FB, LB or CA/CB mounting points before you swap.
Related AirTAC ACE Cylinders
Request a Quote for the ACE20X50SB
Send us the quantity and destination. We confirm price, stock and lead time on the ACE20X50SB replacement — usually within 7-8 hours.