This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACEJ20X100-10 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACEJ20X100-10 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.

The AirTAC Airtac ACPJ Adjustable Compact Cylinder ACPJ20X100-10 is a double acting, adjustable stroke DIN-standard tight/compact air cylinder with a Ø20mm bore and 100mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACEJ20X100-10 (ISO 21287 ACE), in the same bore, stroke and force class.
The ACPJ20X100-10 is a double acting compact cylinder with an adjustable extend stroke: the -10 code gives a 10 mm stop-screw window, so the 100 mm stroke can be trimmed on site anywhere between 90 and 100 mm. At 0.5 MPa the 20 mm bore delivers 157.1 N push and 117.8 N pull, rising to 219.9 N push at 0.7 MPa, with a theoretical maximum of 32 kgf at 1.0 MPa. The short ISO 21287-class body saves roughly 50% of the mounting length of an ISO 15552 profile cylinder, which is why it slots into tight jigs and guarding where a full-length body cannot. Note that this model is discontinued; the current-production replacement is the ACEJ20X100, so confirm ISO 21287 mounting dimensions before swapping.
In practice, plan on about 94 N (roughly 9.6 kgf) of usable push at 0.5 MPa rather than the full rating, which means this cylinder lifts about 8 kg vertically with a 2:1 margin. The hard-anodized aluminium body carries an S45C hard-chrome rod, fixed TPU bumpers at both ends, and runs at 30-500 mm/s on air filtered to 40 um across 0.15-1.0 MPa (22-145 psi). This unit has no magnet fitted; the optional -S code adds one so CMSE / DMSE switches can be mounted. FA/FB flanges and LB feet bolt straight to the standard face.
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ20X100-10 |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ20X100-10 |
| Bore size | Ø20 mm |
| Stroke | 100 mm |
| Acting type | Double acting, adjustable stroke |
| 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 ACEJ20X100-10 (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.
| 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 ACEJ20X100-10 produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 20 | Bore size in mm. |
| ×100 | Stroke length in mm. |
| -10 | Adjustable stroke window (mm the extend stroke can be shortened on site). |
| 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).
A 10 mm stop window lets a jig builder dial the 100 mm stroke down to exactly 90-100 mm so the clamp nose lands on the part without re-machining the fixture.
With about 94 N of usable push at 0.5 MPa, the cylinder ejects lightweight cartons or blisters from a conveyor lane where a short body must fit under the guard.
Lifts about 8 kg vertically with a 2:1 margin, suiting pick-down stations for aluminium brackets or sensor housings inside compact Z-axes.
Size up or down by force: the 16 mm bore gives 100.5 N push at 0.5 MPa, while the next class up in the same family handles heavier clamping. The 100 mm stroke is the maximum standard stroke for this bore, so no made-to-order length is involved. Remember the stop screw only shortens the extend stroke - it is a mechanical end stop, not a mid-stroke lock, so the rod still drifts if air is lost. Choose the B code for a male rod thread instead of the standard female M6x1.0, add FA/FB or LB hardware to match the fixture, and order the -S variant if position sensing is planned. For new designs, specify the ACEJ20X100 instead, as this ACPJ version is discontinued.
Replacement checklist
Push is 157.1 N and pull 117.8 N at 0.5 MPa; at 0.7 MPa push reaches 219.9 N and pull 164.9 N, with a theoretical maximum of 32 kgf at 1.0 MPa. It is a 20 mm bore, 100 mm stroke double acting adjustable-stroke cylinder with a 10 mm stop window, M5x0.8 ports, female M6x1.0 rod thread, 30-500 mm/s speed range, 0.15-1.0 MPa (22-145 psi) operating pressure, 1.5 MPa (215 psi) proof pressure, -20 to +70 C temperature range and fixed TPU bumpers at both ends. The model is discontinued; the ACEJ20X100 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 flanges plus LB feet bolt directly to its standard face. Sensing is possible only if you order the optional -S magnet code - this version has no magnet, so no CMSE or DMSE switch can be mounted as supplied. Since the model is discontinued, confirm ISO 21287 mounting dimensions on the ACEJ20X100 before ordering a replacement.
Send us the quantity and destination. We confirm price, stock and lead time on the ACEJ20X100-10 replacement — usually within 7-8 hours.