This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACEJ16X90-40S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACEJ16X90-40S 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 ACPJ16X90-40S is a double acting, adjustable stroke DIN-standard tight/compact air cylinder with a Ø16mm bore and 90mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACEJ16X90-40S (ISO 21287 ACE), in the same bore, stroke and force class.
The ACPJ16X90-40S is a double acting compact cylinder with an adjustable extend stroke: a stop screw trims the 90 mm stroke by up to 40 mm, giving a usable range of 50-90 mm on site. Air pushes and pulls the 8 mm rod, delivering 100.5 N push and 75.4 N pull at 0.5 MPa, rising to 140.7 N at 0.7 MPa. The 90 mm stroke exceeds the 75 mm standard maximum for a 16 mm bore, so this unit is made to order.
Its short ISO 21287-class body saves roughly 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight jigs and guarding where a full-length body will not fit. At 0.5 MPa plan on about 60 N of real work (roughly 6 kg of vertical lift with a 2:1 margin), not the full 100.5 N rating. The -S code fits the magnet, so CMSE / DMSE switches can be mounted. Note: this model is discontinued; the current-production drop-in is the ACEJ16X90, and you should confirm ISO 21287 mounting dimensions before swapping.
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ16X90-40S |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ16X90-40S |
| Bore size | Ø16 mm |
| Stroke | 90 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | M5×0.8 |
| Rod thread | M4×0.7 |
| 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 75 mm |
Specifications follow the official AirTAC ACP datasheet (now discontinued). The ACEJ16X90-40S (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 | 101 N | 75 N |
| 0.7 MPa | 141 N | 106 N |
| Max (@1.0 MPa) | 21 kgf | |
The ACEJ16X90-40S 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). |
|---|---|
| 16 | Bore size in mm. |
| ×90 | Stroke length in mm. |
| -40 | 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).
The 50-90 mm adjustable range lets one cylinder serve several part sizes on a machining fixture, with about 60 N of usable clamp force at 0.5 MPa.
With the -S magnet fitted, a CMSE or DMSE switch confirms the rod has reached the trimmed end position before the next station cycles.
140.7 N push at 0.7 MPa is enough for light press work such as seating terminals or bushings, and the short body fits inside compact press heads.
Size both ways: the 12 mm bore gives 56.5 N push at 0.5 MPa, while the 20 mm bore reaches 157.1 N - step up if your part weight or friction load sits near the 60 N usable figure of this 16 mm cylinder. The adjuster is a mechanical end stop for the extend stroke only, not a mid-stroke lock, so the piston still drifts if air is lost. FA/FB flange and LB foot mountings plus I/Y rod knuckles bolt to the ISO 21287 face. This discontinued model is replaced by the ACEJ16X90 in the same bore, stroke and force class.
Replacement checklist
At 0.5 MPa it pushes 100.5 N and pulls 75.4 N; at 0.7 MPa it pushes 140.7 N and pulls 105.6 N; theoretical maximum is 20.5 kgf at 1.0 MPa. The -40 code gives a 40 mm adjustment window, so the 90 mm extend stroke can be trimmed anywhere in a 50-90 mm range. Operating pressure is 0.15-1.0 MPa (22-145 psi) and speed is 30-500 mm/s. The 90 mm stroke is a made-to-order length, since the standard maximum for a 16 mm bore is 75 mm.
It is a short-body compact cylinder with a hard-anodized aluminium body, an S45C hard-chrome rod and a fixed TPU bumper at both ends that decelerates only at the ends and never holds a load. The body saves about 50% of the mounting length of an ISO 15552 profile cylinder. This S-version carries the optional -S magnet, so CMSE / DMSE reed or solid-state switches can be mounted. The model is discontinued - the current drop-in is the ACEJ16X90; confirm ISO 21287 mounting dimensions before ordering.
Send us the quantity and destination. We confirm price, stock and lead time on the ACEJ16X90-40S replacement — usually within 7-8 hours.