This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACEJ16X90-50SB — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACEJ16X90-50SB 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 ACPJ16X90-50SB 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 ACEJ16X90-50SB (ISO 21287 ACE), in the same bore, stroke and force class.
A double acting compact cylinder with an adjustable extend stroke, the ACPJ16X90-50SB carries a 16 mm bore and a 90 mm stroke that a stop screw can trim by up to 50 mm, giving a usable range of 40-90 mm. Push force is 100.5 N and pull is 75.4 N at 0.5 MPa, rising to 140.7 N at 0.7 MPa. The 90 mm stroke is longer than the 75 mm standard limit for this bore, so it is a made-to-order build. This model is discontinued; the current-production replacement is the ACEJ16X90, and buyers should confirm ISO 21287 mounting dimensions before swapping, since the ACPJ follows the DIN-standard footprint.
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 will not fit. The -S code on this model means the magnet is fitted, so CMSE or DMSE reed and solid-state switches can be clamped straight onto the body for end-of-stroke signalling. A practical sizing note: at 0.5 MPa about 60 N of the push force is realistically available for work, which corresponds to lifting roughly 3 kg vertically with a 2:1 margin. A fixed TPU bumper sits at each end, and speed runs 30-500 mm/s across a 0.15-1.0 MPa (22-145 psi) supply.
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ16X90-50SB |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ16X90-50SB |
| 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 ACEJ16X90-50SB (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 ACEJ16X90-50SB 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. |
| -50 | 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 40-90 mm adjustable range lets one cylinder serve several fixture heights, with the 100.5 N push at 0.5 MPa suiting light clamps on aluminium workpieces.
With the -S magnet fitted, CMSE or DMSE switches confirm extend and retract on small gantry pick heads handling parts up to about 3 kg vertically.
The short body tucks behind guarding, and the trimmed stroke deflects small cartons at 30-500 mm/s without occupying the length of a full-profile cylinder.
Compare both neighbours before committing: the 12 mm bore pushes 56.5 N at 0.5 MPa and the 20 mm bore reaches 157.1 N, so this 16 mm unit at 100.5 N sits mid-range. If the load only needs a shorter travel, a 75 mm standard stroke avoids the made-to-order lead time of this 90 mm build. The male rod thread (B code) suits I/Y knuckles, and FA flange or LB foot mounts bolt to the ISO 21287 face. The stop screw is a mechanical end stop only - on air loss the piston drifts, so do not treat it as a load-holding lock. Order the ACEJ16X90 as the current drop-in successor.
Replacement checklist
At 0.5 MPa it pushes 100.5 N and pulls 75.4 N; at 0.7 MPa push is 140.7 N and pull 105.6 N; theoretical maximum is 20.5 kgf at 1.0 MPa. It is double acting with a 16 mm bore, 90 mm stroke adjustable down to 40 mm, M5x0.8 ports, a 8 mm rod with male thread, 0.15-1.0 MPa (22-145 psi) operating pressure and 30-500 mm/s speed. The 90 mm stroke is non-standard for this bore and made to order.
The ACPJ family is discontinued. The current-production replacement is the ACEJ16X90, which matches the same bore, stroke and force class in the ISO 21287 short-body format. Before swapping, confirm the ISO 21287 mounting dimensions against your fixture, because the ACPJ was built to the DIN-standard footprint. This unit already carries the optional -S magnet, so CMSE / DMSE switch signalling carries over.
Send us the quantity and destination. We confirm price, stock and lead time on the ACEJ16X90-50SB replacement — usually within 7-8 hours.