This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACEJ16X90-50 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACEJ16X90-50 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 ACPJ16X90-50 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 ACEJ16X90-50 (ISO 21287 ACE), in the same bore, stroke and force class.
The ACPJ16X90-50 is a double acting compact cylinder with an adjustable extend stroke: a stop screw trims the 90 mm stroke by up to 50 mm, giving a usable range of 40-90 mm on site. At 0.5 MPa it pushes 100.5 N and pulls 75.4 N, rising to 140.7 N at 0.7 MPa. Its short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it fits into tight jigs and guarding where a full-length body will not. The 90 mm stroke exceeds the 75 mm standard maximum for bore 16, so this unit is made to order.
A rule of thumb for real work: plan on roughly 60 N of usable push at 0.5 MPa, which is about 6 kg of vertical lift with a 2:1 margin. The hard-anodized aluminium body carries a fixed TPU bumper at each end, and the female M4x0.7 rod thread takes standard I/Y knuckles. Note this model is discontinued; the current-production drop-in is the ACEJ16X90, so confirm ISO 21287 mounting dimensions before swapping.
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ16X90-50 |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ16X90-50 |
| 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 ACEJ16X90-50 (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 ACEJ16X90-50 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 trimmed stroke kicks light cartons off a conveyor lane, and the short body slots under a low guard rail where a full-length profile cylinder cannot.
About 6 kg of vertical working force seats vials or caps gently, and the stop screw lets technicians dial the press depth without changing the cylinder.
The LB foot mount bolts straight to the fixture plate, and the 50 mm adjustment window absorbs bracket thickness changes between part families.
Size both ways before ordering: the 12 mm bore gives 56.5 N push at 0.5 MPa if your load is lighter, while the 20 mm bore delivers 157.1 N if you need more force. This 16 mm model suits mid-range loads around 60 N of working push. The adjuster is a mechanical end stop for the extend stroke only - it does not hold a load if air is lost. Mounting is FA/FB flange or LB foot on the ISO 21287 face. If you need position sensing, order the -S variant with the optional magnet for CMSE / DMSE switches; this code has no magnet. Replacement: ACEJ16X90.
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. The theoretical maximum is 20.5 kgf at 1.0 MPa. Operating pressure is 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), speed 30-500 mm/s, and the port is M5x0.8. For real work, plan on about 60 N of push, roughly 6 kg of vertical lift with a 2:1 margin.
The -50 code is a 50 mm window: an external stop screw shortens the 90 mm extend stroke to any length down to 40 mm. It is a mechanical end stop, not a mid-stroke lock, so the rod still drifts if air is lost. A fixed TPU bumper decelerates at both ends. This model is discontinued; the current-production drop-in is the ACEJ16X90 (same bore, stroke and force class) - confirm the ISO 21287 mounting dimensions before swapping, since the ACP is DIN-standard.
Send us the quantity and destination. We confirm price, stock and lead time on the ACEJ16X90-50 replacement — usually within 7-8 hours.