This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACEJ20X160-20B — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACEJ20X160-20B 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 ACPJ20X160-20B is a double acting, adjustable stroke DIN-standard tight/compact air cylinder with a Ø20mm bore and 160mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACEJ20X160-20B (ISO 21287 ACE), in the same bore, stroke and force class.
A double acting compact cylinder with an adjustable extend stroke, the ACPJ20X160-20B uses a 20 mm bore and a 160 mm stroke trimmed by a stop screw within a 20 mm window, so the working range is 140-160 mm. At 0.5 MPa it pushes 157.1 N and pulls 117.8 N; at 0.7 MPa that rises to 219.9 N push and 164.9 N pull, with a theoretical ceiling of 32 kgf at 1.0 MPa. In practice plan on roughly 94 N of real work at 0.5 MPa, which lifts about 8 kg vertically with a 2:1 margin. The 160 mm stroke exceeds the 100 mm maximum standard stroke for this bore, so it is a made-to-order item.
The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, letting it sit inside tight guarding on long-travel slides. A hard-anodized aluminium body carries an S45C hard-chrome rod, fixed TPU bumpers sit at both ends, and the male rod thread (B code) bolts straight to I/Y knuckles. No magnet is fitted on this version, so CMSE or DMSE switches cannot be used unless the -S magnet variant is ordered instead. Note this model is discontinued: the current-production replacement is ACEJ20X160, and buyers should confirm ISO 21287 mounting dimensions before swapping.
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ20X160-20B |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ20X160-20B |
| Bore size | Ø20 mm |
| Stroke | 160 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 ACEJ20X160-20B (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 ACEJ20X160-20B 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. |
| ×160 | Stroke length in mm. |
| -20 | 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 157.1 N push at 0.5 MPa nudges off-spec bottles off a narrow conveyor lane, and the 140-160 mm adjustable range lets technicians dial the throw without re-plumbing.
About 8 kg of vertical lift capability with a 2:1 margin suits clamping light aluminium brackets, and the male rod thread (B) takes a knuckle directly.
The long 160 mm made-to-order stroke reaches deep into a case to fold flaps, while the short body keeps the envelope inside tight machine framing.
Size up or down by force: the 16 mm bore delivers 100.5 N push at 0.5 MPa, while the 20 mm bore here gives 157.1 N push and 117.8 N pull at the same pressure. If 157 N is marginal, step to the next force class rather than over-pressurizing. The stop screw only shortens the extend stroke within the 20 mm window and is a mechanical end stop, not a mid-stroke lock, so the rod still drifts if air is lost. FA/FB flanges and LB feet match the ISO 21287 face. This unit is discontinued; order ACEJ20X160 as the drop-in successor and verify mounting dimensions.
Replacement checklist
At 0.5 MPa it pushes 157.1 N and pulls 117.8 N; at 0.7 MPa it pushes 219.9 N and pulls 164.9 N; theoretical maximum is 32 kgf at 1.0 MPa. The -20 code gives a 20 mm adjustment window, so the 160 mm extend stroke can be trimmed to any length between 140 and 160 mm. Operating pressure is 0.15-1.0 MPa (22-145 psi), speed 30-500 mm/s, and the 160 mm stroke is a non-standard, made-to-order length since the bore 20 standard maximum is 100 mm.
An external stop screw mechanically limits the extend stroke inside the ordered 20 mm window; it shortens the stroke only and acts as an end stop, not a load-holding brake, so the piston can still drift on air loss. The ACPJ family is discontinued. The current-production replacement is ACEJ20X160, the same bore, stroke and force class in the ISO 21287 ACE series - confirm the ISO 21287 mounting dimensions before swapping. This version has no magnet; the -S code adds one for CMSE / DMSE switches.
Send us the quantity and destination. We confirm price, stock and lead time on the ACEJ20X160-20B replacement — usually within 7-8 hours.