This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACEJ20X160-20S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACEJ20X160-20S 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 ACPJ20X160-20S 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 ACEJ20X160-20S (ISO 21287 ACE), in the same bore, stroke and force class.
This ACPJ20X160-20S is a double acting, adjustable-stroke compact cylinder in the discontinued AirTAC ACPJ line. The 20 mm bore delivers 157.1 N push and 117.8 N pull at 0.5 MPa, rising to 219.9 N at 0.7 MPa, with a theoretical peak of 32 kgf at 1.0 MPa. The -20 code gives a 20 mm adjustment window: a stop screw trims the extend stroke on site, so the usable range is 140-160 mm. Its 160 mm stroke is longer than the 100 mm standard limit for bore 20, so it is a made-to-order build.
The short ISO 21287-class body saves roughly 50% of the mounting length of an ISO 15552 profile cylinder, which helps in tight gantries and guarding. A fixed TPU bumper sits at both ends, and the fitted -S magnet accepts CMSE / DMSE switches for end-of-stroke sensing. As a rule of thumb, plan on about 94 N (roughly 9.6 kg, halved for a 2:1 margin) of vertical lift at 0.5 MPa. This model is discontinued; the current-production drop-in is the ACEJ20X160, so confirm ISO 21287 mounting dimensions before swapping.
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ20X160-20S |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ20X160-20S |
| 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 ACEJ20X160-20S (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 ACEJ20X160-20S 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 is enough to seat small connectors or press light dowels in electronics and small-appliance assembly stations, and the 140-160 mm trim range lets technicians dial the stroke to the fixture without shimming.
With about 9.6 kg of practical vertical lift at 0.5 MPa (2:1 margin), this cylinder raises sensor probes or small housings in automated test benches, while the fitted magnet and CMSE switches confirm top and bottom positions.
The short body fits where a full-length profile cylinder cannot, pushing cartons or trays off a conveyor lane; the 20 mm adjustment window absorbs lane-width changes without re-machining the bracket.
Size between bores: a 16 mm bore gives 100.5 N push at 0.5 MPa, while stepping up to a 25 mm-class body raises the force further - confirm from datasheet if your load sits between the two. With 157.1 N push at 0.5 MPa, keep continuous loads near 94 N and treat the stop screw as an extend-stroke end stop only, not a mid-stroke lock; on air loss the piston still drifts. The 160 mm stroke is non-standard for bore 20 (100 mm max standard), so expect a made-to-order unit. FA/FB flange or LB foot mounts and the fitted -S magnet for CMSE / DMSE switches round out the spec. For new projects, order the ACEJ20X160 instead and verify ISO 21287 mounting dimensions.
Replacement checklist
At 0.5 MPa it pushes 157.1 N and pulls 117.8 N; at 0.7 MPa those rise to 219.9 N and 164.9 N, with a theoretical maximum of 32 kgf at 1.0 MPa. It is double acting with a 20 mm adjustment window (usable stroke 140-160 mm), M5x0.8 ports, a 10 mm rod with female M6x1.0 thread, operating pressure 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), speed 30-500 mm/s, and a fixed TPU bumper at both ends. The 160 mm stroke is a made-to-order length since bore 20 tops out at 100 mm standard.
Yes, position sensing works on this unit because the -S code fits the magnet, so CMSE or DMSE reed and solid-state switches mount directly on the body. For new or replacement purchases, order the ACEJ20X160: the ACPJ family is no longer in production, and the ACEJ is the current ISO 21287 drop-in in the same bore, stroke and force class. Confirm the ISO 21287 mounting dimensions against your fixture before swapping, since the ACP follows the older DIN-standard footprint.
Send us the quantity and destination. We confirm price, stock and lead time on the ACEJ20X160-20S replacement — usually within 7-8 hours.