This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACEJ20X110-40S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACEJ20X110-40S 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 ACPJ20X110-40S is a double acting, adjustable stroke DIN-standard tight/compact air cylinder with a Ø20mm bore and 110mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACEJ20X110-40S (ISO 21287 ACE), in the same bore, stroke and force class.
This is a double acting, adjustable-stroke compact cylinder in the discontinued AirTAC ACPJ series. 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 -40 code gives a 40 mm adjustment window: a stop screw trims the extend stroke on site, so the usable range is 70-110 mm. Note the 110 mm stroke exceeds the 100 mm standard maximum for bore 20, so it is a made-to-order stroke.
The short ISO 21287-class body saves about 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 cannot. Because roughly 60% of the push force is a realistic working figure, plan for about 94 N of actual work at 0.5 MPa - about 9 kg lifted vertically with a 2:1 margin. The -S magnet is fitted on this model, so CMSE / DMSE reed or solid-state switches can be mounted directly. This model is discontinued; the current-production drop-in is ACEJ20X110, and buyers should confirm ISO 21287 mounting dimensions before swapping.
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ20X110-40S |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ20X110-40S |
| Bore size | Ø20 mm |
| Stroke | 110 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 ACEJ20X110-40S (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 | 157 N | 118 N |
| 0.7 MPa | 220 N | 165 N |
| Max (@1.0 MPa) | 32 kgf | |
The ACEJ20X110-40S 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). |
|---|---|
| 20 | Bore size in mm. |
| ×110 | 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 70-110 mm adjustable range lets a machinist set the exact clamp position on aluminium jigs, with 157.1 N push holding light alloy parts during drilling.
Compact body and M5x0.8 ports fit inside benchtop analysers; the fitted magnet plus a DMSE switch confirms ejection of sample trays at the trimmed stop.
At 30-500 mm/s the rod kicks lightweight cartons off a conveyor lane; the 94 N working force at 0.5 MPa is enough for a 9 kg equivalent load with margin.
Size by force: at 0.5 MPa bore 20 gives 157.1 N push, while bore 16 gives 100.5 N and the next step up in the family would add headroom for heavier clamping. If your part weight sits near 9 kg, this bore with a 2:1 margin is the right class. The 40 mm window suits fixtures where the final stop position is tuned after installation - remember the stop screw only shortens the extend stroke and is not a mid-stroke lock, so the rod still drifts on air loss. FA/FB flange and LB foot mountings bolt to the standard face, and the fitted -S magnet accepts CMSE / DMSE switches. Order ACEJ20X110 as the current replacement and verify ISO 21287 dimensions first.
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 -40 code gives a 40 mm window, so the stop screw trims the 110 mm extend stroke anywhere down to 70 mm. Operating pressure is 0.15-1.0 MPa (22-145 psi), proof 1.5 MPa (215 psi), speed 30-500 mm/s, with a fixed TPU bumper at both ends. The 110 mm stroke is non-standard for bore 20 (standard max 100 mm), so it is made to order.
No - the ACPJ series is discontinued. The current-production drop-in is ACEJ20X110 (same bore, stroke and force class); confirm ISO 21287 mounting dimensions before swapping since the ACP is DIN-standard. This unit carries the optional -S magnet, so CMSE / DMSE reed or solid-state switches mount directly for end-of-stroke sensing. FA/FB flange and LB foot mountings, plus I/Y rod knuckles, bolt to the standard face. Weight and outline dimensions: confirm from datasheet.
Send us the quantity and destination. We confirm price, stock and lead time on the ACEJ20X110-40S replacement — usually within 7-8 hours.