This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACEJ20X100-10S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACEJ20X100-10S 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 ACPJ20X100-10S is a double acting, adjustable stroke DIN-standard tight/compact air cylinder with a Ø20mm bore and 100mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACEJ20X100-10S (ISO 21287 ACE), in the same bore, stroke and force class.
The ACPJ20X100-10S is a double acting compact cylinder with an adjustable stroke, now discontinued. Its 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. The -10 code adds a 10 mm adjustment window, so a stop screw trims the extend stroke anywhere in a 90-100 mm range on site. With the -S magnet fitted, CMSE or DMSE reed and solid-state switches can be clamped straight onto the hard-anodized aluminium body.
Because the short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, it slots into tight gantries and guarding where a full-length body cannot. At 0.5 MPa the push force equates to roughly 16 kgf, so plan on about 9 kg of vertical lift for a 2:1 margin when matching a real part weight. A fixed TPU bumper sits at both ends, the S45C hard-chrome rod runs at 30-500 mm/s, and the current drop-in replacement is the ACEJ20X100 - confirm ISO 21287 mounting dimensions before swapping, since the ACP is DIN-standard.
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ20X100-10S |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ20X100-10S |
| Bore size | Ø20 mm |
| Stroke | 100 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 ACEJ20X100-10S (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 ACEJ20X100-10S 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. |
| ×100 | Stroke length in mm. |
| -10 | 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 holds aluminium housings against a drilling jig, and the 90-100 mm trimmed stroke clears the operator's hand path.
A short-body actuator ejects cartons sideways at up to 500 mm/s, with the -S magnet and a DMSE switch confirming each ejection cycle.
With about 9 kg of practical vertical lift at 0.5 MPa, the cylinder raises sensor heads or sample trays inside compact guarding.
Size against the neighbours: the 16 mm bore gives 100.5 N push at 0.5 MPa, while stepping up to a larger bore adds force if 157.1 N is marginal for your load. Note that the stop screw only shortens the extend stroke within the 10 mm window - it is a mechanical end stop, not a mid-stroke lock, so the piston still drifts if air is lost. FA/FB flange and LB foot mountings bolt to the standard face, and the optional -S magnet (fitted on this model) enables CMSE / DMSE switch sensing. For new projects, order the current-production ACEJ20X100 instead.
Replacement checklist
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 maximum of 32 kgf at 1.0 MPa. The -10 code gives a 10 mm adjustment window, so the extend stroke can be trimmed anywhere between 90 and 100 mm with the stop screw. Operating pressure is 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), and speed 30-500 mm/s.
Order the ACEJ20X100, the current-production ISO 21287 successor made by swapping the P for an E. It matches the same bore, stroke and force class and keeps the short compact body, M5x0.8 port and female M6x1.0 rod thread. Because the ACP is DIN-standard, confirm the ISO 21287 mounting dimensions before swapping, and check FA/FB flange or LB foot bracket fit. The -S magnet on this model supports CMSE / DMSE switches; on the ACE the equivalent option applies.
Send us the quantity and destination. We confirm price, stock and lead time on the ACEJ20X100-10S replacement — usually within 7-8 hours.