This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACEJ20X150-75S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACEJ20X150-75S 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.
Airtac ACPJ Adjustable Compact Cylinder ACPJ20X150-75S
The AirTAC Airtac ACPJ Adjustable Compact Cylinder ACPJ20X150-75S is a double acting, adjustable stroke DIN-standard tight/compact air cylinder with a Ø20mm bore and 150mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACEJ20X150-75S (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ20 mm
- Stroke150 mm
- Port sizeM5×0.8
- Acting typeDouble acting, adjustable stroke
- Rod threadM6×1.0
- StatusDiscontinued → ACEJ20X150-75S
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac ACPJ Adjustable Compact Cylinder ACPJ20X150-75S
Double acting and adjustable, the ACPJ20X150-75S is a discontinued DIN-standard compact cylinder with a 20 mm bore and a made-to-order 150 mm stroke. A stop screw trims the extend stroke anywhere inside the 75 mm window, giving a usable range of 75-150 mm on site. At 0.5 MPa it pushes 157.1 N and pulls 117.8 N, and the theoretical peak is 32 kgf at 1.0 MPa. The short ISO 21287-class body saves roughly 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight gantries and guarding where a full-length body cannot.
This unit carries the optional -S magnet, so CMSE or DMSE reed and solid-state switches can be clamped straight onto the hard-anodized aluminium body to report end positions. The S45C hard-chrome rod ends in a female M6x1.0 thread and air feeds through M5x0.8 ports. As a planning figure, keep real work near 94 N (about 0.6 of the push rating), which corresponds to lifting roughly 4.8 kg vertically with margin. Since ACPJ is out of production, order the current ACEJ20X150 drop-in instead and confirm the ISO 21287 mounting dimensions before the swap.
Airtac ACPJ Adjustable Compact Cylinder ACPJ20X150-75S Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ20X150-75S |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ20X150-75S |
| Bore size | Ø20 mm |
| Stroke | 150 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 ACEJ20X150-75S (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.
Theoretical Output Force (Ø20mm)
| 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 ACEJ20X150-75S produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac ACPJ Adjustable Compact Cylinder ACPJ20X150-75S
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 20 | Bore size in mm. |
| ×150 | Stroke length in mm. |
| -75 | 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).
Where the Airtac ACPJ Adjustable Compact Cylinder ACPJ20X150-75S Is Used
Benchtop press fixture
The 157.1 N push at 0.5 MPa suits light staking and marking of small aluminium housings, with the 75 mm window letting one cylinder serve several part heights between 75 and 150 mm.
Packaging line reject pusher
Mounted on an LB foot beside a narrow conveyor, the short body clears guarding, and the fitted magnet with a DMSE switch confirms the pusher has fully retracted after each reject kick.
Lab sample elevator
With about 4.8 kg of practical vertical lift capacity at 0.5 MPa, the cylinder raises sample trays in compact analytical equipment, and the female M6x1.0 rod thread takes a standard knuckle.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ20X150-75S with the ACEJ20X150-75S
Size by force first: at 0.5 MPa this 20 mm bore delivers 157.1 N of push, while the 16 mm bore gives 100.5 N and the next step up in the family would be needed beyond this class. If your jig needs a shorter body for the same force, compare the fixed-stroke ACP or the double-rod ACPD, both also superseded by ACE series models. The 150 mm stroke is above the 100 mm standard maximum for this bore, so it is built to order. Note that the stop screw only limits the extend stroke; it is not a mid-stroke lock, and the piston will drift if air is lost. FA/FB flanges and LB feet bolt to the standard face, and the fitted -S magnet accepts CMSE / DMSE switches. For new projects, specify the ACEJ20X150.
Replacement checklist
- ✓ Current-production ACE → ACEJ20X150-75S
- ✓ Same bore / stroke / force class
- ✓ Confirm ISO 21287 mounting dimensions
- ✓ Port/thread type (PT / G)
- ✓ Add -S for magnet if you need sensors
Airtac ACPJ Adjustable Compact Cylinder ACPJ20X150-75S FAQ
At 0.5 MPa it pushes 157.1 N and pulls 117.8 N; at 0.7 MPa those rise to 219.9 N push and 164.9 N pull, with a theoretical maximum of 32 kgf at 1.0 MPa. The -75 code means a stop screw shortens the 150 mm extend stroke by up to 75 mm, so the working range is 75-150 mm. The stroke is made to order because the standard maximum for a 20 mm bore is 100 mm. Air supply is 0.15-1.0 MPa (22-145 psi) and speed is 30-500 mm/s.
ACPJ is no longer in production; the current-production replacement is the ACEJ20X150, the same bore, stroke and force class with the P swapped for an E. Confirm the ISO 21287 mounting dimensions before swapping, since ACP follows the older DIN-standard footprint. The compact body is about 50% shorter in mounting length than an ISO 15552 profile cylinder, uses a hard-anodized aluminium body with an S45C hard-chrome rod, has fixed TPU bumpers at both ends, M5x0.8 ports, and this -S version carries the optional magnet for CMSE / DMSE switches.
Related AirTAC ACE Cylinders
Request a Quote for the ACEJ20X150-75S
Send us the quantity and destination. We confirm price, stock and lead time on the ACEJ20X150-75S replacement — usually within 7-8 hours.