This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACEJ20X150-75B — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACEJ20X150-75B 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 ACPJ20X150-75B
The AirTAC Airtac ACPJ Adjustable Compact Cylinder ACPJ20X150-75B 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 ACEJ20X150-75B (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 → ACEJ20X150-75B
- 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 ACPJ20X150-75B
This is a double acting compact cylinder with an adjustable extend stroke: a stop screw trims the 150 mm stroke by up to 75 mm, giving a usable range of 75-150 mm on site. The 20 mm bore delivers 157.1 N push and 117.8 N pull at 0.5 MPa, rising to 219.9 N push at 0.7 MPa, with a theoretical maximum of 32 kgf at 1.0 MPa. The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight jigs and gantries. The 150 mm stroke exceeds the 100 mm standard maximum for this bore, so it is a made-to-order build.
In practice, plan for roughly 94 N of real work at 0.5 MPa (about 0.6 of the rated push), which lifts about 8 kg vertically with a 2:1 margin. The hard-anodized aluminium body carries an S45C hard-chrome rod with a male (B code) thread, fixed TPU bumpers at both ends, and speeds of 30-500 mm/s at 0.15-1.0 MPa (22-145 psi). No magnet is fitted on this version, so no CMSE or DMSE switch can be mounted unless you order the optional -S code. Note that ACPJ is discontinued: the current-production drop-in is ACEJ20X150, and you should confirm ISO 21287 mounting dimensions before swapping, since the ACP series is DIN-standard.
Airtac ACPJ Adjustable Compact Cylinder ACPJ20X150-75B Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ20X150-75B |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ20X150-75B |
| 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 ACEJ20X150-75B (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 ACEJ20X150-75B 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 ACPJ20X150-75B
| 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 ACPJ20X150-75B Is Used
Fixture clamping on a CNC jig
The 75 mm adjustment window lets a machinist trim the extend stroke to clamp aluminium housings at exactly 90 mm without shimming, using about 94 N of usable force at 0.5 MPa.
Carton kickers on a packing line
With about 8 kg vertical-lift equivalent, the 20 mm bore deflects small cartons off a conveyor lane, and the short body fits under low guarding where a full-length cylinder will not.
Sample press in a lab bench rig
Pushing 157.1 N at 0.5 MPa seats vials or test coupons in a compact bench fixture, with the male rod thread (B code) taking a knuckle for off-axis alignment.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ20X150-75B with the ACEJ20X150-75B
Size against neighbours: the 16 mm bore gives 100.5 N push at 0.5 MPa, while the next size up in this family is the 20 mm class itself at 157.1 N, so this model suits loads between roughly 60 and 90 N of real work. The stop screw only shortens the extend stroke and is a mechanical end stop, not a mid-stroke lock: on air loss the piston still drifts, so do not use it to hold a load. FA/FB flange and LB foot mountings bolt to the standard face, and the optional -S magnet enables CMSE / DMSE switches if position sensing is added later. For new projects, order ACEJ20X150 instead, confirming the ISO 21287 mounting dimensions.
Replacement checklist
- ✓ Current-production ACE → ACEJ20X150-75B
- ✓ 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 ACPJ20X150-75B FAQ
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. Operating pressure is 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), speed 30-500 mm/s, temperature -20 to +70 C, air filtered to 40 um, port M5x0.8, rod 10 mm with male thread. The 150 mm stroke is a made-to-order build above the 100 mm standard maximum for this bore, trimmed by a 75 mm adjustment window.
An external stop screw shortens the extend stroke anywhere within the ordered 75 mm window, so the working range is 75-150 mm; it cannot lengthen the stroke past 150 mm, and it is an end stop only, never a load-holding brake. The ACPJ family is discontinued. The current-production replacement is ACEJ20X150 (swap the P for an E), a drop-in in the same bore, stroke and force class - confirm the ISO 21287 mounting dimensions before swapping, because the ACP series is DIN-standard. This version has no magnet; order the optional -S code if you need CMSE / DMSE switch capability.
Related AirTAC ACE Cylinders
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