This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACEJ20X150-20 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACEJ20X150-20 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 ACPJ20X150-20
The AirTAC Airtac ACPJ Adjustable Compact Cylinder ACPJ20X150-20 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 ACEJ20X150-20 (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 → ACEJ20X150-20
- 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 ACPJ20X150-20
The ACPJ20X150-20 is a double acting compact cylinder with an adjustable extend stroke: a stop screw trims the 150 mm stroke by up to 20 mm on site, giving a usable range of 130-150 mm. The 20 mm bore pushes 157.1 N and pulls 117.8 N at 0.5 MPa (219.9 N / 164.9 N at 0.7 MPa), so it suits light clamping and positioning in tight fixtures. The 150 mm stroke is longer than the 100 mm standard maximum for this bore, so it is a made-to-order build.
Its short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, which matters in slim gantries and guarded cells. Plan on roughly 94 N of real work at 0.5 MPa, and note it lifts about 8 kg vertically with a 2:1 margin. The fixed TPU bumper at each end only decelerates the piston; it never holds a load, and on air loss the rod drifts. This model is discontinued - the current-production drop-in is the ACEJ20X150, so confirm ISO 21287 mounting dimensions before swapping.
Airtac ACPJ Adjustable Compact Cylinder ACPJ20X150-20 Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ20X150-20 |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ20X150-20 |
| 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 ACEJ20X150-20 (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 ACEJ20X150-20 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 ACPJ20X150-20
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 20 | Bore size in mm. |
| ×150 | 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).
Where the Airtac ACPJ Adjustable Compact Cylinder ACPJ20X150-20 Is Used
Small-parts ejection on assembly benches
The 157.1 N push at 0.5 MPa is enough to kick stamped clips or bushings off a nest, and the 130-150 mm adjustable range lets the operator dial the eject point without re-fixturing.
Light vertical lift in a compact gantry
With about 8 kg of vertical lift capacity at a 2:1 margin, the 20 mm bore raises small jigs or sensor brackets inside a frame too short for an ISO 15552 profile cylinder.
Bench-top press for connector crimping
Roughly 94 N of usable working force at 0.5 MPa suits low-force crimp or mark operations on cable assemblies, with the stop screw setting the final press depth.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ20X150-20 with the ACEJ20X150-20
Size against 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. This unit has a female M6x1.0 rod thread, PT ports and no magnet - order the -S code if you need CMSE / DMSE switch positions. FA/FB flange and LB foot mountings bolt to the standard face. The 150 mm stroke is non-standard and made to order, and the ACPJ family is discontinued: specify the ACEJ20X150 as the current equivalent and verify ISO 21287 dimensions.
Replacement checklist
- ✓ Current-production ACE → ACEJ20X150-20
- ✓ 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 ACPJ20X150-20 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. The -20 code gives a 20 mm adjustment window, so the extend stroke can be trimmed anywhere between 130 and 150 mm. The 150 mm stroke exceeds the 100 mm standard maximum for a 20 mm bore, so it is made to order. Operating pressure is 0.15-1.0 MPa (22-145 psi) and speed is 30-500 mm/s.
The ACPJ family is no longer in production. The current-production drop-in is the ACEJ20X150, which matches the same bore, stroke and force class in the ISO 21287 short-body format; confirm the mounting dimensions before swapping because the ACPJ follows the older DIN-standard layout. This unit has no magnet fitted, so no switch can be mounted; if you need position sensing, order the -S version and use CMSE or DMSE switches. FA/FB flange and LB foot mountings are available.
Related AirTAC ACE Cylinders
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Send us the quantity and destination. We confirm price, stock and lead time on the ACEJ20X150-20 replacement — usually within 7-8 hours.