This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACEJ20X120-10 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACEJ20X120-10 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 ACPJ20X120-10
The AirTAC Airtac ACPJ Adjustable Compact Cylinder ACPJ20X120-10 is a double acting, adjustable stroke DIN-standard tight/compact air cylinder with a Ø20mm bore and 120mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACEJ20X120-10 (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ20 mm
- Stroke120 mm
- Port sizeM5×0.8
- Acting typeDouble acting, adjustable stroke
- Rod threadM6×1.0
- StatusDiscontinued → ACEJ20X120-10
- 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 ACPJ20X120-10
This is a double acting compact cylinder with an adjustable extend stroke, built on the DIN-standard ACP short-body format. The 20 mm bore delivers 157.1 N push and 117.8 N pull at 0.5 MPa (219.9 N / 164.9 N at 0.7 MPa), with a theoretical maximum of 32 kgf at 1.0 MPa. The 120 mm stroke is a non-standard, made-to-order length because bore 20 tops out at 100 mm as a standard stroke. Note: the ACPJ family is discontinued; the current-production replacement is the ACEJ20X120.
The -10 code sets a 10 mm adjustment window: a stop screw trims the extend stroke anywhere in a 110-120 mm range without changing the cylinder. The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight fixtures. As a rule of thumb, plan on roughly 94 N of usable work at 0.5 MPa (about 60% of the push rating), which lifts around 4.8 kg vertically with a 2:1 margin. The rod end is female M6x1.0 and the port is M5x0.8.
Airtac ACPJ Adjustable Compact Cylinder ACPJ20X120-10 Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ20X120-10 |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ20X120-10 |
| Bore size | Ø20 mm |
| Stroke | 120 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 ACEJ20X120-10 (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 ACEJ20X120-10 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 ACPJ20X120-10
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 20 | Bore size in mm. |
| ×120 | 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).
Where the Airtac ACPJ Adjustable Compact Cylinder ACPJ20X120-10 Is Used
Small-part press fitting
The 157.1 N push at 0.5 MPa seats bearings or bushings into aluminium housings on electronics assembly benches, with the 110-120 mm adjustable range matching varying part heights.
Lab sample handling
Lifts about 4.8 kg vertically with margin, enough for reagent racks and sample trays in automated test stations where a short body must fit under a benchtop frame.
Carton hold-down on packing lines
The 117.8 N pull retracts a hold-down pad over carton flaps at up to 500 mm/s, and the 10 mm trim window lets operators tune the clamp height per box size.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ20X120-10 with the ACEJ20X120-10
Size up or down from here: the 16 mm bore gives 100.5 N push at 0.5 MPa, while the next class up is the 32 mm bore. If you need position sensing, order the -S variant with the optional magnet, since this model has no magnet and no switch can be mounted on it; CMSE / DMSE switches work only with the -S code. FA/FB flange and LB foot mounts bolt straight to the face. Remember the stop screw only shortens the extend stroke and drifts on air loss, so it is not a load lock. For new projects, specify the ACEJ20X120 and confirm ISO 21287 mounting dimensions before swapping.
Replacement checklist
- ✓ Current-production ACE → ACEJ20X120-10
- ✓ 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 ACPJ20X120-10 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; the 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, and the port is M5x0.8 with a female M6x1.0 rod thread.
The -10 code means a stop screw shortens the 120 mm extend stroke by up to 10 mm, giving a usable 110-120 mm range; it is a mechanical end stop, not a mid-stroke lock, so the piston still drifts if air is lost. The ACPJ is discontinued: the current drop-in is the ACEJ20X120, which matches the same bore, stroke and force class - confirm the ISO 21287 mounting dimensions before swapping, since the ACP is DIN-standard.
Related AirTAC ACE Cylinders
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