This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACEJ20X120-100B — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACEJ20X120-100B 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 ACPJ20X120-100B
The AirTAC Airtac ACPJ Adjustable Compact Cylinder ACPJ20X120-100B 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 ACEJ20X120-100B (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 → ACEJ20X120-100B
- 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 ACPJ20X120-100B
This double acting ACPJ20X120-100B is a DIN-standard compact cylinder with a 20 mm bore, a 120 mm made-to-order stroke and a 100 mm adjustment window: a stop screw trims the extend stroke anywhere in the 20-120 mm range on site. Air works on both faces of the piston, so it pushes 157.1 N and pulls 117.8 N at 0.5 MPa (219.9 N / 164.9 N at 0.7 MPa). The male-threaded 10 mm rod (the B code) bolts straight to your tooling.
The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight gantries and guarding. In practice, plan on roughly 94 N of usable push at 0.5 MPa, which lifts about 8 kg vertically with a 2:1 margin. Note this model is discontinued: the current-production drop-in is the ACEJ20X120, so confirm ISO 21287 mounting dimensions before swapping. The magnet is not fitted here; order the -S code if you later need CMSE / DMSE switch sensing.
Airtac ACPJ Adjustable Compact Cylinder ACPJ20X120-100B Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ20X120-100B |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ20X120-100B |
| 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 ACEJ20X120-100B (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 ACEJ20X120-100B 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 ACPJ20X120-100B
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 20 | Bore size in mm. |
| ×120 | Stroke length in mm. |
| -100 | 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 ACPJ20X120-100B Is Used
Robotic end-effector clamping
The 157.1 N push at 0.5 MPa secures machined aluminium housings in a welding-cell fixture, with the stop screw trimming the approach stroke per part.
Packaging line product pusher
A short-body cylinder ejects cartons from a conveyor lane; the 20-120 mm adjustable range handles different pack heights without re-plumbing.
Small-parts press station
About 8 kg of vertical lift capacity with a 2:1 margin suits pressing dowels into electronics enclosures on a bench-top assembly rig.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ20X120-100B with the ACEJ20X120-100B
At 20 mm bore this sits at the top of the ACPJ range: it delivers 157.1 N push at 0.5 MPa where a 16 mm bore gives 100.5 N and a 12 mm bore 56.5 N. Size up to an ACEJ 32 mm bore if you need more than about 220 N at 0.7 MPa. The 120 mm stroke exceeds the 100 mm standard maximum for this bore, so it is made to order. The stop screw is a mechanical end stop for the extend stroke only - on air loss the piston still drifts, so add a separate valve or lock if you must hold a load mid-travel. FA/FB flange and LB foot mountings fit the ISO 21287 face. Replacement: ACEJ20X120.
Replacement checklist
- ✓ Current-production ACE → ACEJ20X120-100B
- ✓ 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 ACPJ20X120-100B FAQ
Push 157.1 N and pull 117.8 N at 0.5 MPa; push 219.9 N and pull 164.9 N at 0.7 MPa; theoretical maximum 32 kgf at 1.0 MPa. Operating pressure 0.15-1.0 MPa (22-145 psi), proof 1.5 MPa (215 psi), speed 30-500 mm/s, temperature -20 to +70 C, port M5x0.8, rod 10 mm with male thread, TPU bumper both ends, and a 100 mm extend-stroke adjustment window. The 120 mm stroke is a made-to-order length above the 100 mm standard maximum.
An external stop screw shortens the extend stroke anywhere within the ordered 100 mm window, giving a usable range of 20-120 mm; it cannot lengthen the stroke past 120 mm. It is a mechanical end stop, not a mid-stroke lock, so the rod can drift if air is lost. This ACPJ is discontinued - the current drop-in is the ACEJ20X120 in the same bore, stroke and force class. Confirm the ISO 21287 mounting dimensions before swapping, since the ACP follows the older DIN-standard footprint. No magnet is fitted on this version; the optional -S code enables CMSE / DMSE switches.
Related AirTAC ACE Cylinders
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