This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACEJ16X120-40S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACEJ16X120-40S 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 ACPJ16X120-40S
The AirTAC Airtac ACPJ Adjustable Compact Cylinder ACPJ16X120-40S is a double acting, adjustable stroke DIN-standard tight/compact air cylinder with a Ø16mm 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 ACEJ16X120-40S (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ16 mm
- Stroke120 mm
- Port sizeM5×0.8
- Acting typeDouble acting, adjustable stroke
- Rod threadM4×0.7
- StatusDiscontinued → ACEJ16X120-40S
About the Airtac ACPJ Adjustable Compact Cylinder ACPJ16X120-40S
Double acting with an adjustable stroke, the ACPJ16X120-40S is a discontinued DIN-standard compact cylinder: a 16 mm bore drives an 8 mm rod through a 120 mm stroke that a stop screw can trim by up to 40 mm, giving a usable extend range of 80-120 mm. At 0.5 MPa it pushes 100.5 N and pulls 75.4 N; at 0.7 MPa those rise to 140.7 N and 105.6 N, with a theoretical peak of 20.5 kgf at 1.0 MPa. The 120 mm stroke exceeds the 75 mm maximum standard stroke for this bore, so it is made to order.
The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, which is why it suits narrow slides and guarded stations. Rule of thumb: expect roughly 60 N of real work at 0.5 MPa, enough to lift about 5 kg vertically with a 2:1 margin. The -S code on this model means the magnet is fitted, so CMSE or DMSE switches can be mounted. Replacement: order ACEJ16X120, the current-production drop-in, and confirm ISO 21287 mounting dimensions before swapping.
Airtac ACPJ Adjustable Compact Cylinder ACPJ16X120-40S Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ16X120-40S |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ16X120-40S |
| Bore size | Ø16 mm |
| Stroke | 120 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | M5×0.8 |
| Rod thread | M4×0.7 |
| 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 75 mm |
Specifications follow the official AirTAC ACP datasheet (now discontinued). The ACEJ16X120-40S (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 (Ø16mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 101 N | 75 N |
| 0.7 MPa | 141 N | 106 N |
| Max (@1.0 MPa) | 21 kgf | |
The ACEJ16X120-40S 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 ACPJ16X120-40S
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 16 | Bore size in mm. |
| ×120 | Stroke length in mm. |
| -40 | 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 ACPJ16X120-40S Is Used
Adjustable ejection on a packaging line
The 40 mm window lets one cylinder serve carton heights from 80 to 120 mm of stroke, with 100.5 N at 0.5 MPa enough to kick finished cartons off a forming station.
Position-checked clamp in an assembly jig
With the -S magnet fitted, a CMSE or DMSE switch confirms full clamp on each cycle; the 20.5 kgf theoretical peak gives ample margin on small brackets.
Light press-fit station for electronics
About 60 N of practical force at 0.5 MPa presses connectors into PCB housings, while the short body fits inside a guarded benchtop fixture.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ16X120-40S with the ACEJ16X120-40S
Size both ways: if 100.5 N of push at 0.5 MPa is more than your fixture needs, the ACPJ12 at 56.5 N may suffice; if 140.7 N at 0.7 MPa feels marginal, step up to the ACPJ20 for 157.1 N at 0.5 MPa. The stop screw only shortens the extend stroke within the 40 mm window - it is a mechanical end stop, not a mid-stroke lock, so the piston still drifts if air is lost. FA/FB flange and LB foot mountings bolt to the standard face, and the fitted -S magnet accepts CMSE / DMSE switches. For new builds order ACEJ16X120 and verify ISO 21287 dimensions.
Replacement checklist
- ✓ Current-production ACE → ACEJ16X120-40S
- ✓ 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 ACPJ16X120-40S FAQ
At 0.5 MPa it pushes 100.5 N and pulls 75.4 N; at 0.7 MPa, 140.7 N push and 105.6 N pull; theoretical maximum is 20.5 kgf at 1.0 MPa. The -40 code sets a 40 mm adjustment window: a stop screw shortens the 120 mm extend stroke on site, so the usable range is 80-120 mm. It shortens the stroke only - it never lengthens it past 120 mm, and it is not a load-holding brake. The 120 mm stroke is a made-to-order length, since the bore's standard maximum is 75 mm.
This is a short-body compact cylinder whose mounting length is about 50% less than an ISO 15552 profile cylinder, with a hard-anodized aluminium body, S45C hard-chrome rod, fixed TPU bumpers at both ends and M5x08 ports - written M5x0.8. Because the -S magnet is fitted on this model, CMSE or DMSE reed or solid-state switches mount directly. The ACPJ family is discontinued; the current-production replacement is ACEJ16X120, a drop-in in the same bore, stroke and force class - confirm ISO 21287 mounting dimensions before swapping.
Related AirTAC ACE Cylinders
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