This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACEJ16X70-20S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACEJ16X70-20S 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 ACPJ16X70-20S
The AirTAC Airtac ACPJ Adjustable Compact Cylinder ACPJ16X70-20S is a double acting, adjustable stroke DIN-standard tight/compact air cylinder with a Ø16mm bore and 70mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACEJ16X70-20S (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ16 mm
- Stroke70 mm
- Port sizeM5×0.8
- Acting typeDouble acting, adjustable stroke
- Rod threadM4×0.7
- StatusDiscontinued → ACEJ16X70-20S
About the Airtac ACPJ Adjustable Compact Cylinder ACPJ16X70-20S
Double acting and adjustable in stroke, the ACPJ16X70-20S is a discontinued DIN-standard compact cylinder: a 16 mm bore driving an 8 mm rod through a 70 mm stroke, with a stop screw that trims the extend stroke by up to 20 mm so the working range is 50-70 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 20.5 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 fixtures and guarding where a full-length body cannot.
The -S code on this model means the magnet is fitted, so CMSE or DMSE reed and solid-state switches can be clamped straight onto the hard-anodized aluminium body to report end positions. For sizing, plan on roughly 60 N of usable push at 0.5 MPa (about 0.6 of the rating), which lifts around 6 kg vertically - halve that to about 3 kg for a 2:1 margin on real part weight. The rod end is female M4x0.7, the port is M5x0.8, and the current-production replacement is the ACEJ16X70: confirm ISO 21287 mounting dimensions before swapping, since the ACP series is DIN-standard.
Airtac ACPJ Adjustable Compact Cylinder ACPJ16X70-20S Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ16X70-20S |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ16X70-20S |
| Bore size | Ø16 mm |
| Stroke | 70 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 ACEJ16X70-20S (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 ACEJ16X70-20S 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 ACPJ16X70-20S
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 16 | Bore size in mm. |
| ×70 | 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 ACPJ16X70-20S Is Used
Small-part ejection from press dies
A 16 mm bore pushing 100.5 N at 0.5 MPa is enough to kick stamped terminals or plastic caps off a die face, and the 50-70 mm trim range lets the toolsetter match the eject distance without re-plumbing.
Position-verified test fixtures
With the -S magnet fitted, CMSE or DMSE switches confirm the rod has reached the trimmed end position on an electronics test jig, closing the fixture interlock before the test sequence starts.
Bottle-capping and labelling heads
The short body, about 50% shorter in mounting length than an ISO 15552 profile cylinder, tucks a 70 mm stroke capping or labelling head into the cramped head-space of a packaging line.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ16X70-20S with the ACEJ16X70-20S
At 16 mm bore this sits mid-range in the ACPJ family: the 12 mm bore delivers 56.5 N push at 0.5 MPa if your load is lighter, while the 20 mm bore gives 157.1 N if you need more force in the same short envelope. The 70 mm stroke is within the 75 mm maximum standard stroke for this bore, so it is a catalogue item, and the -20 window lets you dial the extend stroke anywhere between 50 and 70 mm on site. Remember the stop screw only shortens the extend stroke - it is not a mid-stroke lock, and on air loss the piston still drifts. FA/FB flange and LB foot mountings bolt to the standard face, and the fitted -S magnet accepts CMSE / DMSE switches. Order the ACEJ16X70 as the current drop-in replacement.
Replacement checklist
- ✓ Current-production ACE → ACEJ16X70-20S
- ✓ 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 ACPJ16X70-20S FAQ
At 0.5 MPa it pushes 100.5 N and pulls 75.4 N; at 0.7 MPa it pushes 140.7 N and pulls 105.6 N; theoretical maximum is 20.5 kgf at 1.0 MPa. For real work, plan on about 60 N of usable push at 0.5 MPa, which lifts roughly 6 kg vertically - or about 3 kg with a 2:1 safety margin. Operating pressure is 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), speed 30-500 mm/s, air filtered to 40 um, temperature -20 to +70 C.
The -20 code gives a 20 mm adjustment window: an external stop screw shortens the 70 mm extend stroke on site, giving a usable range of 50-70 mm. It shortens the stroke only - it never lengthens it past 70 mm, and it is a mechanical end stop, not a load-holding brake. Fixed TPU bumpers at both ends decelerate the piston at each end of travel. The ACPJ family is discontinued; the current-production replacement is the ACEJ16X70 in the same bore, stroke and force class - confirm ISO 21287 mounting dimensions before swapping, as the ACP is DIN-standard.
Related AirTAC ACE Cylinders
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