This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACEJ16X70-40 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACEJ16X70-40 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 ACPJ16X70-40
The AirTAC Airtac ACPJ Adjustable Compact Cylinder ACPJ16X70-40 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 ACEJ16X70-40 (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 → ACEJ16X70-40
About the Airtac ACPJ Adjustable Compact Cylinder ACPJ16X70-40
Double acting compact cylinder with an adjustable extend stroke, the ACPJ16X70-40 runs on a 16 mm bore and 70 mm stroke and delivers 100.5 N push and 75.4 N pull at 0.5 MPa (140.7 N push at 0.7 MPa). A stop screw trims the extend stroke by up to 40 mm on site, giving a usable range of 30-70 mm, so one cylinder can be tuned to several fixture positions without reordering. Note this model is discontinued; the current-production replacement is the ACEJ16X70.
The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, which is why it slots into tight jigs and guarding where a full-length body will not fit. At 0.5 MPa plan for roughly 60 N (about 6 kg) of usable push rather than the full 100.5 N rating, enough to lift a 3 kg part vertically with margin. FA/FB flange and LB foot mounts bolt to the standard face, and the optional -S magnet enables CMSE / DMSE switches - this unit has no magnet fitted.
Airtac ACPJ Adjustable Compact Cylinder ACPJ16X70-40 Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ16X70-40 |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ16X70-40 |
| 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 ACEJ16X70-40 (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 ACEJ16X70-40 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 ACPJ16X70-40
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 16 | Bore size in mm. |
| ×70 | 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 ACPJ16X70-40 Is Used
Small-part ejection from CNC fixtures
The 100.5 N push at 0.5 MPa is enough to kick finished 16 mm-shaft parts off a CNC jig, and the 30-70 mm adjustable range lets the setter dial in the eject position without swapping cylinders.
Position-checked clamping on assembly cells
With the optional -S magnet fitted, CMSE or DMSE switches confirm clamp state on a rotary indexing table; the 75.4 N pull retracts the clamp cleanly between cycles at 30-500 mm/s.
Light press-fitting of bushings
About 60 N of usable push (roughly 6 kg) seats small plastic bushings into housings on an electronics assembly bench, with the TPU bumper softening the end of each 70 mm stroke.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ16X70-40 with the ACEJ16X70-40
Size up or down by force: the 12 mm bore gives 56.5 N push at 0.5 MPa, while the 20 mm bore reaches 157.1 N - pick the 16 mm when 100.5 N at 0.5 MPa covers the job with margin. The 40 mm window suits stations where the final extend position is tuned during commissioning; remember the stop is a mechanical end stop only, so the rod still drifts if air is lost. Order the -S code if you need magnet-based CMSE / DMSE sensing, and specify FA/FB flange or LB foot to match your fixture. For new builds, specify the ACEJ16X70 instead - it is the current drop-in in the same bore, stroke and force class, but confirm ISO 21287 mounting dimensions before swapping from this DIN-standard ACP body.
Replacement checklist
- ✓ Current-production ACE → ACEJ16X70-40
- ✓ 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 ACPJ16X70-40 FAQ
At 0.5 MPa it pushes 100.5 N and pulls 75.4 N; at 0.7 MPa that rises to 140.7 N push and 105.6 N pull, with a theoretical maximum of 20.5 kgf at 1.0 MPa. In practice plan on about 60 N of usable push at 0.5 MPa, which lifts roughly 3 kg vertically with a 2:1 margin. Operating pressure is 0.15-1.0 MPa (22-145 psi), speed 30-500 mm/s, and the extend stroke is trimmable anywhere in the 30-70 mm range via the 40 mm stop window.
It is a short-body compact cylinder with a hard-anodized aluminium body, an 8 mm S45C hard-chrome rod with M4x0.7 female thread, M5x0.8 ports and fixed TPU bumpers at both ends - the body saves about 50% of the mounting length of an ISO 15552 profile cylinder. Position sensing requires the optional -S magnet code; without it no magnet is fitted and no CMSE / DMSE switch can be mounted. This model is discontinued, so for new projects order the ACEJ16X70, the current drop-in successor, and confirm ISO 21287 mounting dimensions before the swap.
Related AirTAC ACE Cylinders
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