This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACEJ16X70-20B — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACEJ16X70-20B 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 ACPJ16X70-20B
The AirTAC Airtac ACPJ Adjustable Compact Cylinder ACPJ16X70-20B 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 ACEJ16X70-20B (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 → ACEJ16X70-20B
About the Airtac ACPJ Adjustable Compact Cylinder ACPJ16X70-20B
A double acting compact cylinder with an adjustable extend stroke, the ACPJ16X70-20B carries a 16 mm bore, a 70 mm stroke and a male-threaded 8 mm rod (the B code). Air feeds through M5x0.8 ports at 0.15-1.0 MPa (22-145 psi), and the stop screw trims the extend stroke by up to 20 mm, giving a usable 50-70 mm range. At 0.5 MPa it pushes 100.5 N, so plan for roughly 60 N of real work, which is about 6 kg of vertical lift with a sensible margin. The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight jigs and guarding where a full-length body will not fit.
This model is DISCONTINUED. The current-production replacement is ACEJ16X70, which matches the same bore, stroke and force class - confirm the ISO 21287 mounting dimensions before swapping, since the ACP family was built to a DIN-standard footprint. Construction is a hard-anodized aluminium body with an S45C hard-chrome rod, fixed TPU bumpers at both ends, and speeds of 30-500 mm/s. Note that no magnet is fitted on this code (no S), so no CMSE or DMSE switch can be mounted; order the -S variant if sensing is needed.
Airtac ACPJ Adjustable Compact Cylinder ACPJ16X70-20B Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ16X70-20B |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ16X70-20B |
| 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 ACEJ16X70-20B (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 ACEJ16X70-20B 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 ACPJ16X70-20B
| 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 ACPJ16X70-20B Is Used
Small-parts ejection from CNC fixtures
The 100.5 N push at 0.5 MPa is enough to kick finished aluminium or brass parts off a locating pin, and the 50-70 mm adjustable range lets the setter dial in the exact eject travel without shimming.
Carton flap tuck on a packaging line
With a 70 mm stroke trimmed down as needed and 30-500 mm/s speed control, the cylinder folds top flaps on small e-commerce cartons inside tight machine frames that a longer body cannot enter.
Bench-top go/no-go test stations
A male-threaded 8 mm rod bolts straight to an I-type knuckle to press a probe onto PCB assemblies; note this code has no magnet, so add the -S option if CMSE or DMSE end-position sensing is required.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ16X70-20B with the ACEJ16X70-20B
Size the bore to the load: at 0.5 MPa this 16 mm bore delivers 100.5 N push and 75.4 N pull; step down to a 12 mm bore (56.5 N push) for lighter clamping, or up to a 20 mm bore (157.1 N push) for heavier tooling. The 20 mm window shortens the extend stroke only - it never lengthens it past 70 mm - and the stop is a mechanical end stop, not a mid-stroke lock, so the piston can drift on air loss. Mounting uses FA/FB flanges or LB feet on the ISO 21287 face. This unit is discontinued; order ACEJ16X70 as the drop-in successor and verify mounting dimensions.
Replacement checklist
- ✓ Current-production ACE → ACEJ16X70-20B
- ✓ 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 ACPJ16X70-20B FAQ
At 0.5 MPa it pushes 100.5 N and pulls 75.4 N; at 0.7 MPa push rises to 140.7 N and pull to 105.6 N, with a theoretical maximum of 20.5 kgf at 1.0 MPa. The -20 code sets a 20 mm adjustment window: a stop screw shortens the 70 mm extend stroke to any value from 50 to 70 mm. It is a mechanical end stop only - it does not hold a load if air is lost. Operating range is 0.15-1.0 MPa (22-145 psi) with speeds of 30-500 mm/s.
No - the ACPJ family is discontinued. The current-production drop-in is ACEJ16X70, which keeps the same 16 mm bore, 70 mm stroke and force class in a short ISO 21287 body with FA/FB flange and LB foot options. Because the ACP was built to a DIN-standard footprint, confirm the ISO 21287 mounting dimensions before swapping. Also note the optional -S magnet is what enables CMSE / DMSE switch mounting; without it no sensor can be fitted.
Related AirTAC ACE Cylinders
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