This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACEJ16X70-20SB — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACEJ16X70-20SB 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 ACPJ16X70-20SB
The AirTAC Airtac ACPJ Adjustable Compact Cylinder ACPJ16X70-20SB 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 ACEJ16X70-20SB (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 → ACEJ16X70-20SB
About the Airtac ACPJ Adjustable Compact Cylinder ACPJ16X70-20SB
The ACPJ16X70-20SB is a double acting, adjustable-stroke compact cylinder with a 16 mm bore and 70 mm stroke, now discontinued and replaced by the ACEJ16X70. Its stop screw trims the extend stroke anywhere in a 20 mm window, so the working range is 50-70 mm without changing hardware. 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 ceiling of 20.5 kgf at 1.0 MPa. The short ISO 21287-class body saves roughly 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.
Practical sizing: treat about 60 N (0.6 of the push force) as the usable working force at 0.5 MPa, and expect roughly 10 kg of vertical lift capability, or about 5 kg with a 2:1 margin. The hard-anodized aluminium body carries an S45C hard-chrome rod with a male thread (B code), and the -S code on this model means the magnet is fitted, so CMSE / DMSE reed or solid-state switches can be mounted directly. A fixed TPU bumper sits at both ends, speed runs 30-500 mm/s, and air supply is filtered to 40 um at 0.15-1.0 MPa (22-145 psi). Before ordering, confirm the ISO 21287 mounting dimensions against your fixture since the ACP series is DIN-standard.
Airtac ACPJ Adjustable Compact Cylinder ACPJ16X70-20SB Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ16X70-20SB |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ16X70-20SB |
| 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 ACEJ16X70-20SB (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 ACEJ16X70-20SB 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 ACPJ16X70-20SB
| 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 ACPJ16X70-20SB Is Used
Fixture clamping on CNC pallets
The 100.5 N push at 0.5 MPa with a 50-70 mm trim range suits repeatable clamp-and-unclamp cycles on small CNC fixture pallets, where the short body fits inside the fixture footprint.
Position-verified ejector on packaging lines
With the -S magnet fitted, CMSE or DMSE switches confirm extend and retract on a 70 mm ejector stroke for carton or blister transfer, running at 30-500 mm/s.
Sample press in lab automation
About 10 kg of vertical press capability (5 kg with a 2:1 margin) covers light sample pressing, capping and lid-seating stations in compact analytical instruments.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ16X70-20SB with the ACEJ16X70-20SB
Size both ways: if 100.5 N at 0.5 MPa is more than your jig needs, the ACPJ12 at 56.5 N push saves space and air; if your load needs more, step up to the ACPJ20 for 157.1 N. The 70 mm stroke sits just under the 75 mm maximum standard stroke for bore 16, so no made-to-order stroke is required. The 20 mm window lets you dial the extend stroke between 50 and 70 mm on site, but remember the stop is a mechanical end stop, not a mid-stroke lock - on air loss the piston still drifts, so do not rely on it to hold a load. FA/FB flanges and LB feet bolt to the face, and the male rod thread (B) suits I/Y knuckles. For current production, order the ACEJ16X70 and confirm ISO 21287 mounting dimensions first.
Replacement checklist
- ✓ Current-production ACE → ACEJ16X70-20SB
- ✓ 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 ACPJ16X70-20SB 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 -20 code gives a 20 mm adjustment window, so the extend stroke can be trimmed from 70 mm down to 50 mm with the stop screw. Operating pressure is 0.15-1.0 MPa (22-145 psi), proof 1.5 MPa (215 psi), speed 30-500 mm/s, port M5x0.8, rod 8 mm with male thread.
Yes - the S in the code means the optional -S magnet is fitted on this model, so CMSE reed and DMSE solid-state switches can be mounted for end-position sensing. The ACPJ family is discontinued; the current-production drop-in is the ACEJ16X70 (ISO 21287), which matches the same bore, stroke and force class. Confirm the ISO 21287 mounting dimensions against your fixture before swapping, since the ACP series is DIN-standard.
Related AirTAC ACE Cylinders
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