This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACEJ16X120-50SB — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACEJ16X120-50SB 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 ACPJ16X120-50SB
The AirTAC Airtac ACPJ Adjustable Compact Cylinder ACPJ16X120-50SB 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 ACEJ16X120-50SB (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 → ACEJ16X120-50SB
About the Airtac ACPJ Adjustable Compact Cylinder ACPJ16X120-50SB
The ACPJ16X120-50SB is a double acting compact cylinder with an adjustable extend stroke: a stop screw trims the 120 mm stroke by up to 50 mm on site, giving a usable range of 70-120 mm. This 16 mm bore unit pushes 100.5 N and pulls 75.4 N at 0.5 MPa (140.7 N push at 0.7 MPa), runs on 0.15-1.0 MPa (22-145 psi) filtered air at 30-500 mm/s, and carries the -S magnet plus a male (B) rod thread. Note that 120 mm exceeds the 75 mm maximum standard stroke for bore 16, so this is a made-to-order stroke.
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. The hard-anodized aluminium body and S45C hard-chrome rod handle -20 to +70 C, and fixed TPU bumpers pad both ends. For sizing, treat roughly 60 N (about 6 kg) as the practical working force at 0.5 MPa rather than the full rating. This model is discontinued; the current drop-in is ACEJ16X120, so confirm ISO 21287 mounting dimensions before swapping.
Airtac ACPJ Adjustable Compact Cylinder ACPJ16X120-50SB Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ16X120-50SB |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ16X120-50SB |
| 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 ACEJ16X120-50SB (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 ACEJ16X120-50SB 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 ACPJ16X120-50SB
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 16 | Bore size in mm. |
| ×120 | Stroke length in mm. |
| -50 | 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 ACPJ16X120-50SB Is Used
Fixture clamping with tuned stroke
Clamps small aluminium brackets on an assembly jig where the extend position is set after mounting; the 50 mm window lets technicians trim the 70-120 mm range without changing cylinders, with about 6 kg of practical working force at 0.5 MPa.
Position-checked ejection on a packaging line
The -S magnet feeds CMSE or DMSE switches so the PLC confirms each 120 mm eject stroke of blister cards, while the compact short body fits inside tight guarding.
Sample pusher in a lab automation module
Advances microplate trays between stations; the male rod thread takes a knuckle for pivoting push pads, and the 70-120 mm adjustable range matches varying tray pitches.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ16X120-50SB with the ACEJ16X120-50SB
At 0.5 MPa this 16 mm bore delivers 100.5 N push / 75.4 N pull. If your load needs more, step up to the 20 mm bore (157.1 N push / 117.8 N pull); if less, the 12 mm bore gives 56.5 N push / 42.4 N pull. The 50 mm window suits fixtures where the final extend position is tuned after installation - remember the stop only shortens the stroke and drifts on air loss, so it is not a load-holding lock. The male rod thread (B code) pairs with Y-type knuckles, and FA flange or LB foot mounts bolt to the standard face. The fitted -S magnet accepts CMSE / DMSE switches. Order ACEJ16X120 as the current-production replacement.
Replacement checklist
- ✓ Current-production ACE → ACEJ16X120-50SB
- ✓ 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 ACPJ16X120-50SB 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; theoretical maximum is 20.5 kgf at 1.0 MPa. A practical rule is to plan on about 60 N of real work at 0.5 MPa, which corresponds to lifting roughly 3 kg vertically with a 2:1 margin. Operating pressure is 0.15-1.0 MPa (22-145 psi), proof 1.5 MPa (215 psi), speed 30-500 mm/s.
The -50 code sets a 50 mm adjustment window: an external stop screw shortens the 120 mm extend stroke to any position down to 70 mm. It is a mechanical end stop only - on air loss the piston still drifts, so never rely on it to hold a load. Fixed TPU bumpers pad both ends of travel. The ACPJ family is discontinued; the current-production drop-in is ACEJ16X120 (same bore, stroke and force class). Confirm the ISO 21287 mounting dimensions before swapping, since the ACP is DIN-standard.
Related AirTAC ACE Cylinders
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