This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACEJ16X120-75S, the same code under the new prefix. 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 ACPJ16X120-75S
The AirTAC ACPJ Adjustable Compact Cylinder ACPJ16X120-75S is a double acting, double rod, 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 ACEJ16X120-75S (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ16 mm
- Stroke120 mm
- Port sizeM5×0.8
- Acting typeDouble acting, double rod, adjustable stroke
- Rod threadM4×0.7
- StatusDiscontinued → ACEJ16X120-75S
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac ACPJ Adjustable Compact Cylinder ACPJ16X120-75S
The ACPJ16X120-75S is a discontinued double acting adjustable-stroke compact cylinder in the DIN-standard ACPJ family. Air extends and retracts the 8 mm rod, and a stop screw trims the extend stroke anywhere inside the 75 mm window, giving a usable range of 45-120 mm. At 0.5 MPa the 16 mm bore delivers 100.5 N push and 75.4 N pull, rising to 140.7 N push at 0.7 MPa, with a theoretical ceiling of 20.5 kgf at 1.0 MPa. The 120 mm stroke exceeds the 75 mm standard limit for this bore, so it is a made-to-order build.
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 reach. Because the -S magnet is fitted on this model, CMSE or DMSE reed and solid-state switches can be clamped directly on the body for end-of-stroke signalling. As a rule of thumb, plan on roughly 60 N of usable push at 0.5 MPa, which lifts about 5 kg vertically with a 2:1 margin. This model is discontinued: the current-production replacement is the ACEJ16X120, and buyers should confirm the ISO 21287 mounting dimensions before swapping, since the ACPJ follows the older DIN layout.
Airtac ACPJ Adjustable Compact Cylinder ACPJ16X120-75S Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ16X120-75S |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ16X120-75S |
| Bore size | Ø16 mm |
| Stroke | 120 mm |
| Acting type | Double acting, double rod, 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 ACEJ16X120-75S (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 | Force (both ways) |
|---|---|
| 0.5 MPa | 75 N |
| 0.7 MPa | 106 N |
| Max (@1.0 MPa) | 15 kgf |
ACPJ is double-rod: the rear rod that carries the stroke adjuster exits the rear cover, so both piston faces lose rod area. The rod-side (annular) area is used for both directions (conservative).
Model Code: Airtac ACPJ Adjustable Compact Cylinder ACPJ16X120-75S
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 16 | Bore size in mm. |
| ×120 | Stroke length in mm. |
| -75 | 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 (double rod, adjustable stroke).
Where the Airtac ACPJ Adjustable Compact Cylinder ACPJ16X120-75S Is Used
Fixture clamping on a CNC jig
The 45-120 mm trim range lets one cylinder serve several part heights on a milling fixture, with about 100 N of push holding aluminium brackets against a locating stop.
Switched eject on a small assembly line
With the fitted magnet and a DMSE switch, the PLC confirms each 120 mm eject stroke on a electronics assembly station running at 30-500 mm/s.
Compact press for connector crimping
Roughly 5 kg of vertical lift capacity with a 2:1 margin suits light crimp and insert presses mounted inside tight machine guards where a long-body cylinder will not fit.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ16X120-75S with the ACEJ16X120-75S
Size the bore by load: at 0.5 MPa the 16 mm bore pushes 100.5 N, while the smaller 12 mm bore manages only 56.5 N and the larger 20 mm bore reaches 157.1 N. If your fixture needs more than about 60 N of real working force, stay at 16 mm or step up. The stop screw shortens the extend stroke only - it never lengthens it past 120 mm and it is not a mid-stroke lock, so the rod can drift if air is lost. FA flange or LB foot mounts bolt to the standard face, and I/Y rod knuckles suit the M4x0.7 female rod thread. Order the ACEJ16X120 as the current drop-in and verify the ISO 21287 mounting dimensions first.
Replacement checklist
- ✓ Current-production ACE → ACEJ16X120-75S
- ✓ 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 ACPJ16X120-75S FAQ
At 0.5 MPa it pushes 100.5 N and pulls 75.4 N; at 0.7 MPa those rise to 140.7 N push and 105.6 N pull, with a theoretical maximum of 20.5 kgf at 1.0 MPa. The -75 code is a 75 mm adjustment window: the stop screw shortens the 120 mm extend stroke by up to 75 mm, so the usable range is 45-120 mm. It runs on 0.15-1.0 MPa (22-145 psi) filtered air at 30-500 mm/s. Note this model is discontinued; the ACEJ16X120 is the current replacement.
The body is hard-anodized aluminium with threaded aluminium covers, an S45C hard-chrome rod with an M4x0.7 female thread, M5x0.8 ports and a fixed TPU bumper at each end. The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder. This model carries the optional -S magnet, so CMSE or DMSE reed and solid-state switches mount directly on the body. The 120 mm stroke is a made-to-order length above the 75 mm standard for bore 16, and the ACEJ16X120 is the current-production successor.
Related AirTAC ACE Cylinders
Request a Quote for the ACEJ16X120-75S
Send us the quantity and destination. We confirm price, stock and lead time on the ACEJ16X120-75S replacement — usually within 7-8 hours.