This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACEJ16X120-30B, 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 ACPJ16X120-30B
The AirTAC ACPJ Adjustable Compact Cylinder ACPJ16X120-30B 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 ACEJ16X120-30B (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 → ACEJ16X120-30B
- 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 ACPJ16X120-30B
The ACPJ16X120-30B is a double acting, adjustable-stroke compact cylinder in the DIN-standard ACPJ family, now discontinued in favour of the ISO 21287 ACEJ16X120. Its 16 mm bore delivers 100.5 N push and 75.4 N pull at 0.5 MPa (rising to 140.7 N at 0.7 MPa), with a theoretical maximum of 20.5 kgf at 1.0 MPa. The -30 code sets a 30 mm adjustment window: an external stop screw trims the 120 mm extend stroke down to as little as 90 mm, so one cylinder covers a 90-120 mm working range on site. The 120 mm stroke exceeds the 75 mm standard maximum for bore 16, so it is a made-to-order build.
The short ISO 21287-class body saves roughly 50% of the mounting length of an ISO 15552 profile cylinder, which is why it suits tight jigs and guard-mounted tooling. A rule of thumb for planning: about 60 N of real work is available at 0.5 MPa, which lifts roughly 3 kg vertically with a 2:1 margin. The hard-anodized aluminium body carries an S45C hard-chrome rod, fixed TPU bumpers sit at both ends, and the male rod thread (B code) bolts to standard knuckles. Speed range is 30-500 mm/s at 0.15-1.0 MPa (22-145 psi).
Airtac ACPJ Adjustable Compact Cylinder ACPJ16X120-30B Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ16X120-30B |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ16X120-30B |
| 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 ACEJ16X120-30B (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 ACPJ16X120-30B
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 16 | Bore size in mm. |
| ×120 | Stroke length in mm. |
| -30 | 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 ACPJ16X120-30B Is Used
Fixture clamping on CNC jigs
The 30 mm trim window lets a machinist set the exact clamp position between 90 and 120 mm without swapping cylinders when the fixture plate changes.
Sample press in lab automation
About 60 N of usable push at 0.5 MPa seats vials and small test fixtures gently, and the male rod thread accepts a standard I-type knuckle.
Carton push-off on packing lines
With 100.5 N push at 0.5 MPa the 16 mm bore nudges lightweight cartons off a conveyor lane inside a guard where a full-length body would not fit.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ16X120-30B with the ACEJ16X120-30B
Size against neighbours: the 12 mm bore gives 56.5 N push at 0.5 MPa, while the 20 mm bore reaches 157.1 N, so pick 16 mm when 100.5 N at 0.5 MPa covers the job with margin. Note that the stop screw is a mechanical end stop for the extend stroke only - it does not lock the piston mid-stroke, and on air loss the rod still drifts, so add a separate valve or clamp where holding matters. This unit has no magnet (no S code), so CMSE or DMSE switches cannot be fitted; order the -S variant if sensing is needed. FA/FB flanges and LB feet bolt straight to the mounting face. Before ordering, confirm the ISO 21287 dimensions of the current ACEJ16X120 replacement, since this DIN-standard model is discontinued.
Replacement checklist
- ✓ Current-production ACE → ACEJ16X120-30B
- ✓ 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 ACPJ16X120-30B FAQ
At 0.5 MPa it pushes 100.5 N and pulls 75.4 N; at 0.7 MPa push is 140.7 N and pull 105.6 N; theoretical maximum is 20.5 kgf at 1.0 MPa. The -30 code gives a 30 mm adjustment window, so the extend stroke can be trimmed from 120 mm down to 90 mm with the external stop screw. The 120 mm stroke is a made-to-order length because the bore 16 standard maximum is 75 mm.
The short-body build saves about 50% of the mounting length of an ISO 15552 profile cylinder, with an M5x0.8 port and fixed TPU bumpers at both ends. This ACPJ model is discontinued; the current-production drop-in is the ACEJ16X120 in the same bore, stroke and force class - confirm the ISO 21287 mounting dimensions before swapping.
Related AirTAC ACE Cylinders
Request a Quote for the ACEJ16X120-30B
Send us the quantity and destination. We confirm price, stock and lead time on the ACEJ16X120-30B replacement — usually within 7-8 hours.