This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACEJ12X75-20SB, 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 ACPJ12X75-20SB
The AirTAC ACPJ Adjustable Compact Cylinder ACPJ12X75-20SB is a double acting, double rod, adjustable stroke DIN-standard tight/compact air cylinder with a Ø12mm bore and 75mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACEJ12X75-20SB (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ12 mm
- Stroke75 mm
- Port sizeM5×0.8
- Acting typeDouble acting, double rod, adjustable stroke
- Rod threadM3×0.5
- StatusDiscontinued → ACEJ12X75-20SB
- 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 ACPJ12X75-20SB
This AirTAC ACPJ12X75-20SB is a double acting compact cylinder with an adjustable extend stroke: the -20 stop screw trims the 75 mm stroke by up to 20 mm on site, giving a usable range of 55-75 mm. Air works both ways, pushing 56.5 N and pulling 42.4 N at 0.5 MPa, and the 12 mm bore runs on M5x0.8 ports at 0.15-1.0 MPa (22-145 psi). The 75 mm stroke exceeds the 50 mm standard maximum 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, which is why it slots into slim jigs and guarding where a full-length body cannot. Because the S code is on this model, the magnet is fitted and CMSE / DMSE reed or solid-state switches can be clipped on for end-of-stroke sensing. For sizing, treat roughly 34 N (about 0.6 of the push force) as the practical working effort at 0.5 MPa, which lifts about 2.9 kg vertically with a 2:1 margin. Note this model is discontinued; the current-production drop-in is ACEJ12X75, and you should confirm ISO 21287 mounting dimensions before swapping since the ACP is DIN-standard.
Airtac ACPJ Adjustable Compact Cylinder ACPJ12X75-20SB Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ12X75-20SB |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ12X75-20SB |
| Bore size | Ø12 mm |
| Stroke | 75 mm |
| Acting type | Double acting, double rod, adjustable stroke |
| Port size | M5×0.8 |
| Rod thread | M3×0.5 |
| 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 50 mm |
Specifications follow the official AirTAC ACP datasheet (now discontinued). The ACEJ12X75-20SB (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 (Ø12mm)
| Pressure | Force (both ways) |
|---|---|
| 0.5 MPa | 42 N |
| 0.7 MPa | 59 N |
| Max (@1.0 MPa) | 9 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 ACPJ12X75-20SB
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 12 | Bore size in mm. |
| ×75 | 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 (double rod, adjustable stroke).
Where the Airtac ACPJ Adjustable Compact Cylinder ACPJ12X75-20SB Is Used
Small-part ejection from plastic moulds
The 56.5 N push at 0.5 MPa is enough to kick lightweight moulded clips or caps off a nest, and the 55-75 mm adjustable range lets the operator tune the eject position without re-machining the fixture.
Position-verified gate latch on a packaging line
With the fitted magnet and a CMSE switch, the PLC gets a positive closed signal at the trimmed stroke end, confirming the gate is latched before the filler head drops.
Light clamping of PCB test fixtures
About 34 N of practical working force at 0.5 MPa holds a small circuit board against a test pogo-pin block, and the male M3x0.5 rod thread takes a custom pressure foot directly.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ12X75-20SB with the ACEJ12X75-20SB
At 12 mm bore this is the smallest force step in the ACPJ range: 56.5 N push at 0.5 MPa. If your load needs more, step up to the 16 mm bore (100.5 N push at 0.5 MPa) or the 20 mm bore (157.1 N). If 56.5 N is generous for the job, there is no smaller ACPJ bore, so check whether a shorter stroke or lower pressure suits instead. The B code gives a male 6 mm rod with M3x0.5 male thread, handy for direct tooling attachment. The adjuster is a mechanical end stop for the extend stroke only, not a mid-stroke lock, so the piston still drifts if air is lost. FA/FB flange or LB foot mounts bolt to the standard face, and this unit is discontinued - order ACEJ12X75 as the current replacement and verify ISO 21287 mounting dimensions first.
Replacement checklist
- ✓ Current-production ACE → ACEJ12X75-20SB
- ✓ 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 ACPJ12X75-20SB FAQ
At 0.5 MPa it pushes 56.5 N and pulls 42.4 N; at 0.7 MPa it pushes 79.2 N and pulls 59.4 N; theoretical maximum is 11.5 kgf at 1.0 MPa. It is a 12 mm bore, 75 mm stroke double acting cylinder with a 20 mm adjustment window (usable 55-75 mm), M5x0.8 ports, 6 mm rod with male M3x0.5 thread, TPU bumpers both ends, speed 30-500 mm/s, air filtered to 40 um, and a fitted -S magnet for CMSE / DMSE switches. The 75 mm stroke is a made-to-order length above the 50 mm standard maximum for this bore.
No - the ACPJ family is discontinued and this model is no longer in production. The current-production drop-in is ACEJ12X75, which swaps the P for an E and matches the same bore, stroke and force class in the ISO 21287 short-body format. Because the ACP was built to a DIN standard, confirm the ISO 21287 mounting dimensions against your fixture before ordering the swap.
Related AirTAC ACE Cylinders
Request a Quote for the ACEJ12X75-20SB
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