This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACEJ12X100-75B, 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 ACPJ12X100-75B
The AirTAC ACPJ Adjustable Compact Cylinder ACPJ12X100-75B is a double acting, double rod, adjustable stroke DIN-standard tight/compact air cylinder with a Ø12mm bore and 100mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACEJ12X100-75B (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ12 mm
- Stroke100 mm
- Port sizeM5×0.8
- Acting typeDouble acting, double rod, adjustable stroke
- Rod threadM3×0.5
- StatusDiscontinued → ACEJ12X100-75B
- 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 ACPJ12X100-75B
The ACPJ12X100-75B is a double acting compact cylinder with an adjustable extend stroke: a stop screw trims the 100 mm stroke by up to 75 mm, giving a usable range of 25-100 mm. Air works on both faces of the 12 mm piston, so at 0.5 MPa it pushes 56.5 N and pulls 42.4 N, rising to 79.2 N and 59.4 N at 0.7 MPa. The 100 mm stroke exceeds the 50 mm standard limit for this bore, so it is a made-to-order build. This model is discontinued; the current-production replacement is the ACEJ12X100, a drop-in ISO 21287 successor in the same bore, stroke and force class.
The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, which is why it suits tight jigs, guards and gantries. A fixed TPU bumper sits at both ends, and the hard-anodized aluminium body carries an S45C hard-chrome 6 mm rod with a male thread (the B code). Because there is no S in this code, no magnet is fitted, so CMSE / DMSE switches cannot be used; order the -S variant if sensing is needed. As a sizing rule of thumb, plan on roughly 34 N of real work at 0.5 MPa, which lifts about 2.9 kg vertically with a 2:1 margin.
Airtac ACPJ Adjustable Compact Cylinder ACPJ12X100-75B Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ12X100-75B |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ12X100-75B |
| Bore size | Ø12 mm |
| Stroke | 100 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 ACEJ12X100-75B (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 ACPJ12X100-75B
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 12 | Bore size in mm. |
| ×100 | 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 ACPJ12X100-75B Is Used
Small-part ejection from press dies
A 34 N usable push at 0.5 MPa is enough to strip light aluminium stampings off a die, and the 25-100 mm trim range lets one cylinder serve several die heights.
Lab sample indexing on micro-automation lines
The short body fits inside compact analytical and diagnostic equipment, and the male-threaded 6 mm rod bolts straight to custom tooling plates.
Vertical lowering of sensor carriages
With about 2.9 kg of vertical lift capacity at a 2:1 margin, it lowers lightweight camera or sensor heads in inspection gantries; add the -S magnet code if position switches are required.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ12X100-75B with the ACEJ12X100-75B
If 56.5 N of push at 0.5 MPa is marginal for your jig, step up to the 16 mm bore for 100.5 N; if the load is under about 20 N, the same 12 mm bore in a shorter fixed-stroke ACP may be cheaper. The stop screw only shortens the extend stroke and is not a mid-stroke lock: on air loss the piston still drifts, so do not rely on it to hold a load. Match FA/FB flange or LB foot hardware to the ISO 21287 face, and confirm the ISO 21287 mounting dimensions of the ACEJ12X100 before swapping from this discontinued DIN-standard model.
Replacement checklist
- ✓ Current-production ACE → ACEJ12X100-75B
- ✓ 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 ACPJ12X100-75B 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. The theoretical maximum is 11.5 kgf at 1.0 MPa. It runs on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), from -20 to +70 C at 30-500 mm/s.
The -75 code is a 75 mm adjustment window: an external stop screw shortens the 100 mm extend stroke on site, so the effective range is 25-100 mm; it cannot lengthen the stroke past 100 mm. The fixed TPU bumpers only decelerate at the ends. This model is discontinued - the ACEJ12X100 is the current ISO 21287 drop-in, so confirm its mounting dimensions before swapping.
Related AirTAC ACE Cylinders
Request a Quote for the ACEJ12X100-75B
Send us the quantity and destination. We confirm price, stock and lead time on the ACEJ12X100-75B replacement — usually within 7-8 hours.