This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACEJ12X100-75, 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 ACPJ12X100-75
The AirTAC ACPJ Adjustable Compact Cylinder ACPJ12X100-75 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 ACEJ12X100-75 (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 → ACEJ12X100-75
- 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 ACPJ12X100-75
This discontinued AirTAC model is a double acting, adjustable-stroke compact cylinder: a 12 mm bore driving a 6 mm rod through a 100 mm stroke, with a stop screw that trims the extend stroke anywhere inside the 75 mm window, giving a usable range of 25-100 mm. At 0.5 MPa it pushes 56.5 N and pulls 42.4 N; at 0.7 MPa those rise to 79.2 N and 59.4 N, with a theoretical ceiling of 11.5 kgf at 1.0 MPa. The 100 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 roughly 50% of the mounting length of an ISO 15552 profile cylinder, which is why it slots into slim fixtures and guarding where a full-length body cannot.
Practical sizing: plan on about 34 N (roughly 0.6 of the 56.5 N push) of real work at 0.5 MPa, which corresponds to lifting about 3 kg vertically with a 2:1 margin. The hard-anodized aluminium body carries an S45C hard-chrome rod, fixed TPU bumpers at both ends, and an M5x0.8 port; speed runs 30-500 mm/s across 0.15-1.0 MPa (22-145 psi). No magnet is fitted on this code, so no CMSE or DMSE switch can be mounted unless you order the optional -S version. Since the ACPJ line is discontinued, the current-production drop-in is the ACEJ12X100 - confirm the ISO 21287 mounting dimensions before swapping, because the ACP is DIN-standard.
Airtac ACPJ Adjustable Compact Cylinder ACPJ12X100-75 Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ12X100-75 |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ12X100-75 |
| 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 ACEJ12X100-75 (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 ACPJ12X100-75
| 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 ACPJ12X100-75 Is Used
Small-part ejection from fixtures
The 25-100 mm trim range lets a jig builder dial the exact eject stroke for 20-30 mm plastic caps off a machining fixture, using the 56.5 N push at 0.5 MPa without touching the mechanical stop between batches.
Label or stamping head on packaging lines
A light print or stamp head weighing under 3 kg can be lifted vertically within the 2:1 margin of the 34 N usable force, with the stop screw set so the head never over-travels into the label web.
Micro press-fit of connectors
Pushing small pins into PCB connectors suits the 79.2 N available at 0.7 MPa; the 75 mm window covers different board heights, and the fixed TPU bumpers quiet the return at 30-500 mm/s.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ12X100-75 with the ACEJ12X100-75
At 12 mm bore this is the smallest force class in the family: 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 consider a lighter mechanism or lower pressure. Remember 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. Mounting is FA/FB flange or LB foot on the standard face; the rod end here is a female M3x0.5 thread with PT ports. For new designs, order the ACEJ12X100 instead, as this model is discontinued.
Replacement checklist
- ✓ Current-production ACE → ACEJ12X100-75
- ✓ 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 ACPJ12X100-75 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. In practice budget about 34 N (0.6 of the push) for real work at 0.5 MPa, which lifts roughly 3 kg vertically with a 2:1 margin. The 100 mm stroke is a made-to-order length because the standard maximum for a 12 mm bore is 50 mm, and the -75 window lets the stop screw trim the extend stroke to anywhere between 25 and 100 mm.
An external stop screw shortens the extend stroke within the ordered 75 mm window; it cannot lengthen the stroke past 100 mm, and it is a mechanical end stop only - it never locks or holds a load if air is lost. This ACPJ is discontinued; the current-production drop-in is the ACEJ12X100 (swap the P for an E), which matches the same bore, stroke and force class in the ISO 21287 family. Confirm the ISO 21287 mounting dimensions before swapping, since the ACP is DIN-standard. Also note no magnet is fitted on this code - the optional -S version is required for CMSE or DMSE switches.
Related AirTAC ACE Cylinders
Request a Quote for the ACEJ12X100-75
Send us the quantity and destination. We confirm price, stock and lead time on the ACEJ12X100-75 replacement — usually within 7-8 hours.