This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACEJ12X100-30S, 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 ACPJ12X100-30S
The AirTAC ACPJ Adjustable Compact Cylinder ACPJ12X100-30S 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 ACEJ12X100-30S (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 → ACEJ12X100-30S
- 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 ACPJ12X100-30S
This ACPJ12X100-30S is a double acting compact cylinder with an adjustable extend stroke: a stop screw trims the 100 mm stroke down by up to 30 mm, giving a usable range of 70-100 mm. At 0.5 MPa the 12 mm bore pushes 56.5 N and pulls 42.4 N; at 0.7 MPa that rises to 79.2 N push and 59.4 N pull, with a theoretical ceiling of 11.5 kgf at 1.0 MPa. In practice, plan on roughly 34 N of real work at 0.5 MPa, which is about 2.9 kg of vertical lift with a 2:1 margin - enough for small clamps, gates and light pick-and-place parts.
The 100 mm stroke is beyond 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, and the fitted -S magnet accepts CMSE / DMSE reed or solid-state switches. Note that this ACPJ family is discontinued: the current-production drop-in is the ACEJ12X100, so confirm ISO 21287 mounting dimensions before swapping from the DIN-standard footprint.
Airtac ACPJ Adjustable Compact Cylinder ACPJ12X100-30S Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ12X100-30S |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ12X100-30S |
| 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 ACEJ12X100-30S (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 ACPJ12X100-30S
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 12 | Bore size in mm. |
| ×100 | 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 ACPJ12X100-30S Is Used
Small jig clamping
The 56.5 N push at 0.5 MPa suits light hold-down clamps on electronics assembly jigs, with the 70-100 mm adjustable range tuned to each fixture.
Position-checked ejector
With the fitted -S magnet, CMSE or DMSE switches confirm extend and retract on a small parts-ejector station running at 30-500 mm/s.
Light vertical lift
Lifts about 2.9 kg vertically with a 2:1 margin at 0.5 MPa - useful for raising small covers or chutes inside tight machine frames.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ12X100-30S with the ACEJ12X100-30S
Size the bore to the load, not the port: if 56.5 N at 0.5 MPa is marginal, step up to the 16 mm bore (100.5 N push at 0.5 MPa); if the load is tiny, the same 12 mm bore in a shorter fixed stroke may do. The 30 mm window only shortens the extend stroke - it is a mechanical end stop, not a mid-stroke lock, so the rod still drifts on air loss. FA/FB flange and LB foot mountings plus the optional -S magnet (CMSE / DMSE switches) match standard fixtures. Order the ACEJ12X100 as the current replacement and verify the ISO 21287 mounting dimensions first.
Replacement checklist
- ✓ Current-production ACE → ACEJ12X100-30S
- ✓ 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 ACPJ12X100-30S FAQ
At 0.5 MPa it pushes 56.5 N and pulls 42.4 N; at 0.7 MPa, 79.2 N push and 59.4 N pull; theoretical maximum is 11.5 kgf at 1.0 MPa. The -30 code is a 30 mm adjustment window: an external stop screw shortens the 100 mm extend stroke to any setting from 70 to 100 mm. It is an end stop only - it never holds a load if air is lost. The 100 mm stroke is made to order, since the standard maximum for a 12 mm bore is 50 mm.
No - the ACPJ family is discontinued. The current-production replacement is the ACEJ12X100, a drop-in in the same bore, stroke and force class; confirm the ISO 21287 mounting dimensions before swapping, as the ACP is DIN-standard. This unit carries the optional -S magnet, so CMSE / DMSE reed or solid-state switches can be mounted. The body is hard-anodized aluminium with an S45C hard-chrome rod, a fixed TPU bumper at each end, an M3x0.5 female rod thread and M5x0.8 ports, running on 0.15-1.0 MPa (22-145 psi) filtered air.
Related AirTAC ACE Cylinders
Request a Quote for the ACEJ12X100-30S
Send us the quantity and destination. We confirm price, stock and lead time on the ACEJ12X100-30S replacement — usually within 7-8 hours.