This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACEJ12X110-40S, 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 ACPJ12X110-40S
The AirTAC ACPJ Adjustable Compact Cylinder ACPJ12X110-40S is a double acting, double rod, adjustable stroke DIN-standard tight/compact air cylinder with a Ø12mm bore and 110mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACEJ12X110-40S (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ12 mm
- Stroke110 mm
- Port sizeM5×0.8
- Acting typeDouble acting, double rod, adjustable stroke
- Rod threadM3×0.5
- StatusDiscontinued → ACEJ12X110-40S
- 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 ACPJ12X110-40S
This is a double acting compact cylinder with an adjustable extend stroke: bore 12 mm, ordered stroke 110 mm, and a 40 mm adjustment window set by the -40 code. A stop screw trims the extend stroke on site anywhere in the 70-110 mm range, so one cylinder can be dialled to several jig positions without changing parts. Air works on both faces of the piston, and a fixed TPU bumper at each end absorbs end-of-travel impact. Note that the 110 mm stroke exceeds the 50 mm maximum standard stroke for a 12 mm bore, so this unit is a made-to-order build.
At 0.5 MPa the piston pushes 56.5 N and pulls 42.4 N; at 0.7 MPa those figures rise to 79.2 N and 59.4 N, with a theoretical maximum of 11.5 kgf at 1.0 MPa. As a planning rule, about 34 N (roughly 3 kg of thrust) is a realistic working figure at 0.5 MPa, so treat it as a light-duty actuator for small clamps and sensors-check fixtures. The hard-anodized aluminium body keeps the mounting length about 50% shorter than an ISO 15552 profile cylinder, and the -S code on this model means the magnet is fitted, so CMSE or DMSE reed and solid-state switches can be mounted directly. The ACPJ family is discontinued; the current-production replacement is the ACEJ12X110, and buyers should confirm ISO 21287 mounting dimensions before swapping, since the ACP was built to a DIN-standard footprint.
Airtac ACPJ Adjustable Compact Cylinder ACPJ12X110-40S Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ12X110-40S |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ12X110-40S |
| Bore size | Ø12 mm |
| Stroke | 110 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 ACEJ12X110-40S (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 ACPJ12X110-40S
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 12 | Bore size in mm. |
| ×110 | Stroke length in mm. |
| -40 | 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 ACPJ12X110-40S Is Used
Small-part ejector on an assembly bench
The 56.5 N push at 0.5 MPa is enough to eject pressed-in nylon bushings or light stamped parts from a fixture, while the 70-110 mm adjustable range lets one cylinder serve several die positions.
Position-checked go/no-go gauge station
With the -S magnet fitted, a CMSE switch flags full extension of the 110 mm stroke before a vision check or label head fires, catching mis-loaded workpieces on a small electronics line.
Light hold-down on a PCB test fixture
About 3 kg of usable thrust at 0.5 MPa clamps a circuit board flat against pogo-pin pins without damaging components, and the stop screw sets the exact clamp height per board revision.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ12X110-40S with the ACEJ12X110-40S
Size up or down by force: a 16 mm bore of the same family gives 100.5 N push at 0.5 MPa, while stepping to 20 mm reaches 157.1 N, so pick the 12 mm bore only when your load stays under roughly 34 N of usable thrust. The stop screw shortens the extend stroke only - it never lengthens past 110 mm - and it is a mechanical end stop, not a mid-stroke lock, so the rod can still drift if air is lost. FA/FB flange and LB foot mounts bolt to the standard face, and this -S model carries the optional magnet for CMSE / DMSE switch mounting. For new projects, order the ACEJ12X110 instead, which matches this bore, stroke and force class in current production.
Replacement checklist
- ✓ Current-production ACE → ACEJ12X110-40S
- ✓ 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 ACPJ12X110-40S 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, with a theoretical maximum of 11.5 kgf at 1.0 MPa. The -40 code sets a 40 mm adjustment window: an external stop screw shortens the 110 mm extend stroke anywhere in the 70-110 mm range. It is a mechanical end stop only - on air loss the piston still drifts, so do not rely on it to hold a load. The 110 mm stroke is a made-to-order build because the standard maximum for a 12 mm bore is 50 mm.
No - the ACPJ family is discontinued. The current-production drop-in is the ACEJ12X110, which keeps the same 12 mm bore, 110 mm stroke, 6 mm rod and force class in the ISO 21287 short body that saves about 50% of the mounting length of an ISO 15552 profile cylinder. Before swapping, confirm the ISO 21287 mounting dimensions against your fixture, since the ACP was built to a DIN-standard footprint. This -S model carries the magnet for CMSE / DMSE switches; on the replacement, order the -S code to keep that sensing capability.
Related AirTAC ACE Cylinders
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