This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACEJ12X70-10, 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 ACPJ12X70-10
The AirTAC ACPJ Adjustable Compact Cylinder ACPJ12X70-10 is a double acting, double rod, adjustable stroke DIN-standard tight/compact air cylinder with a Ø12mm bore and 70mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACEJ12X70-10 (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ12 mm
- Stroke70 mm
- Port sizeM5×0.8
- Acting typeDouble acting, double rod, adjustable stroke
- Rod threadM3×0.5
- StatusDiscontinued → ACEJ12X70-10
- 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 ACPJ12X70-10
The ACPJ12X70-10 is a double acting compact cylinder with an adjustable extend stroke: a stop screw trims the ordered 70 mm stroke by up to 10 mm, giving a usable range of 60-70 mm. Its 12 mm bore delivers 56.5 N push and 42.4 N pull at 0.5 MPa (79.2 / 59.4 N at 0.7 MPa). The 70 mm stroke is longer than the 50 mm maximum standard stroke for this bore, so it is a made-to-order item. Note that this model is discontinued; the current-production replacement is the ACEJ12X70.
The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into slim fixtures and guarding where a full-length body will not fit. A fixed TPU bumper sits at both ends and the hard-anodized aluminium body carries an S45C hard-chrome rod with a female M3x0.5 thread. As a sizing rule of thumb, plan for roughly 34 N of real work at 0.5 MPa (about 0.6 of the rated push), which lifts about 2.9 kg vertically with a 2:1 margin. No magnet is fitted, so position switches cannot be used unless you order the optional -S magnet code.
Airtac ACPJ Adjustable Compact Cylinder ACPJ12X70-10 Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ12X70-10 |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ12X70-10 |
| Bore size | Ø12 mm |
| Stroke | 70 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 ACEJ12X70-10 (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 ACPJ12X70-10
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 12 | Bore size in mm. |
| ×70 | Stroke length in mm. |
| -10 | 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 ACPJ12X70-10 Is Used
Small-part ejection on assembly stations
The 60-70 mm trimmed stroke and 56.5 N push at 0.5 MPa suit knocking light clips or pins off a fixture, while the short body fits inside tight machine framing.
Sample pusher in compact lab automation
The 12 mm bore gives gentle force for sliding vials or trays, and the female M3x0.5 rod thread accepts small custom tooling; the M5x0.8 port keeps tubing runs minimal.
Micro press for connector crimping
With about 34 N of practical working force at 0.5 MPa (roughly 2.9 kg vertical lift), this cylinder handles low-force seating of small terminals in jig-built benches.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ12X70-10 with the ACEJ12X70-10
At 12 mm bore this is the smallest force class in the range: 56.5 N push at 0.5 MPa. Step up to the 16 mm bore for 100.5 N push, or downsize only if your load is under about 34 N. The adjuster is a mechanical end stop for the extend stroke, not a mid-stroke lock, so the rod still drifts if air is lost. Mounting is FA/FB flange or LB foot on the standard face. If you need sensors, order the -S version with the optional magnet for CMSE / DMSE switches. For new projects, specify the ACEJ12X70 instead, and confirm the ISO 21287 mounting dimensions before swapping from this DIN-standard ACP body.
Replacement checklist
- ✓ Current-production ACE → ACEJ12X70-10
- ✓ 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 ACPJ12X70-10 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. Bore is 12 mm, stroke 70 mm (made to order, above the 50 mm standard maximum) with a 10 mm adjustment window, rod 6 mm with female M3x0.5 thread, port M5x0.8, operating pressure 0.15-1.0 MPa (22-145 psi), proof 1.5 MPa (215 psi), speed 30-500 mm/s, temperature -20 to +70 C, and a fixed TPU bumper at both ends.
Only if the optional -S magnet was ordered; this version has no magnet, so no CMSE or DMSE switch can be mounted. The ACPJ family is discontinued, and the current drop-in is the ACEJ12X70 (swap the P for an E) in the same bore, stroke and force class. Confirm the ISO 21287 mounting dimensions before swapping, since the ACP body follows the older DIN-standard footprint.
Related AirTAC ACE Cylinders
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