This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACEJ12X70-10B, 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 ACPJ12X70-10B
The AirTAC ACPJ Adjustable Compact Cylinder ACPJ12X70-10B 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 ACEJ12X70-10B (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 → ACEJ12X70-10B
- 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 ACPJ12X70-10B
The ACPJ12X70-10B is a double acting compact cylinder with an adjustable extend stroke: a stop screw trims the 70 mm stroke by up to 10 mm, giving a usable range of 60-70 mm on site. This 12 mm bore unit delivers 56.5 N push and 42.4 N pull at 0.5 MPa, rising to 79.2 N push at 0.7 MPa, with a theoretical peak of 11.5 kgf at 1.0 MPa. The 70 mm stroke exceeds the 50 mm standard maximum for bore 12, so it is a made-to-order build. Note this model is discontinued; the current-production replacement is ACEJ12X70.
The short ISO 21287-class body saves roughly 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into slim fixtures, small gantries and guarded stations where a full-length body cannot. In practice, plan on about 34 N of usable push at 0.5 MPa (roughly 60% of the rating), which means this cylinder lifts about 2.9 kg vertically with a 2:1 margin - enough for small covers, sensors or light plastic parts. The rod end is male thread (B code) with a PT port thread, and the fixed TPU bumper at each end simply decelerates the piston; it never locks or holds a load.
Airtac ACPJ Adjustable Compact Cylinder ACPJ12X70-10B Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ12X70-10B |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ12X70-10B |
| 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 ACEJ12X70-10B (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 ACPJ12X70-10B
| 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 ACPJ12X70-10B Is Used
Small-parts ejection in plastic molding
The 56.5 N push at 0.5 MPa and 60-70 mm adjustable range suit nudging finished caps or connectors off a mold nest, with the male rod thread taking a custom ejector tip.
Light gate actuation on packaging lines
A 2.9 kg vertical-lift equivalent handles flipping small test flaps or diverting lightweight cartons, and the short body fits beside tight conveyor guarding.
Sample press in lab automation
About 34 N of working force at 0.5 MPa presses microplate seals or dip-test probes, and the 10 mm stop screw lets technicians fine-tune the press depth without shims.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ12X70-10B with the ACEJ12X70-10B
Bore 12 is the smallest in the ACPJ range, so if your load needs more than about 34 N of working force, step up to bore 16 (100.5 N push at 0.5 MPa) or bore 20 (157.1 N). Match the -10 window only when your jig needs less than 10 mm of stroke trimming; wider windows of 20-100 mm exist for other variants. This unit has no magnet (no S code), so no CMSE or DMSE switch can be fitted - order an -S version if sensing is required. FA flange or LB foot mounts bolt to the standard face. Before ordering, remember the ACPJ is discontinued: specify ACEJ12X70 and confirm the ISO 21287 mounting dimensions against your fixture.
Replacement checklist
- ✓ Current-production ACE → ACEJ12X70-10B
- ✓ 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 ACPJ12X70-10B 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. The -10 code gives a 10 mm adjustment window, so the 70 mm extend stroke can be trimmed anywhere from 60 to 70 mm. Operating pressure is 0.15-1.0 MPa (22-145 psi), speed 30-500 mm/s, with a fixed TPU bumper at both ends. The 70 mm stroke is made to order because the bore 12 standard maximum is 50 mm.
The hard-anodized aluminium body follows the short DIN-standard compact format, saving about 50% of the mounting length of an ISO 15552 profile cylinder, with FA flange or LB foot mounting and an M5x0.8 port. This ACPJ12X70-10B is discontinued: order the ACEJ12X70, which swaps the P for an E and matches the same bore, stroke and force class as the current ISO 21287 drop-in. Confirm the ISO 21287 mounting dimensions against your fixture before swapping, and add the -S code if you need the optional magnet for CMSE or DMSE switches.
Related AirTAC ACE Cylinders
Request a Quote for the ACEJ12X70-10B
Send us the quantity and destination. We confirm price, stock and lead time on the ACEJ12X70-10B replacement — usually within 7-8 hours.