This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACEJ12X70-30SB — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACEJ12X70-30SB in place of this model. 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 ACPJ12X70-30SB
The AirTAC Airtac ACPJ Adjustable Compact Cylinder ACPJ12X70-30SB is a double acting, 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 ACEJ12X70-30SB (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ12 mm
- Stroke70 mm
- Port sizeM5×0.8
- Acting typeDouble acting, adjustable stroke
- Rod threadM3×0.5
- StatusDiscontinued → ACEJ12X70-30SB
About the Airtac ACPJ Adjustable Compact Cylinder ACPJ12X70-30SB
The ACPJ12X70-30SB is a double acting compact cylinder with an adjustable stroke: air drives the rod out and pulls it back, and an external stop screw trims the extend stroke anywhere in the 30 mm window, giving a usable 40-70 mm range. This 12 mm bore unit delivers 56.5 N push and 42.4 N pull at 0.5 MPa (79.2 / 59.4 N 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 limit for bore 12, so it is a made-to-order build. Note: this model is discontinued; the current-production replacement is ACEJ12X70, so confirm ISO 21287 mounting dimensions before swapping.
Its short ISO 21287-class body saves roughly 50% of the mounting length of an ISO 15552 profile cylinder, which is why it slots into cramped pick-and-place heads and small test rigs. Plan on about 34 N (0.6 x 56.5 N) of real work at 0.5 MPa, and expect roughly 3 kg of vertical lift with a 2:1 margin. The -S code fitted here adds the magnet, so CMSE / DMSE switches can be mounted for end-of-stroke sensing. A fixed TPU bumper at each end absorbs terminal impact, the hard-anodized aluminium body carries an S45C hard-chrome rod with a male thread, and speed spans 30-500 mm/s over 0.15-1.0 MPa (22-145 psi).
Airtac ACPJ Adjustable Compact Cylinder ACPJ12X70-30SB Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ12X70-30SB |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ12X70-30SB |
| Bore size | Ø12 mm |
| Stroke | 70 mm |
| Acting type | Double acting, 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 ACEJ12X70-30SB (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 | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 57 N | 42 N |
| 0.7 MPa | 79 N | 59 N |
| Max (@1.0 MPa) | 12 kgf | |
The ACEJ12X70-30SB produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac ACPJ Adjustable Compact Cylinder ACPJ12X70-30SB
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 12 | Bore size in mm. |
| ×70 | 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 (adjustable stroke).
Where the Airtac ACPJ Adjustable Compact Cylinder ACPJ12X70-30SB Is Used
Micro ejection on SMT fixtures
The 34 N usable push at 0.5 MPa is enough to eject small PCB carriers or stamped contacts from a nest, and the 40-70 mm trimmed stroke clears shallow pockets without overtravel.
Lab sample press
With about 3 kg of vertical lift capacity at a 2:1 margin, this cylinder lowers a probe or sampling head onto vials and trays in compact analytical benchtop units.
Position-verified gating in small assemblies
The fitted -S magnet with CMSE / DMSE switches confirms extend and retract on a 40-70 mm gate stroke, ideal for verifying part presence before a screwdriver or labeler cycle.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ12X70-30SB with the ACEJ12X70-30SB
Bore 12 is the smallest in the family; if 56.5 N at 0.5 MPa is marginal for your load, step up to bore 16 (100.5 N push at 0.5 MPa) or bore 20 (157.1 N). The 30 mm adjuster only shortens the extend stroke within 40-70 mm - it is a mechanical end stop, not a mid-stroke lock, so the rod still drifts if air is lost. Male rod thread (B code) and PT ports suit external knuckles and standard fittings; the fitted -S magnet pairs with CMSE / DMSE switches. Order ACEJ12X70 as the drop-in successor and verify ISO 21287 mounting dimensions first.
Replacement checklist
- ✓ Current-production ACE → ACEJ12X70-30SB
- ✓ 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 ACPJ12X70-30SB FAQ
At 0.5 MPa it 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 maximum of 11.5 kgf at 1.0 MPa. The -30 code sets a 30 mm adjustment window, so the 70 mm extend stroke can be trimmed anywhere down to 40 mm with the external stop screw. The 70 mm stroke is above the 50 mm standard for bore 12, so it is made to order. Running 0.15-1.0 MPa (22-145 psi) at 30-500 mm/s, plan on about 34 N of usable push at 0.5 MPa.
It is a short-body compact cylinder in the ISO 21287 class - its hard-anodized aluminium body with threaded aluminium covers saves about 50% of the mounting length of an ISO 15552 profile cylinder, with a fixed TPU bumper at each end, a male-threaded S45C hard-chrome rod, PT ports (M5x0.8) and FA/FB flange or LB foot mounting. The -S magnet fitted on this unit accepts CMSE / DMSE switches. The ACPJ family is discontinued; ACEJ12X70 is the current drop-in successor in the same bore, stroke and force class - confirm the ISO 21287 mounting dimensions before converting.
Related AirTAC ACE Cylinders
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