This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACEJ20X150-75 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACEJ20X150-75 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 ACPJ20X150-75
The AirTAC Airtac ACPJ Adjustable Compact Cylinder ACPJ20X150-75 is a double acting, adjustable stroke DIN-standard tight/compact air cylinder with a Ø20mm bore and 150mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACEJ20X150-75 (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ20 mm
- Stroke150 mm
- Port sizeM5×0.8
- Acting typeDouble acting, adjustable stroke
- Rod threadM6×1.0
- StatusDiscontinued → ACEJ20X150-75
- 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 ACPJ20X150-75
This is a double acting compact cylinder with an adjustable extend stroke, built on the DIN-standard ACP short body: hard-anodized aluminium with an S45C hard-chrome 10 mm rod and a fixed TPU bumper at each end. The 20 mm bore delivers 157.1 N push and 117.8 N pull at 0.5 MPa (219.9 N push at 0.7 MPa), and the 150 mm stroke is a non-standard, made-to-order length above the 100 mm standard maximum for this bore. The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight gantries and guarding where a full-length body will not fit.
The -75 code sets a 75 mm adjustment window: an external stop screw trims the extend stroke anywhere from 75 mm up to the full 150 mm, so one cylinder covers several stroke settings on the same fixture. Note the stop is a mechanical end stop only - on air loss the piston still drifts, so it never holds a load. As a rule of thumb, plan on roughly 94 N of usable push at 0.5 MPa, which lifts about 9 kg vertically with a 2:1 margin. This model is discontinued; the current-production replacement is the ACEJ20X150, so confirm the ISO 21287 mounting dimensions before swapping.
Airtac ACPJ Adjustable Compact Cylinder ACPJ20X150-75 Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ20X150-75 |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ20X150-75 |
| Bore size | Ø20 mm |
| Stroke | 150 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | M5×0.8 |
| Rod thread | M6×1.0 |
| 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 100 mm |
Specifications follow the official AirTAC ACP datasheet (now discontinued). The ACEJ20X150-75 (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 (Ø20mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 157 N | 118 N |
| 0.7 MPa | 220 N | 165 N |
| Max (@1.0 MPa) | 32 kgf | |
The ACEJ20X150-75 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 ACPJ20X150-75
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 20 | Bore size in mm. |
| ×150 | Stroke length in mm. |
| -75 | 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 ACPJ20X150-75 Is Used
Indexing fixture on a CNC line
The 75 mm adjustment window lets one cylinder serve several part families by trimming the extend stroke between 75 and 150 mm, with about 157.1 N of push at 0.5 MPa for light clamping.
Packaging pusher at a carton diverter
At 30-500 mm/s the rod diverts small cartons on a conveyor, and the short body fits the narrow space beside the belt where a full-length profile cylinder cannot.
Light parts lift-off from a press nest
With roughly 9 kg of vertical lift capacity at a 2:1 margin, the 20 mm bore lifts small brackets or castings out of a nest; the TPU bumpers soften the ends of travel.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ20X150-75 with the ACEJ20X150-75
Size against the 0.5 MPa figures: the 20 mm bore gives 157.1 N push and 117.8 N pull, while a 16 mm bore offers 100.5 N push and a 25 mm class bore steps up beyond this range - confirm larger options from the datasheet. The 150 mm stroke exceeds the 100 mm standard maximum for bore 20, so it is made to order. FA/FB flange or LB foot mounts bolt to the standard face, and rod knuckles attach to the M6x1.0 female thread. No magnet is fitted on this version; order the -S code if CMSE / DMSE switch sensing is needed. For new builds, specify the ACEJ20X150 instead.
Replacement checklist
- ✓ Current-production ACE → ACEJ20X150-75
- ✓ 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 ACPJ20X150-75 FAQ
At 0.5 MPa it pushes 157.1 N and pulls 117.8 N; at 0.7 MPa it pushes 219.9 N and pulls 164.9 N, with a theoretical maximum of 32 kgf at 1.0 MPa. It is double acting with a 75 mm adjustment window on a 150 mm made-to-order stroke, runs on 0.15-1.0 MPa (22-145 psi) air filtered to 40 um, proof pressure 1.5 MPa (215 psi), temperature -20 to +70 C, speed 30-500 mm/s, M5x0.8 port and M6x1.0 female rod thread.
An external stop screw shortens the extend stroke by up to 75 mm, giving a usable range of 75-150 mm; it is a mechanical end stop, not a mid-stroke lock, so the piston still drifts if air is lost. The ACPJ family is discontinued - the current-production drop-in is the ACEJ20X150 in the same bore, stroke and force class. Confirm the ISO 21287 mounting dimensions before swapping, since the ACP is DIN-standard.
Related AirTAC ACE Cylinders
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