This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACEJ20X150-30SB — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACEJ20X150-30SB 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 ACPJ20X150-30SB
The AirTAC Airtac ACPJ Adjustable Compact Cylinder ACPJ20X150-30SB 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 ACEJ20X150-30SB (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 → ACEJ20X150-30SB
- 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 ACPJ20X150-30SB
This is a double acting compact cylinder with an adjustable extend stroke: the -30 code gives a 30 mm stop-screw window, so the 150 mm stroke can be trimmed on site anywhere between 120 and 150 mm. The 20 mm bore delivers 157.1 N push and 117.8 N pull at 0.5 MPa, rising to 219.9 N push at 0.7 MPa, with a theoretical peak of 32 kgf at 1.0 MPa. The 150 mm stroke exceeds the 100 mm standard maximum for this bore, so it is a made-to-order build. This model is discontinued; the current-production replacement is the ACEJ20X150, which matches the same bore, stroke and force class.
The short ISO 21287-class body saves roughly 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight clamping fixtures and machine guards. A fixed TPU bumper sits at both ends and the male rod thread (B code) suits external knuckles. Because the -S magnet is fitted, CMSE / DMSE reed or solid-state switches can be mounted directly on the body. As a rule of thumb, plan on about 94 N of usable push at 0.5 MPa, which lifts roughly 9 kg vertically with a 2:1 margin. Operating range is 0.15-1.0 MPa (22-145 psi) at 30-500 mm/s.
Airtac ACPJ Adjustable Compact Cylinder ACPJ20X150-30SB Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ20X150-30SB |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ20X150-30SB |
| 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 ACEJ20X150-30SB (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 (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 ACEJ20X150-30SB 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 ACPJ20X150-30SB
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 20 | Bore size in mm. |
| ×150 | 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 ACPJ20X150-30SB Is Used
Clamp fixture trimming
A 30 mm window lets a jig builder trim the 150 mm extend stroke to clamp 120-150 mm part heights on one fixture without swapping cylinders.
Small carton ejector
With about 94 N of usable push at 0.5 MPa, the 20 mm bore ejects lightweight cartons or blisters on a packaging line at up to 500 mm/s.
Position-monitored gate
The fitted -S magnet accepts CMSE / DMSE switches, so a compact guard or gate can report open and closed positions to the PLC.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ20X150-30SB with the ACEJ20X150-30SB
Size the bore both ways: the 16 mm bore gives 100.5 N push at 0.5 MPa, while stepping up to the next force class adds headroom for heavier clamps; this 20 mm bore sits in between with 157.1 N. The stop screw only shortens the extend stroke - it is not a mid-stroke lock, so on air loss the piston still drifts and cannot hold a load. Mounting options include FA/FB flange and LB foot plus I/Y rod knuckles on the ISO 21287 face. Note the ACEJ20X150 as the drop-in successor and confirm ISO 21287 mounting dimensions before swapping, since the ACP is DIN-standard.
Replacement checklist
- ✓ Current-production ACE → ACEJ20X150-30SB
- ✓ 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 ACPJ20X150-30SB 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; theoretical maximum is 32 kgf at 1.0 MPa. The bore is 20 mm with a 10 mm rod, M5x0.8 ports, PT body thread and male rod thread. Operating pressure is 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), speed 30-500 mm/s, temperature -20 to +70 C, and the 150 mm stroke is a made-to-order length above the 100 mm standard maximum for this bore.
An external stop screw shortens the extend stroke by up to 30 mm, giving a usable range of 120-150 mm; it cannot lengthen the stroke past the ordered 150 mm and it is not a load-holding brake. The ACPJ family is discontinued - the current-production drop-in is the ACEJ20X150 (P swapped for E), in the same bore, stroke and force class. Confirm the ISO 21287 mounting dimensions before swapping, because the ACP is DIN-standard.
Related AirTAC ACE Cylinders
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