This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACEJ20X15-20 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACEJ20X15-20 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 ACPJ20X15-20
The AirTAC Airtac ACPJ Adjustable Compact Cylinder ACPJ20X15-20 is a double acting, adjustable stroke DIN-standard tight/compact air cylinder with a Ø20mm bore and 15mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACEJ20X15-20 (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ20 mm
- Stroke15 mm
- Port sizeM5×0.8
- Acting typeDouble acting, adjustable stroke
- Rod threadM6×1.0
- StatusDiscontinued → ACEJ20X15-20
- 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 ACPJ20X15-20
A double acting compact cylinder with an adjustable extend stroke, the ACPJ20X15-20 uses a 20 mm bore and a 15 mm base stroke that a stop screw trims by up to 20 mm on site, giving a usable range of 0-15 mm. At 0.5 MPa it pushes 157.1 N and pulls 117.8 N; at 0.7 MPa those rise to 219.9 N and 164.9 N. The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight fixtures a full-length cylinder cannot reach.
Plan on roughly 94 N of real work at 0.5 MPa (about 60% of the rated push), which is a vertical lift of about 9 kg - halve it for a 2:1 margin and you can safely raise parts of about 4-5 kg. The hard-anodized aluminium body carries a fixed TPU bumper at both ends, the S45C rod ends in a female M6x1.0 thread, and air ports are M5x0.8. Note: this model is discontinued. The current-production drop-in is the ACEJ20X15 in the same bore, stroke and force class - confirm ISO 21287 mounting dimensions before swapping.
Airtac ACPJ Adjustable Compact Cylinder ACPJ20X15-20 Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ20X15-20 |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ20X15-20 |
| Bore size | Ø20 mm |
| Stroke | 15 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 ACEJ20X15-20 (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 ACEJ20X15-20 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 ACPJ20X15-20
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 20 | Bore size in mm. |
| ×15 | Stroke length in mm. |
| -20 | 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 ACPJ20X15-20 Is Used
PCB fixture clamping
The 0-15 mm adjustable window lets a test bench clamp thin circuit boards with a repeatable short stroke, using about 94 N of usable force at 0.5 MPa.
Blister pack push-off
A 15 mm stroke with 157.1 N push at 0.5 MPa nudges finished blister packs off a forming station conveyor without disturbing the next cavity.
Lab sample press
A compact analytical instrument press uses the trimmed extend stroke to seat sample vials, lifting or pressing parts of about 4-5 kg with a 2:1 margin.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ20X15-20 with the ACEJ20X15-20
At 157.1 N push (0.5 MPa) this 20 mm bore suits clamping and positioning loads up to about 94 N with margin. Step down to the 16 mm bore (100.5 N push) for lighter ejection tasks, or up to a 32 mm bore when you need well over 200 N. The 15 mm stroke can be trimmed anywhere in the 0-15 mm window by the external stop; it shortens the extend stroke only and will not hold a load if air is lost. FA/FB flange and LB foot mounts bolt to the standard face, and order the -S code if you later need CMSE / DMSE switches - this version has no magnet. Replacement: ACEJ20X15.
Replacement checklist
- ✓ Current-production ACE → ACEJ20X15-20
- ✓ 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 ACPJ20X15-20 FAQ
At 0.5 MPa it pushes 157.1 N and pulls 117.8 N; at 0.7 MPa push is 219.9 N and pull 164.9 N. Theoretical maximum is 32 kgf at 1.0 MPa. Operating pressure is 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), speed 30-500 mm/s, and the port is M5x0.8.
The -20 code is a 20 mm adjustment window: an external stop screw shortens the 15 mm extend stroke on site, so the usable range is 0-15 mm. It is a mechanical end stop, not a mid-stroke lock - the rod still drifts if air is lost. The ACPJ family is discontinued; the current drop-in is the ACEJ20X15 (same bore, stroke and force class). Confirm ISO 21287 mounting dimensions before swapping, and order the -S version if you need the optional magnet for CMSE / DMSE switches.
Related AirTAC ACE Cylinders
Request a Quote for the ACEJ20X15-20
Send us the quantity and destination. We confirm price, stock and lead time on the ACEJ20X15-20 replacement — usually within 7-8 hours.