This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACEJ20X150-20S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACEJ20X150-20S 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 ACPJ20X150-20S
The AirTAC Airtac ACPJ Adjustable Compact Cylinder ACPJ20X150-20S 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 ACEJ20X150-20S (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 → ACEJ20X150-20S
- 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 ACPJ20X150-20S
Double acting and adjustable, the AirTAC ACPJ20X150-20S pushes 157.1 N and pulls 117.8 N at 0.5 MPa (rising to 219.9 N at 0.7 MPa) from a 20 mm bore. The -20 code gives a 20 mm adjustment window: a stop screw trims the extend stroke anywhere between 130 and 150 mm on site, so one cylinder serves several fixture positions. The 150 mm stroke is beyond the 100 mm standard limit for bore 20, so it is a made-to-order build. Note this model is discontinued; the current-production replacement is the ACEJ20X150.
The 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 sliding doors and guard interlocks. A hard-anodized aluminium body carries an S45C hard-chrome rod, with fixed TPU bumpers at both ends. Because the -S magnet is fitted, CMSE or DMSE reed and solid-state switches mount directly on the body. At 0.5 MPa the push force equals about 16 kgf, so plan for roughly 9-10 kg of vertical lift with a 2:1 margin.
Airtac ACPJ Adjustable Compact Cylinder ACPJ20X150-20S Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ20X150-20S |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ20X150-20S |
| 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 ACEJ20X150-20S (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 ACEJ20X150-20S 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 ACPJ20X150-20S
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 20 | Bore size in mm. |
| ×150 | 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 ACPJ20X150-20S Is Used
Fixture clamp with trimmed stroke
A 20 mm bore delivering 157.1 N at 0.5 MPa clamps aluminium brackets in a machining jig, with the stop screw set to 135 mm so the clamp clears the fixture rail.
Position-verified sliding guard
The fitted -S magnet lets a DMSE switch confirm the guard door is fully open on a packaging line, while the 130-150 mm adjustable range matches the door travel.
Small-parts pusher on a conveyor
Pushes connector trays off a 200 mm-wide belt into a chute; the 16 kgf-class force handles plastic trays, and the short body fits under the side frame.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ20X150-20S with the ACEJ20X150-20S
At 157.1 N push at 0.5 MPa this 20 mm bore sits above the 16 mm size (100.5 N) and below the next class up if you need more than 219.9 N at 0.7 MPa. Remember the stop screw only shortens the extend stroke; it is not a mid-stroke lock, so the rod can still drift if air is lost. FA/FB flange and LB foot mountings bolt to the standard face, and the fitted -S magnet accepts CMSE / DMSE switches. Before ordering, confirm the ISO 21287 dimensions of the ACEJ20X150 replacement, since this ACP build is DIN-standard.
Replacement checklist
- ✓ Current-production ACE → ACEJ20X150-20S
- ✓ 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 ACPJ20X150-20S 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 -20 code gives a 20 mm window, so the extend stroke is trimmed anywhere from 130 to 150 mm with the stop screw. It runs on air filtered to 40 um at 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. The 150 mm stroke is a made-to-order length above the 100 mm standard for bore 20.
Order the ACEJ20X150, the ISO 21287 successor: swap the P for an E and you get the same 20 mm bore, 150 mm stroke and force class in current production. Because the ACPJ follows the older DIN-standard compact format, check the ISO 21287 mounting dimensions and your FA/FB or LB bracket fit before swapping. The ACEJ also carries the optional -S magnet for CMSE / DMSE switches, and its short body keeps the roughly 50% length saving versus an ISO 15552 profile cylinder.
Related AirTAC ACE Cylinders
Request a Quote for the ACEJ20X150-20S
Send us the quantity and destination. We confirm price, stock and lead time on the ACEJ20X150-20S replacement — usually within 7-8 hours.