This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACEJ20X150-40 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACEJ20X150-40 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 ACPJ20X150-40
The AirTAC Airtac ACPJ Adjustable Compact Cylinder ACPJ20X150-40 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 ACEJ20X150-40 (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 → ACEJ20X150-40
- 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 ACPJ20X150-40
The ACPJ20X150-40 is a double acting compact cylinder with an adjustable extend stroke: a stop screw trims the 150 mm stroke by up to 40 mm, giving a usable range of 110-150 mm. At 0.5 MPa it pushes 157.1 N and pulls 117.8 N, rising to 219.9 N at 0.7 MPa, with a theoretical peak of 32 kgf at 1.0 MPa. The 150 mm stroke exceeds the 100 mm standard limit for bore 20, so it is a made-to-order build. This model is discontinued; the current-production replacement is ACEJ20X150.
The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into deep slides and long-stroke gantries where space is tight. A practical sizing rule: keep real work to about 94 N (roughly 60% of the push force), which means it lifts about 8 kg vertically with a 2:1 margin. The hard-anodized aluminium body carries an S45C hard-chrome rod, fixed TPU bumpers sit at both ends, and speed runs 30-500 mm/s. Note that no magnet is fitted - the optional -S code is required before CMSE / DMSE switches can be used.
Airtac ACPJ Adjustable Compact Cylinder ACPJ20X150-40 Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ20X150-40 |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ20X150-40 |
| 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 ACEJ20X150-40 (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 ACEJ20X150-40 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 ACPJ20X150-40
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 20 | Bore size in mm. |
| ×150 | Stroke length in mm. |
| -40 | 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 ACPJ20X150-40 Is Used
Ejection on a plastic injection press
Trims the ejector stroke between 110 and 150 mm with the 40 mm window, pushing finished parts off the mould with 157.1 N at 0.5 MPa.
Long-reach divert arm on a bottling line
The 150 mm made-to-order stroke reaches across a conveyor lane, while the compact body fits under low guard rails.
Lowering a 6 kg fixture onto a CNC pallet
With about 8 kg of vertical lift capability at a 2:1 margin, the cylinder gently seats the fixture and the stop screw sets the exact drop height.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ20X150-40 with the ACEJ20X150-40
Size against neighbours: the 16 mm bore gives 100.5 N push at 0.5 MPa, while stepping up to a larger bore raises force further - pick the 20 mm when your load sits between those classes. The adjuster is a mechanical end stop for the extend stroke only; it does not hold position if air is lost, so add an external lock for load-holding duty. FA/FB flange and LB foot mountings bolt to the ISO 21287 face. Since this unit is discontinued, order ACEJ20X150 as the drop-in successor and confirm ISO 21287 mounting dimensions before the swap.
Replacement checklist
- ✓ Current-production ACE → ACEJ20X150-40
- ✓ 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 ACPJ20X150-40 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. 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, air filtered to 40 um. The port is M5x0.8, the rod is 10 mm with a female M6x1.0 thread, and the 150 mm stroke is non-standard for bore 20 (max standard 100 mm), so it is made to order.
An external stop screw shortens the extend stroke by up to 40 mm within the ordered window, so the effective stroke is anywhere from 110 to 150 mm; it cannot lengthen the stroke beyond 150 mm. Fixed TPU bumpers decelerate at both ends. The ACPJ family is discontinued - the current-production drop-in is ACEJ20X150 (same bore, stroke and force class); confirm ISO 21287 mounting dimensions before swapping.
Related AirTAC ACE Cylinders
Request a Quote for the ACEJ20X150-40
Send us the quantity and destination. We confirm price, stock and lead time on the ACEJ20X150-40 replacement — usually within 7-8 hours.