This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACEJ20X150-30B — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACEJ20X150-30B 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 ACPJ20X150-30B
The AirTAC Airtac ACPJ Adjustable Compact Cylinder ACPJ20X150-30B 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 ACEJ20X150-30B (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 → ACEJ20X150-30B
- 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 ACPJ20X150-30B
This double acting compact cylinder trims its own extend stroke on site: the -30 stop screw shortens the 150 mm stroke by up to 30 mm, giving a usable 120-150 mm range without changing hardware. The 20 mm bore delivers 157.1 N push and 117.8 N pull at 0.5 MPa, rising to 219.9 N at 0.7 MPa, with a theoretical peak of 32 kgf at 1.0 MPa. Note the 150 mm stroke exceeds the 100 mm standard maximum for bore 20, so it is a made-to-order build.
The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into deep fixtures and narrow gantries where a full-length body will not reach. The 150 mm stroke also gives real reach: at 0.5 MPa the push force works out to roughly 16 kgf of raw thrust, so plan for about 9 kg of vertical lift with a 2:1 margin. A fixed TPU bumper sits at both ends, the hard-anodized aluminium body carries an S45C hard-chrome rod, and the B code gives a male rod thread. This model is discontinued; the current-production replacement is ACEJ20X150, so confirm ISO 21287 mounting dimensions before swapping.
Airtac ACPJ Adjustable Compact Cylinder ACPJ20X150-30B Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ20X150-30B |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ20X150-30B |
| 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 ACEJ20X150-30B (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 ACEJ20X150-30B 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 ACPJ20X150-30B
| 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 ACPJ20X150-30B Is Used
Pick-and-place drop station
The 120-150 mm adjustable window lets a line technician dial the exact drop height for trays on a packaging conveyor, with 157.1 N push at 0.5 MPa handling parts up to about 9 kg vertically.
Injection mold slide actuation
A 150 mm stroke clears deep mold cores in a tight press-side jig, and the short body fits where an ISO 15552 profile cylinder would overhang the tool plate.
Lab dispensing Z-axis
Male rod thread (B code) accepts a custom dispensing needle holder; the stop screw sets a repeatable 120-150 mm downstroke for test-tube filling at 30-500 mm/s.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ20X150-30B with the ACEJ20X150-30B
Size both ways: if 157.1 N at 0.5 MPa is more than your load needs, the 16 mm bore (100.5 N push) saves space; if you need more, the next class up in the ACE range adds force at the same short body. The adjuster is a mechanical end stop for the extend stroke only - it does not hold position on air loss, so add a locking valve if the load must stay put. FA/FB flange and LB foot mountings bolt to the standard ISO 21287 face. This unit has no magnet because the -S code was not ordered; if you later need CMSE / DMSE switch positions, order the -S variant or the ACEJ equivalent. Replacement: ACEJ20X150.
Replacement checklist
- ✓ Current-production ACE → ACEJ20X150-30B
- ✓ 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 ACPJ20X150-30B 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. The theoretical maximum is 32 kgf at 1.0 MPa. Operating pressure is 0.15-1.0 MPa (22-145 psi) with 1.5 MPa (215 psi) proof pressure, and speed runs 30-500 mm/s. The 150 mm stroke is made to order because the bore 20 standard maximum is 100 mm.
An external stop screw trims the extend stroke anywhere within the ordered 30 mm window, so the effective range is 120-150 mm; it shortens the stroke only and acts as an end stop, not a mid-stroke lock. The ACPJ family is discontinued - the current drop-in is ACEJ20X150 (same bore, stroke and force class). Confirm the ISO 21287 mounting dimensions before swapping, since the ACP was built to a DIN standard.
Related AirTAC ACE Cylinders
Request a Quote for the ACEJ20X150-30B
Send us the quantity and destination. We confirm price, stock and lead time on the ACEJ20X150-30B replacement — usually within 7-8 hours.