This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACEJ20X110-50S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACEJ20X110-50S 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 ACPJ20X110-50S
The AirTAC Airtac ACPJ Adjustable Compact Cylinder ACPJ20X110-50S is a double acting, adjustable stroke DIN-standard tight/compact air cylinder with a Ø20mm bore and 110mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACEJ20X110-50S (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ20 mm
- Stroke110 mm
- Port sizeM5×0.8
- Acting typeDouble acting, adjustable stroke
- Rod threadM6×1.0
- StatusDiscontinued → ACEJ20X110-50S
- 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 ACPJ20X110-50S
The ACPJ20X110-50S is a double acting compact cylinder with an adjustable extend stroke: the -50 stop screw trims the 110 mm stroke down to a usable 60-110 mm on site. At 0.5 MPa it pushes 157.1 N and pulls 117.8 N, rising to 219.9 N at 0.7 MPa. The 110 mm stroke exceeds the 100 mm standard maximum for bore 20, so this unit is a made-to-order build. Note: the ACPJ family is discontinued - the current-production replacement is the ACEJ20X110, so confirm ISO 21287 mounting dimensions before swapping.
Its short ISO 21287-class body saves roughly 50% of the mounting length of an ISO 15552 profile cylinder, which suits tight gantries and guarded stations. The hard-anodized aluminium body carries an S45C hard-chrome rod, fixed TPU bumpers at both ends, and the -S magnet this model carries accepts CMSE / DMSE switches. As a rule of thumb, plan on about 94 N (roughly 9.6 kg) of usable vertical work at 0.5 MPa rather than the full 157.1 N rating.
Airtac ACPJ Adjustable Compact Cylinder ACPJ20X110-50S Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ20X110-50S |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ20X110-50S |
| Bore size | Ø20 mm |
| Stroke | 110 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 ACEJ20X110-50S (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 ACEJ20X110-50S 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 ACPJ20X110-50S
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 20 | Bore size in mm. |
| ×110 | Stroke length in mm. |
| -50 | 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 ACPJ20X110-50S Is Used
Fixture clamping on CNC pallets
The 60-110 mm adjustable range lets one cylinder clamp both raw and machined part heights on a machining-centre pallet, with 157.1 N push at 0.5 MPa holding light steel blanks.
Position-checked ejector in an assembly cell
With the -S magnet fitted, CMSE or DMSE switches confirm the eject stroke on a small electronics housing line, while the stop screw trims throw for two product variants.
Carton hold-down on a case packer
A 110 mm stroke presses folding flaps on snack-carton trays; the compact short body fits inside the guarding where a full-length profile cylinder would not.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ20X110-50S with the ACEJ20X110-50S
Size against neighbours: bore 16 delivers 100.5 N push at 0.5 MPa, while bore 20 gives 157.1 N - step up only if the load demands it. The 50 mm window suits stations where product sizes vary and the extend stroke must be re-set without swapping cylinders. Remember the stop screw only shortens the extend stroke and does not hold a load if air is lost. FA/FB flange or LB foot mountings bolt to the ISO 21287 face; PT ports, female M6x1.0 rod thread. For new designs, order the ACEJ20X110 instead.
Replacement checklist
- ✓ Current-production ACE → ACEJ20X110-50S
- ✓ 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 ACPJ20X110-50S FAQ
At 0.5 MPa it pushes 157.1 N and pulls 117.8 N; at 0.7 MPa, 219.9 N push and 164.9 N pull; theoretical maximum is 32 kgf at 1.0 MPa. Operating range is 0.15-1.0 MPa (22-145 psi), proof 1.5 MPa (215 psi), speed 30-500 mm/s, temperature -20 to +70 C, air filtered to 40 um, M5x0.8 ports and a 10 mm hard-chrome rod with female M6x1.0 thread. The 110 mm stroke is a made-to-order length above the 100 mm standard maximum for bore 20.
No - the ACPJ family is discontinued. The current-production drop-in is the ACEJ20X110, which keeps the same bore, stroke and force class in the ISO 21287 short-body format. Because the ACPJ was built to a DIN-standard footprint, verify the ISO 21287 mounting dimensions against your fixture before swapping. The fixed TPU bumpers at both ends simply decelerate the piston; they never lock or hold a load.
Related AirTAC ACE Cylinders
Request a Quote for the ACEJ20X110-50S
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