This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACEJ20X100-50SB — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACEJ20X100-50SB 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 ACPJ20X100-50SB
The AirTAC Airtac ACPJ Adjustable Compact Cylinder ACPJ20X100-50SB is a double acting, adjustable stroke DIN-standard tight/compact air cylinder with a Ø20mm bore and 100mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACEJ20X100-50SB (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ20 mm
- Stroke100 mm
- Port sizeM5×0.8
- Acting typeDouble acting, adjustable stroke
- Rod threadM6×1.0
- StatusDiscontinued → ACEJ20X100-50SB
- 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 ACPJ20X100-50SB
The ACPJ20X100-50SB is a double acting compact cylinder with an adjustable extend stroke: a stop screw trims the 100 mm travel down by up to 50 mm, giving a usable range of 50-100 mm. At 0.5 MPa the 20 mm bore pushes 157.1 N and pulls 117.8 N, rising to 219.9 N at 0.7 MPa. The male rod thread (B code) and the fitted -S magnet for CMSE / DMSE switches make it easy to wire into a PLC-controlled station. Note this model is discontinued; the current-production replacement is the ACEJ20X100.
The hard-anodized aluminium body keeps the mounting length roughly 50% shorter than an ISO 15552 profile cylinder, so it slots into tight jigs and guarding where a full-length body cannot. In practice, plan on about 94 N of real work at 0.5 MPa (roughly 60% of the rated push), which lifts about 8 kg vertically with a 2:1 margin. Fixed TPU bumpers decelerate at both ends, speed spans 30-500 mm/s, and pressure runs 0.15-1.0 MPa (22-145 psi).
Airtac ACPJ Adjustable Compact Cylinder ACPJ20X100-50SB Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ20X100-50SB |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ20X100-50SB |
| Bore size | Ø20 mm |
| Stroke | 100 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 ACEJ20X100-50SB (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 ACEJ20X100-50SB 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 ACPJ20X100-50SB
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 20 | Bore size in mm. |
| ×100 | 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 ACPJ20X100-50SB Is Used
Carton ejector on a case packer
The 50-100 mm trim range lets one cylinder eject cartons of two heights on a packaging line, with the 157.1 N push at 0.5 MPa clearing a loaded case from the flight.
Part-present stop on an assembly pallet
Used as an extend-stroke stop for aluminum housings arriving on a pallet conveyor; the fitted -S magnet feeds a CMSE switch signal back to the PLC at the set position.
Sample press in a lab automation cell
Presses sample vials into a holder inside a compact guarding frame, where the short ISO 21287 body and about 8 kg vertical-lift margin match the vial weight with room to spare.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ20X100-50SB with the ACEJ20X100-50SB
Size by force: if 157.1 N push at 0.5 MPa is marginal for your load, step up to a 25 mm or 32 mm bore; if you only need around 100 N, the 16 mm bore (100.5 N push at 0.5 MPa) saves space and air. The 50 mm adjustment window suits stations where one cylinder must serve several product lengths - set the stop once and re-trim on changeover. Remember the stop screw is a mechanical end stop only: on air loss the piston still drifts, so add a separate lock if you must hold position. Pair it with FA flange or LB foot mounting and I/Y rod knuckles on the male thread. Before ordering, confirm the ACEJ20X100 replacement matches your ISO 21287 mounting dimensions.
Replacement checklist
- ✓ Current-production ACE → ACEJ20X100-50SB
- ✓ 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 ACPJ20X100-50SB 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 -50 code sets a 50 mm adjustment window: an external stop screw shortens the 100 mm extend stroke by up to 50 mm, so usable travel is 50-100 mm. It is a mechanical end stop, not a mid-stroke lock - on air loss the piston still drifts. Operating pressure is 0.15-1.0 MPa (22-145 psi) and speed is 30-500 mm/s.
The ACPJ20X100-50SB is discontinued. Order the ACEJ20X100, the current ISO 21287 compact cylinder in the same bore, stroke and force class - just swap the P for an E in the code. Because the ACPJ follows the DIN-standard compact format, confirm the ISO 21287 mounting dimensions against your fixture before swapping. FA/FB flanges, LB feet and I/Y rod knuckles bolt to the standard ISO 21287 face, and the M5x0.8 port position carries over. For sensing, order the -S version so CMSE / DMSE switches can be fitted.
Related AirTAC ACE Cylinders
Request a Quote for the ACEJ20X100-50SB
Send us the quantity and destination. We confirm price, stock and lead time on the ACEJ20X100-50SB replacement — usually within 7-8 hours.