This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACEJ20X100-40SB — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACEJ20X100-40SB 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 ACPJ20X100-40SB
The AirTAC Airtac ACPJ Adjustable Compact Cylinder ACPJ20X100-40SB 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 ACEJ20X100-40SB (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 → ACEJ20X100-40SB
- 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 ACPJ20X100-40SB
This ACPJ20X100-40SB is a double acting compact cylinder with an adjustable extend stroke: a stop screw trims the 100 mm stroke by up to 40 mm, giving a usable 60-100 mm range set on site. At the 20 mm bore it pushes 157.1 N and pulls 117.8 N at 0.5 MPa, rising to 219.9 N at 0.7 MPa. The hard-anodized aluminium body keeps the mounting length about 50% shorter than an ISO 15552 profile cylinder, so it slots into tight gantries and guarding where a full-length body cannot. Fixed TPU bumpers sit at both ends.
The -S code on this model means the magnet is fitted, so CMSE or DMSE reed and solid-state switches can be clamped to the body for end-of-stroke signals, and the B code gives a male rod thread on the 10 mm rod. In practice the 157.1 N push at 0.5 MPa supports roughly 94 N of real work, which lifts about 9 kg vertically - or around 4 kg with a 2:1 margin. Note this model is discontinued: the current-production replacement is the ACEJ20X100 in the same bore, stroke and force class, so confirm the ISO 21287 mounting dimensions before swapping.
Airtac ACPJ Adjustable Compact Cylinder ACPJ20X100-40SB Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ20X100-40SB |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ20X100-40SB |
| 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 ACEJ20X100-40SB (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 ACEJ20X100-40SB 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 ACPJ20X100-40SB
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 20 | Bore size in mm. |
| ×100 | 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 ACPJ20X100-40SB Is Used
Carton ejector on a case packer
The 60-100 mm adjustable range lets one cylinder eject cartons of different widths on a packaging line, with 157.1 N push at 0.5 MPa clearing a loaded case.
Gantry stop with position feedback
Because the -S magnet is fitted, CMSE or DMSE switches signal the trimmed end position on a pick-and-place gantry, and the male rod thread takes a knuckle directly.
Clamp fixture for machined housings
The short body fits inside a milling fixture where an ISO 15552 profile cylinder would be about twice as long, holding aluminium housings against a hard stop.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ20X100-40SB with the ACEJ20X100-40SB
At 0.5 MPa this 20 mm bore delivers 157.1 N push and 117.8 N pull. If your load needs under about 94 N of usable force, the 16 mm bore (100.5 N push) saves space; if you need more, step up to a 25 mm or larger bore. The 40 mm window suits one cylinder covering several product lengths between 60 and 100 mm. Remember the stop screw only shortens the extend stroke - it is not a mid-stroke lock, so the piston still drifts if air is lost. Pair it with FA/FB flange or LB foot mounts, and order the -S code if you need CMSE / DMSE switch signals. This model is discontinued; the ACEJ20X100 is the drop-in successor - verify ISO 21287 mounting dimensions before ordering.
Replacement checklist
- ✓ Current-production ACE → ACEJ20X100-40SB
- ✓ 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 ACPJ20X100-40SB FAQ
At 0.5 MPa it pushes 157.1 N and pulls 117.8 N; at 0.7 MPa push is 219.9 N and pull 164.9 N. The 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, and the port is M5x0.8. For real work, plan on roughly 94 N (about 9 kg vertical lift) rather than the full rating.
The -40 code sets a 40 mm window: a stop screw on the cylinder shortens the 100 mm extend stroke to any length from 60 to 100 mm. It is a mechanical end stop only - on air loss the piston still drifts, so it never holds a load. Fixed TPU bumpers decelerate at both ends. This ACPJ is discontinued; the current-production ACEJ20X100 is the drop-in replacement in the same bore, stroke and force class - confirm the ISO 21287 mounting dimensions before swapping.
Related AirTAC ACE Cylinders
Request a Quote for the ACEJ20X100-40SB
Send us the quantity and destination. We confirm price, stock and lead time on the ACEJ20X100-40SB replacement — usually within 7-8 hours.