This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACEJ20X100-100S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACEJ20X100-100S 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 ACPJ20X100-100S
The AirTAC Airtac ACPJ Adjustable Compact Cylinder ACPJ20X100-100S 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 ACEJ20X100-100S (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 → ACEJ20X100-100S
- 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 ACPJ20X100-100S
The ACPJ20X100-100S is a discontinued double acting compact cylinder with an adjustable extend stroke: a stop screw trims the 100 mm stroke anywhere within the ordered 100 mm window, so one cylinder covers a 0-100 mm working range. Air pushes the piston out and pulls it back, and at 0.5 MPa the 20 mm bore delivers 157.1 N on extend and 117.8 N on retract. The -S code on this model means the magnet is fitted, so CMSE or DMSE reed and solid-state switches can be clipped on for end-of-stroke signalling.
The short ISO 21287-class body saves roughly 50% of the mounting length of an ISO 15552 profile cylinder, which is why it slots into tight fixtures and sliding guards. For sizing, treat about 0.6 of the push force as usable, so roughly 94 N of real work at 0.5 MPa - and halving the 16 kgf thrust equivalent means it lifts about 8 kg vertically with a sensible margin. Note that the adjuster is a mechanical end stop only: on air loss the piston still drifts, so it is not a mid-stroke lock. This model is discontinued; the current drop-in is the ACEJ20X100, and you should confirm the ISO 21287 mounting dimensions before swapping since the ACP is DIN-standard.
Airtac ACPJ Adjustable Compact Cylinder ACPJ20X100-100S Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ20X100-100S |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ20X100-100S |
| 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 ACEJ20X100-100S (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 ACEJ20X100-100S 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 ACPJ20X100-100S
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 20 | Bore size in mm. |
| ×100 | Stroke length in mm. |
| -100 | 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 ACPJ20X100-100S Is Used
Carton reject pusher
On a packaging line, the 0-100 mm trim range lets one cylinder eject misprinted cartons of different widths without changing hardware, with the 157.1 N push easily clearing a light corrugated box.
Gantry part present check
With the -S magnet fitted, CMSE or DMSE switches confirm the probe has fully seated on small aluminium housings, and the short body fits inside the gantry frame where a full-length profile cylinder will not.
Fixture clamp with trimmable reach
On a small machining fixture, the stop screw is set to clamp thin 6 mm plates one day and 14 mm blanks the next, all within the 100 mm window, using about 94 N of usable clamping force at 0.5 MPa.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ20X100-100S with the ACEJ20X100-100S
At 20 mm bore this sits in the middle of the ACPJ range: the 16 mm bore gives 100.5 N push at 0.5 MPa if your load is lighter, while stepping up to a 32 mm-class ACE gives far more force if 157.1 N is marginal. The 100 mm stroke matches the maximum standard stroke for this bore, so no made-to-order length is needed. FA/FB flange and LB foot mountings bolt to the ISO 21287 face, and the fitted -S magnet pairs with CMSE / DMSE switches. Order the ACEJ20X100 as the current-production replacement.
Replacement checklist
- ✓ Current-production ACE → ACEJ20X100-100S
- ✓ 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 ACPJ20X100-100S FAQ
It runs on 0.15-1.0 MPa (22-145 psi) of filtered air with a 1.5 MPa (215 psi) proof pressure. At 0.5 MPa it pushes 157.1 N and pulls 117.8 N; at 0.7 MPa that rises to 219.9 N push and 164.9 N pull. The theoretical maximum is 32 kgf at 1.0 MPa. Speed range is 30-500 mm/s and the rod is 10 mm with an M6x1.0 female thread.
An external stop screw shortens the extend stroke anywhere within the ordered 100 mm window, giving a usable 0-100 mm range; it cannot lengthen the stroke past 100 mm. The adjuster is a mechanical end stop, not a load-holding lock. The ACPJ family is discontinued - order the ACEJ20X100 (ISO 21287, same bore, stroke and force class) and confirm its mounting dimensions before swapping, since the ACP is DIN-standard.
Related AirTAC ACE Cylinders
Request a Quote for the ACEJ20X100-100S
Send us the quantity and destination. We confirm price, stock and lead time on the ACEJ20X100-100S replacement — usually within 7-8 hours.