This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACEJ20X100-20 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACEJ20X100-20 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 ACPJ20X100-20
The AirTAC Airtac ACPJ Adjustable Compact Cylinder ACPJ20X100-20 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 ACEJ20X100-20 (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 → ACEJ20X100-20
- 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 ACPJ20X100-20
The ACPJ20X100-20 is a double acting compact cylinder with an adjustable extend stroke: the -20 stop screw trims the 100 mm stroke by up to 20 mm on site, giving a usable range of 80-100 mm. At 0.5 MPa the 20 mm bore delivers 157.1 N push and 117.8 N pull, rising to 219.9 N push at 0.7 MPa. Its short ISO 21287-class body saves roughly 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight gantries and guarding where a full-length body cannot. Note this model is discontinued; the current-production drop-in is the ACEJ20X100.
Practical sizing: keep real work to about 94 N at 0.5 MPa (roughly 0.6 of the push rating), which means this cylinder lifts about 8 kg vertically with a 2:1 margin. The hard-anodized aluminium body carries an S45C hard-chrome 10 mm rod with a female M6x1.0 thread, M5x0.8 ports, fixed TPU bumpers at both ends and a speed window of 30-500 mm/s. No magnet is fitted on this version; the optional -S code adds one for CMSE / DMSE switches. Confirm ISO 21287 mounting dimensions before swapping to the ACEJ.
Airtac ACPJ Adjustable Compact Cylinder ACPJ20X100-20 Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ20X100-20 |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ20X100-20 |
| 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 ACEJ20X100-20 (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 ACEJ20X100-20 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 ACPJ20X100-20
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 20 | Bore size in mm. |
| ×100 | Stroke length in mm. |
| -20 | 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 ACPJ20X100-20 Is Used
CNC fixture clamping
Trims 80-100 mm of extend stroke to clamp aluminium extrusions on a machining fixture, with about 94 N of usable force at 0.5 MPa for light-duty hold-downs.
Packaging line push-off
Ejects cartons from a conveyor at 30-500 mm/s; the short body fits inside tight guarding where a full-length ISO 15552 profile cylinder would overhang.
Lab sample lift
Raises sample trays of up to about 8 kg vertically with a 2:1 margin, using the female M6x1.0 rod thread to bolt a platform straight on.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ20X100-20 with the ACEJ20X100-20
At 157.1 N push (0.5 MPa) this 20 mm bore suits clamping and positioning in the 8-15 kg load class; step down to the 16 mm bore (100.5 N) for lighter jigs or up to a 32 mm bore for higher thrust. The 20 mm adjustment window only shortens the extend stroke, and the stop is not a mid-stroke lock - the rod still drifts if air is lost, so do not use it to hold a load. Pair it with FA/FB flange or LB foot mounts; order the -S variant if CMSE / DMSE position switches are needed. For new builds, specify the ACEJ20X100 instead, as this ACPJ is discontinued.
Replacement checklist
- ✓ Current-production ACE → ACEJ20X100-20
- ✓ 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 ACPJ20X100-20 FAQ
Push is 157.1 N and pull 117.8 N at 0.5 MPa; at 0.7 MPa push rises to 219.9 N and pull to 164.9 N, with a theoretical maximum of 32 kgf at 1.0 MPa. The -20 code sets a 20 mm adjustment window: an external stop screw shortens the 100 mm extend stroke to any length from 80 to 100 mm. It cannot lengthen the stroke past 100 mm, and the stop is not a load-holding brake - the rod drifts if air pressure is lost.
No - the ACPJ20X100-20 is discontinued. The current-production replacement is the ACEJ20X100 (swap the P for an E), which matches the same bore, stroke and force class; confirm the ISO 21287 mounting dimensions before swapping, since the ACP is DIN-standard. This version has no magnet, so no switch can be fitted; order the -S code to enable CMSE / DMSE reed or solid-state switches. Mounting options are FA/FB flange and LB foot, with M5x0.8 ports and PT thread.
Related AirTAC ACE Cylinders
Request a Quote for the ACEJ20X100-20
Send us the quantity and destination. We confirm price, stock and lead time on the ACEJ20X100-20 replacement — usually within 7-8 hours.