This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACEJ20X100-40 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACEJ20X100-40 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 ACPJ20X100-40
The AirTAC Airtac ACPJ Adjustable Compact Cylinder ACPJ20X100-40 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 ACEJ20X100-40 (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 → ACEJ20X100-40
- 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 ACPJ20X100-40
This discontinued AirTAC ACPJ20X100-40 is a double acting compact cylinder with an adjustable extend stroke: a stop screw trims the 100 mm stroke anywhere in a 40 mm window, giving a usable range of 60-100 mm. At 0.5 MPa it pushes 157.1 N and pulls 117.8 N, and at 0.7 MPa it reaches 219.9 N push. The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight fixtures and guarding.
Practical sizing: keep real work to roughly 94 N (about 0.6 of the push rating), which corresponds to lifting around 9 kg vertically, or about 4-5 kg with a 2:1 margin. The body is hard-anodized aluminium with an S45C hard-chrome rod, a fixed TPU bumper at each end, and a female M6x1.0 rod thread. This model has no magnet fitted; the optional -S code adds one for CMSE / DMSE switches. Since ACPJ is discontinued, the current-production drop-in is ACEJ20X100 - confirm ISO 21287 mounting dimensions before swapping.
Airtac ACPJ Adjustable Compact Cylinder ACPJ20X100-40 Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ20X100-40 |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ20X100-40 |
| 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 ACEJ20X100-40 (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 ACEJ20X100-40 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 ACPJ20X100-40
| 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 ACPJ20X100-40 Is Used
Fixture clamping on CNC pallets
The 60-100 mm adjustable range lets a jig builder trim clamp travel to the part after fixturing, with 157.1 N of push at 0.5 MPa holding aluminum workpieces against a hard stop.
Carton ejection from a magazine
A 100 mm stroke pushes folded cartons off a stacking magazine on a packaging line; the compact body fits the shallow frame where a full-length profile cylinder will not.
Small-part press fit station
Pressing bushings into housings needs about 94 N of usable force, well inside this bore's rating, and the stop screw gives repeatable end-of-stroke positioning batch after batch.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ20X100-40 with the ACEJ20X100-40
At 20 mm bore this sits mid-range: the 16 mm bore pushes 100.5 N at 0.5 MPa, while the next step up in the compact family gives noticeably more force if 157.1 N is marginal. The 40 mm window suits machines where the stroke is finalized on site - set the stop screw once and lock it. Remember the adjuster is a mechanical end stop only: on air loss the piston still drifts, so it is not a load-holding brake. FA/FB flange and LB foot mountings bolt to the ISO 21287 face, and ordering the -S variant enables CMSE / DMSE switch position feedback. For new builds, specify the ACEJ20X100 instead.
Replacement checklist
- ✓ Current-production ACE → ACEJ20X100-40
- ✓ 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 ACPJ20X100-40 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. The theoretical maximum is 32 kgf at 1.0 MPa. Operating range is 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), speed 30-500 mm/s, air filtered to 40 um, temperature -20 to +70 C.
The -40 code sets a 40 mm adjustment window: an external stop screw shortens the 100 mm extend stroke to any length down to 60 mm, then the fixed TPU bumpers decelerate at each end. The ACPJ family is discontinued; the current-production replacement is the ACEJ20X100 in the same bore, stroke and force class - confirm the ISO 21287 mounting dimensions before swapping, since ACP is DIN-standard.
Related AirTAC ACE Cylinders
Request a Quote for the ACEJ20X100-40
Send us the quantity and destination. We confirm price, stock and lead time on the ACEJ20X100-40 replacement — usually within 7-8 hours.