This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACEJ20X100-40B — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACEJ20X100-40B 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 ACPJ20X100-40B
The AirTAC Airtac ACPJ Adjustable Compact Cylinder ACPJ20X100-40B 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 ACEJ20X100-40B (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 → ACEJ20X100-40B
- 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 ACPJ20X100-40B
The ACPJ20X100-40B 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 range of 60-100 mm on site. At 0.5 MPa it pushes 157.1 N and pulls 117.8 N; at 0.7 MPa those rise to 219.9 N and 164.9 N, with a theoretical 32 kgf at 1.0 MPa. Its short ISO 21287-class body saves about 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 replacement is ACEJ20X100.
Practical sizing: treat roughly 0.6 of the push force, about 94 N, as the realistic working load at 0.5 MPa, which corresponds to lifting roughly 9 kg vertically with a 2:1 margin. The hard-anodized aluminium body carries an S45C hard-chrome rod, fixed TPU bumpers at both ends, and a male rod thread from the B code. No magnet is fitted, so position switches cannot be mounted unless you order the -S variant; CMSE / DMSE switches work only with that optional magnet. FA/FB flanges and LB feet bolt straight to the standard face.
Airtac ACPJ Adjustable Compact Cylinder ACPJ20X100-40B Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ20X100-40B |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ20X100-40B |
| 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 ACEJ20X100-40B (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 ACEJ20X100-40B 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 ACPJ20X100-40B
| 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 ACPJ20X100-40B Is Used
Small-parts press fitting
With 157.1 N push at 0.5 MPa, the 20 mm bore seats bearings or dowels into aluminium housings on electronics assembly benches, with the 60-100 mm range tuned per fixture.
Pick-and-place gantries
The short body fits cramped Z-axis gantry frames; roughly 9 kg vertical lift capability at a 2:1 margin handles connectors, lids and small machined parts.
Carton and tray indexing
On packaging lines the adjustable stop sets push distance per SKU, advancing trays into print-and-apply stations at speeds up to 500 mm/s.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ20X100-40B with the ACEJ20X100-40B
At 20 mm bore this sits mid-range: the 16 mm bore pushes 100.5 N at 0.5 MPa while the next size up in the family reaches higher thrust, so pick 20 mm when 100 N is marginal. The 40 mm window suits fixtures where the exact stop point is tuned during commissioning. Remember the stop screw is a mechanical end stop only - on air loss the piston still drifts, so it is not a load-holding brake. If you need position feedback, order the -S magnet code for CMSE / DMSE switches. For new builds, specify ACEJ20X100, the current ISO 21287 replacement, and confirm mounting dimensions before swapping.
Replacement checklist
- ✓ Current-production ACE → ACEJ20X100-40B
- ✓ 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 ACPJ20X100-40B FAQ
Push is 157.1 N and pull 117.8 N at 0.5 MPa; at 0.7 MPa push is 219.9 N and pull 164.9 N, with a theoretical maximum of 32 kgf at 1.0 MPa. The -40 code gives a 40 mm adjustment window, so the extend stroke can be trimmed anywhere between 60 and 100 mm via the external stop screw. Operating pressure is 0.15-1.0 MPa (22-145 psi), speed 30-500 mm/s, and the port is M5x0.8. This model is discontinued; ACEJ20X100 is the current replacement.
It is a short-body compact cylinder with a hard-anodized aluminium body, S45C hard-chrome rod and fixed TPU bumpers at both ends, saving about 50% of the mounting length of an ISO 15552 profile cylinder. FA/FB flanges and LB feet bolt to the standard face. Switches need the optional -S magnet code; this B-version has no magnet, so CMSE / DMSE switches cannot be fitted as supplied.
Related AirTAC ACE Cylinders
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